Section
9-2
Status Information and Troubleshooting
129
Type
Contents
Variable name
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]
Network participation status
Stores a list of the nodes participating in the network.
Bit
[0]
[1]
[2]
[30]
[31]
Node 1
Reserved
Node 3
Node 2
Node 5
Node 4
Node 61
Node 60
Reserved
Node 62
Node Participation Information
0: Not participating in network
1: Participating in network
0: Normal disconnection
1: Error disconnection
(when not participating)
0: Normal
1: No response to polling.
Note
For Wired Systems, the above information is valid through node 32
(lower 4 bytes of abyNodeList[16]).
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.
BYTE
byStatus1
Reserved area
Stores undetermined data.
BYTE
byStatus2
Baud rate, power supply status, terminating resistance setting status
For Wired Systems, stores the set baud rate and the setting of the
terminating resistance switch.
For Optical Ring System, stores the power supply status.
Bit
Baud rate
0x1: 2 Mbits/s
0x2: 1 Mbits/s
0x3: 500 kbits/s
Wired System
0: Terminating resistance switch OFF
1: Terminating resistance switch ON
Optical System
0: No backup power supply
1: Backup power supply
BYTE
byStatus3
Error information 1
Stores information such as whether or not there is an error log recorded,
node address setting errors, etc.
1: Error history
1: Fatal data link error
1: Communications controller send
section error
1: Node address setting error
1: Node address duplicated
1: Network parameter mismatch
1: Communications controller
hardware error
BYTE
byStatus4
Reserved area
Stores undetermined data.
BYTE
byStatus5
Error information 2
Stores information such as EEPROM write errors, setting table errors, etc.
1: EEPROM write error
Bit
1: Network parameter error
1: Data link table error
1: Routing table error
