Buffer Memory [Bfm #32 To #95]; Cautions On Use - Mitsubishi FX3UC SERIES User Manual

FX Series Programmable Controllers
3UC
User's Manual - Hardware Edition

9.13.2 Buffer memory [BFM #32 to #95]

1. Assignment of Buffer Memory
Buffer memory No.
BFM #32(20h)
BFM #33(21h)
BFM #95(5Fh)
2. Bit assignment of the Detailed remote station information
Each bit of the buffer memory shown in the above table is assigned as follows.
Bit
b0
b1
b2 Number of I/O points
b3
b4
b5 to b7 (Setting prohibited)
b8
b9
b10 RD station flag
b11 Head station flag
b12 Input filter setting
b13 Output hold/clear setting
b14 (Setting prohibited)
b15 Reserved station flag

9.13.3 Cautions on use

1. If remote stations are connected in places for a reserved station
The connected remote stations can operate with the existing setting, but errors such as wire breakage will not
be detected.
After connecting remote additional stations, execute automatic I/O number assignment in the CONFIG mode
again. The system will update the detailed remote station information, and the new remote stations will be
able to be used normally (errors will be detected).
2. If a remote station is not connected (Reserved station flag b15 = OFF)
If a remote station is not connected to an edited station number, errors such as wire breakage error will occur.
Function
Point 1
b0
b1
b2
b3
b4
Input flag
Output flag
This is the head station.
This is specified as a reserved
station.
9 CC-Link/LT Built-in master ability (Only FX3UC-32MT-LT)
9.13 Editing the detailed remote station information
Description
Remote station information area for station No.1
Remote station information area for station No.2
Remote station information area for station No.64
1(ON)
2 3 4 5 6 7
1 0 1 0 1 0 1
0 1 1 0 0 1 1
0 0 0 1 1 1 1
0 0 0 0 0 0 0
0 0 0 0 0 0 0
Set these bits to 0.
Input is given.
Output is given.
It is a RD station.
High-speed input
HOLD
Set these bits to 0.
This is not specified as a reserved
station.
0(OFF)
8 9 10 11 12 13 14 15 16
0 1 0 1 0 1 0 1
0 0 1 1 0 0 1 1
0 0 0 0 1 1 1 1
1 1 1 1 1 1 1 1
0 0 0 0 0 0 0 0
Input is not given.
Output is not given.
It is not a RD station.
This is not the head station.
General-purpose input
CLEAR
1
2
3
0
4
0
0
0
1
5
6
7
8
9
10
299