Instruction/ maintenance manual of the product MLT 4 Emerson Process Management
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ww w .EmersonProcess.com Instruction Manual AK Protocol Communication Option for ML T 1, ML T 2, ML T 3, ML T 4, ML T 5 and CA T 200 3 rd Edition 1 1/2003 Instruction Manual 90003752 1 1/2003.
AK Protocol for ML T 1, 2, 3, 4, 5 & CA T 200 Instruction Manual 90003752 11/2003 Emerson Process Management GmbH & Co. OHG Industriestrasse 1 D-63594 Hasselroth Germany T +49 (0) 6055 884-0 F +49 (0) 6055 884-209 Internet: www .EmersonProcess.
90003752(2) [AK-Commands] 11/01 AK Contents I) V24/RS232/485 Interface – Basics 1 - 1 1 Introducti on .................................................................................................1 - 1 2 Hardware .................................
AK 90003752(1) [AK-Commands] 10/98.
I) V24/RS232/485-Interface - Basics 90003752(2) [AK-Commands] 11/01 AK 1 - 1 Protocol settings of a serial interface between a test bench control computer and peripheral analyzers on exhaust test benches 1. Introduction The serial interface is made for slow point to point connections (f ≤ 10 Hz).
1 - 2 AK 90003752(2) [AK-Commands] 10/01 2. Hardware 1. Baud rate: 1200, 2400, 4800, 9600, 19200 2. Length of signs: 1 start bit 7 or 8 data bits 1 or 2 stop bits 3. Parity: even/odd/none 4. Operating: full duplex, no echo 5. Handshake: Xon/Xoff 6. Plug: 9 pin sub d, socket 7.
I) V24/RS232/485-Interface - Basics 90003752(2) [AK-Commands] 11/01 AK 1 - 3 3. Protocol settings The data and command transfer protocol has the following structure: 3.1. Command telegram 1. Byte STX 2. Byte DON'T CARE 3. Byte FUNCT. CODE 1 4. Byte FUNCT.
1 - 4 AK 90003752(2) [AK-Commands] 10/01 3.2. Response telegram 1. Byte STX 2. Byte DON'T CARE 3. Byte FUNCT. CODE 1 4. Byte FUNCT. CODE 2 HEAD 5. Byte FUNCT. CODE 3 6. Byte FUNCT. CODE 4 7. Byte BLANK 8. Byte ERROR STATUS FIXED DATA D A VARIABLE DATA T (can also disappear, A depending on the function code) n.
I) V24/RS232/485-Interface - Basics 90003752(2) [AK-Commands] 11/01 AK 1 - 5 3.3. Comm and telegram for RS485 BUS operating 1. Byte STX 2. Byte BUS ADDRESS 3. Byte FUNCT. CODE 1 4. Byte FUNCT. CODE 2 HEAD 5. Byte FUNCT. CODE 3 6. Byte FUNCT. CODE 4 7.
1 - 6 AK 90003752(2) [AK-Commands] 10/01 3.4. Response telegram for RS485 BUS operating 1. Byte STX 2. Byte BUS ADDRESS 3. Byte FUNCT. CODE 1 4. Byte FUNCT. CODE 2 HEAD 5. Byte FUNCT. CODE 3 6. Byte FUNCT. CODE 4 7. Byte BLANK 8. Byte ERROR STATUS FIXED DATA D A VARIABLE DATA T (can also disappear, A depending on the function code) n.
I) V24/RS232/485-Interface - Basics 90003752(2) [AK-Commands] 11/01 AK 1 - 7 4. Specifications of data settings 4.1. Head telegram (Header) The begin of each transfer is a "STX" in the fi rst byte. Each "STX" will start a new transfer.
1 - 8 AK 90003752(2) [AK-Commands] 10/01 4.2. Data block and error status byte The data presentation is variable. A fixed format will not be used. A bl ank or a <CR> with <LF> will be used as separating characters of data.
I) V24/RS232/485-Interface - Basics 90003752(2) [AK-Commands] 11/01 AK 1 - 9 If an analyzer or a system is not in the "REM OTE" status, the cont rol and write commands have to report "OF" ("Offline") in the data set to the.
