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6-3
Section
Commands and Responses for the Support Board
87
Bit
Reserved for
system use.
The numbers in the boxes indicate the node
addresses. The bit status of a particular
node address shows whether or not that
node is participating 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
7
6
5
4
3
2
1
0
6 5 4 3 2 1
8
15 14 13 12 11 10 9
16
23 22 21 20 19 18 17
24
31 30 29 28 27 26 25
32
39 38 37 36 35 34 33
40
47 46 45 44 43 42 41
48
55 54 53 52 51 50 49
56
– 62 61 60 59 58 57
–
Bytes 5 to 8 are all reserved for Wired Units.
6-3-6 NETWORK STATUS READ
Reads the operating status of the entire Controller Link Network.
Command Block
02
06
Command
code
Response Block
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
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.
7
6
5
4
3
2
1
0
0
Reserved (0)
Node #2
Node #4
Bit
Byte 1
Byte 2
Byte 3
Byte 17
Byte 18
Byte 32
Node #1
Node #3
Node #5
Reserved (0)
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 #32
Node #34
Node #62
All data from the upper 4 bits of byte 16 (node address 33)
though byte 32 are reserved for Wired Units (always 0).
Actual communications cycle time (response): The actual communications
cycle time is returned in units of 100
µ
s in hexadecimal.
Polling node address (response): The current polling node address is re-
turned in hexadecimal.
Parameters