The Siemens 6ES7134-4FB50-0AB0 is a 2-channel analog input module for the ET 200S distributed I/O family, digitizing two ±10 V signals at up to 12-bit resolution including sign. Cycle time across all channels is 1 ms, with a per-channel conversion of 0.1 ms — fast enough for closed-loop speed or position monitoring. Width is 15 mm, depth 52 mm, so it fits the narrow ET 200S terminal rail without stealing space from adjacent modules.
Powers from the 24 V DC backplane bus via the power module; no separate supply terminal needed. Shielded cable runs up to 200 m; no wire-break detection on the inputs. Group diagnostics (SF LED) is parameterizable — enable it for maintenance visibility, disable it if you want a clean rack during normal operation. Overflow/underflow detection is also parameter-configurable per channel.