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5-4
Section
Checking Data Link Status
76
See 9-2 Status Information and Troubleshooting for troubleshooting proce-
dures.
First word
+1
+2
+3
Node 2
Node 4
Node 6
Node 8
to
to
to
to
Note The first word is set in the Fins-
Gateway settings. Refer to Fins-
Gateway online help for details.
+14
+15
+16
+17
+27
+28
+29
+30
Node 1
Node 3
Node 4
Node 7
Node 30
Node 32
Node 34
Node 36
Node 29
Node 31
Node 33
Node 35
Node 56
Node 58
Node 60
Node 62
Node 55
Node 57
Node 59
Node 61
PC Operating Status
0: Stopped
1: Running (PC program being executed.)
CPU Unit Error Status
0: No error
1: Error
Data Link Communications Error Status
0: Normal
1: Error (Data link data not received normally.)
Data Link Participation Status
0: Not participating or data links stopped
1: Participating
Offset Error Status (Offset larger than number of send words)
0: Normal
1: Error
Insufficient Reception Area
0: Normal
1: Insufficient
Excess Reception Area
0: Normal
1: Excess
(Data larger than data link reception area.
Overflow data discarded.)
(Data smaller than data link reception area.
Overflow area data not specified.)
Status
Values
Description
PC status
0: Program execution stopped
1: Program being executed
Indicates if the PC program is being executed or not.
Always 1 for Controller Link Support Board nodes.
CPU Unit error
0: No error
1: Error
Indicates if an error has occurred in the PC.
Always 0 for Controller Link Support Board nodes.
Communications
error
0: Normal
1: Error
Indicates if data link data for node was received normally or
not.
Data link
participation
0: Not participating in data links
or data links inactive
1: Participating in data links
Indicates data link participation status.
Offset error
0: No error
1: Error
“Error” indicates that the offset is larger than the number of
send words. The data links will operate and the node will
remain participating in the data links. The receive area at
nodes with this error will be all zeros.
Receive area
remaining
0: No receive area remaining
1: Receive area remaining
A receive area is “remaining” if the number of words in the
receive area is larger than the number of send words. Data
will be received normally and all words in the receive area
beyond those containing the send words will have
indeterminate status.
Insufficient (short)
receive area
0: Receive area not short
1: Receive area short
A receive area is “short” if the number of send words is larger
than the number of words in the receive area. Data will be
received normally, but all words that will not fit in the receive
area will be discarded.
•
The following shows an example of a remaining receive area.
Data indicated by
Send
area
Receive
area
Send
area
Receive
area
Data indicated by
No Remaining
is received in
node 2.
is received in node 2 and the
remaining words are cleared.
Remaining
Node 1
Node 2
Node 1
Node 2