MODBUS Communication
8
TI 12A01F01-62EN
2.2 INPUT_REGISTER: Input Register
MODBUS address are assigned to parameters of the converter status including AO and HART.
Address from 1000 to 1999 are for the measured value obtained from sensors.
Address Name Comment
0 to 999 Converter Status on Converter, AO, HART. See 2.2.1
through 2.2.5.
1000 to 1063 Sensor 1-1 measured value Input Register for each sensor connection
number. For IR of each sensor type, see
2.2.6.
1100 to 1163 Sensor 1-2 measured value
1200 to 1263 Sensor 1-3 measured value
1300 to 1363 Sensor 1-4 measured value
1400 to 1463 Sensor 2-1 measured value
1500 to 1563 Sensor 2-2 measured value
1600 to 1663 Sensor 2-3 measured value
1700 to 1763 Sensor 2-4 measured value
52017 to 52056 Reserved
Sensor
1-1
Sensor
1-2
Sensor
2-3
Sensor
2-4
PH
SC
ISC
DO
Image of sensor connection
MODBUS address are assigned to designated sensor connection number to input sensor
measured value. Other address, which are not assigned to the sensor connection, shows “0”.
<Example>
When:
Sensor1: PH sensor module, Sensor2: SC sensor module
Sensor connection number 1-1 is PH, Sensor connection number 2-1 is SC.
This time,
Modbus address 1000 to 1023 are assigned to input of measured value from Sensor1 PH sensor
module.
Modbus address 1400 to 1425 are assigned to input of measured value from Sensor2 SC sensor
module.
“0” is read on other address : 1024-1063, 1100-1163, 1200-1263, 1300-1363, 1426-1463, 1500-
1563, 1700-1763.
Apr. 19, 2019-00
To Next Page
Loading...
