MODBUS Protocol
MODBUS Parameters Supported
C-12
Model 48
i
Instruction Manual
Thermo Fisher Scientific
Table C–3.
Write Coils for 48
i
Coil Number
Action
100 NONE
101 ZERO
MODE
102 SPAN
MODE
103 SET
BACKGROUND
104
CAL TO LOW SPAN
105
AOUTS TO ZERO
106
AOUTS TO FS
107
CAL TO HIGH SPAN
108 NOT
USED
109 NOT
USED
110 NOT
USED
111 ZERO/PURGE
CAL
112 SPAN/PURGE
CAL
113 ZERO/SPAN/PURGE
114
EXT ALARM 1
115
EXT ALARM 2
116
EXT ALARM 3
117 PURGE
MODE
In addition to the coils listed in the Write Coils table, coils in the Read
Coils table can also be read.
To read a write coil, issue a read coil command for that coil. For example,
to view the state of write coil 101, issue a “read coil 101”.
Reading a Write Coil