1 - 10 AK 90003752(2) [AK-Commands] 10/01 4.4. Comm and and response telegram timing For each command telegram of the TBCC t he peripheral analyzer sends a response telegram. It is not allowed for the TBCC to send new command telegrams before this response telegram is received.
I) V24/RS232/485-Interface - Basics 90003752(2) [AK-Commands] 11/01 AK 1 - 11 5. Examples for potential responses to control or write commands resp. to command telegrams with data (format) errors: 1. Analyzer and/or system unit with several analyzers "Online" and called analyzers are existing.
1 - 12 AK 90003752(2) [AK-Commands] 10/01 2. Analyzer and/or system unit with several analyzers "Offline" and called analyzers are existing. 1. Byte STX 2. Byte DON'T CARE 3. Byte C 4. Byte O 5. Byte D 6. Byte E 7. Byte BLANK 8. Byte x Error status byte 9.
I) V24/RS232/485-Interface - Basics 90003752(2) [AK-Commands] 11/01 AK 1 - 13 3. Called system unit "online", called single analyzer not available. If the test bench control comput er will call the devices directly and the system unit or the analyzer are not available, y ou will not get any response telegram.
1 - 14 AK 90003752(2) [AK-Commands] 10/01 4. Called system unit "offline", called single analyzer not available. If the test bench control comput er will call the devices direct ly and the system unit or the analyzer are not available, y ou will not get any response telegram.
I) V24/RS232/485-Interface - Basics 90003752(2) [AK-Commands] 11/01 AK 1 - 15 Error status byte: Value is zero: Device without error. Value is not zero: Device with one or more errors. 11. Byte: Channel number zero: "System unit offline" 17.
1 - 16 AK 90003752(2) [AK-Commands] 10/01 5. Called unit or channel is busy with a running function. 1. Byte STX 2. Byte DON'T CARE 3. Byte C 4. Byte O 5. Byte D 6. Byte E 7. Byte BLANK 8. Byte x Error status byte 9. Byte BLANK 10. Byte K 11. Byte n 12.
I) V24/RS232/485-Interface - Basics 90003752(2) [AK-Commands] 11/01 AK 1 - 17 6. The data are incomplete or the data do not have the expected format. 1. Byte STX 2. Byte DON'T CARE 3. Byte C 4. Byte O 5. Byte D 6. Byte E 7. Byte BLANK 8. Byte x Error status byte 9.
1 - 18 AK 90003752(2) [AK-Commands] 10/01 7. The data or the parameters do not have the expected size. 1. Byte STX 2. Byte DON'T CARE 3. Byte C 4. Byte O 5. Byte D 6. Byte E 7. Byte BLANK 8. Byte x Error status byte 9. Byte BLANK 10. Byte K 11. Byte n 12.
I) V24/RS232/485-Interface - Basics 90003752(2) [AK-Commands] 11/01 AK 1 - 19 6. Function sequence and error status after the receipt of the 'SRES' or 'STBY' commands 1. The test bench control computer is sending the control command SRES (Reset) to the system unit or any single analyzer.
1 - 20 AK 90003752(2) [AK-Commands] 10/01 2. The test bench control computer is sending the control command S TB Y ( St a nd - by ) to the system unit or any single analyzer. There are two different cases: ! If the system or the analyzer is resting, this mode will be finished.
I) V24/RS232/485-Interface - Basics 90003752(2) [AK-Commands] 11/01 AK 1 - 21 # The system or the analyzer is in the oper ation mode SXYZ. This mode will be finished. Then, it will be tried to get the stand-by mode ready for an error free measurement.
1 - 22 AK 90003752(2) [AK-Commands] 10/01.
II) V24/RS232/485 In te r fa ce - Single Analy zers and Systems 90003752(1) [AK-Commands] 10/98 AK 2 - 1 Specifications of the criteri ons and codes for the communication between • the front-end computer (syst em computer) of an exhaust analyzer system and the test bench control computer.
2 - 2 AK 90003752(3) [AK-Commands] 11/03 1. Basic Informations You can distinguish three cases: (1) Exhaust analyzer system: Some analyzers are combined logically. That means, these analyzers are connected with the TBCC via an front-end com puter (system computer).
II) V24/RS232/485 In te r fa ce - Single Analy zers and Systems 90003752(1) [AK-Commands] 10/98 AK 2 - 3 The codes determined in this manual are valid for the communication between • the TBCC and the front-end comput er of an exhaust analyzer system.
