4
FUNCTIONS
4.3 CC-Link Module Access Function
4 - 6
1
OVERVIEW
2
SYSTEM
CONFIGURATION
3
SPECIFICATIONS
4
FUNCTIONS
5
SETTING AND
PROCEDURES
6
I/O NUMBER
ASSIGNMENT
7
MEMORIES AND
FILES
8
INSTALLING /
UNINSTALLING
4.3 CC-Link Module Access Function
(1) CC-Link module access function
This function allows access to each station and programmable controller CPUs
connected to the CC-Link via a CC-Link module controlled by the C Controller
module.
Create the user program of the C Controller module using the MELSEC data link
functions or bus interface functions.
(2) Functions
The MELSEC data link functions or bus interface functions are available for the CC-
Link module access function.
• MELSEC data link functions and bus interface functions: Chapter 10
• Accessible range via CC-Link: Section 10.3.12 (2)
Figure 4.2 Access via CC-Link
COM-COM+COM-COM+ COM+ COM+ COM+ COM+ DC24G
DC24VYBYAY9Y8X3X2X1X0
4020108421421
B RATESTATION NO.
ON
PW L RUN L ERR X0 1 2 3 Y8 9 A B
A
J65SBTB32-8DT2
DA DG +24V 24G
DB SLD (FG)
MITSUBISHI
ret = mdSend(path, stno, devtyp, devno, size, data);
ret = QBF_ToBuf(path, iono, offset, size, data, datasize);
<Example>
C Controller module
/* Reads device data of the other station programmable controller CPU */
ret = mdReceive(path, stno, devtyp, devno, size, data);
/* Writes data to its own station RY and outputs it to the remote I/O module */
or
2)
1)
C Controller module
CC-Link master station
Access via CC-Link
Remote I/O station
Local station
Programmable
controller CPU
Device data
1) Reads the device data of the other station programmable
controller CPU to the C Controller module via the CC-
Link module.
2) Writes data to RY of the CC-Link module itself and outputs
it to the remote I/O module.