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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

42

Parameter F_CRC_Length Does Not Match Generated Values (V2 CPU)

ABB · PB610 Panel Builder 600 Programming Software

What does 42 mean?

Parameter "F_CRC_Length" does not match the generated values in an AC500 V2 non-safety CPU PM5xx system. This indicates a misconfiguration in the CRC length parameter for PROFIsafe communication, leading to data integrity errors.

Common Causes

  • The CRC length value in parameter F_CRC_Length does not match the actual data length being transmitted.
  • Data corruption during transmission.
  • Incorrect calculation of Cyclic Redundancy Check (CRC).
  • Configuration mismatch between sender and receiver for CRC calculation.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the safety PLC configuration for the "F_CRC_Length" parameter.

Browse all codes in this manual (58)
Verified technical data. Last updated: April 2026

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1Safety Destination Address Not Valid (V2 CPU)10Parameter F_SIL Exceeds Specific Application SIL (V2 CPU)11Safety Watchdog Time Zero (V2 CPU)
Source: ABB PB610 Panel Builder 600 Programming Software
Open Manual (Page 434)Search more codes in this manual