Instruction/ maintenance manual of the product P485 GE
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GE Multilin 215 Anderson Avenue, Markham, Ontario Canada L6E 1B3 T el: (905) 294-6222 Fax: (905 ) 201-2098 Internet: http://www . GEmultilin.com P485 Modbus t o Pr ofibus Conver te r Instruction Manua.
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P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE i GE Consumer & Industrial P485 Modbus to Profibus Converter Table of contents INTRODUCTION Getting started ......................... .................................... ..........................
ii P485 MODBUS T O PROFIBUS CON VERTER – USER GUIDE TABLE OF CONTENTS Profibus installation procedure ............... .............................. ..............................2–7 Profibus configuration tool ............ ................... ...
TABLE OF CONTENTS P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE iii Basic settings ........................... .............................. ................................... .............. 5–2 Parameter window ............... ...............
iv P485 MODBUS T O PROFIBUS CON VERTER – USER GUIDE TABLE OF CONTENTS Step 1: Selecting the fiel dbus type............ ................... ................ .................. ................... ........ .......... 9–6 Step 2: Selecting the sub-ne twork properties .
P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 1–1 GE Consumer & Industrial P485 Modbus to Profibus Converter Chapter 1: Introduction Introduc tion Getting start ed INSPECTING THE PACKAGE AND.
1–2 P485 MODBUS T O PROFIBUS CON VERTER – USER GUIDE INTRODUC TION Document conventions DESCRIPTION The following conventions are used thr oughout this document: • Numbered lists pr ovide sequential steps. • Bulleted lists provide information, not procedural steps.
INTRODUCTION P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 1–3 About the P485 Modbus to Profibus Convert er APPLICATION The P485 Modbus to Profibus Converter (or P 485) acts as a gateway between the Modbus protocol and a Profibus-DP network.
1–4 P485 MODBUS T O PROFIBUS CON VERTER – USER GUIDE INTRODUC TION Ordering ORDER CODES The following table illustrat es the order code s for the P4 85 Modbus to Pr ofibus Converter. Specifications MECHANICAL HOUSING Plastic housing with snap-on connection to DIN-rail, protection class IP20 DIMENSIONS L x W x H: 120 mm × 75 mm × 27 mm (4.
P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 2–1 GE Consumer & Industrial P485 Modbus to Profibus Converter Chapter 2: Installation Instal lation Quick install PROCEDURE 1. Snap the P485 on to the DIN-rail (se e DIN-rail mounting on page 2–5).
2–2 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE INSTALLATION Figure 2-1: P485 electr ical connections PROFIBUS CONNECTOR The Pr ofibus connector is indicated as A in the figur e above. This connector is used to connect the P485 to the Profibus netw ork .
INSTALLATION P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 2–3 CONFIGURATION CABLE The PC connector is indicat ed as B in Figure 2 -1: P485 electric al connections on page 2–2. This connector is used to connect the P485 to a PC using the configura tion cable for configuration and monitoring purposes.
2–4 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE INSTALLATION Figure 2-5: Configuration cable (P C end) MODBUS CONNECTOR The Modbus connector is indicated as C in Fig ure 2- 1: P 485 elec tri cal con nec tio ns on pag e 2–2. This connector is used to connect the P485 to the serial network.
INSTALLATION P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 2–5 Mechanical installation DIN-RAIL MOUNT ING The DIN-rail connector is inte rnally connected to the P485.
2–6 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE INSTALLATION CONFIGURATION SWITCHES The configuration switches are used to set the Pr ofibus node address. Normally, these switches are co ver ed by a plast ic hatch. Note that the node address can not be changed during runtime, i.
INSTALLATION P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 2–7 For example, to set the node address to 42, set switch A to “2” and switch B to “4” . When removing the hatc h, avoid touching th e circuit boards and components. Exercise caution when using tools to open the hat ch.
2–8 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE INSTALLATION Tro u b l e s h o ot i n g DESCRIPTION Problem during configuration upload/down load. The Config Line LED turns r ed. • Serial communication failed – try again. The serial port seems to be available, but it is not possible t o connect to the P485.
P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 3–1 GE Consumer & Industrial P485 Modbus to Profibus Converter Chapter 3: Data exchange Data ex change Over view DESCRIPTION Data from the fieldbus (Profibus) and the sub network (Modbus) is stor ed in an internal memory buffer .
3–2 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE DATA EXCHANGE Figure 3-2: Data exchange over view Memory Map MEMORY LOCATIONS When configuring the sub-network, use the memory locations shown b.
DATA EXCHANGE P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 3–3 • Status register (0x0000 to 0x0001): If enabled, this r egister occupies the first two bytes in the input data area. For mor e information, see Cont rol and status registers on page 8–1.