2 - 4 AK 90003752(3) [AK-Commands] 11/03 If it is possible in a system to put singl e channels together to lines, so the following definition will be valid: A line is the summary of "1-x" analyzers to a logical group "y", that can be switched physically to a gas channel "z".
II) V24/RS232/485 In te r fa ce - Single Analy zers and Systems 90003752(1) [AK-Commands] 10/98 AK 2 - 5 2. List of all Codes 2.1. Control commands CODE Function Page SALI Kn Mm Linearization check with spangas 2 - 8 SARA Kn Autoranging "OFF" (located range will remain) 2 - 9 SARE Kn Autoranging "ON" 2 - 9 SATK Kn Autom.
2 - 6 AK 90003752(3) [AK-Commands] 11/03 2.2. Read commands CODE Function Page AAEG Kn Spangas deviation 2 - 39 AALI Kn Mm Deviations of the last linearization checks with spangas 2 - 40 AANG Kn Zerog.
II) V24/RS232/485 In te r fa ce - Single Analy zers and Systems 90003752(1) [AK-Commands] 10/98 AK 2 - 7 2.3. Write commands CODE Function Page EFDA Kn CODE DATA Zero- /spangas time (function length o.
2 - 8 AK 90003752(3) [AK-Commands] 11/03 3. Description of all Control Commands SALI – Control command "Linearization check with spangas" Starting this command the analyzer in a syst em or the single analyzer will start the spangas flow with all available spangases one after another.
II) V24/RS232/485 In te r fa ce - Single Analy zers and Systems 90003752(1) [AK-Commands] 10/98 AK 2 - 9 SARA – Control command "Autoranging OFF" SARE – Control command "Autoranging.
2 - 10 AK 90003752(3) [AK-Commands] 11/03 SATK – Control command "Automatic calibration" Starting this command the analyzers in a system or the single analyzer will start a calibration procedure to determine the correcti on values. The required calibration gases and the pumps will be switched on automatically.
II) V24/RS232/485 In te r fa ce - Single Analy zers and Systems 90003752(1) [AK-Commands] 10/98 AK 2 - 11 Stability control procedure Yes Yes No No Yes No Wait dead time Tt, if gases were switched Sta.
2 - 12 AK 90003752(3) [AK-Commands] 11/03 Stability control Stability controlled procedure of the zero/span calibration Dead time Tt Time-out Stability time Ts Ti 2 * Deviation K1 Knew Knew Signal = K.
II) V24/RS232/485 In te r fa ce - Single Analy zers and Systems 90003752(1) [AK-Commands] 10/98 AK 2 - 13 Only for platform: SCAL – Control command "Start system calibration" To control the system calibration procedures the commands "SCAL", "STBY" and "ASTZ" have to be used.
2 - 14 AK 90003752(3) [AK-Commands] 11/03 STBY K0 Function associated to the whole system unit Code Only using the channel number 0 (K0) will st op running "SYSCAL" proc edure. Besides, all procedures of the other analyzer modules will be stopped.
II) V24/RS232/485 In te r fa ce - Single Analy zers and Systems 90003752(1) [AK-Commands] 10/98 AK 2 - 15 SEGA – Control command "Spangas" Starting this command the analyzers in a system or the single analyzer will switch on the calibration valve to spangas and switch on t he required pumps.
2 - 16 AK 90003752(3) [AK-Commands] 11/03 SEMB – Control command "Set range" Starting this command the analyzers in a syst em or the single analyzer will set the range that is named in the data. If t he function "Autoranging" is runni ng at that moment, it will be stopped and the named range will be selected.
II) V24/RS232/485 In te r fa ce - Single Analy zers and Systems 90003752(1) [AK-Commands] 10/98 AK 2 - 17 Only for CLD module: SENO/SNOX – Control command "Operation mode CLD" Starting the command "SENO" the CLD analyzers in a system or the single CLD analyzer will start the NO measurement.
2 - 18 AK 90003752(3) [AK-Commands] 11/03 SFRZ – Control command "Decimal point setup for floating point format" With this command the format of real numbers will be setup. This command will have an effect to the output of all real numbers.
