The Siemens 6ES7132-7RD20-0AB0 is a SIMATIC DP electronics module for the ET200iSP distributed I/O system. It provides 4 digital outputs at 17.4 V DC, each rated for 40 mA with the ability to parallel outputs for 80 mA when uprating is enabled.
Outputs and current handling
Each channel sinks 40 mA continuous; parallel operation boosts that to 80 mA total across the paralleled outputs. The internal resistor sits at 150 Ω and the no-load voltage at 17.4 V DC. Switching frequency is 100 Hz with resistive loads, 2 Hz with inductive loads. Short-circuit detection thresholds shift between single-output mode (R < 800 Ω) and parallel mode (R < 40 Ω). Wire-break alarm triggers when load resistance exceeds 10 kΩ or sink current drops below 100 µA.
Diagnostics and status
A parameterizable diagnostic alarm reports group faults (SF red LED) and per-channel status via green LED. Diagnostic information is readable over the backplane bus. No channel-to-channel isolation, but circuits are isolated from backplane bus and load voltage L+ at 60 V DC/30 V AC.
Power and loading
Typical current draw from the backplane is 380 mA; power loss is 2.8 W. The module consumes up to 400 mA from load voltage L+ when unloaded. These numbers must be accounted for in the ET200iSP station's power budget.