Example Of I/O No. Assignment - Mitsubishi Electric MELSEC FX2N-64CL-M User Manual

FX2N-64CL-M CC-Link/LT Master Block
8.2

Example of I/O No. assignment

This paragraph describes I/O No. assignment in the configuration example shown below.
PLC
FX -32MT
2N
When the FX
64CL-M checks for connected remote stations, and assigns the I/O No. to each remote station.
Though the I/O No. is equivalent between the 4-point mode and 16-point mode, the station No.
of each remote station is different between the 4-point mode and 16-point mode.
In the configuration example above, the link scan time is longer in the 16-point mode than in
the 4-point mode.
(For the details of the link scan, refer to "9. Data Link Processing Time".)
Station No.
4-point mode
Station No.1
Station No.2
Station No.3
Station No.7
Station No.8
*1 With regard to X and Y, 8 points are occupied as 1 block. As a result, if the number of I/O
points occupied by a station is a number which cannot be divided by "8", unused Nos. are
generated.
In the configuration example above, the I/O Nos. are assigned as shown below.
X000 to X037 (octal)
PLC
FX -32MT
2N
Y000 to Y017 (octal)
I/O extension Master block
block
FX -16EX FX
2N
-64CL-M is set to the CONFIG mode and the PLC is powered ON, the FX
2N
Number of points
16-point mode
Station No.1
Station No.2
Station No.3
Station No.4
Station No.5
*1
Unused I/O
I/O extension Master block
block
FX -16EX FX
2N
X040 to X043 Y020 to Y021 X044 to X063 X064 to X065
-64CL-M
2N
Station No. when the 16-point mode is selected
4 input 2 output 16 input
points points
I/O assignment (X)
4 input points
2 output points
16 input points
2 input points/
2 output points
4 input points
-64CL-M
2N
Station No. when the 16-point mode is selected
Station Station
No.1 No. 2
4 input 2 output
points points
Assignment of I/O Nos. 8
2 I/O 4 input
points points points
I/O assignment (Y)
X040 to X043
--
X044 to X063
X064 to X065
X066 to X071
X072 to X077
Station Station
No.3 No. 4
16 input 2 I/O
points points
Y022 to Y023
-
2N
--
Y020 to Y021
--
Y022 to Y023
--
Y024 to Y027
Station
No.5
4 input
points
X066 to X071
8-2