II) V24/RS232/485 In te r fa ce - Single Analy zers and Systems 90003752(1) [AK-Commands] 10/98 AK 2 - 19 SGTS – Control command "Device test" Starting this command the analyzers in a system or the single analyzer will switch off the calibration gas and the samplegas.
2 - 20 AK 90003752(3) [AK-Commands] 11/03 SHDE – Control command "Hold status ON" SHDA – Control command "Hold status OFF" We have the possibility to activate the "Hol d"-feature not only per calibration. We can do this also by AK-Command "SHDE".
II) V24/RS232/485 In te r fa ce - Single Analy zers and Systems 90003752(1) [AK-Commands] 10/98 AK 2 - 21 SINT – Control command "Integrator" Starting this command the FU will ac tivate the internal integrator s. The previous calculated and stored integral averages will be set to zero.
2 - 22 AK 90003752(3) [AK-Commands] 11/03 SLCH – Control command "Linearization check" Starting this command the analyzers in a syst em or the single analyzer will switch on the gas tubing to a gas distribution and a linear ization procedure will run.
II) V24/RS232/485 In te r fa ce - Single Analy zers and Systems 90003752(1) [AK-Commands] 10/98 AK 2 - 23 SLIN – Control command "Linearization" Starting this command the analyzers in a system or the single analyzer will switch on the gas tubing to a gas distribution.
2 - 24 AK 90003752(3) [AK-Commands] 11/03 SLST – Control command "Set linearization step" Starting this command the gas distribution will switch on the named distribution step. The device will work like described for the co mmands "SLIN" or "SLCH" depending on the current procedure.
II) V24/RS232/485 In te r fa ce - Single Analy zers and Systems 90003752(1) [AK-Commands] 10/98 AK 2 - 25 SMAN – Control command "Operation mode MANUAL" With this command the FU will change to the operation mode "Manual". Then it will only be possible to start functions fr om an operating unit integrated in the FU.
2 - 26 AK 90003752(3) [AK-Commands] 11/03 SMGA – Control command "Samplegas" Starting this command the analyzers in a syst em or the single analyzer will switch on the sample gas valve and the pumps necessary for the samplegas transport. If continuous line recorders will be available, the paper transport will also be switched on.
II) V24/RS232/485 In te r fa ce - Single Analy zers and Systems 90003752(1) [AK-Commands] 10/98 AK 2 - 27 SNAB – Control command "Zerogas calibration" Starting this command the analyzers in a system or the single analyzer will start a zerogas calibration.
2 - 28 AK 90003752(3) [AK-Commands] 11/03 SNGA – Control command "Zerogas" Starting this command the analyzers in a syst em or the single analyzer will switch on the zerogas valve and the pumps necessary for t he zerogas transport. This function will only check the zero point.
II) V24/RS232/485 In te r fa ce - Single Analy zers and Systems 90003752(1) [AK-Commands] 10/98 AK 2 - 29 SPAB – Control command "Spangas calibration" Starting this command the analyze rs in a system or the single analyzer will start a spangas calibration.
2 - 30 AK 90003752(3) [AK-Commands] 11/03 SPAU – Control command "Pause" With this command the FU will be set to a defi ned status of interruption. This command will only be accepted, if the FU is already in the stand-by mode. The "SPAU" command will switch off the operation modes (e.
II) V24/RS232/485 In te r fa ce - Single Analy zers and Systems 90003752(1) [AK-Commands] 10/98 AK 2 - 31 SQEF – Control command "Cross interference" Starting this command the CO analyzer will measure wet C0 2 . It will be produced by streaming three percent C0 2 through water bottles at 20 degrees Celsius.
2 - 32 AK 90003752(3) [AK-Commands] 11/03 SREM – Control command "Remote" With this command the FU will change to t he computing operation mode. Then, the function start will only be possible by the TB CC. This operation mode may only be set, if the service switch of the FU is in the position "Remote Enable".
II) V24/RS232/485 In te r fa ce - Single Analy zers and Systems 90003752(1) [AK-Commands] 10/98 AK 2 - 33 SRES – Control command "Reset" With this command the FU will get a software reset. This command has the same effect to the FU like the switching off and on of the power supply.
2 - 34 AK 90003752(3) [AK-Commands] 11/03 SRON – Control command "Delay modus ON" SROF – Control command "Delay modus OFF" Starting this command the analyzers in a system or th.
