MODBUS Protocol
MODBUS Parameters Supported
Thermo Fisher Scientific
Model 5030
i
SHARP Instruction Manual
C-9
Coil Number
Status
7
BETA DETECTOR ALARMS
8 NEPHELOMETER
ALARMS
9 RH/TEMP
ALARMS
10 PRES/VAC
ALARMS
11 FLOW
ALARMS
12 NOT
USED
13 NOT
USED
14 NOT
USED
15
EXT ALARM 1
16
EXT ALARM 2
17
EXT ALARM 3
IMPORTANT NOTE
The addresses in the following tables are Protocol
Data Unit (PDU) addresses. Verify the register number on your
MODBUS master to ensure that it matches the register number on the
instrument.
▲
Note
For additional information on how to read registers and interpret the
data, refer to the “
(0x03/0x04) Read Holding Registers/Read Input
Registers
” section in this appendix.
▲
Table C–2.
Read Registers for 5030
i
Register Number
Variable
0 INVALID
1 & 2
PMa
3 & 4
NOT USED
5 & 6
BARO PRES
7 & 8
VACUUM
9 & 10
NOT USED
11 & 12
FLOW PRES
13 & 14
NOT USED
15 & 16
AMB RH
17 & 18
SAMP RH
19 & 20
NOT USED
21 & 22
AMB TEMP
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