The purpose of this resolution is to inform STB users of a firmware upgrade for the STBART0200 RTD/TC/mV module. This upgrade addresses the issue where in extreme rare instances the module would display a blinking ERR LED and both input readings would be zero. At that time 0x81 was displayed in a channel Status Register.
A/D Converter fault states resulting from exposure to EMI levels far greater than those defined by test standard EN61131-2 have been overcome by implementing a retry mechanism in the modules firmware.
1. Hot swap of the affected module restored it's operation.
2. STBART0200 firmware is not field upgradeable.
3. Modules with the new firmware are labeled: