Instruction/ maintenance manual of the product ROC827 Emerson
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Flow Computer Division Form Number A6175 Part Number D301217X01 2 March 2006 ROC827 Remote Operations Controller Instruction Manual.
Issued Mar-06 ii Revision Tracking Sheet March 2006 This manual may be revised periodically to incorporate new or updated information. The revision date of each page appears at the bottom of the page opposite the page number. A change in revision date to any page also changes the date of the manual that appears on the front cover.
Issued Mar-06 iii Contents Chapter 1 – General Information 1-1 1.1 Scope of Manual ............................................................................................................... 1 -1 1.2 Hardware ....................................
Issued Mar-06 iv 2.8 Startup and Oper ation .................................................................................................... 2-19 2.8.1 Startup .......................................................................................
Issued Mar-06 v 5.9 Dial-up Modem Communications Mo dule ...................................................................... 5-12 5.10 Multi-Variable Sensor (MVS ) Interface Modules............................................................5-14 5.
Issued Mar-06 vi.
ROC827 Instruction Manual Issued Mar-06 General Information 1-1 Chapter 1 – General Information This manual focuses on the hardware aspects of the ROC827 Remote Operations Controller (the “ROC82 7”) and the ROC800-Series expanded backplanes (“EXPs”).
ROC827 Instruction Manual Issued Mar-06 General Information 1-2 Chapter 2 Installation and Use Provides information on installation, tools, wiring, mounting the ROC827, and other e ssential elements of the ROC827 and EXPs.
ROC827 Instruction Manual Issued Mar-06 General Information 1-3 Figure 1-1. ROC827 Base Unit (without Expanded Backplane) The ROC827’s CPU contains the microprocessor, the firm ware, a connector to .
ROC827 Instruction Manual Issued Mar-06 General Information 1-4 Figure 1-2 shows a typical expanded backplane (EXP) populated with a full complement of six I/O m odules. Each EXP is composed of the same plastic housing as the ROC827, contains six I/O slots, and has a powered backplane that easily attaches to the ROC827 and other EXPs.
ROC827 Instruction Manual Issued Mar-06 General Information 1-5 The ROC827 holds up to six communi cation ports (refer to Chapter 5, Communications ). Three communication ports are built-in: Local Operator Interface (LOI) – Local Port EIA-232 (RS-232D).
ROC827 Instruction Manual Issued Mar-06 General Information 1-6 Diagnostic monitoring. Real-Time Clock. Automatic self-tes ts. Power saving modes. Local Operator Interface (LO I) EIA-232 (RS-232D) Local Port. EIA-232 (RS-232C) serial Comm2 port.
ROC827 Instruction Manual Issued Mar-06 General Information 1-7 1.2.4 Diagnostic Monitoring The ROC827 has diagnostic inputs in corporated into the circuitry for monitoring system integrity. Use ROCLINK 800 software to access the System Analog Inputs.
ROC827 Instruction Manual Issued Mar-06 General Information 1-8 1.3 FCC Information This equipment complies with Part 68 of the FCC rules. Etched on the modem assembly is, among other in formation, the FCC certification number and Ringer Equivalence Number (REN) for this equi pment.
ROC827 Instruction Manual Issued Mar-06 General Information 1-9 Historical Database. Event and Alarm Log Databases. Applications (PID, AGA, FST, and such). Measurement Station Support. Determining Task Execution. Real-Time Clock.
ROC827 Instruction Manual Issued Mar-06 General Information 1-10 respective database point. These values are available for display and historical archiving.
ROC827 Instruction Manual Issued Mar-06 General Information 1-11 The difference between 16-point and 8-point add ressing b ecomes critical when you have a host device reading data from specific TLPs. For example, under 16-point addressing, channe l 2 for a DI module in slot 2 is referenced by TLP 101,33,3.
ROC827 Instruction Manual Issued Mar-06 General Information 1-12 The historical database is maintain ed in 11 segments. You can configure each segment in the database to archive selected points at s p ecified time intervals. The segments can continuous ly archive or can be turned on and off.
ROC827 Instruction Manual Issued Mar-06 General Information 1-13 AGA 3 calculations conform to the methods described in American Gas Association Report No. 3, Orifice Me tering of Natural Gas and Other Related Hydrocarbon Fluids. Based on the second and third editions, the calculation method is 1992 AGA 3.
