Appendix B: Differences with FX2N-32CCL
Appendix B-3 [BFM#25] Communication status comparison table
66
FX
3U
-64CCL User's Manual
Appendix B-3 [BFM#25] Communication status comparison table
BFM#25 the difference in 64CCL and FX
2N
-32CCL of the communication status is as follows.
*1.
When "Link execution (bit 7)" is OFF, the "Master PLC RUN status (bit 8)", "Master PLC error status
(bit 9)" and "Refresh (bit 10)" bits hold their final values from the link execution.
BFM#25 Communication status
bit
Description of 64CCL
Explanation of 64CCL
BFM#25 of
FX
2N
-32CCL
0
CRC error
Information for the
64CCL
0 : The receive data does not have a CRC error.
1 : The receive data has a CRC error.
This bit turns ON when there is a discrepancy with the
CRC value due to unwanted noise or other disruptions
affecting the transmission path.
Mentioned similar
1
Timeout error
0 : Normal
1 : Timeout error
This error occurs when the next refresh is not given
during the execution of a current refresh.
This bit turns ON when the transmission data send time
exceeds the fixed time for normal reception completion.
The line may be shut down, the system may go down,
or the power may be turned OFF.
Mentioned similar
2
Reserved
0 (Not used)
Reserved
3
Reserved
0 (Not used)
Reserved
4
Reserved
0 (Not used)
Reserved
5
Reserved
0 (Not used)
Reserved
6
Reserved
0 (Not used)
Mentioned similar
7
Link execution
0 : Link non-execution*1
1 : Link execution ( L RUN is ON )
This bit is ON during data link with the master station.
Mentioned similar
8
Master PLC RUN
status
Information for the
master station
0 : During STOP
1 : During RUN
This bit is ON when the PLC connected to the master
station is in RUN mode. This bit operates only during
normal data link operation.
Mentioned similar
9
Master PLC error
status
0 : Normal
1 : Abnormal
This bit turns ON when the PLC connected to the master
station has an error. The status is only valid when the
master station CPU's designated operation condition is
shown as "resuming." For details, refer to the master unit
manual.
Reserved
10
Refresh
0 : With no refresh
1 : With refresh
Reserved
11
Reserved
0 (Not used)
Reserved
12
Reserved
0 (Not used)
Reserved
14 13
Protocol version
The CC-Link protocol version is stored.
00 : Ver.1
01 : Ver.2
Reserved
15
Reserved
0 (Not used)
Reserved
Summary of Contents for FX3U-64CCL
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Page 11: ...5 FX3U 64CCL User s Manual Table of Contents Warranty 69 Revised History 70 ...
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