82 Function Description
WAGO-I/O-SYSTEM 750
750-325 CC-Link Fieldbus Coupler
Manual
Version 2.0.1
7.3.2
Assigning the I/O Module Data to the CC-Link Address
Range
Data is exchanged between the CC-Link master and I/O modules via the CC-Link
address range shown above in the section “Process Data Structure”.
Specific data is accessed via the respective CC-Link register address in the
“Word” format.
However, because the I/O module data is byte-aligned by channel, it is possible
that data from an I/O module consists of different data types (e.g., 1-byte value
and 2-byte value) and in a word not corresponding its data type, overwriting the
CC-Ling register limits. It is also possible for there to be mixed data from different
I/O module channels in one register.
Observe process data quantity!
For the setup and number of input and output bits or bytes of the individual I/O
modules, please refer to the corresponding descriptions of the I/O modules.
This and the type assignment of I/O modules are available in the section
“I/O Modules” >> “Process Data Configuration for CC-Link”.
The “k” index in the following tables point to the next available Link input/output
(RX/RY) or to the next available Link register (RWr/RWw).
7.3.2.1 Example Type 1 – Digital Input
Example for data exchange of the process data of a 2-channel digital input
module 750-400.
Table 39: Example Data Transfer Type 1
Link Input
Signal name
Link Output
Signal name
RXn(k)
DI Channel 1
RXn(k+1)
DI Channel 1
7.3.2.2 Example Type 6 – 2-channel digital input; Acknowledgement;
Diagnostics
Example for data exchange of the process data of a 2-channel digital input
module with diagnostics and acknowledge 750-418.
