Siemens
Siemens 6ES7231-5PD32-0XB0 SM 1231 RTD 4xAI
Siemens 6ES7231-5PD32-0XB0 is a SIMATIC S7-1200 RTD analog input module for adding 4 RTD 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 RTD signal module
Exact model
6ES7231-5PD32-0XB0
Controller platform
Siemens SIMATIC S7-1200
Module type
RTD analog input module
Channel count
4 RTD analog inputs
Signal / electrical type
resistance thermometer input; SM 1231 AI 4x16 bit RTD
Siemens lifecycle status
PM300 Active Product
PLM effective date
Product phase-out listed for 2026-11-01
Net weight
0.191 kg
Package size
9.00 x 11.20 x 6.00 cm
Engineering check
Match TIA Portal hardware catalog entry and terminal wiring before replacement
Manuals & Datasheets
Compatibility
No compatibility products linked yet.
Accessories
No accessories linked yet.
Replacement / Alternatives
No alternatives configured yet.