6.3.4.7 FIEF-SHIFT/PREVIOUS FIEF
Depending on the current panel operating mode, pressing the REF
(reference) key causes one of several actions:
Enter Mode - While in the Enter mode, pressing the REF key, after
entering a reference number into the DATA display (via the keyboard),
causes that reference number to appear in the REF display. The DATA
display continuously shows the data or status of the new reference
number.
Examine Mode
- Pressing the REF key while in the EXAMINE mode
causes the reference number in the REF display to increment by one, and
the data or state of the new reference number to appear in the DATA
display. Entry of an invalid reference number causes an error code to
appear in the DATA display.
In the SHIFT mode, pressing the REF key causes the PREVIOUS REF
command to occur. This decrements the reference number viewed in the
REF display by one, and the data or state of the new reference number
appears in the DATA display.
The programming panel is aware of the controller’s memory size and
automatically provides wraparound if incrementing or decrementing the
reference number exceeds the maximum limit. Any reference number may
be used. For sequencer reference numbers, incrementing, decrementing,
and wraparound effect only the two righthand digits.
If the input logic element being examined is disabled, the DATA display
indicates the condition by placing a small “d” in front of the “ON” or
“OFF” mnemonic. Output coils will show only their ON or OFF condition
and not if they are disabled. The disabled condition of a coil can be
determined in EXAMINE mode when the cursor is on the coil.
While examining a reference, the power flow display and the Element
Status light continue to show the power condition at the cursor position
previous to the initiation of the REF mode. The Element Type display goes
blank when the REF key is pressed.
6.3.4.8 NET-SHIFT/PREVIOUS NET
The NETwork key is used to access a desired network. This key operates
in any of the following three modes: Pressing the NET key causes the next
network in sequence to be selected, displays the new power flow
information, and increments the NETWORK display number. If the last
network is being viewed and the NET key is pressed, the first network (1)
is selected (wraparound).
Any network can be displayed by entering a valid network number (1-18)
into the DATA display and then pressing the NET key. The network
requested appears in the POWER FLOW display and the new network
number appears in the NETWORK display.
Pressing the NET key while in the SHIFT mode causes the previous
network in sequence to be selected, and displays the new power flow
information, and decrements the NETWORK display number. If the present
network viewed is network 1 and SHIFT/NET is pressed, the last network
is accessed (wraparound).
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