Bfm#25] Communication Status; Bfm#26] Cc-Link Model Code - Mitsubishi FX3U-64CCL User Manual

FX -64CCL User's Manual
3U
7.2.4

[BFM#25] Communication status

This buffer memory address stores the communication status of CC-Link communication data as ON/OFF
information of in bits 0 to 15.
The information on the master station PLC is valid only while communication is executed in the link.
bit
0 CRC error
1 Timeout error
2 Reserved
3 Reserved
4 Reserved
5 Reserved
6 Reserved
7
Link execution
8
Master PLC RUN status
9
Master PLC error status
*1
10
Refresh
11 Reserved
12 Reserved
14 13 Protocol version
15 Reserved
*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.
7.2.5

[BFM#26] CC-Link model code

The CC-Link model code is stored as follows:
CC-Link coded identification (PLC type)
H01
BFM#25 Communication status
Description
Information for
64CCL
*1
*1
*1
Information for the
master station
BFM#26 CC-Link model code
bit15 to 8
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.
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
The line may be shut down, the system may go down,
or the power may be turned OFF.
0 (Not used)
0 (Not used)
0 (Not used)
0 (Not used)
0 (Not used)
0: Link non-execution
1: Link execution ( L RUN is ON )
This bit is ON during data link with 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.
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". This bit
operates only during normal data link operation. For details, refer to
the master unit manual.
0: With no refresh
1: With refresh
This bit operates only during normal data link operation.
0 (Not used)
0 (Not used)
The CC-Link protocol version is stored.
00: Ver.1
01: Ver.2
0 (Not used)
bit7 to 0
CC-Link software version
H01
7 Buffer Memory
7.2 Buffer memory details
Explanation
1
2
3
4
5
6
7
8
9
A
37