2 CH A/I 4-20MA S/END SC PROT.

2-channel analog input - 4-20 mA, Single-ended, light gray


This analog input module processes standard 4–20 V signals. The input signal is electrically isolated and transmitted with a resolution of 12 bits.

The 24 V field supply is derived from the module's power jumper contacts. The shield directly connects to the DIN-rail. This module supplies the short circuit-proof voltage for 2-wire signal conditioners. A short circuit to power is indicated as an error/fieldbus failure and a message is sent to the supervisory control.

Number of analog inputs: 2
Total number of channels (module): 2
Signal type: Current
Signal type: 4 … 20 mADC
Sensor connection: 2 x (2-wire, 3-wire)
Input filter: 50Hz
Input voltage (note): Non-linear, overload protected U = 1.2 V + 100 Ω x I meas
Signal characteristics: Single-ended
Resolution [bit]: 12Bit
Input resistance (max.): 160Ω
Data width: 2 x 16-bit data; 2 x 8-bit control/status (optional)
Noise rejection at sampling frequency: -100dB
Noise rejection above sampling frequency: -40dB
Conversion time (typ.): 80ms
Measurement error (reference temperature): 25°C
Measurement error, deviation (max.) from the upper-range value: 0.1%
Temperature error (max.) of the upper-range value: 0.01%/K
Supply voltage (system): 5 VDC; via data contacts
Current consumption (5 V system supply): 100mA
Supply voltage (field): 24 VDC (-25 … +30 %); via power jumper contacts (power supply via blade contact; transmission via spring contact)
Isolation: 500 V system/field
Indicators: LED (A, C) green: Function AI 1, AI 2; LED (B, D) red: Error AI 1, AI 2
Number of incoming power jumper contacts: 2
Number of outgoing power jumper contacts: 2