Table C-3. Write Coils For 42I - Thermo Scientific 42i Instruction Manual

Thermo Fisher Scientific
Register Variable
Number
121 & 122 EXT ALARMS
* The analog inputs 1–8 will not show if the Ouput Conc Cal option is set to YES in the Instrument
Configuration screen.
**
BKG and COEF items are displayed only if Ouput Conc Cal option is set to YES in the Instrument
Configuration screen.
IMPORTANT NOTE The addresses in the following tables are Protocol
Data Unit (PDU) addresses. Verify the coil number on your MODBUS
master to ensure that it matches the coil number on the instrument.
Note Writing 1 to the coil number shown in the following table will
initiate the "action triggered" listed in the table. This state must be held for
at least 1 second to ensure the instrument detects the change and triggers
the appropriate action.
Note The coils within each coil group in the following table are mutually
exclusive and will not be triggered if there is conflict. Before you assert (1)
one coil in a group, make sure the other coils in the group are de-asserted
(0). ▲
Table C–3. Write Coils for 42 i
Coil Number Action Triggered
100 NOT USED
101 ZERO MODE
102 SPAN MODE
103 NO MODE
104 NOX MODE
105 NOT USED
106 NOT USED
107 SET BACKGROUND
108 CAL TO LO SPAN
109 AOUTS TO ZERO
110 AOUTS TO FS
111 CAL TO HI SPAN
112 NOT USED
113 NOT USED
▲
Coil Group
Zero/Span Mode
Zero/Span Mode
Measure Mode
Measure Mode
Analog Out Test
Analog Out Test
MODBUS Protocol
MODBUS Parameters Supported
▲
Zero/Span Option
Zero/Span Option
I/O Expansion Board Option
I/O Expansion Board Option
Model 42i Instruction Manual C-13