13
CPU Unit Indicators The following figure shows the indicators that are located on the front panel of
the three CPU Unit models.
RUN indicator (green):
Lights when the PC is
operating normally.
POWER (green):
Lights when power is
supplied to the CPU
Unit.
OUT INHIBIT (red):
Lights when the Load OFF
flag (SR bit 25215) turns ON,
at which time all the outputs
are turned OFF.
ALARM (flashes red):
Flashes if an error occurs that
does not stop the CPU Unit.
ERROR (solid red):
Lights if an error occurs that stops the
CPU Unit, at which time the RUN indi-
cator turns OFF and the outputs are
turned OFF.
All three CPU Unit models are equipped with two connectors for peripheral de-
vices. One is used for the Handheld Programming Console or the Data Access
Console; the other is used for the CPU Unit-mounting Programming Console.
The C200H-CPU31-E, however, has a third connector that is used for connect-
ing the SYSMAC LINK Unit or the SYSMAC NET Link Unit to the CPU Unit.
To connect the Handheld Programming Console to the CPU Unit, a Connecting
Cable is required, as shown in the following diagram.
Note If you are using the SYSMAC LINK Unit or SYSMAC NET Link Unit in your sys-
tem, you must use model C200H-CPU31-E as the CPU Unit. The other two mod-
els mentioned above are not equipped with the appropriate connectors.
Peripheral Device
Connectors
CPU Units Section 2-2
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