Physical Connection And Link Layer; Iec 60870-5-103 - GE MiCOM P40 Agile Technical Manual

P14x
9. If using EIA(RS)485, the next cell (RP1 Comms Mode) selects the communication mode. The choice is either
IEC 60870 FT1.2 for normal operation with 11-bit modems, or 10-bit no parity. If using K-Bus this cell will not
appear.
10. If using EIA(RS)485, the next cell down controls the baud rate. Three baud rates are supported; 9600, 19200
and 38400. If using K-Bus this cell will not appear as the baud rate is fixed at 64 kbps.
7.2

IEC 60870-5-103

The specification IEC 60870-5-103 (Telecontrol Equipment and Systems Part 5 Section 103: Transmission
Protocols), defines the use of standards IEC 60870-5-1 to IEC 60870-5-5, which were designed for communication
with protection equipment
This section describes how the IEC 60870-5-103 standard is applied to the Px40 platform. It is not a description of
the standard itself. The level at which this section is written assumes that the reader is already familiar with the
IEC 60870-5-103 standard.
This section should provide sufficient detail to enable understanding of the standard at a level required by most
users.
The IEC 60870-5-103 interface is a master/slave interface with the device as the slave device. The device conforms
to compatibility level 2, as defined in the IEC 60870-5-103.standard.
The following IEC 60870-5-103 facilities are supported by this interface:
● Initialization (reset)
Time synchronization
●
Event record extraction
●
● General interrogation
Cyclic measurements
●
● General commands
Disturbance record extraction
●
Private codes
●
7.2.1

PHYSICAL CONNECTION AND LINK LAYER

Two connection options are available for IEC 60870-5-103:
Rear Port 1 (RP1) - for permanent SCADA connection via RS485
●
Optional fibre port (RP1 in slot A) - for permanent SCADA connection via optical fibre
●
P14xEd1-TM-EN-1
COMMUNICATIONS
RP1 Port Config
K-Bus
COMMUNICATIONS
RP1 Comms Mode
IEC 60870 FT1.2
COMMUNICATIONS
RP1 Baud rate
19200
Chapter 18 - Communications
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