Model 2000 Flow Computer Instruction Manual
APPENDIX 3 GAS CHROMATOGRAPHS SUPPORTED
Model 2000 issue 21 Page No
84
APPENDIX 3h Instromet ENCAL 3000 Chromatograph.
The Model 2000 will read the following information from the Encal 3000 using modbus function 03.
Address Function Meanings Alarms
6989 Serial Number
6990 Number or runs
0 = Initialising No alarm
1 = Flushing No alarm
2 = Running No alarm
3 = Stabilising No alarm
4 = Ready / Idle No alarm
5 = Error Nacc State alarm
6 = Recoverable error Delayed Nacc State alarm
7 = GC Broken Nacc State alarm
8 = GC Not Ready Delayed Nacc State alarm
9 = Waiting Nacc State alarm
6991 Instrument state
10 = Reconditioning Nacc State alarm
0 = Idle Nacc State alarm
1 = Running Manual Nacc State alarm
2 = Running Sequence No alarm
3 = Running Calibration No alarm
4 = Running Verification No alarm
5 = Recalculating Nacc State alarm
6992 Current sequence state
6 = Flushing No alarm
0 = Analysis No alarm
1 = Calibration No alarm
2 = Blank Nacc State alarm
6993 Current sample type
3 = Verification Nacc State alarm
6994 Current running time
0 = OK No alarm 6995 Calibration alarm
1 = Error Acc Cal alarm
6996 Current stream position
6997 Current stream analysing Stream Number. Stream 0 and 6 are maintenance.
6998 Application stream position
0 = Not Protected No alarm
3103 Security Register
1 = Protected Acc Security Alarm
Registers 6989 - 6994 and 6996 - 6998 are general information registers. Register 6995 is used to indicate a calibration
alarm from the Encal 3000, and register 3103 is used to indicate a security alarm from the Encal 3000.
The order of the variables in the modbus listings of the Encal 3000 must match the order of the components found in the
“Encal Component Codes” tab of the Model 2000 Configuration Software. This allows for quick and easy changing of one or
many components.
Depending on the stream number read at location 6997, the Encal will read the corresponding streams gas data. Stream 1’s
data can be found at addresses 7000 - 7024, stream 2 from 7200 - 7224, stream 3 from 7300 - 7324 up to stream 6 at 7600 -
7624.
7#00 Component Number 1 Default N2
7#01 Component Number 2 Default C1
7#02 Component Number 3 Default CO2
7#03 Component Number 4 Default C2
7#04 Component Number 5 Default H2S
7#05 Component Number 6 Default CO
7#06 Component Number 7 Default C3
7#07 Component Number 8 Default iC4
7#08 Component Number 9 Default nC4
7#09 Component Number 10 Default neoC5
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