II) V24/RS232/485 In te r fa ce - Single Analy zers and Systems 90003752(1) [AK-Commands] 10/98 AK 2 - 35 SSPL – Control command "Purging" Starting this command the analyzers in a system or the single analyzer will switch on the purge gas valve and the pumps necessary for the purge gas transport.
2 - 36 AK 90003752(3) [AK-Commands] 11/03 ST9O – Control command "Set t 90 time step" With this command the analyzer will use the t 90 time according to the current step. The abbreviation "S" means fast time, "M" means m edium time and "L" means slow time.
II) V24/RS232/485 In te r fa ce - Single Analy zers and Systems 90003752(1) [AK-Commands] 10/98 AK 2 - 37 STBY – Control command "Stand-by" With the command "Stand-by" the FU will be se t to a defined status of interruption. Running functions like measuring or purging will be canceled.
2 - 38 AK 90003752(3) [AK-Commands] 11/03.
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 39 4. Description of all Read Commands AAEG – Read command "Deviation to spangas".
2 - 40 AK 90003752(1) [AK-Commands] 10/98 AALI – Read command "Deviations of the last linearization check with spangas" To this read command the analyzers in a syst em or the single analyz.
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 41 AANG – Read command "Deviation to zerogas" To this read command the analyzers .
2 - 42 AK 90003752(1) [AK-Commands] 10/98 ABST – Read command "Counter of operating hours" To this read command the FU will s end to the TBCC the following data: ∗ The operating hours until now fo r the roots fan, the turbo compressor, the sampling pumps etc.
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 43 ADRU – Read command "Pressure" To this read command the analyzers in a system .
2 - 44 AK 90003752(1) [AK-Commands] 10/98 ADUF – Read command "Flow" To this read command the analyzers in a syst em or the single anal yzer will send to the TBCC the following data for the called channel (device) and subchannel (flow measurement): ∗ The signal in liter per time unit.
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 45 AEMB – Read command "Selected range" To this read command the analyzers in a s.
2 - 46 AK 90003752(1) [AK-Commands] 10/98 AFDA – Read command "Function length" To this read command the FU will send to the TBCC the following data for the called channel (device): ∗ The function or procedure times of the function determined in "CODE".
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 47 AGID – Read command "Device identification" To this read command the gas analyzer will send to the TBCC a text string consisting of several data.
2 - 48 AK 90003752(1) [AK-Commands] 10/98 AGRW – Read command "Limits" To this read command the analyzers in a syst em or the single analyzer will send to the TBCC the following data for the called channel (device): ∗ The corresponding limits, e.
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 49 AIKG – Read command "Concentration integral value; all" To this read command the FU will s end to the TBCC the following data: ∗ The corrected average signal valid at that mo ment (e.
2 - 50 AK 90003752(1) [AK-Commands] 10/98 Response AIKG 0 123400 12340 1234 123.4 12.34 -1.23 # Channel 7 no signal, invalid or range overflow/underflow Channel 6 negative value 1 digit before/ 2 digits after d e c i m a l p o i n t . Channel 5 positive value 2 digit before / 2 digits after d e c i m a l p o i n t .
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 51 AIKO – Read command "Concentration integral value" To this read command the FU will s end to the TBCC the following data: ∗ The corrected average signal valid at that mo ment (e.
2 - 52 AK 90003752(1) [AK-Commands] 10/98 Response AIKO 0 123400 12340 1234 123.4 12.34 -1.23 # Channel 7 no signal, invalid or range overflow/underflow Channel 6 negative value 1 digit before/ 2 digits after d e c i m a l p o i n t . Channel 5 positive value 2 digit before / 2 digits after d e c i m a l p o i n t .
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 53 AKAK – Read command "Calibration gas concentration" To this read command the a.
2 - 54 AK 90003752(1) [AK-Commands] 10/98 AKAL – Read command "Stored calibration corrections" To this read command the analyzers in a syst em or the single analyzer will send to the TB CC the f ol lo win g data for the called channel (device): ∗ The corrections in ppm determined and stor ed during the last calibration.
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 55 Response AKAL 0 M1 aaa kk AAA KK ..... Mn xxx ff XXX FF Deviation of the final point value.
