Commissioning Aids; Description - Siemens siprotec SJ62 User Manual

2 Functions

2.23.10 Commissioning Aids

Applications

2.23.10.1Description

Test Messages to
the SCADA Inter-
face during Test
Operation
Checking the
System Interface
Checking the
Binary Inputs and
Outputs
343
Device data sent to a central or master computer system during test mode or commis-
sioning can be influenced. There are tools for testing the system interface and the
binary inputs and outputs of the device.
• Test Mode
• Commissioning
If the device is connected to a central or main computer system via the SCADA inter-
face, then the information that is transmitted can be influenced.
Depending on the type of protocol, all messages and measured values transferred to
the central control system can be identified with an added message "test operation"-
bit while the device is being tested on site (test mode). This identification prevents the
messages from being incorrectly interpreted as resulting from an actual power system
disturbance or event. As another option, all messages and measured values normally
transferred via the system interface can be blocked during the testing ("block data
transmission").
Data transmission block can be accomplished by controlling binary inputs, by using
the operating panel on the device, or with a PC and DIGSI via the operator interface.
The SIPROTEC 4 System Description describes in detail how to activate and deacti-
vate test mode and blocked data transmission.
If the device features a system port and uses it to communicate with the control centre,
the DIGSI device operation can be used to test if messages are transmitted correctly.
A dialog box shows the display texts of all messages which were allocated to the
system interface in the configuration matrix. In another column of the dialog box you
can specify a value for the messages you intend to test (e.g. ON/OFF). Having entered
password no. 6 (for hardware test menus) a message can then be generated. The cor-
responding message is issued and can be read out either from the event log of the
SIPROTEC 4 device or from the substation control system.
The procedure is described in detail in Chapter "Mounting and Commissioning".
The binary inputs, outputs, and LEDs of a SIPROTEC 4 device can be individually and
precisely controlled in DIGSI. This feature can be used, for example, to verify control
wiring from the device to substation equipment (operational checks), during commis-
sioning.
A dialog box shows all binary inputs and outputs and LEDs of the device with their
present status. The operating equipment, commands, or messages that are config-
ured (masked) to the hardware components are displayed also. After entering pass-
word no. 6 (for hardware test menus), it is possible to switch to the opposite status in
another column of the dialog box. Thus, you can energize every single output relay to
check the wiring between protected device and the system without having to create
the alarm allocated to it.
The procedure is described in detail in Chapter "Mounting and Commissioning".
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015