SIPLUS variant of the standard S7-1200 analog I/O slice, this 6AG1234-4HE30-2XB0 gives you four differential inputs (0-20 mA or ±10/5/2.5 V) and two outputs, all rated for -40°C to 70°C ambient. That temperature floor is the main reason to reach for the SIPLUS line — standard S7-1200 analog modules stop at 0°C. The 24 VDC rail draws 2 W typical; differential inputs reject common-mode up to 12 V, which helps in long cable runs near drives.
Where it fits in the rack
Mechanical dimensions: 45 mm wide, 100 mm high, 75 mm deep. IP20 housing with diagnostics for wire-break and short-circuit alarms. Front connector required (ordered separately).
Sibling: 6AG1234-4HE32-4XB0
The -4HE32-4XB0 has a different I/O configuration; verify channel count before substituting. Both are SIPLUS with the same mechanical profile and front connector.