3–4 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE DATA EXCHANGE • Message frame : The message frame contains a description of what is actually transmitted on the sub-network and consists of frame objects (see figure above). • Frame object : Frame objects are used to compose a message frame.
P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 4–1 GE Consumer & Industrial P485 Modbus to Profibus Converter Chapter 4: Software overview Software overvi ew Introduction DESCRIPTION EnerVista P485/D485 Setup is a PC-based conf iguration software used to describe the protocol and communication pr oper ties for a serial network.
4–2 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE SOFTWARE OVERVIEW Using the EnerVista P485/D485 Setup softwar e DESCRIPTION When creating a new sub netw ork configuration, EnerVista P485/D485 Setup pr ovides a choice between starting out with a blank configurati on, or using a predefined template (configuration wizard).
SOFTWARE OVERVIEW P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 4–3 SELECT FIE LDBUS TYP E The first step in the configuration wizar d selects the fieldbus type. The fieldbus is the higher layer network that communicates with the serial device(s) on the modb us sub-network via the P485 converter .
4–4 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE SOFTWARE OVERVIEW SUB- NETW ORK PROPERTIES The second step in the configuration wizard selects the properties for the Modbus sub- network.
SOFTWARE OVERVIEW P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 4–5 • Pari ty : The parity can be selected as "Odd", "E ven", or "None". This is a simple err or check method capable of detecting single bit communica tion errors on a serial network (i.
4–6 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE SOFTWARE OVERVIEW The wizard can accept memory addresses fr om 0 to 9999 (0x270F). For higher memory addresses, please use the protocol building blocks (refer to Protocol building blocks on page 3–3 for additional details).
SOFTWARE OVERVIEW P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 4–7 The Modbus Command column shows the Modbus command assigned by the wizard. The Modbus command is automatically selected by the wizard based on the se lected address and direction.
4–8 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE SOFTWARE OVERVIEW SELECTING PARAMETERS FOR EACH NODE The fifth step in the configuration wizard selects the parameters that shall be mapped to the Fieldbus Network. All previously configured parameters will appear at this point , including parameters saved to a file.
SOFTWARE OVERVIEW P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 4–9 If the Sub-net Overview button is pressed, a new window will appears that graphically displays how the data is mapped to the internal memory of the P485. Configuration main window DESCRIPTION The main window is shown below .
4–10 P485 MODBUS T O PROFIBUS CONVER TER – USER GUIDE SOFTWARE OVERVIEW NAVIGATION WINDO W The navigation window in EnerVista P485/D485 Setup is the main tool fo r selecting the different levels of the configuration. There ar e three main levels in the navigation window , namely fieldbus, P485, and Modbus network.
SOFTWARE OVERVIEW P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 4–11 OPTIONS WINDOW In the main window under tools, select options. Fieldbus configuration DESCRIPTION During start-up, the fiel dbus interface is init i alized to fit the configuration created in the EnerVista P485/D485 Setup softwar e.
4–12 P485 MODBUS T O PROFIBUS CONVER TER – USER GUIDE SOFTWARE OVERVIEW P485/D485 configuration PARAMETER WINDOW By selecting 'P485/D485 ' in the Navigation window , basic configuration options for the sub-net will appear in the P arameter wi ndow .
SOFTWARE OVERVIEW P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 4–13 Modbus network configuration OVERVIEW When controlling a Modbus sub-net work with the P485 it is important to understand functions during starting up.
4–14 P485 MODBUS T O PROFIBUS CONVER TER – USER GUIDE SOFTWARE OVERVIEW.
P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 5–1 GE Consumer & Industrial P485 Modbus to Profibus Converter Chapter 5: Communication model Communi cation mo del Introduction DESCRIPTION In master mode, the P485 is configured to r un as a master on the Modbus sub-network, using a scan-list for communication with the Modbus slave devices.
5–2 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE COMMUNICATION MODEL The P485 uses pre-configur ed Modbus RTU commands, acting as a Modbus RTU master . With Modbus RTU, each transaction is substituted with a pre-defined command that can be selected from a list of av ailable commands.
COMMUNICATION MOD EL P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 5–3 Nodes DESCRIPTION A node in the EnerVista P485/D485 Setup soft w are represents a device on the Modbus sub-network. In it ’ s simplest form, a Node contains of a single transaction, that consists of a Query and a Response.
5–4 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE COMMUNICATION MODEL • Insert : Inser t a node from the clipboar d. • Delete : Deletes a node and its configuration from the scan list . • Monitor : Activates the node monitor . • Add command : Adds a pre-defined protocol specific c o m m an d t o t he s c a n li s t .
