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Each sub-menu uses three windows: the upper window lists sub-menu entries, two
others indicate the allocation status of the eight discrete inputs for the selected input
group. Discrete inputs are numbered from the left to right: inputs #1 through #4 - in
the central window, and inputs #5 through #8 - in the lower window. The input state
of 0 indicates that the input is not allocated, and the state of 1 - that the input is
allocated to the group. Each discrete input can be allocated individually. For
information on discrete input operation, refer to Section 4.8.
To select and view an allocation group setup:
Ä From the upper window, scroll through sub-menus with the up/down arrow keys
until the label of the desired entry appears.
To change the discrete input allocation:
Ä Press
to choose the desired discrete input.
SELECT
Ä Set the input allocation status with the up/down arrow keys.
Ä Press
to return to the upper window.
ENTER
To quit the menu:
Ä From the upper window, press
The illustrations above show an example of discrete inputs allocation. Here, inputs
1-5 are allocated as status inputs, and inputs 7-8 are allocated as pulse inputs.
Status inputs 1-2 are allocated to the 4-channel multiplexed analog output selector,
and pulse input 8 is allocated for sensing the external synchronization pulse to use
as a reference for demand interval measurements.
TROUBLESHOOTING
If your setting is not accepted by the instrument, one of the following might be the
cause:
• Make sure the status inputs and pulse inputs are not overlapping.
• If you are allocating inputs for the analog output selector, check whether they
were allocated as status inputs.
• If you are trying to allocate input for the external synchronization pulse, check
whether it was allocated as a pulse input.
NOTE
In the event that you re-allocate the discrete input allocated previously to the
analog output selector or external synchronization pulse, the prior allocation will be
automatically disabled.
40
to return to the
ENTER
menu.
MAIN
Operating The PM295
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