Communication In Compound System - Mitsubishi FX2N-16CCL-M User Manual

FX2N-16CCL-M CC-Link System Master Block
5.4

Communication in Compound System

This section describes the overview of the communication in the system in which remote I/O
stations and remote device stations exist together.
SET
SET
[Data link startup]
1) The PLC sets to ON the write refresh command (BFM#A
remote output (RY) effective.
When the write refresh command (BFM#A
treated as "0 (OFF)".
2) The PLC sets to ON the write data link startup (BFM#A
start the data link.
However, parameters should be registered in the EEPROM in advance.
When the data link starts normally, the read data link status in host station (BFM#A
turns ON.
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
1)
M
BFM#A b0
H
2)
Data link startup by
M
EEPROM parameters
BFM#A b8
H
4)
FROM
4)
FROM
5)
TO
5)
TO
Remote register (RWw)
7)
TO
10)
FROM
Point
Master station
Refresh command
Buffer memory
Remote input (RX)
3)
Receive area for data
from remote I/O station
(station No. 1)
3)
Receive area for data
from remote device
station (station No. 2)
Remote output (RY)
6)
Transmission area for
data to remote I/O
station (station No. 1)
Transmission area for
data to remote device
station (station No. 2)
Prohibited to use
(station No. 1)
Transmission area for
data to remote device
station (station No. 2)
Remote register (RWr)
Prohibited to use
(station No. 1)
9)
Receive area for data
from remote device
station (station No. 2)
b0) is OFF, all data of the remote output (RY) is
H
Remote I/O station Remote device station
(station No. 1) (station No. 2)
Input
Remote input
Output
6)
Remote output
8)
Remote register
Remote register
b0), and makes the data of the
H
b8) by EEPROM parameters to
H
Functions 5
(RX)
(RY)
(RWw)
(RWr)
b1)
H
5-9