COMMUNICATION MOD EL P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 5–5 • Update mode : This parameter is used to specify when the command should be sent to the slave. The following modes are possible: – Cyclical ly: The command is sent to the slave at the time int erval specifi ed in the “Update time” parameter .
5–6 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE COMMUNICATION MODEL.
P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 6–1 GE Consumer & Industrial P485 Modbus to Profibus Converter Chapter 6: Frame and command editors Frame and command edit ors Frame editor DESCRIPTION The frame editor makes it easier to add specific custom c ommands.
6–2 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE FRAME AND COMMAND EDITORS This command will al locate two bytes of output data in the OUT area and no swapping will occur . The data is followed by a two-byte CRC error check field and the CRC calculation starts with the first byte in the frame (0x0000).
FRAME AND COMMAND EDITORS P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 6–3 SPECIFYING A NEW COMMAND Select ‘Add Command’ as described earlier . This example is taken from a Modbus R TU implem entation, which means that the frame will always consist of one byte for slave a ddres s, one byte for function code and tw o bytes for CRC.
6–4 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE FRAME AND COMMAND EDITORS It is not possible to alter the contents of colum ns 1, 2 and 4, as these are pre-defined commands. However , on column 3 there are two possible actions: Inser t Column and Delete Column.
P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 7–1 GE Consumer & Industrial P485 Modbus to Profibus Converter Chapter 7: Modbus network and node monitors Modbus networ k and node monitors Modbus network monitor GENERAL The Modbus network monitor is intended to simplif y config uration and troubleshooting of the Modbus network.
7–2 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE MODBUS NETWORK AND NODE MONITORS OPERATION The Modbus network monitor window is shown below . Figure 7-1: Modbus network monitor A: Star t / Stop sub network scanning These icons are used to start / stop the scanning of the Modbus network .
MODBUS NETWORK AND NODE MONITORS P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 7–3 Node monitor GENERAL The node monitor functionality provides an aid when setting up the communication with the slave-devices on the M odbus network. It offers an easy way of testing a specific command on a node, and monitor the r esult .
7–4 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE MODBUS NETWORK AND NODE MONITORS D: Command Area This area displays the currently selected command. E: Response Area This area displays the response of a previously sent command. F: Monitor Area This area provides an overview of the d ata sent/received from the node.
P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 8–1 GE Consumer & Industrial P485 Modbus to Profibus Converter Chapter 8: Advanced functions Advanced functions Control and status r egist ers DESCRIPTION The control/status registers forms an interf ace for exchanging information betw een the fieldbus control system and the P485.
8–2 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE ADVANCED FUNCTIONS CONTRO L CODES The following control codes are re cognized by the P485 and can be used by the fieldbus control system.
ADVANCED FUNCTIONS P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 8–3 STATUS CODES The status codes are described in the following table. HANDSHAKING PROCEDURE The handshake bits are used to indicate any changes in the status and contr ol registers.
8–4 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE ADVANCED FUNCTIONS Input/output data during startup DESCRIPTION This section is only relevant when the control/handshake r egisters are enabled. Bit 13 in the control r egister is used to ensure data consistency during start-up and at fieldbus off-line/on-line transitions.
ADVANCED FUNCTIONS P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 8–5 Advanced fieldbu s configuration MAILBOX COMMAND This advanced function is specifically design ed for DeviceNet converter (D485) and not for Profibus converter (P485). Right clicking on the Fieldbus submenu items gives option of inserting a mailbox.
8–6 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE ADVANCED FUNCTIONS.
P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 9–1 GE Consumer & Industrial P485 Modbus to Profibus Converter Chapter 9: Application example Applica tion example Introduction OVERVIEW The chapter describes how to configure the P 485 M odbus to Profibus Converter to allow GE Multilin relays and meters to communicate on a Profibus Network .
9–2 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE APPLICATION EXAMPLE SYST EM SETUP This chapter describes how to set up the P 485 with MM2 relay and P QMII meter to read and write parameters. It can also be used as a guideline to setu p the P485 Modbus to Profibus Converter for communication with any GE Multilin r elays.
APPLICATION EXAMPLE P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 9–3 Modbus user map setup DESCRIPTION GE Multilin Relays and Meter s support the Modbus User Map feature in their softwar e. This feature can be used with the P485 to reduce the number of Modbus transactions and improve communication speed.
9–4 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE APPLICATION EXAMPLE 4. Set the user map registers as follows and save to the relay. Figure 9-2: MM2 meter user map setting The five parameters are now mapped to us er memory map data at 0x0100 to 0x0104.
