Sharp JW-20CM, JW-20RS 9-8Error and treatment, JW–20CM, (1) Indication lamp

9-8 Error and treatment

Operation status of the JW-20CM can be check by indication lamps, flags, or system memory.

(1) Indication lamp

JW–20CM

C O M M ○	○ S 0
S D ○	○ S 1
R D ○	○ S 2
C D ○	○ S 3
L T ○	○ S 4
T E S T ○	○ S 5
E R R O R ○	○ S 6
F A U L T ○	○ S 7

Indication lamp

Name	Operation	Recovery	9
COMM	Lights while the remote I/O is operating	--------------------------------------------------
SD	Flickers while sending data	--------------------------------------------------
RD	Flickers while receiving data	--------------------------------------------------
CD	Flickers while detecting a carrier	--------------------------------------------------
	Lights when the termination resistance
LT		--------------------------------------------------
	switches turned ON
TEST	Lights while testing	--------------------------------------------------
		· Check disconnection of communication cable
	Lights while an error is detected (Indicate	· Check settings of switches
ERROR
	error code by S0 to S7 LEDs)	· Check settings of parameter
		· Check power supply voltage.
	Lights when the watchdog timer is time
FAULT		Replace the JW-20CM
	up (JW-20CM is faulty)
	Indicates error codes by hexadecimal
S0 to S7		See the next page
	when an error is occurred

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