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For Simatic S7 system applications, Siemens 6ES7331-7PF11-0AB0 provides the function of an Analog Input Module.
For replacement planning, digital input hardware creates the path from field-level status signals to control logic, allowing the system to evaluate operating conditions and respond through configured sequences or protective actions. Application details remain governed by the exact product revision.
Within an S7 installation, the exact hardware order number determines supported interfaces and configuration behavior. System and software compatibility should be checked before replacement. The installed revision should be confirmed before the product is applied.
Country of origin is listed as Germany.
In the signal path, this approach helps preserve the intended system function while keeping selection aligned with the documented ratings, capacity, and compatibility requirements. Installation should follow the control node's approved hardware records.
Product phase out begun by Siemens 10.01.2023
SIEMENS SIMATIC S7-300 analog input SM 331, isolated, 8 AI thermocouples Type B, E, J, K, L, N, R, S, T TXK/TXK (L) according to GOST 16 bit, 50ms, 1x 40-pole
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