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3 INSTALLATION AND MODULE MOUNTING
The table below shows the maximum numbers of I/O modules of each model that can be mounted
in an 8-slot mount base.
LWA400 to LWA404, LWA421 to LWA423
Note: An I/O module(s) not listed above may be mounted on a mount base on which an
I/O module(s) listed above are mounted. In these cases, the total of the
consumption currents of all the I/O modules mounted on the mount base must not
exceed the rated output current of the power supply module.
3.8.2 Module mounting
When mounting analog I/O modules (LWAxxx, PANxxx, and/or PAFxxx) and digital I/O
modules (LWIxxx and/or LWOxxx) together on the same mount base, separate the two different
types of I/O modules from each other and mount them on the mount base, leaving one slot empty
between the two types, as shown below. The reason for this is to avoid any influence of the
digital I/O module wiring on the analog I/O modules.
Model
LWI400
LWI450, LWI460, LWI470
LWI600
LWI650
LWO400
LWO450, LWO460
LWO600, LWO610
LWO650
LWO670
LWA430, LWA435
LWA500, LWA501
LWA450, LWA460
LWA550, LWA551
LWA560
LWC400, LWC401, LWC402
PS
ST
Leave one slot empty between the two different types of
I/O modules
Maximum number of I/O modules
mountable on mount base
LWV450, LWV550
Analog I/O
Digital I/O
modules
modules
3-14
LWV460
8
8
8
8
8
8
8
8
4
4
8
8
6
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
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Troubleshooting
