GE 350 Communications Manual page 34

IEC 60870-5-103 SERIAL COMMUNICATION
2-24
Modbus Address Description
44388 First ASDU First Analogue Entry
44389 First ASDU First Analogue Factor
44390 First ASDU First Analogue Offset
44391 First ASDU Second Analogue Entry
44392 First ASDU Second Analogue Factor
44393 First ASDU Second Analogue Offset
.........
44412 First ASDU Ninth Analogue Entry
44413 First ASDU Ninth Analogue Factor
44414 First ASDU Ninth Analogue Offset
44415 Second ASDU Identification Type
44416 Second ASDU Function Type
44417 Second ASDU Information Number
44418 Second ASDU Scan Timeout
44419 Second ASDU First Analogue Entry
44420 Second ASDU First Analogue Factor
44421 Second ASDU First Analogue Offset
.....
44443 Second ASDU Ninth Analogue Entry
44444 Second ASDU Ninth Analogue Factor
44445 Second ASDU Ninth Analogue Offset
44446 Third ASDU Identification Type
......
44476 Third ASDU Ninth Analogue Offset
44477 Fourth ASDU Identification Type
......
44507 Third ASDU Ninth Analogue Offset
In the measurands configuration screen, with each selected measurement, a Factor and
an Offset must be configured.
• The Factor is a multiplier factor.
• The Offset is an offset factor to be applied to the relay measurement to make the final
measurement calculation to be sent to the master
The factor and offset parameters allow the user to perform different scaling in the relay
measurements. The final measurement sent to the IEC103 master will be: "a*x+b", where
"x" is the relay measurement, "a" is the multiplier factor and "b" is the offset.
The measurands will be sent to the primary station as a response to a class 2 request.
There is a Timeout configurable with increments of 100 ms, between 0 and 60 min, in order
to configure the desired interval.
SR3 SERIES PROTECTIVE RELAY PLATFORM – COMMUNICATIONS GUIDE
CHAPTER 2: RS485 INTERFACE
Value Format
Disabled F88
1 F3
0 F1
Disabled F88
1 F3
0 F1
Disabled F88
1 F3
0 F1
3 or 9 F221
<0 - 255 > F1
< 0 - 255 > F1
< 0 - 1000> secs F1
Disabled
1 F3
0 F1
Disabled
1 F3
0 F1
3 or 9 F221
0 F1
3 or 9 F221
0 F1