Omron CQM1H-CLK21 - Manual (Page 228)

205
Commands and Responses for Controller Link Units Section 6-5
Network participation status (response): The following diagram shows the
bits corresponding to node addresses in the Controller Link Network. When a
bit is returned as “1,” it means that the corresponding node is participating in
the network.
When CS1W-CLK21-V1 and CJ1W-CLK21-V1 Units are used and the Wired
Network 62 Node Enable Bit in the DM Parameter Area software switches is
ON, the network participation status of nodes 33 to 62 is returned in bytes 5
through 8. In other models, bytes 5 through 8 are reserved for system use.
6-5-6 NETWORK STATUS READ
Reads the operating status of the entire Controller Link Network.
Command Block
Response Block
Parameters Participation data (response): This parameter indicates the active status of
individual nodes with respect to the network (i.e. their participation in the net-
work). As shown in the following diagram, that status is expressed in four bits
corresponding to the node address.
When CS1W-CLK21-V1 and CJ1W-CLK21-V1 Units are used and the Wired
Network 62 Node Enable Bit in the DM Parameter Area software switches is
Bit
The numbers in the boxes indicate the node
addresses. The bit status of a particular
node address shows whether or not that
node participates in the network.
0: Not part of network
1: Part of network
(All boxes marked by "–" are reserved
for system use and fixed at "0.")
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
7 6 5 4 3 2 1 0
7
15
23
31
39
6
14
22
30
38
5
13
21
29
37
4
12
20
28
36
3
11
19
27
35
2
10
18
26
34
1
9
17
25
33
8
16
24
32
40
47 46 45 44 43 42 41 48
55 54 53 52 51 50 49 56
– 62 61 60 59 58 57 –
Reserved for system use.
Command
code
02 06
Response
code
Command
code
32 bytes
Participation
data
Actual
communications
cycle time
Polling node address
Data link operation
Data link type
8 bytes 62 bytes
Data link
recurring error status
Data link data
error counter
06 02
7 6 5 4 3 2 1 0
0
Reserved
Node #2
Node #4
Bit
Byte 1
Byte 2
Byte 3
Byte 17
Byte 18
Byte 32
Node #1
Node #3
Node #5
Node #33 Node #32
Participation Status of Individual Nodes
0: Not part of network
1: Part of network
0: Normal disconnection
1: Abnormal disconnection (Applicable only for
inactive nodes.)
0: Normal node
1: Non-responding node
(No response to polling)
Node #35 Node #34
Node #62 Reserved