Trebor Q-Series Di Water Heater - Manual (Page 21)

Q-SERIES DI HEATER OPERATION / MAINTENANCE MANUAL PAGE 21
Name Address Type Data Bytes Perm Value
Alarm Status 003075 Coil Bool 1 R 0-1
Alarm Pressure 003081 Coil Bool 1 R 0-1
Alarm Pressure Status 400641 Reg Short 2 R 1-4
Alarm Liquid Leak 003082 Coil Bool 1 R 0-1
Alarm Liquid Level 003084 Coil Bool 1 R 0-1
Alarm Liquid Level Status 400644 Reg Short 2 R 1-4
Alarm Over Temp 003083 Coil Bool 1 R 0-1
Alarm Thermocouple 003085 Coil Bool 1 R 0-1
Flow Range 003111 Coil Bool 1 RW 0-1
Percent Power 400671 Reg Short 2 R 0-100(%)
Process Temperature 400778 Reg Short 2 R 0-120(°C)
Remote heater Power 003112 Coil Bool 1 RW 0-1
Remote Mode 003113 Coil Bool 1 R 0-1
Remote Set Point 400786 Reg Short 2 RW 10-95(°C)
Table 5-2: Modbus Address Mapping
For example:
To enable the heating of water, a write request must be sent to the
address for the
“Remote Heater Power” coil with a value of 1.
To disable the heating of water, a write request must be sent to the
address for the “Remote Heater Power” coil with a value of 0.
To monitor the temperature set point, a read request must be sent to
the address for the “Remote Set Point” register.
To adjust the temperature set point, a write request must be sent to
the address for the “Remote Set Point” register with a value between
15 and 95.