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Control During Operation
:
From PC with
®
DIGSI
4
7.4.3
Set Status
From the
DeviceFront
7-52
A safety inquiry appears: " Are you sure? " Provided manual overwriting is allowed,
a response of " YES " results in an appropriate message on the display. Acknowledge
the message by pressing the
Manual overwriting is cancelled if the process is restricted because, for example, " in-
put ignored " is not set (see Sub-section 7.4.3). Manual overwriting is also canceled
if the user aborts the procedure. The display provides an appropriate message if man-
ual overwriting is canceled. Acknowledge the message by pressing the
Return to the BREAKER/SWITCH sub-menu using the
pressing the
key.
MENU
For safety reasons, manual overwriting can only be executed locally using the keypad
on the front panel of the device. The feature is not available in DIGSI
A feature of the 7SA6 that is especially useful during testing and commissioning of the
device is the capability of temporarily removing the coupling between a switching de-
vice and the 7SA6, or between the SCADA and the 7SA6, without physically discon-
necting the equipment. This type of separation is also necessary, for instance, if a
switch position feedback message is not functioning properly (refer to Sub-section
7.4.2). The menu item SET STATUS is used to perform the decoupling.
The menu displays a list of all planned switching devices and associated status infor-
mation identified by a letter. The letters have the following meanings:
• T Device is tagged (manually overwritten).
• I Input ignored, which means the acquisition of an input status is de-coupled from
the process (from the switch-gear).
• B Blocked, which means data transmissions to the central device (or SCADAS-
CADA) are blocked.
• C Chatter block active, which means, because of frequent message changes, the
chatter block was set.
• O Output block active, which means the command output is de-coupled from the
process (from the system).
• – None of the listed limitations is in effect.
Note:
Input ignored ( I ) only works for physical inputs! Do not set "input ignored" for indica-
tions created by CFC and allocated to the operating level "Manual Overwriting". Dif-
ferent to physical inputs - they do not provoke decoupling from the system.
With a device ready for operation, first press the
key, select the menu item Control and go to editing the control func-
Using the
key. The selection CONTROL appears.
tions with the
key again.
ENTER
key. The MAIN MENU appears.
MENU
key.
ENTER
key, or the MAIN MENU by
®
4.
7SA6 Manual
C53000-G1176-C156-2
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