Mitsubishi FX3UC Series, Руководство пользователя

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316
FX
3UC
Series Programmable Controllers
User’s Manual - Hardware Edition
9 CC-Link/LT Built-in master ability (Only FX3UC-32MT-LT)
9.18 Details of buffer memory
FX
3UC
Series Programmable Controllers
User’s Manual - Hardware Edition
9.18.13
Detailed remote station information [BFM #32 (20h) to #95 (5Fh)]
The information (I/O type, number of points) on remote stations is stored here.
In CONFIG mode, the contents of these BFMs can be changed.
→
For details on the changing method, refer to Section "9.13 Editing the detailed remote station
information".
1.
Buffer memory assignment
2.
Description of detailed remote station information [BFM #32 (20h) to #95 (5Fh)]
3. Number of I/O points (b4 to b0)
The number of I/O points used in the BFM dependent station number is stored here.
The maximum number of points is 4 or 16 in accordance with the number of points per station set by the DIP
switch for operation setting.
When a remote I/O unit with 16 I/O points is used in 4-point mode, the number of points per buffer memory is
4, and the I/O points of the remote I/O unit are assigned to four buffer memories.
In the case of a composite I/O unit, the larger quantity between the number of input points and the number of
output points is stored here.
In the case of a remote device station, 16 points are stored here.
4. Input flag (b8) and output flag (b9)
The type of the corresponding remote module (input unit, output unit, composite I/O unit or remote device
station) is stored here.
5. RD station flag (b10)
When the station is a RD station, "1 (ON)" is stored.
When one unit occupies two or more stations, this bit is set to ON in the corresponding stations.
Buffer memory No. Description
BFM #32 (20h) Remote station information area for the station No.1
BFM #33 (21h) Remote station information area for the station No.2
... ...
BFM #95 (5Fh) Remote station information area for the station No.64
Bit Function 0(OFF) 1(ON)
b0
Number of I/O points
b1
b2
b3
b4
b5 to b7 (Setting prohibited) Set these bits to 0.
b8 Input flag Input is not given. Input is given.
b9 Output flag Output is not given. Output is given.
b10 RD station flag It is not a RD station. It is a RD station.
b11 Head station flag This is not the head station. This is the head station.
b12 Input filter setting General-purpose input High-speed input
b13 Output hold/clear setting CLEAR HOLD
b14 (Setting prohibited) Set these bits to 0.
b15 Reserved station flag This is specified as a reserved station.
This is not specified as a reserved
station.
b9: Output flag b8: Input flag Unit type
0 1 Input unit
1 0 Output unit
1 1 Composite I/O unit or remote device station
Points 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
b0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
b1 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0
b2 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0
b3 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0
b4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1