ROC827 Instruction Manual Issued Mar-06 General Information 1-14 the user. The ROC827 wakes from Standby m ode when it needs to perform a task. Sleep The ROC827 uses this mode if it detects a low battery voltage.
ROC827 Instruction Manual Issued Mar-06 General Information 1-15 or symbols. Finally, argum ents provi de acces s to process I/O points and retrieve real-tim e values .
ROC827 Instruction Manual Issued Mar-06 General Information 1-16 system keeps time-stamped m inute, peri odic, and daily data values as well as yesterday’s and today’s dail y minimum and maximum values. You can collect history values fr om the ROC827 using ROCLINK 800 or another third-party host system.
ROC827 Instruction Manual Issued Mar-06 General Information 1-17 DS800 Development Suite software allows programming in all five of the IEC 61131-3 languages: Ladder Logic Diagrams (LD). Sequential Function Chart (SFC). Function Block Diagram (FBD).
ROC827 Instruction Manual Issued Mar-06 General Information 1-18 1.8 Related Specification Sheets For technical details on the ROC 827 and the ROC800-Series expanded backplane, refer to the specificati on sheet 6:ROC827. The most current version of this specifica tion sheet is available at www.
ROC827 Instruction Manual Issued Mar-06 Installation and Use 2-1 Chapter 2 – Inst allation and Use This chapter describes the ROC 827 housing (case), its backplane (electronic connection board at the back of the hous ing), the ROC800- Series CPU (central processing uni t), and the ROC800-Series Expanded Backplane (EXP).
ROC827 Instruction Manual Issued Mar-06 Installation and Use 2-2 ground conditions, climate, and acces sibility), th is document only provides generalized guidelines.
ROC827 Instruction Manual Issued Mar-06 Installation and Use 2-3 Choose a location for th e ROC827 away from heavy traffic areas to reduce the risk of being damaged by vehicles. However, provide adequate vehicle access to aid m onitoring and maintenance.
ROC827 Instruction Manual Issued Mar-06 Installation and Use 2-4 2.1.4 Power Installation Requirements Be sure to route power away from hazardous areas, as well as sensitive monitoring and radio equipment. Lo cal and company codes generally provide guidelines for installations.
ROC827 Instruction Manual Issued Mar-06 Installation and Use 2-5 Install a surge protection device at the service disconnect on DC voltage source systems to protect against li ghtning and power surges for the installed equipment.
ROC827 Instruction Manual Issued Mar-06 Installation and Use 2-6 2.3.1 Removing and Replacing End Caps Normal use and maintenance of the ROC827 does not typically require you to remove the end caps on the h ousing. Follow these procedures in case removal is necessary.
ROC827 Instruction Manual Issued Mar-06 Installation and Use 2-7 2.3.3 Removing and Installing Module Covers Before you insert an I/O or communi cations module, remove the module cover over the empty module slots in which you intend to install the modules.
ROC827 Instruction Manual Issued Mar-06 Installation and Use 2-8 Figure 2-1. Side View of the ROC827 Figure 2-2. Bottom View of the ROC827 Note : The distance from the mounting pane l to the front of the ROC827 is 174mm (6.
ROC827 Instruction Manual Issued Mar-06 Installation and Use 2-9 Figure 2-3. Back View of the ROC827 2.4.1 Installing the DIN Rail To install the ROC827 using the 35 x 7.5 mm DIN rails: 1. Mount the lower DIN rail ont o the enclosure panel. 2. Snap the upper DIN rail into the ROC827 upper DIN rail mounting blocks.
ROC827 Instruction Manual Issued Mar-06 Installation and Use 2-10 ROC827 and one EXP: Place catc hes on ROC827 and EXP. ROC827 and two EXPs: Place catches on ROC827 and second EXP. ROC827 and three EXPs: Place catch es on ROC827 and third EXP.
ROC827 Instruction Manual Issued Mar-06 Installation and Use 2-11 Removing the backplane from the housing is not recommended, as there are no field serviceable parts. If the backplane requires maintenance, please contact your local sales representative.
ROC827 Instruction Manual Issued Mar-06 Installation and Use 2-12 2.5.2 Removing an Expandable Backplane Note : Before you remove an EXP, you must power down the ROC827, disconnect all wiring from all modules, and remove the entire unit from the DIN rail.