2 - 56 AK 90003752(1) [AK-Commands] 10/98 AKEN – Read command "Device tag" To this read command the FU will send to the TBC C the tag for the called channel (device). Read command AKEN K0 AKEN Kn Read of channel n Code Response AKEN 0 XXX.
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 57 AKFG – Read command "Configuration of the system" To this read command the sys.
2 - 58 AK 90003752(1) [AK-Commands] 10/98 AKON – Read command "Signal" (measured concentration value) To this read command the analyzers in a syst em or the single analyzer will send to the TBCC th e following d a ta : ∗ The corrected signal (concentration value) valid at that moment.
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 59 Response AKON 0 123400 12340 1234 123.4 12.34 -1.23 # Channel 7 no signal, invalid or range o v e r f l o w / u n d e r f l o w Channel 6 negative value 1 digit before/ 2 digits after d e c i m a l p o i n t .
2 - 60 AK 90003752(1) [AK-Commands] 10/98 AKOW – Read command "Correction for zerogas calibration and gradient" To this read command each analyzer in a syst em or the single analyzer will send to the TBCC th e following d a ta : ∗ The correction of the last zero calibrati on and the gradient of the calibration curve.
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 61 ALCH – Read command "Deviations of the last linearization check" To this read .
2 - 62 AK 90003752(1) [AK-Commands] 10/98 Only for MLT analyzers: ALIK – Read command "Output of the linearization curve" To this read command the x/y values of the linearization curve will be sent. With this values can be determined the desired segment of the linearization curve and the interval between the function values.
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 63 ALIN – Read command "Linearization values" (X/Y = Setpoint / Raw value) To thi.
2 - 64 AK 90003752(1) [AK-Commands] 10/98 ALKO – Read command "Polynomial coefficients of the linearization curve" The coefficients of the linear ization polynomial calculated by the analyzer linearization will be transferred. These coefficients will be enabled using the polynomial method to linearize.
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 65 ALST – Read command "Linearization steps" To this read command the gas distrib.
2 - 66 AK 90003752(1) [AK-Commands] 10/98 AM90 – Read command "Actual response time (t 90 )" To this read command the analyzer will send the t 90 time in seconds that is enabled to calculate the concentration for the called channel at the moment.
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 67 AMBA – Read command "Begin of range" To this read command the analyzers in a syst em or the single analyzer will send to the TB CC the f ol lo win g data for the called channel (device): ∗ The begin of range values in ppm.
2 - 68 AK 90003752(1) [AK-Commands] 10/98 AMBE – Read command "End of range" To this read command the analyzers in a syst em or the single analyzer will send to the TB CC the f ol lo win g data for the called channel (device): ∗ The end of range values in ppm.
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 69 AMBU – Read command "Switching values for autoranging" To this read command th.
2 - 70 AK 90003752(1) [AK-Commands] 10/98 AMDR – Read command "Manual adjusted pressure" To this read command the gas analyzer will s end the value adjusted for the parameter. This value will be useful, if no pressure m easurement will be installed in the analyzer.
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 71 AQEF – Read command "Cross interference" To this read command the CO analyzer or the system will send to the TB CC : ∗ The concentration value in ppm determined and stored in the analyzer.
2 - 72 AK 90003752(1) [AK-Commands] 10/98 ASOL – Read command "Setpoint value with limits" To this read command the FU will send to the TBC C the f oll ow in g data for the called channel (FU) and subchannel (e.g. heating): ∗ The adjusted setpoints with devia tion limits for error reports.
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 73 ASTA – Read command "General status of the system" To this read command the FU will send to the TB CC: ∗ All channels of the FU with any error in their status at that moment.
2 - 74 AK 90003752(1) [AK-Commands] 10/98 ASTF – Read command "Error status" To this read command the FU will send to the TB CC: ∗ All error existing at that mo ment in the called channel (FU). The description of the error characterization is specific for each device.
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 75 TTypical meanings of errors for certain devices: NDIR/NDUV Analyzers No. 1 = Flow error No. 2 = Chopper failure No. 3 = Thermostat failure No.
2 - 76 AK 90003752(1) [AK-Commands] 10/98 ASTZ – Read command "Status" To this read command the FU will send to the TBC C the following data for the called channel (FU): ∗ The device status at that moment ∗ Running procedures. The status will be described by the code used for the activation of the function.
