Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual CANopen Network Node State Display

DVP - ES2/EX2/SS2/SA2/SX2/SE Operation Manual - Programming

LED indicator	Description	How to deal with
	There are syntax	Judge the error cause according to the content
	error existing in the
		value of the special register D1004 in PLC; find
The red light	program written to
		the program error position according to the
	PLC or the PLC
flashes.		content value of D1137. For more details on the
	device or instruction
		error codes in D1004, please refer to “ES2 series
	is out of the allowed
		PLC operation manual (Programming)”.
	range.
The red light	PLC scan is	Reduce the time for executing PLC program or
keeps on.	timed-out	use WTD instruction

¾COM3（CANopen）Indicator

LED indicator	Description		How to deal with
The green	DVP-ES2-C is	No resolution is required
light keeps on.	normal.
The green	DVP-ES2-C stops.	The superior equipment is downloading the
light is in		network configuration and waiting to complete
single flash.		downloading.
	As DVP-ES2-C is in	1. Check whether the wiring of the CANopen bus
			cable is correct.
	slave mode, it is
		2.	Check whether the baud rate of the master is
The green	preoperational;
			the same as that of the slave.
light flashes.	As DVP-ES2-C is in
		3. Check if the configured slaves have connected
	master mode, some
			to the network.
	slave is offline.
		4.	Check if any slave is offline.
The red light		1.	Check whether the CANopen bus cable is a
			standard one.
is in double	The slave is off-line.
		2.	Check whether both ends of the CANopen bus
flashes.
			are connected to the terminal resistors.
	At least one error	1.	Check whether the CANopen bus cable is a
			standard one.
	counter in the CAN
The red light		2.	Check whether both ends of the CANopen bus
	controller reaches or
in single flash.			are connected to the terminal resistors.
	exceeds the warning
		3.	Check whether there is much interference
	level.
			around the CANopen bus cable.
		1.	Check whether the wiring of the bus cable in
The red light	Bus-off		the CANopen network is correct.
keeps on.		2.	Check whether the baud rate of the master is
			the same as that of the slave.

7.5.2 CANopen Network Node State Display

¾While the special auxiliary relay M1349 of DVP-ES2-C is ON, the CANopen function is enabled and D9980~D9998 will be used as the special registers as the table shows below.

Special register	Function
D9980	Used for displaying the state of DVP-ES2-C.
D9981~D9996	Used for displaying the state of 16 nodes in the network
D9998	Used for monitoring the state of the entire CANopen network

¾As a master, DVP-ES2-C supports maximum 16 slaves ranging from node 1 to node 16.

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