Omron CQM1H-SCB41 operation manual Troubleshooting, Serial Communications, Board Error Information

	Board Replacement						Section 9-2
Serial Communications				For Serial Communications Boards, refer to the following error flags. When an
Board Error Information				error occurs, the corresponding flag is turned ON. All of these flags represent
				non-fatal errors.
	Word	Bit		Name		Probable cause	Possible remedy
	IR 200	00	Serial Communications Board		The Board has failed.		Secure the Board firmly in the
			Hardware Error Flag				slot or try it in a different CPU
							Unit. If the problem persists,
							replace the Board.
		01	Port Identification Error Flag		There is a problem with the		Replace the Board.
			(hardware error)		communications port.
		02	Protocol Data Error Flag		A checksum error was found in		Retransfer the protocol data.
					the protocol data.		If the problem persists,
							replace the Board.
		12/11	Protocol Macro Execution		An error occurred when the		Take countermeasures
			Error Flag (Port 1/2)		PMCR instruction was executed.		according to the error codes
							stored in bits 08 to 11 (port 1)
							or bits 12 to 15 (port 2) in
							word 204.
		15	PC Setup Error Flag		There is an error in the settings in		Check the settings for the
					the PC Setup.		Board in the PC Setup and
							restart the Board.
		14	Port 1 PC Setup Error Flag			Error in settings for port12.
		13	Port 2 PC Setup Error Flag			Error in settings for port 2.
	SR 254	15	Slot 1 Inner Board Error Flag		Turns ON when an error occurs		See remedies for AR 04.
					in the slot 1 Inner Board. The
					error code for slot 1 is stored in
					AR 0400 to AR 0407.
	AR 04	00 to 07	Slot 1 Inner Board Error Code
			01: Hardware error		The Board has failed (watchdog		Secure the Board firmly in the
					timer error). IR 20000 will also be		slot or try it in a different CPU
					ON.		Unit. If the problem persists,
							replace the Board.
			02: Hardware error		The Board has failed.
			10: Serial Communications		Refer to the errors in IR 200.		See remedies for IR 20000,
			Board error				IR 20001, IR 20002, IR
							20011, IR20012, and
							IR 20015.

When a fatal error occurs, the ERR/ALM indicator on the CPU Unit will light.

When a non-fatal error occurs, the ERR/ALM indicator on the CPU Unit will flash.

Refer to the indicator error displays.

Note The ERR/ALM indicator will continue to flash even after the cause of a non-fatal error has been removed for the Serial Communications Board. The indicator can be stopped by clearing the error from a Programming Console or other Program- ming Device. Press the FUN Key and then the MONITOR Key from the Pro- gramming Console. Refer to the CX-Programmer Operation Manual for the CX- Programmer procedure.

9-2	Troubleshooting
			This section describes how to resolve transmission and reception problems.
9-2-1	Host Link Communications
Serial com-		Indicator	Status	I/O memory	Cause	Remedy
munications		status	information,
mode			etc.

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