ET200S 2DO triac module – current production
The 6ES7132-4FB01-0AB0 measures 15 mm wide, 52 mm deep, and 81 mm high. Triac outputs switch lamp loads at 1 Hz max, resistive loads at 10 Hz, and inductive loads at 0.5 Hz.
Integration and fail-safe behavior
Address space is 1 byte per module; the module draws up to 18 mA from the backplane bus. Diagnostics are not implemented, so fault annunciation relies on the green status LED per channel or a higher-level CPU alarm. On CPU/master STOP, the module can substitute a value, keep the last value, or force 0/1 — configurable per channel group. This is essential for concurrently maintainable architectures: a controlled stop keeps downstream loads in a known state while the controller swaps over. Short-circuit protection is built in, and reverse-voltage protection works when sharing the same load voltage as the power module. Isolation between channels and backplane is tested at 2 500 V DC.