First time using AB Micro850 - out of the box and powered up "MS" and "FAULT" are flashing. Connected via USB but cannot connect to the PLC. Tried to update firmware and get failure because PLC is not in right condition
I just learned with the addition of an expansion module, and end of bus terminator is required; this may be the problem. Ordered one, and will install next week
If you do wind up updating the firmware don't use the USB connection. I've had a very high failure rate with the ControlFlash program when using a USB connection and from what I understand it is a known issue. Use the USB to configure the Ethernet port and connect ControlFlash using that.