Part identity & placement
Siemens 6ES7134-4JB01-0AB0 is a 2-channel analog input module for the ET 200S family. It supports thermocouple types B, E, J, K, L, N, R, S, and T. Runs on 24 V DC from the power module, draws 0.6 W typical. Integration time is parameterizable at 16,7 or 20 ms, and digital filtering can be set in four stages (none, low, medium, high) to knock down line noise.
The 1 MΩ input resistance (Type B) means negligible loading on thermocouple signals. Wire-break diagnostics work on thermocouples only — if you tie it to a voltage source, wire-break detection won't trip, so don't rely on it for RTD or mV-only loops. Shielded cable max length is 50 m; longer runs invite noise into the integrating ADC. The module isolates inputs to 500 V DC tested, which covers the ground-loop gap typical in multi-drop field wiring. Group diagnostics and overflow/underflow flags are individually enable/disable. The group error SF LED (red) on the front stays lit for any enabled fault, so you can wire it to the CPU's digital input for a single alarm point. Between-the-channels isolation is absent — keep the common-mode voltage within the module's range on each channel pair.
Lifecycle & sourcing posture
If you're filling a BOM line, quote this exact 6ES7134-4JB01-0AB0 against your order. No known direct replacement needed; it's the variant that covers the broadest TC list for a 2-channel ET 200S slice. Sourcing is straightforward — standard lead times apply, and we can quote to your schedule.