APPLICATION EXAMPLE P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 9–5 Syste m con fi gura tion OVERVIEW An over view of the system configuration described in this document is shown below . Figure 9-3: System conf iguration The following procedur es describe how to co nfigure for the P485 with the PQMII and MM2.
9–6 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE APPLICATION EXAMPLE INSTALLING THE ENER VISTA P485/D485 SETUP SOFTWARE The following procedur e describes how to configure the EnerVista P485/D485 Setup software. 1. Install the EnerVista P485/D485 Setup software.
APPLICATION EXAMPLE P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 9–7 STEP 2: SELECTI NG THE SUB-NETWORK PROPERTIES The second step in the configuration wizard is to select the sub-network pr operties. 1. Set the Modbus network properties as follows: baud rate to 19200, with 8 data bits, no parity, RS485 physical st andard, and 1 stop bit .
9–8 P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE APPLICATION EXAMPLE 3. Select the PQMII.D01 file from the list and click on Open . 4. The software will display a list of the mo st commonly used p arameters configured for the P QMII. Figure 9-9: Parameters configured for P QMII 5.
APPLICATION EXAMPLE P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 9–9 STEP 4: CONNECT DEVICES TO THE SUB- NETWORK The fourth step in the configu ration wizard is to connect the configured device types to the sub-network. The P QMII and MM2 devi ces are connected in this step.
9–10 P485 MODBUS T O PROFIBUS CONVER TER – USER GUIDE APPLICATION EXAMPLE STEP 5: SELECT PARAMETERS FOR EACH NODE The fifth step in the configuration wizard is to select parameters for each node. The parameters for the PQMII and MM2 devices ar e selected in this step .
APPLICATION EXAMPLE P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 9–11 5. Click Next to proceed to the final step of the configuration wizard STEP 6: CONFIGURATION REP OR T The final st ep in the w izard provid es a configurat ion report for the device.
9–12 P485 MODBUS T O PROFIBUS CONVER TER – USER GUIDE APPLICATION EXAMPLE SAVING DEVICE DATA After the confi guration wizard is complete, th e softwar e will prompt to save the device data (if necessary). Click on Ye s to save the device. The data can be saved in the same or different device files.
APPLICATION EXAMPLE P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 9–13 1. Expand the Modbus Network item in the tree. All the configured parameters will appear as commands. Figure 9-21: Expandin g the tree 2. Expand the User memor y map values (F1) command in the PQ MI I M ete r item and click on Query .
9–14 P485 MODBUS T O PROFIBUS CONVER TER – USER GUIDE APPLICATION EXAMPLE 4. Verify that the data Update mode is “Cyclically” with default Update time of 100 × 10 ms = 1000 ms. This can be changed to any v alue between 10 ms (1 × 10 ms) to 655350 ms (65535 × 10 ms).
APPLICATION EXAMPLE P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 9–15 DOWNLOADING THE CONFIGURATIO N FILE Save the configuration file for futur e use. The save command i s available in File menu. The following procedure demonstrates how to save the configuration file to the P485.
9–16 P485 MODBUS T O PROFIBUS CONVER TER – USER GUIDE APPLICATION EXAMPLE Profibus network setup DESCRIPTION Each device on a Profibus-DP network is associated with a GSD file that contains all necessary information about the device. This file is used by the Profibus configuration tool during configuration of the network .
P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE 10–1 GE Consumer & Industrial P485 Modbus to Profibus Converter Chapter 10: Miscellaneous Miscellane ous Revision hist ory RELEASE DAT ES CHANGES TO THE MANUAL As this is the first version of the P485 Modbus to Pr ofibus Converter manual, there ar e no changes to report .
10–2 P485 MODBUS T O PROFIBUS CONVER TER – USER GUIDE MISCELLANEOUS.
P485 MODBUS TO PROFIBUS C ONVERTER – USER GUIDE i GE Consumer & Industrial P485 Modbus to Profibus Converter Index A APPLICATIO NS .................... ............ ............... ....................... ............... .... 1–3 B BAUD RATE .
ii P485 MODBUS T O PROFIBUS CONVERTER – USER GUIDE INDEX MODBUS address format ........... ............ ............ ............ .............. ..................4–5 commands ................. ........... ............ ............ .............. .
An important point after buying a device GE P485 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought GE P485 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 GE P485 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, GE P485 you will learn all the available features of the product, as well as information on its operation. The information that you get GE P485 will certainly help you make a decision on the purchase.
If you already are a holder of GE P485, 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 GE P485.
However, one of the most important roles played by the user manual is to help in solving problems with GE P485. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device GE P485 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
