Integrator note: SIPLUS S7-200 analog I/O
The 6AG1235-0KD22-2XB0: This is the ruggedized spare part version of the S7-200 EM235 — SIPLUS coating and -25...+70°C range make it the go-to for condensation-prone or temperature-cycled panels. 4 analog inputs (+/-10 V DC), 1 analog output (12-bit), purpose-built for the S7-22X CPU family. No fieldbus, no extras; it's a drop-in replacement for the standard EM235 when the environment demands the coating.
Where it fits – and where it doesn't
Don't confuse this with LOGO! expansion modules like the 6ED1052-1FA00-0BA0. The 6AG1 slots onto the S7-200 backplane only. If your panel was wired for a LOGO! module, this won't even key the same bus connector. CPU family must match: S7-22X, not LOGO! Basic.