Checking The Switching States Of The Binary Inputs/Outputs - Siemens SIPROTEC 7SD610 Manual

3.3.4

Checking the switching states of the binary Inputs/Outputs

Prefacing Remarks
The binary inputs, outputs, and LEDs of a SIPROTEC 4 device can be individually and precisely controlled in
DIGSI. This feature is used to verify control wiring from the device to plant equipment (operational checks)
during commissioning. This test option should however definitely „not" be used while the device is in service
on a live system.
DANGER!
A changing of switching states by means of the test function causes a real change of the operating
state at the SIPROTEC 4 device. Connected operating equipment such as circuit breakers or discon-
nectors will 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 com-
missioning. Do not under any circumstances check them by means of the testing mode during „real" operation
performing transmission and reception of messages via the system interface.
Note
After termination of the hardware test the device will reboot. Thereby, all annunciation buffers are erased. If
required, these buffers should be extracted with DIGSI prior to the test.
The hardware test can be carried out 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 Device inputs and outputs. The dialog box with this name is opened (see
Figure 3-17).
Structure of the Dialog Box
The dialog box is divided into three groups: BI for binary inputs, BO for binary outputs and LED for LEDs. An
accordingly labelled button is on the left of each group. By double-clicking a button, information regarding the
associated group can be shown or hidden.
In the column Status the present (physical) state of the hardware component is displayed. Indication is dis-
played symbolically. The physical actual states of the binary inputs and outputs are indicated by an open or
closed switch symbol, the LEDs by switched on or switched off 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.
SIPROTEC, 7SD610, Manual
C53000-G1176-C145-6, Release date 02.2011
Mounting and Commissioning
3.3 Commissioning
299