Siemens 7SJ82 Manual page 992

Capacitor Bank Protection
7.4 Current-Unbalance Protection for Capacitors, 3-Phase
Resetting the Counters via Protocols IEC 60870-5-103, IEC 60870-5-104, DNP3, or Modbus
The following example shows how to use a function chart (CFC) to reset the counters with the protocols
IEC 60870-5-103, IEC 60870-5-104, DNP3, or Modbus.
EXAMPLE
•
Add a Marker command (SPC) signal to the information list.
[sc_add_SPC_signal, 1, en_US]
Figure 7-16
•
Set up the following CFC. Connect the SPC signal as input, and the signal
output.
[sc_CFC_60C_3ph, 1, en_US]
Figure 7-17
•
Send a single-point control command from the control center to the SPC signal to activate the signal
>Reset all counters . Then the counters are reset.
992
Adding Marker Command (SPC) Signal to Information List
Function Chart (CFC): Activating the Binary Input Signal
>Reset all counters as
SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017