Mitsubishi FX2N-16CCL-M, Руководство пользователя

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Programming 9
9-1
9. Programming
9.1 Precautions in Programming
This section describes precautions in creating a program.
1) Word information of the remote device station is processed in FX
2N
-16CCL-M in one word
unit. Therefore, trying to transfer double word (32-bit data) between FX
2N
-16CCL-M and
PLC main unit may result in an error as upper word (16-bit data) and lower word (16-bit
data) may not be processed appropriately due to time lag in link-scanning.
2) Create a read program from the remote input RX (addresses E0
H
to FF
H
) after data link
startup.
Create a write program to the remote output RY (addresses 160
H
to 17F
H
) at the end of the
entire program.
3) Create such a program that read of received data and write of transmission data are
executed after the host station becomes the data link status (after the BFM#A
H
b1 turns
ON).
Parameter setting
Data link startup
Read from remote input (RX)
Write to remote output (RY)
··········
M M M
M0 N0 MC
Program for communication
N0 MCR
Input of
module error
(BFM#A
H
b0)
Input of module
ready
(BFM#A
H
b15)
Input of data link
status in host station
(BFM#A
H
b1)
FX2N-16CCL-M CC-Link System Master Block