High-performance HVAC control controller with 28 IO ports, designed for efficient energy management and easy deployment.
Product ModelTM172PBG28R
Product ID34084
Stock on Request
Last updated: 8/29/2026
Key Features
1
Efficient Energy ManagementAdvanced algorithms for greater energy efficiency in HVAC control systems.
2
Easy DeploymentReady to connect device with Ethernet and Modbus protocols for seamless integration.
3
Sustainable DesignCompliant with RoHS/REACh regulations and designed for environmental sustainability.
4
Upgradeable ComponentsUpgradeable through digital modules and upgraded components for future-proof performance.
5
Mercury-Free and RoHS CompliantMercury-free and compliant with EU RoHS Directive for safe and responsible manufacturing.
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
Product or Component Type
Programmable controllers
Product Specific Application
HVAC and pumping solution
Variant
Programmable
Total inputs/outputs
28
Discrete input number
8
Discrete output number
1 relay outputs SPDT with independent common3 relay outputs SPST with same common2 relay outputs SPST with same common2 relay outputs SPST with independent common
Discrete output current
1 A relay SPDT3 A relay SPST
Analogue input number
8 configurable by pair
Analogue output number
2 voltage 0...10 V2 voltage/current 4...20 mA or 0...10 V or PWM (2 kHz)
Number of port
1 CAN port - screw terminal block1 USB type A - USB type A female1 USB type mini B - USB device port Mini-B2 RS485 - screw terminal block Modbus serial link or BACnet MS/TP)1 Ethernet - RJ45 Modbus TCP and BACnet IP with webserver)
Input/output number
8 digital input8 analog input4 analog output8 digital output
Discrete input logic
Sink or source (positive/negative)
Discrete input voltage
24 V AC/DC
Discrete input current
2.5 mA
input impedance
10 kOhm
Analogue input type
impedance 0...1500 hOhm impedance 0...300 daOhmNTC temperature probe - 50...110 °C 0.1 °C extended) voltage 0...10 VNTC temperature probe - 40...150 °C 0.1 °C current 0...20 mA/4...20 mAPTC temperature probe - 55...150 °C 0.1 °C voltage 0...5 V absolute or ratiometric)Pt 1000 temperature probe - 200...850 °C 0.1 °C
Sensor power supply
5 V DC 50 mA supplied by the controller24 V DC 150 mA supplied by the controller
[Us] rated supply voltage
24 V +/- 10 % AC20...38 V DC
Power consumption in W
15 W 24 V AC/DC
Realtime clock
Built-in clock at -4...140 °F (-20...60 °C)
Display type
Without Display
Overvoltage category
II
Local signalling
for programmable 1 LED (red) for programmable 1 LED (yellow) for programmable 1 LED (green) for power 1 LED (green)
Mounting Support
DIN railPanel mounting with accessory
Width
5.7 in (144 mm)
Height
4.3 in (110 mm)
Depth
2.4 in (60.5 mm)
Net Weight
0.7 lb(US) (0.3 kg)
Directives
86/188/EEC - physical agents (noise) directive2006/95/EC - low voltage directive