ROC827 Instruction Manual Issued Mar-06 Installation and Use 2-13 4. Using a flat-bladed screwdriver, gen tly pry the plastic locking clips at the upper and lower back edge of the EXP housing away from their securing tabs. Note : Applying too much pressure breaks the plastic hooks.
ROC827 Instruction Manual Issued Mar-06 Installation and Use 2-14 Figure 2-6. CPU Front View Figure 2-7. CPU Connectors LED Button RESET Button LOI – EIA-232 (RS-232D) x STATUS LED x LICENSE KEYS x .
ROC827 Instruction Manual Issued Mar-06 Installation and Use 2-15 Table 2-1. CPU Connector Locations CPU Number Definitions J4 Not Used P2 LOI Port RJ-45 P3 Ethernet RJ-45 P4 License Key Terminal P6 License Key Terminal SW1 LED Button SW2 RESET Button The CPU contains a microprocessor s upervisory circuit.
ROC827 Instruction Manual Issued Mar-06 Installation and Use 2-16 button, LEDs light and stay lit again for five minutes. By entering a 0 (zero) setting, the LED always stays lit.
ROC827 Instruction Manual Issued Mar-06 Installation and Use 2-17 4. Tighten the two screws on the facepla te of the CPU m odule firmly (see Figure 2-5). 5. Replace the wire channel cover. 6. Review “Restarting the ROC827” in Chapter 6, Troubleshooting .
ROC827 Instruction Manual Issued Mar-06 Installation and Use 2-18 2.7.1 Installing a License Key To install a license key: Caution Failure to exercise proper electrosta tic discharge precautions (suc h as wearing a grounded wrist stra p) may reset the processor or da mage electronic components, resulting in interrupted o peratio ns.
ROC827 Instruction Manual Issued Mar-06 Installation and Use 2-19 2.7.2 Removing a License Key To remove a license key: Caution Failure to exercise proper electrosta tic discharge precautions (suc h as wearing a grounded wrist stra p) may reset the processor or da mage electronic components, resulting in interrupted o peratio ns.
ROC827 Instruction Manual Issued Mar-06 Installation and Use 2-20 Caution Check the input po wer polarity before connecting po wer to the ROC827. Incorrect polarity can damage the ROC8 27.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-1 Chapter 3 – Power Connections This chapter discusses the Power Input modules. It describes the modules, explains how to install and wire.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-2 the ROC800-Series modules via the backplane. The ROC827 requires 11.25 to 14.25 Volts dc for proper operation.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-3 Table 3-1. 12 Volt dc Power Input Terminal Block Connections Terminal Blocks Definition Volts DC BAT+ and BAT– Accepts 12 Volts dc nomin al from an AC/DC converter or other 12 Volts dc supply.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-4 Figure 3-2 . 24 Volt dc Power Input Module Table 3-3. 24 Volt dc Power Input Terminal Block Connections Terminal Blocks Definition Volts DC + and – Accepts 24 Volts dc nomina l from an AC/DC converter or other 24 Volts dc supply.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-5 For the 24 volt Power Input module (PM-24), the AUX voltage is always 12 Volts dc minus ~0.7 Volts. AUX+ / AUX– is internally current-limited by a 0.5 Amp Positive Temperature Coefficient (PTC).
