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171CBB97030 Processor/4 Port Switch IEC Exec. Upgrade to v.1.05

Release Notice

The purpose of this resolution is to inform 171CBB97030 users that the IEC Exec. has been upgraded (March 2008) to version 1.05, for use with Concept 2.6.

Goals and Symptoms

IEC Exec version 1.05 resolves the following issues:

  • 1) Under certain conditions, the M1E would not respond to a second ARP.

    2) If two or more MSTR TCP function blocks (ie. Read_Reg) are programmed in logic, periodically, one of the blocks could freeze operation for 3-5 minutes, then recover on its own.

    3) PSH flag is no longer set in the SYN and FIN packets. This caused communication problems between the M1E and a third party device.

    4) Fixes an issue in the M1E web page where the 'TCP Retry' counter would increment every time a TCP MSTR block was activated.

Causes and Fixes

Installing IEC Exec. v.1.05 (filename: mpsv105e.bin) resolves the above mentioned issues.

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