What this module is — and why the coating matters
The 6AG1526-2BF00-2AB0: This is the SIPLUS variant of the standard S7-1500 F-DQ 8x24VDC/2A safety digital output module (6ES7526-2BF00-0AB0), with conformal coating and an extended -30 °C to +60 °C operating range. It delivers eight 24 V DC transistor outputs at 2 A per channel, with the full module rated at 8 A continuously up to 60 °C — no derating needed in warm panels. The safety function reaches SIL 3 (IEC 61508) and PL e (ISO 13849-1).
What the headline ratings tell a sourcing buyer
Per-channel current: 2 A at 24 V DC, typical response threshold at 2.9 A triggers overload protection. Lamp load switching is limited to 10 Hz; inductive loads need proper flyback suppression, but that's standard practice with any transistor output. Diagnostics cover wire-break, short-circuit, and open-circuit detection — each channel gets a green status LED, and the module reports group error via the red LED. I&M data (0 to 3) is supported, and firmware updates are field-applicable. The conformal coating on this SIPLUS variant protects against corrosive gases and condensation. If your panel environment doesn't require that, the standard non-coated module (6ES7526-2BF00-0AB0) is a functional match without the extended temperature rating. No other direct second-source carries both the safety F-rating and the coating; the module is a single-source part for that combination.
Mechanical fit and panel considerations
Width 35 mm, height 147 mm, depth 129 mm — occupies one single-width slot on the S7-1500 rail. Shielded cable length up to 1 000 m, unshielded 500 m. On the backplane, dissipates 11 W typical. Isolation tested at 707 V DC type test.