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-6 3.1.4 Switched Auxiliary Ou tput (AUXSW+ and AUXSW–) The AUX SW + and AUX SW – term inals on the 12 volt dc Power Input module (PM-12) provide switched powe r for external devices, such as radios.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-7 3.2 Determining Power Consumption Determining the power consumption requirem ents for a ROC827 configuration involves th e following steps: 1.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-8 General Calculation Process To calculate the power the ROC827 requires: 1. Determine the kind and number of communication modules and the kind and number of expanded backplanes you are implementing.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-9 10. Add the values for the Power System Safety Factor (0.25) to the Total for ROC827 Base Unit, All Modules , and Other Devices to determine the total estimated power consum ption for the configured ROC827 system.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-10 Table 3-5. Estimated Power Consumption Power Consumption (mW) Device Description P TYPICAL Quantity Used Sub-Total (mW) CPU and ROC827 Ba ckpl ane Power Input Module PM-12 110 mA @ 12 volts dc 1320 mW Power Input Module PM-24 55 mA @ 24 volts dc 1320 mW Per Active LED – Maximum 10 1.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-11 3.2.1 Tuning the Configuration The PM-12 Power Input module can supply a m aximum of 36 W (36000 mW) to the backplane, which includes the +T overhead . The PM-24, when operating between –40 ° C to 55 ° C, can supply a maximum of 30 W (30000 mW) to the backplane.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-12 Table 3-6. Power Consumption of the Analog Input Modules Power Consumption (mW) I/O Module Description P TYPICAL Quantity Used Duty Cycle.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-13 Table 3-7. Power Consumption of the Analog Output Modules Power Consumption (mW) I/O Module Description P TYPICAL Quantity Used Duty Cycle Sub-Total (mW) AO Module Base 100 mA @ 12 volts dc 1200 mW Jumper set for +T @ 12 volts dc Channel 1 Channel’s mA current draw from +T * 1.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-14 Table 3-8. Power Consumption of the Discrete Input Modules Power Consumption (mW) I/O Module Description P TYPICAL Quantity Used Duty Cycle Sub-Total (mW) DI Module Base 19 mA @ 12 volts dc No Channels Acti ve 228 m W Channel 1 3.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-15 Table 3-9. Power Consumption of the Discrete Output Modules Power Consumption (mW) I/O Module Description P TYPICAL Quantity Used Duty Cycle Sub-Total (mW) DO Module 20 mA @ 12 volts dc No Channels Acti ve 240 m W Channel 1 1.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-16 Table 3-10. Power Consumption of th e Discrete Output Relay Modules Power Consumption (mW) I/O Module Description P TYPICAL Quantity Used Duty Cycle Sub-Total (mW) DOR Module 6.8 mA @ 12 volts dc No Channels Active 81.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-17 Table 3-11. Power Consumption of the High and Low Speed Pulse Input Modules Power Consumption (mW) I/O Module Description P TYPICAL Quantity Used Duty Cycle Sub-Total (mW) PI Module 21 mA @ 12 volts dc No Channels Acti ve 252 mW Channel 1 7.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-18 Table 3-12. Power Consumption of the MVS Modules Power Consumption (mW) I/O Module Description P TYPICAL Quantity Used Duty Cycle Sub-Total (mW) MVS Module 112 mA @ 12 volts dc 1344 mW Per Active LED – Maximum 2 1.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-19 Table 3-13. Power Consumption of the RTD Modules Power Consumption (mW) I/O Module Description P TYPICAL Quantity Used Duty Cycle Sub-Total (mW) RTD Module 65 mA @ 13.25 volts dc 1 Table Total Duty Cycle An RTD has no associated duty cycle.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-20 Table 3-16. Power Consump tion of Other Devices Power Consumption (mW) Other Device Description P TYPICAL Quantity Used Duty Cycle Sub-To.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-21 3.4 Installing a Power Input Module To install the Power Input module: Caution Failure to exercise proper electrosta tic discharge precautions, such as wearing a grounded wrist stra p may reset the processor or damage electronic components, resulting in interrupted o peratio ns.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-22 The ROC827 should have a minimum of bare wire exposed to prevent short circuits. Allow some slack when making connections to prevent strain. 3.5.1 Wiring the DC Power Input Module Use 12 American Wire Gauge (AWG) wire or smaller for all power wiring.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-23 – CHG+ – BAT+ 5 Amp Fuse + – + – + – + – – Batteri es 809CHG.DSF Solar Regulator So lar Pane l + – 5 Amp F use Power Supply Terminal Block Figure 3-6. 12 Volt dc Power Suppl y and CHG+ and CHG– Wiring 10.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-24 Battery Reserve Battery reserve is the amount of tim e that the batteries can provide power without discharging below 20% of their total ou tput capacity. The battery reserve should be a mini mum of five days, with ten days of reserve preferred.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-25 3.5.3 Replacing the Internal Battery The internal Sanyo 3 volt CR2430 lithium backup battery located on the CPU provides backup of the data and the Real-Time Clock when the main power is not connected.
ROC827 Instruction Manual Issued Mar-06 Power Connections 3-26 7. Insert a plastic screwdriver behi nd the battery and gently push the battery out of the battery holder. Note how the battery is oriented : the negative side of the battery (– ) is placed again st the CPU and the positive (+) towards the + label on th e battery holder.
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-1 Chapter 4 – Input/Output Modules This chapter describes the Input/Out put (I/O) modules used with the ROC827 and expandable backplanes and contains information on installing, wiring, and rem oving the I/O modules.
