Product Overview

The 6ES5466-4UA11​ is the floating (galvanically isolated) analog input module in the Siemens SIMATIC S5 466 family, re-engineered to serve both the mid-range S5-115U/H/F racks and the large-frame S5-135U/155U/H process racks — a dual-compatibility that sets it apart from most S5 analog modules, which are typically locked to one rack tier. It replaces the earlier 6ES5466-3LA11​ with revised terminal assignment and updated componentry, while retaining the core value proposition: 8 differentially measured floating inputs or 16 single-ended inputs, user-selectable via DIP, delivering 12-bit-class conversion in a single S5 long-slot.Where the sibling 6ES5460-4UA11​ (also 8AI floating) targets process analog with range-card flexibility and resistance-mode support, the 6ES5466-4UA11​ pivots toward higher resolution and faster scan — 12-bit two’s complement / 11-bit + sign / 12-bit binary representation (selectable), successive-approximation conversion at ~25 µs per channel, and a full 8-differential scan completed in ~2 ms. This makes the 6ES5466-4UA11​ the preferred 466 variant when the S5-115U/H/F or S5-135U/155U rack is serving data-acquisition-grade loops — precision pressure, high-resolution position, or any 4–20 mA / ±10 V transducer where the 9+sign bit of the 460 family is marginal.Configuration on the 6ES5466-4UA11​ is entirely hardware-DIP: six range-select DIP switches (paired per quad of channels) choose among twelve voltage and current spans — ±1.25 V, ±2.5 V, ±5 V, ±10 V, 0–1.25 V, 0–2.5 V, 0–5 V, 1–5 V, 0–10 V, 0–20 mA, 4–20 mA, ±20 mA — while DIP 7 selects differential (8-channel, OFF) or single-ended (16-channel, ON). An additional DIP bank sets the process-image address. No software initialization, no parameter blocks, no range cards — the S5 CPU reads the converted words directly from the 32-byte PII allocation once the DIPs match the wiring. This “zero-code” commissioning is a hallmark of the 466 design and a relief in plants where downloading to a running S5-135U/155U is restricted.Like the rest of the S5 466 line, the 6ES5466-4UA11​ is end-of-life in Siemens’ active catalogue with no direct MLFB successor, making NOS, refurbished, and certified-surplus stocks the procurement path for S5-115U/H/F and S5-135U/155U plants planning extended run-time. Its German-made construction, 500 V AC isolation (channel-to-backplane, channel-group-to-group), and ±75 V / 1 ms pulse survivability on the input pins make it a durable field-interface anchor in noisy drive-adjacent and potientially ground-shifted installations.

Technical Specifications