VMIVME-3122 Combustion engine general card

In a system in which the hardware configuration is stored from one target and logic is stored from a different target, powering-up from flash will not work. The observed behavior is that, following a power up from flash, Machine Edition software reports hardware configuration and logic "not equal". Nuisance Faults (GBC in configuration) Four “Non-critical CPU software event” faults may appear when some hardware configurations that contain GBC modules are stored. These faults may be ignored. Sequence Store Failure In systems with very large hardware configuration, it is possible to encounter a “PLC Sequence Store Failure” error when writing the configuration to flash. To work around this error, either: 1. Perform an explicit clear of flash prior to performing the write. 2. Increase the operation timeout used by Machine Edition software prior to performing the write. Thermocouple Module Fails to Power Up Correctly After some power loss events, the Horner Thermocouple module (HE697THM160) may fail to power up successfully. After failure, the %AI data will not be updated correctly and will continue to return zero values. There are no module fault indicators for this event. The user should power cycle again to restore normal function.

C Toolkit PlcMemCopy Documentation Incorrect 

This routine does allow the destination and source pointers to be outside of reference memory. If the destination points to discrete reference memory, overrides and transitions will be honored. Note that the header for PlcMemCopy has been updated in Release 3.50of the C toolkit. PCM Unable to Read/Write to %P Memory A PCM module attempting to read or write to program memory (%P) through C code will receive a Ref Out of Range error even if the read/write is valid. Fault Contacts on Modules in Expansion Rack When an expansion rack powers up, the slot fault contacts will prematurely indicate that the modules in the expansion rack are not faulted before they complete their power up. Use I/O point fault contacts to verify validity of the I/O. Fault Contacts on Remote I/O Station If multiple faults exist in a Series 90-70 Remote I/O Station and one of them is corrected, a FAULT contact that uses the Remote I/O Station’s module reference will incorrectly indicate that no faults exist at the Remote I/O Station. BIT_SEQ Function Block DIR Parameter The BIT_SEQ Function Block should require the user to flow BOOLEAN logic into the DIR parameter, but currently does not. If no DIR parameter is present, the BIT_SEQ will increment by default.

Number of SRTP Requests Tallied May Vary 

When running multiple SRTP client channels, the number of requests, as reported by the client and the server, may differ between the connections. SRTP Connections Remain Open After IP Address Changed The Ethernet Interface does not terminate all open SRTP connections before changing its IP address. Once the local IP address has changed, any existing open TCP connections are unable to normally terminate. This can leave SRTP connections open until their underlying TCP connections time out. If quicker recovery of the SRTP connection is needed, modify the “wkal_idle” Advanced User Parameter to reduce the TCP keep alive timer down to the desired maximum time for holding open the broken connection. Refer to TCP/IP Ethernet Communications for PACSystems, GFK-2224, for details.

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