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-2 DOC0513A Front View Side View Figure 4-1. Typical I/O Module Figure 4-2. Optional I/O Module Lo cations (ROC827 with one EXP) I/O modules for the ROC827 include: Analog Input (AI) modules that provide the ability to monitor various analog field values.
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-3 Analog Output (AO), Discrete Outp ut (DO), and Discrete Output Relay (DOR) modules that provide the ability to manage various control devices. The RTD Input and Thermocouple Input (T/C) modules that provide the ability to monitor various an alog tem perature field values.
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-4 default configurations. Refer to the ROCLINK 800 Configuration Software User Manual (Form A6121). 4.2.1 Installing an I/O Module To install an I/O module in ei ther the ROC827 or the EXP: 1.
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-5 Figure 4-3. Installing an I/O Module 4. Tighten the captive screws on the front of the module. 5. Wire the I/O module (ref er to “Wiring I/O Modules”). 6. Replace the wire channel cover.
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-6 6. Replace the wire channel cover. 4.2.3 Wiring I/O Modules All modules have removable term inal blocks for convenient wiring and servicing. The terminal blocks can accommodate a wide range of wire gauges (12 AWG or smaller).
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-7 Figure 4-4. Analog Input Jumper J4 – Set to +24V 1-5 VOLT DEVICE EXTERNALLY POWERED + - 1-5 VOLT DEVICE EXTERNALLY POWERED + - ROC809 POWERED CURRENT LOOP DEVICE 4-20mA - + OUT SIGNAL COM IN DOC0506A Figure 4-5.
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-8 4.4 Analog Output Modules The 16-bit Analog Output (AO) module has four channels that provide a current output for powering analog devices. Analog Outputs are analog signals the ROC827 generates to regul ate equipment, such as control valves or any device requ iring analog control.
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-9 Figure 4-7. Analog Output Module Field Wiring Note : All I/O modules are isolated on th e field side. Be aware that you can induce ground loops by tying commons from various modules together.
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-10 The left side of Figure 4-8 displays the internal circuitry while the r ight side displays possible field wiring. Note : All I/O modules are isolated on th e field side. Be aware that you can induce ground loops by tying commons from various modules together.
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-11 Caution The Discrete Output module only operates with non-po wered discrete devices, such as relay coils or solid-state s witch inputs. Using the module with powered devices may cause improper oper ation or dam age.
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-12 Note : The Discrete Output Relay modul e operates only with discrete devices having their own power source. When a request is made to change the state of a DOR, the request is immediately sent to the DOR module.
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-13 The PI is most commonly used to interface to relays or open collector/open drain type solid-state devices. The Pulse Input can be used to interface to either self-power ed or ROC827-powered devices.
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-14 + - OPEN DRAIN TY PE OR OPEN COLLEC TOR DEVICE EXTERNALLY POW ERED + - CONTACT-CLOSUR E DEVI CE EXTERNALLY POWERE D 12KHz PI FILTER & LEVEL DETECTION 12KHz PI FILTER & LEVEL DETECTION DOC0510A Figure 4-12.
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-15 The RTD input module works by supplyi ng a small consistent current to the RTD probe and measuring the vol tage drop across it. Based on the voltage curve of the RTD, the ROC 827 firmware converts the signal to temperature.
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-16 Note : All I/O modules are isolated on th e field side. Be aware that you can induce ground loops by tying commons from various modules together.
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-17 by the junction between the different metal of the T/C wiring and the T/C module’s terminal blocks. Note : The use of dissimilar metals is not supported. It will not provide the correct results, as CJC is applied at the module level.
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-18 J OR K THERM OCOUPLE UNGROUNDED SHEATH + - DOC0512B Figure 4-15. Type J and K Thermocouple Wiring Be sure to use the correct type of thermocouple wire to connect the thermocouple to the ROC827.
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-19 Noise Susceptibility Millivolt signals are very small and are very susceptib le to noise. Noise from stray electrical and ma gnetic fields can generate voltage signals higher than the millivolt lev els generated from a thermocouple.
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-20 Note : Only ungrounded probes are supported. It is highly recommended that you use sheathed probes. Use an ungrounded junction for measurements in corrosive environm ents where it is desirable to have the ther mocouple electronically isolated from and shielded by the sheath.
