Mitsubishi FX2N-16CCL-M, User Manual

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FX2N-16CCL-M CC-Link System Master Block Functions 5
5-2
5.2 Communication between Master Station and Remote I/O Stations
This section describes the overview of the communication between the master station and
remote I/O stations.
[Data link startup]
1) The PLC sets to ON the write refresh command (BFM#A
H
b0), and makes the data of the
remote output (RY) effective.
When the write refresh command (BFM#A
H
b0) is OFF, all data of the remote output (RY) is
treated as "0 (OFF)".
2) The PLC sets to ON the write data link startup by EEPROM parameters (BFM#A
H
b8) to
start the data link.
However, parameters should be registered to the EEPROM in advance.
When the data link starts normally, the read data link status in host station (BFM#A
H
b1)
turns ON.
Point
The data link can be started also from the parameters written in the "parameter
information area" in the buffer memory. (Refer to Chapter 7.)
PLC Master station
Refresh command
Data link startup by
EEPROM parameters
Remote I/O station
SET
FROM
TO
M
M
BFM#A
H
b0
SET
Buffer memory
Remote input
(RX)
Remote output
(RY)
BFM#A
H
b8
Input Link scan
Output Link scan
➀
➁
➃
➄
➂
➅