Cc-Link Module Access Function - Mitsubishi MELSEC-Q Series User Manual

4
FUNCTIONS

4.3 CC-Link Module Access Function

(1) CC-Link module access function
<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 */
ret = mdSend(path, stno, devtyp, devno, size, data);
or
ret = QBF_ToBuf(path, iono, offset, size, data, datasize);
C Controller module
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.
(2) Functions
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.
CC-Link master station
Figure 4.2 Access via CC-Link
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:
• Accessible range via CC-Link:
Programmable
controller CPU
1)
Device data
2)
Access via CC-Link
Remote I/O station
PW L RUN L ERR X0 1 2 3 Y8 9 A B
STATION NO.
40 20 10 8 4 2 1 4 2 1
ON
MITSUBISHI A
J65SBTB32-8DT2
DA DG +24V 24G X0 X1 X2 X3 Y8 Y9 YA
DB SLD (FG) COM+ COM- COM+ COM- COM+ COM+ COM+ COM+ DC24G
Section 10.3.12 (2)
4.3 CC-Link Module Access Function
Local station
B RATE
YB DC24V
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