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Functions
2.45.5 Commissioning Aids
2.45.5.1 Influencing Information on the System Interface During Test Operation
2.45.5.2 Testing the System Interface
294
Here you may select the time standard for internal time stamping by selecting from the
following modes:
Operating Mode
Internal
IEC 60870–5–103
PROFIBUS DP
IRIG B Time signal External synchronization using IRIG B
DCF77 Time signal
SIMEAS Time signal
Sync. Box
Pulse via binary
input
Fieldbus
The time display may be set using either the European format (DD.MM.YYYY) or the
US format (MM/DD/YYYY).
If the power supply voltage is cut off for 1 or 2 days, the internal buffer battery is
automatically switched off.
If the device is connected to a central control or storage system, you can influence the
information that will be transferred to the control center.
The IEC 60870–5–103 protocol allows to identify all messages and measured values
transferred to the central control system 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® 4 via the operator
interface. The CFC link for changeover to binary input is predefined in the device (see
Figure A-48 in the Appendix A.9.7).
®
The SIPROTEC
4 System Manual describes in detail how to activate and deactivate
test mode and blocked data transmission.
If the device has a SCADA interface that is used for communication with a control
centre, you can test in the DIGSI
transmitted.
Explanations
Internal synchronization using RTC (pre-set)
External synchronization using the system interface and the
IEC 60870–5–103 protocol
External synchronization using PROFIBUS interface
External synchronization using DCF 77
External synchronization using SIMEAS Sync. Box
External synchronization with pulse via binary input
External synchronization using Modbus interface
®
4 Dialog Mode whether annunciations are correctly
7UM62 Manual
C53000-G1176-C149-3
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