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-21 4.11 Related Specification Sheets Refer to the following specifi cation sheets (available at www.EmersonProcess.com/flow ) for additional and most-current information on each of the I/O modules.
ROC827 Instruction Manual Issued Mar-06 Input/Output Modules 4-22.
ROC827 Instruction Manual Issued Mar-06 Communications 5-1 Chapter 5 – Communications This section describes the built-i n communications and the optional communication modules used with the ROC827. In This Chapter 5.1 Communications Ports an d Modules Ov erview .
ROC827 Instruction Manual Issued Mar-06 Communications 5-2 Figure 5-1. Communication Ports Table 5-2. Communication LED Indicator Definitions Signals Action CTS Clear To Send indicates the modem is ready to send. CD Data Carrier Detect (DCD) indicates a valid carrier signal tone detected.
ROC827 Instruction Manual Issued Mar-06 Communications 5-3 5.2 Installing Communication Modules All communication modules install into the ROC827 in the sam e way.
ROC827 Instruction Manual Issued Mar-06 Communications 5-4 If there is a module currently in the slot , unscrew the captive screws and remove that module (refer to “Rem oving a Communications Module”). If the slot is currently empty, remove the m odule cover.
ROC827 Instruction Manual Issued Mar-06 Communications 5-5 6. Replace the wire channel cover. 5.4 Wiring Communications Modules Signal wiring connections to the communications are made through the communications port removable termin al bock connectors and through RJ- 11 and RJ-45 connectors.
ROC827 Instruction Manual Issued Mar-06 Communications 5-6 Table 5-3. Built-in LOI EIA-232 Signal Routing Signal LOI Function RJ-45 Pins on ROC827 Description DTR Data Terminal Ready 3 Originated by the ROC827 Data Terminal Equipment (DTE) to instruct the Data Communication Equipment (DCE) to setup a conne ction.
ROC827 Instruction Manual Issued Mar-06 Communications 5-7 Pin Wire Color RJ-45 Pins on ROC800- Series 4 Red 5 5 Green 3 6 Yellow 2 7 Brown 7 8 Gray 8 5.5.1 Using the LOI 1. Plug the LOI cable into the LOI RJ-45 connector of the ROC827. 2. Connect the LOI cable to the D- Sub 9 pin (F) to RJ-45 modular converter.
ROC827 Instruction Manual Issued Mar-06 Communications 5-8 You can link Ethernet networks togeth er to form extended networks using bridges and routers. Table 5-6. Ethernet Signal LEDs Signal Function RX Lit when currently receiving. TX Lit when curre ntly transmitting.
ROC827 Instruction Manual Issued Mar-06 Communications 5-9 greater than 400°C (752°F), use plenum rated cables to ensure that cable attenuation remains w ithin specification.
ROC827 Instruction Manual Issued Mar-06 Communications 5-10 The EIA-232 (RS-232) communications includes LED indicators that display the status of the Receive (R X), Transm it (TX), Data Terminal Ready (DTR), and Ready To Send (RTS) control lines.
ROC827 Instruction Manual Issued Mar-06 Communications 5-11 EIA-422/485 (RS-422/485) commun ication modules include LED indicators that display th e status of receive and transmit activity.
ROC827 Instruction Manual Issued Mar-06 Communications 5-12 Figure 5-5. EIA-422/485 (R S-422/485) J4 Jumper Table 5-11. EIA-422 (RS-422) Module Terminated Not Terminated Jumper TER Out Half Full TER Out Half Full J3 x x J4 x x J5 x x J6 x x Table 5-12.
ROC827 Instruction Manual Issued Mar-06 Communications 5-13 Note : When installing a dial-up modem module, you must remove power from the ROC827. The dial-up modem provides communi cations with speeds up to 14.4K bps with V.42 bis and V.42, MNP2-4 and MNP10 error correction, and is FCC Part 68 approved for use with PSTNs.
ROC827 Instruction Manual Issued Mar-06 Communications 5-14 5.10 Multi-Variable Sensor (MVS) Interface Modules The Multi-Variable Sensor (MVS) pr ovides differential pressure, static pressure, and temperature inputs to the ROC827 unit for orifice flow calculation.
ROC827 Instruction Manual Issued Mar-06 Communications 5-15 Figure 5-6. MVS Jumper J4 (Shown Not Terminated) Four wires run from the MVS module terminal block and connect to the sensor. The wires should be a mini mum size of 22 AWG and a maximum length of 1220 m (4000 ft).