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 77 Response ASTZ 0 KV SREM CODEn K1 SREM CODEn K2 # Kn SREM CODEn SMAN SMAN SMAN Status code .
2 - 78 AK 90003752(1) [AK-Commands] 10/98 ASYZ – Read command "System time" To this read command the FU will send to the TBC C the following data for the called channel (device): ∗ The current system time (calendar time).
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 79 AT9O – Read command "T 90 time" (response time) To this read command the analyzers in a syst em or the single analyzer will send to the TB CC the f ol lo win g data for the called channel (device): ∗ The t 90 time steps.
2 - 80 AK 90003752(1) [AK-Commands] 10/98 ATEM Read command "Temperature" To this read command the analyzers in a syst em or the single analyzer will send to the TB CC the f ol lo win g data for the called c hannel (device) and subchannel (temperature measurement): ∗ The signal in Kelvin.
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 81 ATOL – Read command "Stability tolerances" To this read command the analyzers .
2 - 82 AK 90003752(1) [AK-Commands] 10/98 AUKA – Read command "Uncorrected analog value" To this read command the called analyzer in a system or the singl e analyzer will send to the TB CC the f ol lo wi ng data: ∗ The uncorrected analog output value in Volt and the corresponding range.
II) V24/RS232/485 I n t e r f a c e - Single Analyzers and Sy stems 90003752(1) [AK-Commands] 10/98 AK 2 - 83 AVEZ – Read command "Delay and synchronization time" To this read command the .
2 - 84 AK 90003752(1) [AK-Commands] 10/98 AZEI – Read command "Times" To this read command the FU will send to the TBC C the f oll ow in g data for the called channel (FU): ∗ The times used to start a function or procedure, e.g. times for the automatic start of a calibration.
II) V24/RS232/485 I nt e rf ac e - Single Analyzers and Sy stems 5. Description of all Write Commands EFDA – Write command "Function length" With this write command the FU will get the function length of the function "SXXX" in seconds for the called channel (device), e.
EFDA 0 Error status Code 2 - 86 AK 90003752(1) [AK-Commands] 10/98.
II) V24/RS232/485 I nt e rf ac e - Single Analyzers and Sy stems EGRW – Write command "Limit" With this write command the analyzers in a system or the single analyzer will get the required limits for the called channel (device), e.g. maximum deviation for calibration.
EKAK – Write command "Calibration gas concentration" With this write command the analyzers in a system or the single analyzer will get the spangas values for each range.
II) V24/RS232/485 I nt e rf ac e - Single Analyzers and Sy stems EKEN – Write command "Device tag" With this write command the FU will get a tag to store in the FU memory.
EKFG – Write command "Configuration of the system" With this write command the FU will get t he channels (analyzers) sending the current signals and their sequence. Furthermore the FU will get the channels that should be called with the total channel command "K0" or "KV Ln" , i.
II) V24/RS232/485 I nt e rf ac e - Single Analyzers and Sy stems ELIN – Write command "Linearization values (X/Y)" With this write command the analyzers in a system or the single analyzer will get the linearization values for the calculation of gas concentration for the called channel (device) and subchannel (range).
ELKO – Write command "Polynomial coefficients of the linearization curve" The coefficients of a linearization polynom ial will be transferred to the analyzer. These values will then be enabled to calculate the gas concentration using the polynomial method for linearization.
II) V24/RS232/485 I nt e rf ac e - Single Analyzers and Sy stems ELST – Write command "Linearization steps" With this write command the device will get t he numbers of the distribution steps and each division in percent of the gas distribution us ed for linearization.
EMBA – Write command "Begin of range" With this write command the analyzers in a system or the singl e analyzer will get each begin of range of the total r ange in ppm. The analog output signal will be referred to these values for instance.
II) V24/RS232/485 I nt e rf ac e - Single Analyzers and Sy stems EMBE – Write command "End of range" With this write command the analyzers in a system or the single analyzer will get each end of range of the total range in ppm. The analog output signal will be referred to these values for instance.
EMBU – Write command "Switch levels for autoranging" With this write command the analyzers in a system or the single analyzer will get for the called channel (device): ∗ The required values in ppm to switch from one range to another with autoranging.
