The Siemens 6AG1135-6HB00-2DA1 is a SIPLUS ET 200SP analog output module, two channels of voltage or current, built for extended temperature range (-40…+60 °C) with conformal coating. It's based on the standard 6ES7135-6HB00-0DA1 but hardened for environments where condensation, vibration, or thermal swings would kill a standard card.
Output resolution hits 16-bit signed for the ±10 V and ±20 mA ranges, with fast settling: 45 µs when both channels are active, 35 µs if you only use one. That puts it in the high-speed bracket for closed-loop applications—valve control, hydraulic servo, tensioning. The power loss is only 0.9 W, which keeps the thermal load inside the ET 200SP IP20 cluster manageable. The conformal coating (not the standard module's omission) is the main decision driver. If the panel will see condensation, high humidity, or periodic washdown, this variant eliminates conformal coating as a field retrofit. The -40…+60 °C operating range covers cold storage areas and hot machine enclosures.