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Modbus RTU communication 63 Addressable 9600-19200-38400-115200Kbps Baudrate Communication Speed ​​Selection 24V AC / DC Supply Voltage
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We Offer Comprehensive Building Automation Technology Solutions



  • Expansion Module for Building Automation Systems
  • Built-in 18 Inputs/Outputs
  • 4 Special Inputs (Voltage, resistance, dry contact)
  • 4 Digital Inputs (Dry contact)
  • 3 Analog Outpus (heating, cooling actuators and fan speed)
  • 2 Triac Outputs (24V 0.5A AC) (Heating and cooling, actuators)
  • 3 Digital Outputs (Fan speed)
  • 1 Digital Output (16A)(Electric heater)
  • 1 Digital Output (16A)(Cooling actuator)
  • External 24VAC 1A Output
  • Room thermostat with modbus communication (Optionally)
  • User Friendly Configurable
  • Status LED for all inputs, outputs and communication
  • RS485 Connection with Modbus
  • Slave Id and Baudrate Configuration with DIPswitch
  • Pre-loaded universal application
  • Support 2-pipe or 4-pipe systems


Power Supply
Nominal Voltage
230V AC 50/60Hz
Special Inputs
0(2)-10V DC
NTC 10K3A1
NTC 10K4A1
Voltage-free Contact
1-10k Potentiometer (Only SI1 input)
Analog Outputs 0(2)-10VDC, 20mA max
Digital Outputs 230V 5A AC, 30V 5A DC Switching Capacity
Triac Outputs 24V AC 0.5A
External Output 24V AC 1A
RS485 Connection Modbus RTU Slave
Up to 128 devices on the bus
Baudrate 9600 to 115200 Kbps
Modbus RTU for connecting to a higher-level system
Ambient Temp. Range
Non-operating Range
Humidity Range
0…50 °C (32…122 °F)
-25…+75 °C (-13…+167 °F)
%5…95 RH, non-condensing
106 x 124 x 59 (Including terminals)
For 35mm DIN rail mounting
Degree For Protection IP20
Connections Plug-in Terminals 1 x 2.5mm²

Units in box: 1

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