Chapter 3 Operation
62
3.2 Receiving and Forwarding of I/O Signals Necessary for Operation
The I/O port can deliver the data with the MSEL controller and external signals through
interface.
One port can exchange data for one contact (1 bit).
Data is exchanged via PIOs (24V I/Os) or over a fieldbus.
Either a PIO or fieldbus can connect to each port at a time.
Whether to use PIO or fieldbus is set by a parameter.
indicates flow of data.
Refer to Section 2.2.5 for the PIO interface.
For the each fieldbus, refer to each instruction manual.
Host Controller
I/O unit
Fieldbus
master unit
MSEL Controller
I/O Ports
I/O interface
• Standard I/O
• Extension I/O
Fieldbus
interface
• DeviceNet
• CC-Link
• PROFIBUS-DP
• EtherNet/IP
Input
Port
Output
Port
16 316
17 317
18 318
19 319
20 320
21 321
22 322
23 323
24 324
25 325
26 326
27 327
28 328
29 329
30 330
31 331
32
332
Data exchange
Data exchange
Connected
internally.
(Assignments
are set by
parameters.)
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