GE 869, Communications Manual

Page: 51 / 436

869 MOTOR PROTECTION SYSTEM – COMMUNICATIONS GUIDE 7-1
869 Motor Protection System
Chapter 7: IEC 60870-5-103
GE
Digital Energy
IEC 60870-5-103
The point map for the 103 is different from the one shared by the IEC104 and DNP
protocols. IEC 60870-5-103 serial communications protocol is supported on the rear RS485
port only.
The DNP, 103 and Modbus can not be enabled simultaneously. Only one instance of
DNP3.0, IEC 103 or Modbus can run on the RS485 serial port.
Path :
Setpoints > Device > Communications > IEC60870-5-103
To view the list of binary inputs, see the 869 Flexlogic Operands table in the Setpoints/
FlexLogic section of the 869 instruction manual .
FASTPATH:
The user must pay attention when configuring the function type and information number
of the different points, because they must be unique. There is no mechanism in the
EnerVista 8 Series Setup software or the front panel HMI to detect duplication of the
information index.
FASTPATH:
The IEC 60870-5-103 point lists always begin with point 0 and end at the first “Off” value.
Since IEC 60870-5-103 point lists must be in one continuous block, any points assigned
after the first “Off” point are ignored.
Cause of Transmission
The cause of transmission is an unsigned integer which takes one of the values specified in
the following tables.
Table 7-1: Cause of Transmission in the Monitor Direction
Value Description
<1> Spontaneous
<2> Cyclic
<3> Reset frame count bit (FCB)
<4> Reset communications unit (CU)
<5> Start/Restart
<6> Power on
<8> Time synchronization