scheider electric MiCOM P746, Technical Manual

Page: 57 / 530

Getting Started P746/EN GS/G31
MiCOM P746 (GS) 3-
19
GS
1.9.1 Front courier port
The front EIA(RS)232
1
9 pin port supports the Courier protocol for one to one
communication. It is designed for use during installation and commissioning/maintenance
and is not suitable for permanent connection. Since this interface will not be used to link the
relay to a substation communication system, some of the features of Courier are not
implemented. These are as follows:
Automatic Extraction of Event Records:
−
Courier Status byte does not support the Event flag
−
Send Event/Accept Event commands are not implemented
Automatic Extraction of Disturbance Records:
−
Courier Status byte does not support the Disturbance flag
Busy Response Layer:
−
Courier Status byte does not support the Busy flag, the only response to a request will
be the final data
Fixed Address:
−
The address of the front courier port is always 1, the Change Device address command
is not supported.
Fixed Baud Rate:
−
19200 bps
It should be noted that although automatic extraction of event and disturbance records is not
supported it is possible to manually access this data via the front port.
1.10 MiCOM S1 relay communications basics
The front port is particularly designed for use with the relay settings program MiCOM S1 or
MiCOM S1 Studio. MiCOM S1 and MiCOM S1 Studio are the universal MiCOM IED Support
Software and provide users a direct and convenient access to all stored data in any MiCOM
IED using the EIA(RS)232 front communication port.
MiCOM S1 provides full access to MiCOM Px20, Px30, Px40 relays and MiCOM Mx20
measurements units.
MiCOM S1 Studio provides full access to MiCOM Px20, Px30, Px40 relays and other
protection devices.
1.10.1 PC requirements
The following minimum requirements must be met for the MiCOM S1 software to properly
work on a PC.
•
IBM computer or 100% compatible,
•
WindowsTM 98 or NT 4.0 (Not WindowsTM 95)
•
Pentium II 300 Mhz minimum,
•
Screen VGA 256 colours minimum,
•
Resolution 640 x 400 minimum (1024 x 768 recommended),
•
48Mb RAM minimum,
•
500Mb free on computer hard-disk.
MiCOM S1 Studio software necessitates the following requirements:
1
This port is actually compliant to EIA(RS)574; the 9-pin version of EIA(RS)232, see www.tiaonline.org .