ROC827 Instruction Manual Issued Mar-06 Communications 5-16 MVS modules are isolated on the fi eld side. Be aware that you can induce ground loops by ty ing commons together. 5.11 HART Interface Module The HART ® Interface module allows a ROC827 to communicate with HART devices using the Highway A ddressable Remote Transducer (HART) protocol.
ROC827 Instruction Manual Issued Mar-06 Communications 5-17 second per poll for each device, so with five devi ces per channel the maximum poll time for the channel would be five seconds. Note : The ROC827 does not support HART devices configured in Burst mode (in which the device sends info rmation without a prior request).
ROC827 Instruction Manual Issued Mar-06 Communications 5-18 Figure 5-7. HART Interfa ce Module Field Wiring Figure 5-8. HART Channels 1 and 3 (back side of board) CH1 I/O Switch CH3 I/O Switch Represe.
ROC827 Instruction Manual Issued Mar-06 Communications 5-19 Figure 5-9. HART Channels 2 and 4 (front side of board) CH4 I/O Switch CH2 I/O Switch.
ROC827 Instruction Manual Issued Mar-06 Communications 5-20 5.12 Related Specification Sheets Refer to the following specifi cation sheets (available at www.EmersonProcess.com/flow ) for additional and most-current information on each of the communications m odules.
ROC827 Instruction Manual Issued Mar-06 Troubleshooting 6-1 Chapter 6 – T roubleshooting This chapter provides generalized guidelines for troubleshooting the ROC827. Perform the procedures in this chapter before you remove power from the ROC827 for any reas on, after you restore power to the ROC827, and if you disassemble the ROC827.
ROC827 Instruction Manual Issued Mar-06 Troubleshooting 6-2 6.2 Checklists If the LEDs do not display: By default, LEDs on the communication modules and I/O modules enter Sleep mode after five minutes. To turn the LEDs on, press the LED button located on the CPU for one second.
ROC827 Instruction Manual Issued Mar-06 Troubleshooting 6-3 6.2.3 Software If you are experiencing problems with the ROC827 that appear to be software-related, try resetting the ROC827. Note : During a reset and subsequent re-start, the ROC827 loses configuration and log data.
ROC827 Instruction Manual Issued Mar-06 Troubleshooting 6-4 Reset the MVS module back to f actory defaults. Refer to the ROCLINK 800 Configuration Software User Manual (Form A6121). Note : If you believe an MVS module is damaged or faulty, contact your sales representative for repair or replacem ent.
ROC827 Instruction Manual Issued Mar-06 Troubleshooting 6-5 Caution Ensure all input devices, output dev i ces, and processe s remain in a safe state upon restoring power.
ROC827 Instruction Manual Issued Mar-06 Troubleshooting 6-6 Caution Failure to exercise proper electrosta tic discharge precautions, such as wearing a grounded wrist strap may reset the processor or damage electronic components, resulting in interrupted o peratio ns.
ROC827 Instruction Manual Issued Mar-06 Troubleshooting 6-7 9. Remove the test equipment. 6.3.4 Troubleshooting Analog Output Modules Equipment Required : Multimeter.
ROC827 Instruction Manual Issued Mar-06 Troubleshooting 6-8 2. Connect to ROCLINK 800 software. 3. Select Configuration > I/O > DI Points . 4. Select the correct Discre te Input Point Number. 5. Place a jumper across a channel in put term inal (1-8) and COM.
ROC827 Instruction Manual Issued Mar-06 Troubleshooting 6-9 3. Measure the resistance across terminals + and – . A reading of 0 (zero) ohms should be obtained. No c ontinuity should be indicated. 4. Measure the resistance across the terminals + and –.
ROC827 Instruction Manual Issued Mar-06 Troubleshooting 6-10 Caution Failure to exercise proper electrosta tic discharge precautions, such as wearing a grounded wrist strap may reset the processor or damage electronic components, resulting in interrupted o peratio ns.
ROC827 Instruction Manual Issued Mar-06 Troubleshooting 6-11 Do not try to verify a thermocouple th at is connected and actively being monitored by a ROC827 by measur ing the voltage at the ROC827 terminal blocks.
