The module is designed for connecting resistance thermometers (up to four), measuring their indications, and trasmitting the measurement data via the RS-485 network, or for creating analog signals at output terminals via four channels.
  • Specifications

Specifications

4 analog input/output channels, RS-485
Input/output channels
Number of channels 4
Operation mode resistance measurement; analog signal output (current/voltage)
Connection type two-wire, three-wire, four-wire
Operation in the thermal resistance measurement mode
Temperature range, °C -50…250
Basic absolute error 0,20%
Plug-in resistance thermometers Pt 100, Pt 1000
Operation in the thermal resistance measurement mode
Galvanic isolation between channels, kV 2,5
DAC bits 12
Load impendance, min., kOhm 2
Output value ranges o in current output mode, mA 0 ÷ 24, 0 ÷ 20, 4 ÷ 20
Output value ranges o in voltage output mode, V from 0 to 5, from 0 to 10, from -5 to +5, from -10 to +10
RS-485 interface
Ports 1
Baud rate, bit/s: up to 115,200
RS-485 interface communication protocol IEC 870-5-101, Modbus RTU
Power supply
Number of channels 2
Power supply voltage 24 (9 - 63) V
Power consumption (at 24 V) 3 VA
Design
Case IP 20 plastic
Mounting DIN rail 35 mm
Overall dimensions (WxHxD) 22.5 x 99 x 117
Weight, kg 0,3
Reliability
Mean time between failures, h 140,000 hours
Average lifetime 30 years
Operating environment:
Ambient air temperature, 0С -40 to +70
Average humidity (non-condensing), % 5 ÷ 95 at 30 °C
Air pressure, kPa 60 ÷ 106.7