3.3 Commissioning
405
7SA522 Manual
C53000-G1176-C155-3
3.3.4 Checking the Binary Inputs and Outputs
Prefacing Remarks The binary inputs, outputs, and LEDs of a SIPROTEC
®
4 device can be individually
and precisely controlled in DIGSI
®
4. This feature is used, for example, to verify control
wiring from the device to plant equipment during commissioning. This test option
should however definitely not be used while the device is in service on a “live” system.
DANGER!
Sending or receiving annunciations via the system interface by means of the
test function is a real information exchange between the SIPROTEC device and
the control center. Connected operating equipment such as circuit breakers or
disconnectors can be switched in this way!
Non-observance of the following measure will result in death, severe personal injury
or substantial property damage.
Equipment used to allow switching such as circuit breakers or disconnectors is to be
checked only during commissioning. Do not under any circumstances check them by
means of the testing mode during “real” operation performing transmission and recep-
tion of messages via the system interface.
Note
After finishing the hardware tests, the device will make an initial startup. Thereby, all
inidication buffers are erased. If required, these buffers should be extracted with
DIGSI
®
prior to the test.
The hardware test can be done using DIGSI
®
in the Online operating mode:
• Open the Online directory by double-clicking; the operating functions for the device
appear.
•Click on Test; the function selection appears in the right half of the window.
• Double-click in the list view on Hardware Test. The dialog box of the same name
opens (see the following Figure).
Structure of the
Dialog Box
The dialog box is classified into three groups: BI for binary inputs, REL for output
relays, and LED for light-emitting diodes. On the left of each group is an accordingly
labelled panel. By double-clicking these panels you can show or hide the individual in-
formation of the selected group.
In the column Status the present (physical) state of the hardware component is dis-
played. It is displayed symbolically. The physical scheduled states of the binary inputs
and outputs are indicated by an open or closed switch symbol, the LEDs by a dark or
illuminated LED symbol.
The opposite state of each element is displayed in the column Scheduled. The display
is in plain text.
The right-most column indicates the commands or messages that are configured
(masked) to the hardware components.
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