Download Hamilton Electronics EPHUM011 User's Manual

pH ARC Sensors Modbus RTU Programmer’
s Manual (EPHUM011)
Modbus address: 1568
Length: 8
Type: 16
Command: Info user
Parameter: Text
Format:
Character
Hello World
Value:
Figure 2.9.3.2: Example to write 16 ASCII characters to register 1568 with operator A or S.
Write
Modbus address: 1568
Length: 8
Command: Info user
Parameter: Text
Format:
Character
Hello World
Value:
Figure 2.9.3.3: Example to read the register 1568 (written in figure 2.9.1.6).
Read
Type: 3
2.10 System Commands
2.10.1 Recall Sensor’
s Factory Settings
Using register 8192 you can recall the sensor manufacturer values (interfaces, calibration data and
passwords), except the SIP and CIP data which remain unchanged. By sending the recall value
“
732255”
, all configuration values will be set to default.
Start
Number of
Reg1 / Reg2
register
registers
8192
2
Recall by value 732255
Figure 2.10.1.1: Definition of register 8192.
Modbus
function code
16
Modbus address: 8192
Command: Recall
Parameter: Recall
Format:
Decimal
732255
Value:
Figure 2.10.1.2: Example to write the restore command.
Length: 2
3
Abbreviations
AO
CP
ECS
PMC
SMC
624300/01
Analog Output Interface
Calibration Point
Electrochemical Sensor Interface
Primary Measurement Channel
Secondary Measurement Channel
page 66 / 67
Read
access
none
Type: 16
Write
access
S
Write