2 AI High Feature for ET 200S — 15 mm slice
The Siemens 6ES7134-4MB00-0AB0 is a SIMATIC DP electronic module providing 2 analog inputs (High Feature) for the ET 200S distributed I/O system. It handles both 4-20 mA and ±20 mA signals with 15-bit plus sign resolution, making it the go-to slice for process transmitters or bipolar loop signals in a cement plant or any dusty control cabinet.
Input ranges and diagnostics that matter on a live line
Supports 4 mA to 20 mA (15-bit) and -20 mA to +20 mA (15-bit + sign) — the ±20 mA range catches bipolar signals from valve positioners or bidirectional flow meters without an external signal conditioner. Built-in wire-break detection flags an open loop on a 4-20 mA transmitter before the process drifts. The group error SF (red) LED lights on any fault, and the module reports overflow/underflow conditions to the controller. Isolation is maintained between the channels and the backplane bus, and between the channels and the load voltage L+ — no channel-to-channel isolation, so adjacent loops share a common reference. The 15 mm width fits a standard ET 200S terminal block slice; depth is 52 mm, height 81 mm.