Intelligent co-processor unit, 63K byte RAM / 63K byte EEPROM, 2x RS-232C, 1x RS-422 port (must be mounted to CPU or CPU expansion backplane)
Omron CV500-BSC21 Intelligent co-processor unit, 63K byte RAM / 63K byte EEPROM, 2x RS-232C, 1x RS-422 port (must be mounted to CPU or CPU expansion backplane)