D
Gateway
function Guide
D-4
3. I/O interface specifications
This section describes the I/O interface specifications of the gateway function.
3.1 Configuration
In the gateway connections, the first controller (gateway) with the field network option installed has I/O
interfaces for this controller and daisy-chained controllers to distribute the input/output information to other
daisy-chained controllers.
Therefore, each I/O interface is identical to that of the single controller without connecting the gateway when
viewed from the host unit. So, the same control as that used when multiple controllers are connected can be
performed through the field network.
Host unit
(Applicable to field network)
Multiple controllers are connected through the field network.
Controller #1
Controller #2
Field network
Controller #3
Controller #4
I/O #1
I/O #2
I/O #3
I/O #4
23D03-M0-00
Gateway connections
Controller #1
Controller #2
Controller #3
Controller #4
Field network
I/O #1
I/O #2
I/O #3
I/O #4
Host unit
(Applicable to field network)
23D04-M0-00
c
CAutIoN
the setting file prepared for the field network is different from that used when the single controller without
connecting the gateway is operated individually.