Commissioning Aids; Test Messages To The Scada Interface During Test Operation; Checking The System Interface - Siemens SIPROTEC 7UM62 Manual

2.49.12 Commissioning Aids

Device data sent to a central or master computer system during test mode or commissioning can be influenced.
There are tools for testing the system interface and the binary inputs and outputs of the device.
Applications
• Test Mode
• Commissioning
Prerequisites
To be able to use the commissioning aids described below, the following must apply:
– The device must be equipped with an interface.
– The device has to be connected to a control centre.

2.49.12.1Test Messages to the SCADA Interface during Test Operation

If the device is connected to a central or main computer system via the SCADA interface, 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 trans-
ferred 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 how to activate and deactivate test mode and blocked data
transmission.

2.49.12.2Checking the System Interface

If the device features a system interface and uses it to communicate with the control centre, the DIGSI device
operation can be used to test if indications are transmitted correctly.
A dialog box displays the texts of all annunciations that have been masked to the system interface in the matrix.
In another column of the dialog box you can specify a value for the annunciations that you want to test (e.g.
coming/ going)to generate an annunciation as soon as you have entered password no. 6 (for hardware test
menus). The annunciation is output and can now be read both in the operational annunciations of the SIPRO-
TEC 4 device and in the station control center.
The procedure is described in detail in Chapter "Mounting and Commissioning".
SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010
Functions
2.49 Auxiliary Functions
347