The TM173OBM22R controller is optimized for HVAC and pumping solutions with 22 IO, Modbus.
Product ModelTM173OBM22R
Product ID34261
Stock on Request
Last updated: 8/29/2026
Key Features
1
FeatureOptimized for HVAC and pumping solutions
2
Feature22 IO for enhanced functionality
3
FeatureModbus compatibility for seamless integration
4
FeatureCompact dimensions for space-efficient installation
5
FeatureDesigned with environmental sustainability in mind
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Range of Product
Modicon M171/M172/M173
Product or Component Type
Programmable controllers
Product Specific Application
HVAC and pumping solution
Variant
Programmable
Total inputs/outputs
22
Discrete input number
6
Discrete output number
3 relay outputs SPST with same common2 relay outputs SPST with independent common
Discrete output current
5 A relay SPST
Analogue input number
6 configurable by pair1 configurable
Analogue output number
1 voltage/current 0...10 V or 4...20 mA3 voltage 0...10 V or PWM (10Hz...2 kHz)
Number of port
1 CAN port - screw terminal block1 USB type C2 RS485 - screw terminal block Modbus serial link)1 display port - TTL connector1 communication module port
Input/output number
6 digital input5 digital output7 analog input4 analog output
Discrete input logic
Sink or source (positive/negative)
Contacts usage
Volt-free contacts
Discrete input voltage
24 V AC/DC
Discrete input current
2.5 mA
input impedance
20 kOhm
Analogue input type
NTC 103AT-2 Beta 3435 temperature probe - 50...100 °C 0.1 °C 10 kOhmPt 1000 temperature probe - 50...400 °C 0.1 °C 2 kOhm voltage 0...10 V 0.001 V > 10 kOhm voltage 0...5 V 0.001 V 110 kOhm current 4...20 mA 13 bits 100 Ohm direct input > 10 kOhm
Measurement accuracy
NTC NK103 Beta 3977 - 40...+110 °C +/- 1 °C NTC NK103 Beta 3977 110...137 °C +/- 1.9 °C NTC 103AT-2 Beta 3435 - 50...110 °C +/- 1 °C PTC - 55...155 °C +/- 1.1 °C Pt 1000 - 100...-50 °C +/- 5 °C Pt 1000 - 50...100 °C +/- 1 °C Pt 1000 100...400 °C +/- 5 °C0...20 mA 0...4 mA +/- 2 % of full scale +/- 1 digit0...20 mA 4...20 mA +/- 1 % of full scale +/- 1 digit4...20 mA +/- 1 % of full scale +/- 1 digit0...10 V +/- 1 % of full scale +/- 1 digit0...5 V +/- 1 % of full scale +/- 1 digitHOhm 0...1500 hOhm +/- 8.5 hOhmDaOhm 0...300 daOhm +/- 2.5 daOhm
Sensor power supply
5 V DC 50 mA supplied by the controller24 V DC 125 mA supplied by the controller
