Delta DVP-SS2 User Manual

7 CANopen Function and Operation
7-23
 RUN indicator
LED indicator
Description
How to deal with
The green
light is on.
PLC is running No resolution is required
Light is off PLC is in stop status
Make PLC run through RUN/STOP switch or
WPLSoft
 ERROR indicator
LED indicator
Description
How to deal with
Light is off
PLC is normal
No resolution is required
The red light
flashes.
There are syntax
error existing in the
program written to
PLC or the PLC
device or instruction
is out of the allowed
range.
Judge the error cause according to the content
value of the special register D1004 in PLC; find
the program error position according to the
content value of D1137. For more details on the
error codes in D1004, please refer to “ES2 series
PLC operation manual (Programming)”.
The red light
keeps on.
PLC scan is
timed-out
Reduce the time for executing PLC program or
use WDT instruction
 COM3（CANopen）Indicator
LED indicator
Description
How to deal with
The green
light keeps on.
DVP-ES2-C is
normal.
No resolution is required
The green
light is in
single flash.
DVP-ES2-C stops.
The superior equipment is downloading the
network configuration and waiting to complete
downloading.
The green
light flashes.
As DVP-ES2-C is in
slave mode, it is
preoperational;
As DVP-ES2-C is in
master mode, some
slave is offline.
1. Check whether the wiring of the CANopen bus
cable is correct.
2. Check whether the baud rate of the master is
the same as that of the slave.
3. Check if the configured slaves have connected
to the network.
4. Check if any slave is offline.
The red light
is in double
flashes.
The slave is off-line.
1. Check whether the CANopen bus cable is a
standard one.
2. Check whether both ends of the CANopen bus
are connected to the terminal resistors.
The red light
in single flash.
At least one error
counter in the CAN
controller reaches or
exceeds the warning
level.
1. Check whether the CANopen bus cable is a
standard one.
2. Check whether both ends of the CANopen bus
are connected to the terminal resistors.
3. Check whether there is much interference
around the CANopen bus cable.
The red light
keeps on.
Bus-off
1. Check whether the wiring of the bus cable in
the CANopen network is correct.
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
 While 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

Delta DVP-SS2 Specifications

General

Brand	Delta
Model	DVP-SS2
Category	Controller
Language	English