Mitsubishi FX2N-16CCL-M, User Manual

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FX2N-16CCL-M CC-Link System Master Block Functions 5
5-15
5.6 Error Invalid Station Function
This function sets remote stations in which data link is disabled by power OFF, etc. as error
invalid ones so that such stations are not handled as data link faulty stations.
Be careful, however, for errors will not be detected at all in stations set as invalid
stations.
1) Setting method
Specify invalid stations using the parameter BFM#14
H
Set to ON the bits corresponding to the station numbers of the stations to be made invalid.
However, for a remote station occupying two or more stations, set to ON only the bit
corresponding to the station number set by the station number setting switch in the module.
The table below shows the buffer memory configuration. (Numbers 1 to 15 indicate station
numbers)
2) Setting example
a) System configuration example
When the remote I/O station No. 3 and the remote device station No. 7 are made invalid
in the system in which two remote I/O stations and three remote device stations are con-
nected
b) Buffer memory setting example
Set to ON the 2nd bit corresponding to the station No. 3 and the 6th bit corresponding to
the station No. 7. (Set "44
H
" to the BFM#14H.)
Point
If a remote station set as invalid station is also set as reserved station, the reserved
station function has the priority.
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
BFM# 14
H
⎯
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
BFM# 14
H
0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0
0 0 4 4
Master
station
Station No. 1
Remote I/O
station (occupies
1 station)
Station No. 3
Modules to be set as error invalid stations
Remote
device station
(occupies 2
stations) Remote I/O
station (occupies
1 station)
Station No. 4
Remote
device station
(occupies 2
stations)
Station No. 5
Remote
device station
(occupies 4
stations)
Station No. 7