II) V24/RS232/485 I nt e rf ac e - Single Analyzers and Sy stems EMDR – Write command "Manual adjusted pressure" With this write command the analyzer will get a pressure value for the called channel. This value will be used as pressure co rrection, if no pressure meas urement is installed in the device.
ESOL – Write command "Setpoint value with limits" With this write command the FU will get the required setpoi nt values with acceptable deviations for the called channel (device) and subchannel (e.g. heating). If these limits will be exceeded during the operation, it will caus e a changing of the error status byte.
II) V24/RS232/485 I nt e rf ac e - Single Analyzers and Sy stems ESYZ – Write command "System time" With this write command the FU will get the syst em time (calendar time) that has to be adjusted for the called channel (device).
ET9O – Write command "T 90 time" (response time) With this write command the analyzers in a system or the single analyzer will get the t 90 time steps in seconds that have to be adjusted for the called channel (device).
II) V24/RS232/485 I nt e rf ac e - Single Analyzers and Sy stems ETOL – Write command "Stability tolerances" With this write command the analyzers in a system, the single analyzer or the front-end computer will get the r equired tolerances for functions running stability controlled.
EVEZ – Write command "Delay and synchronization time" With this write command the analyzers in a system or the single analyzer will get the delay time and the synchronization ti me for the called channel (device). The delay time will be used for integrators started by "SINT" or for the delayed record of valid signals.
II) V24/RS232/485 I nt e rf ac e - Single Analyzers and Sy stems EZEI – Write command "Times" With this write command the FU will get the ti mes that have to be adjusted in the called channel (device) for the automat ic start of functions or procedures (e.
Write command EZEI Kn CODE JJMMTT hhmmss T-0 Function length Start time of the function Start day of the function Function that shall be started Addressed channel Code Response EZEI 0 Error status Cod.
Supplement 1. Overview about working AK commands in NGA devices Code Function MLT local V3.2 MLT/CU V3.2 Other AM V3.2 AAEG Deviation to span gas √ √ AALI Linearization check results √ √ AANG .
Code Function MLT local V3.2 MLT/CU V3.2 Other AM V3.2 ELKO Linearization polynomial coefficients √ √ √ ELST Linearization steps √ √ EMBA Begin of ranges √ √ √ EMBE End of ranges √ .
Supplement 90003752(1) [AK-Commands] 10/98 AK Supplement - 3.
2. AK Service Commands ASVC K0 S599 ExactNode Name Reading of LON variables of a network node Description: This command is an enlarged alternative to the S600 command. It may use the variables of all network nodes, even if they will not be analyz er modules.
Supplement S600: Access to LON network variables Access to network variables of an analyzer module. Notes: ☞ If a variable will contain several values (array) , you can access to these values by adding the corresponding number directly to the name of the variable.
ASVC Kn S615 b Reading of the current data of a DIO board Description: The current status of the named DIO board will be read. Syntax: b: Board number (1, 2, 3 ,4; not SLOT-ID); for b = 0 the data of all available DIO's will be sent Response: ASVC 0 IIIIIIII OOOOOOOO OOOOOOOO OOOOOOOO RLLL I1.
Supplement SSVC Kn S621 a Loading/Saving of device specific parameters Description: With this command you can load/save t he device specific parameters. This will be possible via the serial interface and from /to the in ternal FLASH memory (if on ACU available!).
ASVC Kn S630 Output of the LON variable names Description: All LON variables that are available in an analyzer module will be sent out with their names. If a variable will contain several values (arra y), it will be marked by an appendix in brackets. In these brackets you will find the numbers to access to the array values of the variable.
Supplement ASVC Kn S640 a Output of values of the MLT concentration formula Concentration formula: Conce = FacP * FacT * FacSpan * Lin{(Raw Avg - OffP - OffT - OffX) * RGain * Gain} Meaning of the var.
NGA 2000 ML T AK Protocol Instruction Manual 90003752 1 1/2003 © Emerson Process Management GmbH & Co. OHG 2007 WORLD HEADQUARTERS ROSEMOUNT ANAL YTICAL EUROPE Emerson Process Management GmbH & Co. OHG Industriestrasse 1 63594 Hasselroth Germany T 49 6055 884 0 F 49 6055 884209 Emerson Process Management Rosemount Analytical Inc.
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