ROC827 Instruction Manual Issued Mar-06 Troubleshooting 6-12 4. Verify the thermocouples have th e correct construction (ungrounded) and are not grounded by other means. 5. Verify you are using the correct th ermocouple wire all the way from the thermocouple to the ROC827 with minimal connections.
ROC827 Instruction Manual Issued Mar-06 Calibration 7-1 Chapter 7 – Calibration This section provides information a bout calibration procedures for the Analog Input (AI) modules, HART Input module, RTD Input module, and Multi-Variable Sensor (MVS) In put m odule.
ROC827 Instruction Manual Issued Mar-06 Calibration 7-2.
ROC827 Instruction Manual Issued Mar-06 Glossary A-1 Appendix A – Glossary Note: This is a generalized glossary of terms. Not all the term s may necessarily correspond to the particular device or software described in this manual.
ROC827 Instruction Manual Issued Mar-06 Glossary A-2 C (continued) Comm Module Module that plugs into a ROC to provide a channel for communications via a specified communications proto col, su ch a s EIA-422 (RS-422) or HART. CF Compare Flag; stores the Signal Value Discrete (SV D).
ROC827 Instruction Manual Issued Mar-06 Glossary A-3 D (continued) DVM Digital voltmeter. DVS Dual-Variable Sensor. A device that provides st atic and differential pre ssure inpu ts to a ROC. E EDS Electronic Static Discharge. EEPROM Electrically Erasable Programmable Read-O n ly Memory, a form of permanent memory on a ROC.
ROC827 Instruction Manual Issued Mar-06 Glossary A-4 H HART Highway Addressable Remote Transducer. Holding Register Analog output number value to be read.
ROC827 Instruction Manual Issued Mar-06 Glossary A-5 M m Meter. mA Milliamp(s); one thousandth of an ampere. MAC Address Media Access Control Add ress; a hardware address that uniquely identifies each node of a network. Manual mode For a ROC, indicates that the I/O scanning has been disabled.
ROC827 Instruction Manual Issued Mar-06 Glossary A-6 P, Q (continued) P/DP Pressure/Differential Pressure. PI Pulse Input. PID Proportional, Integral, and Derivative control feedb ack actio n. PIT Periodic Timer Interrupt. PLC Programma bl e Logic Controller.
ROC827 Instruction Manual Issued Mar-06 Glossary A-7 R (continued) RS-232 Serial Communications Protocol u sin g three o r more signal lines, intended for short distances. Also referred to as the EIA-2 32 stan dard. RS-422 Serial Communications Protocol u sin g four signal lin es.
ROC827 Instruction Manual Issued Mar-06 Glossary A-8.
ROC827 Instruction Manual Issued Mar-06 Index I-1 Index + +12 V dc Analog I nput .................................................... 4-6 Pulse I nput .................................................... 4-13 +24 V dc Analog I nput ...................
ROC827 Instruction Manual Issued Mar-06 Index I-2 Discrete Output Relay LEDs .............................................................. 4-11 Troubleshooting ............................................... 6-8 Discrete Ou tputs ....................
ROC827 Instruction Manual Issued Mar-06 Index I-3 Fuse Installin g .......................................................... 3-5 Removing ........................................................ 3-5 G Gauges, wire ....................................
ROC827 Instruction Manual Issued Mar-06 Index I-4 Low Mode s .................................................... 1-13 Operatin g ....................................................... 1-13 Requirement s ..............................................
ROC827 Instruction Manual Issued Mar-06 Index I-5 5- 7. Built-in EIA-232 (RS-232) Signal Routing – Comm2 ........................................................ 5-10 5- 8. EIA-232 (RS-232) Communi cation Module Signal Routing – Comm3, Comm4, and Comm5 .
ROC827 Instruction Manual Issued Mar-06 Index I-6 If you have comments or questions regarding thi s manual, please direct them to your local sale s representative or contact: Emerson Process Management Flow Computer Division Marshalltown, IA 50158 U.S.
An important point after buying a device Emerson ROC827 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Emerson ROC827 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Emerson ROC827 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Emerson ROC827 you will learn all the available features of the product, as well as information on its operation. The information that you get Emerson ROC827 will certainly help you make a decision on the purchase.
If you already are a holder of Emerson ROC827, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Emerson ROC827.
However, one of the most important roles played by the user manual is to help in solving problems with Emerson ROC827. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Emerson ROC827 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
