- A detailed diagnostic evaluation of the Analog IO cards was conducted. It was determined that the transmitter is incorrectly configured to read field values due to a mismatch in the Device Revision (“Dev Rev”) setting within DeltaV. The newly installed transmitters (DevRev-9) differ from those originally configured.
Actual installed field transmitter has a Device Revision of 9 (“DevRev-9”), whereas in Delta V it is configured as “DevRev-3.” An attempt was made to update this configuration to version 9; however, the current version of Delta V supports transmitters only up to Device Revision 7 (“DevRev-7”). This limitation exists because, during Plant installation, transmitters were limited to revision 7 or earlier.