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Status Information and Troubleshooting
Section 9-2
9-2
Status Information and Troubleshooting
The Controller Link Support Board contains status information which reflects
the current status of communications and the Board. This status information
can be read using the STATUS READ or DATA LINK AREA READ FINS
command. The cause of the error can be found by reading the status informa-
tion.
This section explains the contents accessed by the ClkGetNetworkStatus
function and tells how to troubleshoot error information obtained.
9-2-1
Troubleshooting with the ClkGetNetworkStatus Function
The following network status is read by ClkGetNetworkStatus().
Type
Variable name
Contents
BYTE
byConnectionMethod
BYTE
byMyNodeAddr
Local unit address
Stores the local unit address set for the Controller Link Board.
BYTE
byMyUnitAddr
Local unit address
Stores the local unit address set for the Controller Link Board.
BYTE
byMyNetAddr
Local network address
Stores the local network address set for the Controller Link Board.
BYTE
abyNodeList[32]
WORD
wComunicationCycleTime
Communications cycle time
Stores the current value of the communications cycle time. (unit: 0.1 ms)
BYTE
byPollingNodeAddr
Polling node address
Stores the node address of the current polling node.
Wired/optical discrimination, transmission path form, etc.
Bit
−
:
N
ot specified.
Maximum number of nodes supported
00: 32 nodes
01: 64 nodes
Transmission path
0: Token bus
1: Token ring
Connection type
0: Wired
1: Optical ring
Note
When optical and optical ring connections are combined, the maxi-
mum number of nodes supported will be gi
v
en as 62 nodes for an opti-
cal ring connection e
v
en if the maximum number of nodes is 32.
N
etwork participation status
Stores a list of the nodes participating in the network.
Bit
[0]
[1]
[2]
[30]
[31]
N
ode 1
Reser
v
ed
N
ode 3
N
ode 2
N
ode 5
N
ode 4
N
ode 61
N
ode 60
Reser
v
ed
N
ode 62
N
ode Participation Information
0:
N
ot participating in network
1: Participating in network
0:
N
ormal disconnection
1: Error disconnection
(when not participating)
0:
N
ormal
1:
N
o response to polling.
Note
For Wired
N
etworks set to a maximum of 32 nodes, the abo
v
e
information is
v
alid through node 32 (lower 4 bytes of
aby
N
odeList[16]).
Summary of Contents for SYSMAC 3G8F7-CLK12-EV1
Page 2: ......
Page 4: ...iv ...
Page 20: ...xx Conformance to EC Directives 6 ...
Page 48: ...28 Applications Precautions Section 1 4 Example CX Programmer Response Timeout Setting ...
Page 68: ...48 Backup Power Supply Wiring Optical Ring Systems Only Section 2 4 ...
Page 74: ...54 Using the C Library Section 3 2 ...
Page 110: ...90 Changing the Data Link Tables with Active Data Links Section 5 5 ...
Page 187: ......