Siemens 6ES7135-4LB02-0AB0 Programmable Logic Controller Module

Siemens 6ES7135-4LB02-0AB0 is a 2-channel analog output module (2AO U HF) for the ET 200S decentralized I/O system, delivering two analog outputs from a 24 V DC load supply. The module is 15 mm wide, weighs about 40 g, supports isochronous operation and I&M functions, and provides isolation between the channels and the backplane bus as well as between the channels and the load voltage (U_iso up to 75 V DC / 60 VAC), with reverse polarity protection. It uses a 7-byte parameter length and a 4-byte address space, with analog value representation in S5 and S7 formats, a cycle time per module of 0.5 ms and shielded cable length up to 200 m (100 m if T_WA < 2 ms). Output voltage ranges are selectable among ±5 V, ±10 V, and 1–5 V, with 15-bit resolution plus sign, and the module includes diagnostic capability (Red SF LED) and parameterizable substitute values.