ABB TCC300, User Manual, Page: 322 / 716

other selection is also available), the selection is still required due to a difference in the
physical input requirement. In LTC mode, the non-sequential input is used as a counter
input, and hence an object 10 point "Non-Sequential" is made available to activate non
sequential through communication. When SCADA HeartBeat is active, HeartBeat DNP
points are used as a second set of settings.
The HeartBeat DNP points (applicable only for forward power settings) include:
• Bandcenter
• Bandwidth
• Time Delay
• LDC R
• LDC X
• Block Lower Voltage
• Block Raise Voltage
• Intertap Time Delay
• Inverse Time Delay
• HeartBeat Timer Period
• Voltage Reduction 1
• Voltage Reduction 2
• Voltage Reduction 3
As the TCC300 has 4 different setpoint profiles to choose from, when the SCADA
HeartBeat is inactive, the previously selected active profile is used. In order to determine
the actively used settings a third group of DNP points called the Active DNP points
("Active Bandcenter (Forward)", "Active Bandwidth (Forward)" etc), can be used.
Reading the Active DNP points gives the current used settings, but writing always
changes the selected Active Profile.
The SCADA HeartBeat DNP3.0 Protocol sequence for LTC and Regulator are provided
in
Figure 248 . Also, Object 40 point "Write HB" is mapped by default to Point 195,
"HeartBeat Timer" mapped to 159, "Direct HeartBeat" mapped to 211 and "VRed Turnoff
Time" mapped to 212.
Section 5
1VAC388793-MB A
System setup
316 TCC300
User Manual