Siemens
Siemens 6ES7231-4HF32-0XB0 SM 1231 8 AI Voltage / Current
Siemens 6ES7231-4HF32-0XB0 is a SIMATIC S7-1200 analog input module for adding 8 analog inputs to an S7-1200 controller without changing the CPU platform.
Broader comparison
The broader comparison is usually not between random module numbers, but between staying inside the S7-1200 expansion path and moving the application toward a different I/O architecture. Choose the family that matches the long-term signal map, not just today's spare slot.
Specifications
Product family
SM 1231 analog input modules
Exact model
6ES7231-4HF32-0XB0
Controller platform
Siemens SIMATIC S7-1200
Module type
analog input module
Channel count
8 analog inputs
Signal / electrical type
+/-10 V, +/-5 V, +/-2.5 V, or 0-20 mA / 4-20 mA; 12 bit + sign or 13 bit ADC
Siemens lifecycle status
PM300 Active Product
PLM effective date
Product phase-out listed for 2026-11-01
Net weight
0.187 kg
Package size
8.90 x 10.60 x 5.70 cm
Engineering check
Match TIA Portal hardware catalog entry and terminal wiring before replacement
Manuals & Datasheets
Compatibility
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Accessories
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Replacement / Alternatives
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