What this module is
The Siemens 6ES7134-4GB62-0AB0 is an ET 200S analog I/O module packing two analog inputs and two analog outputs in a 15 mm wide slice. It covers 0 to 20 mA, 4 to 20 mA, and −20 to +20 mA ranges, with isochronous mode for deterministic updates. Cycle time hits 250 µs across all channels. Short-circuit proof and reverse polarity protected. Wire-break diagnostics active on the 4 to 20 mA range only. Group error LED (SF red) plus per-channel diagnostics readable over the bus.
Integration notes
Step response selectable: none (1x cycle time), low (4x), medium (16x), high (32x). Overflow/underflow and hardware interrupt available. Between-channel isolation not provided; backplane-to-channel is isolated.