inveo NANO TEMP, User Manual

Page: 15 / 22

6.8 Managing the module using MODBUS TCP
MODBUS TCP protocol is listening on port 502.
The module supports following functions of MODBUS protocol:
- 0x01 Read Coils,
- 0x03 Read Holding Register,
- 0x05 Write Single Coil,
- 0x06 Write Single Register,
- 0x0F Write Multiple Coils,
- 0x10 Write Multiple Registers.
The registers description is shown in tables below.
MODBUS TCP - Coils
Register Name Mode:
R-read
W-write
Description
1000 On1 R Over Temperature
1002 SensError R Sensor error (0-ok, 1-error)
MODBUS TCP - Holding Registers
Register Name Mode:
R- read
W-write
Description
4000 ThermostatL R/W Thermostat low setting
4001 ThermostatH R/W Thermostat high setting
4002 Alarm mode R/W 1- OFF (disabled)
2- Lower (lower than)
3- Higher (higher than)
4-
Lower & Higher
(lower and higher)
4004 Temperature x10 R Temperature x 10 (ie. 10,5st.C to 105)
4005 Temperature Int R Integral part of temperature
4006 Temperature Frac R Decimal part of temperature
4007 MAC 0 R MAC Address
4008 MAC 1 R MAC Address
4009 MAC 2 R MAC Address
4010 MAC 3 R MAC Address
4011 MAC 4 R MAC Address
4012 MAC 5 R MAC Address
4013 StoreConfig W Entering 144 will save to configuration to
EEPROM
User manuald NANO TEMP Page 15 of 21