Honeywell 5704, Руководство по эксплуатации

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MAN0448_Issue 13_01-2010 5704 Control System
005704-M-5001 A03249
CHAPTER 6 - OPERATING INSTRUCTIONS
3.4.2 Channel Select
Once a card has been selected, a particular channel can then be
selected by using the ( ) and ( ) push-buttons on the Engineering
Card. The selected channel number will be shown on the message
display.
3.5 Deselect
3.5.1 Card Deselect
To desele ct a selected channel card, briefly push its front panel RESET/
SElECT push-button.
The channel card will be deselected and any user operations in progress
which have not been confirmed will be cancelled. It should be noted
that the channel card will not be reset unless the RESET/SElECT
push-button is again momentarily pushed.
3.5.2 Card Deselect with Channel Display lock
If the control card has been configured for a sequential channel display
mode, it is possible to lock the display to a particular channel by
deselecting the card using the push-button.
To lock the display to a particular channel:
(1)
Select the required channel as indicated in Section 3.4.2.
(2) Briefly press the push-button and the select icon will clear.
The channel display will remain locked to the desired channel until the
card is next reset or selected.
4. ENGINEERING CARD
4.1 General
The Engineering Card push-button functions will only operate if a
channel card is selected. See Section 3.3.
Without the En
gineering Key fitted to the Engineering Card, the following
Engineering Card push-buttons will not be available:
Inhibit
Zero
Span
1st Span
If any of these push-buttons are pushed, a locked symbol ( ) will be
briefly displayed on the selected channel card message display.