Troubleshooting; Canopen Network Node State Display - Delta DVP-ES3 Series Operation Manual

10.5

Troubleshooting

10.5.1 CANopen Network Node State Display

1. In the DVP-ES3 Series PLC, while you enable the CANopen function, it uses SR825–893 as the special
registers as shown in the following table.
Special register
SR825
SR830–SR893
SR826
SR827
SR828
SR289
SR821
SR822
2. As a master, the DVP-ES3 Series PLC supports a maximum of 64 slaves ranging from node 1 to node
64. You can use SR826–829 to monitor the state of the nodes in the network. The 16 bits in SR826
correspond to 16 slaves and their corresponding relations are shown in the following table.
Bit b7
Node Node 8
Bit b15
Node Node16
When the node in the master node list is normal, the corresponding bit is OFF; when the node in the
master node list is abnormal (for example, initializing fails or the slave is offline for some reason), the
corresponding bit is ON.
3. The error code of every node is displayed through the corresponding special register (SR830–893) and
the relations between special register and corresponding node (1–16) is shown in the following table.
(You can also judge for other correspondings that are not listed here.)
Special
SR830
register
Node Node 1
Special
SR838
register
Node Node 9
4. Node codes displayed in SR830–893 when the ASSeries PLC is the master:
Code
The node is error free or the node is
0
not configured.
C h a p t e r 1 0 C A N o p e n F u n c t i o n a n d O p e r a t i o n
Displays the state of CANopen DS301 Master
Displays the state of 64 nodes in the network
Flag for the state of the slave 1–16
Flag for the state of the slave 17–32
Flag for the state of the slave 33–48
Flag for the state of the slave 49–64
Version of CANopen DS301
Displays the CANopen baud rate (unit: 1kpps)
b6 b5 b4
Node 7 Node 6 Node 5
b14 b13 b12
Node15 Node14 Node13
SR831 SR832 SR833
Node 2 Node 3 Node 4
SR839 SR840 SR841
Node10 Node11 Node12
Indication
N/A
Function
b3 b2 b1
Node 4 Node 3 Node 2
b11 b10 b9
Node12 Node11 Node10
SR834 SR835 SR836
Node 5 Node 6 Node 7
SR842 SR843 SR844
Node13 Node14 Node15
How to correct
b0
Node 1
b8
Node 9
SR837
Node 8
SR845
Node16
10
1 0 - 2 7