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72
Troubleshooting with Status Area Functions
Section 5-2
Flag Allocation in Multi-
level Mode
Troubleshooting with
Status Flags
Word
(N = Unit number)
PC Link Error Flags
PLC Run Flags
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
1500 + 25
×
N
Link
#1
15
14
13
12
11
10
9
8
15
14
13
12
11
10
9
8
1500 + 25
×
N + 1
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
1500 + 25
×
N + 2
Link
#0
15
14
13
12
11
10
9
8
15
14
13
12
11
10
9
8
1500 + 25
×
N + 3
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Flag status
Probable cause
Remedy
PLC Run Flag OFF
The PC Link Unit’s switch set-
tings are incorrect.
Check settings such as the level/link number, node address, and
number of LR bits.
Confirm that the PC Link Unit’s node address is not set on another
node in the PC Link.
Confirm that all of the nodes in the PC Link have the same level/
link number setting.
An error occurred in the PLC
in which the affected Unit is
mounted.
Refer to the PLC’s Operating Manual to clear the error.
If the error recurs, replace the PLC.
The PLC is stopped.
Switch the PLC to RUN mode.
PC Link Error Flag
ON
The PC Link Unit’s switch set-
tings are incorrect.
Check settings such as the level/link number, node address, and
number of LR bits.
Confirm that the PC Link Unit’s node address is not set on another
node in the PC Link.
The cable is disconnected or
damaged.
Check the connections and the cable itself.
An error occurred in the
affected Unit.
Check the affected Unit’s LED Indicators, identify the error using
the table in
5-1 Troubleshooting with LED Indicators
, and correct
the error.
A communications error
occurred due to noise.
Check the length of the branch lines and main line.
Check the Terminating Resistance switch settings.
Separate the communications cables from power/high voltage
lines.
Содержание CVM1 Series
Страница 1: ...Cat No W434 E1 01 SYSMAC CVM1 CV Series CVM1 LK401 PC Link Unit This manual is PDF file only...
Страница 2: ...CVM1 LK401 PC Link Unit Operation Manual Produced July 2004...
Страница 3: ...iv...
Страница 5: ...vi...
Страница 41: ...26 Differences from Earlier PC Link Units Section 2 6...
Страница 77: ...62 Replacement Checklists Section 3 6...
Страница 95: ...80 Link Adapter Specifications Appendix B...
Страница 101: ...86 PC Link System I O Response Time Appendix C...
Страница 103: ...88 PC Link Settings and Status Areas Appendix D...
Страница 105: ...Revision History 90...