
Function code: 03H Modbus response (measurement parameter)
Logic
address
Item
Number
of Byte
Informati
on type
Description of
data transmission
Default value
Note
0031H
Number of
measurement
channels
2 USHORT
PC-3110-RS
only has one
channel
1
0032H
Sign byte
6 CHAR
pH
pH
ASCII
code
ORP(mV)
0035H
pH/ORP
measurement
4 FLOAT
pH/ORP
measurement
Data
affected by
sign byte
0037H
Temperature
measurement
4 FLOAT
Temperature
measurement
0039H-
0050H
Factory reserved
Function code: 01H,05H,0FH Modbus response (dispersion parameter)
Logic
address
Item BIT Description Default
value
Note
0070H
LO Alarm
1
Contact on
0 (Contact off)
0071H
Hi Alarm
1
Contact on
0 (Contact off)
0072H
MA too high
1
Contact on
0 (Contact off)
0073H
MA too low
1
Contact on
0 (Contact off)
0074H
Exceed temp. range
1
Contact on
0 (Contact off)
0075H
Exceed pH/ORP range
1
Contact on
0 (Contact off)
0076H
RLY1 Action *
1
Contact on
0 (Contact off)
0077H
RLY2 Action*
1
Contact on
0 (Contact off)
0078H
Clean Action*
1
Contact on
0 (Contact off)
0079H Measurement
status 1
Contact on
1 (Contact on)
0: Hold
1: Measurement
007AH-
0090H
Factory reserved
56
Содержание PC-3110-RS
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