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Goals and Symptoms
This resolution alerts STB users of High Resolution Analog Input modules that they may momentarily encounter brief loss of module readings during operation. It also documents a fix for the problem.
Facts and Changes
When using an analog input module listed below in a large island configuration, ie: 25 30 I/O, the module ERR LED may randomly flash and its input value drop to zero.
If this happens, Advantys Configuration Software will display an associated "node error" message in the log file, and the module outline in the graphic display will blink red. The module will return to normal operation after a one or two second interval.
This misoperation can happen when the island Baud Rate Tuning is set to 800kbits/sec, but occurs most frequently when set to 500kbits/sec. In Advantys Configuration Software, Baud Rate Tuning is selected in the Island dropdown menu.
NIM type has no impact on this issue
Modules of concern are:
Causes and Fixes
Modules with the minimum SVs listed below will not display the problem. Since firmware changes to the modules are required, they are not field upgradeable.
STBAVI0300 SV: 01.11
STBACI0320 SV: 01.04
STBACI8320 SV: 01.04
STBAVI1400 SV: 01.11
STBACI1400 SV: 01.11