SR 489 GE Multilin
SR 489 GE Multilin
(OP)
Hello,
We currently have an engineer on site in Egypt commissioning two GE Multilin SR489 Generator Protection relays. He has experienced problems communicating with the relays from his laptop through the front RS232 port.
We have contacted GE helplines and checked everything they suggested with no success.
He has eventually managed to establish comms with the relays by using a laptop with Windows XP but with the compatiblilty setting changed to WIndows 2000/98/NT or 95.
He tried several laptops with Windows 2000 Professional operating system with no success.
I have successfully communicated with SR489s in the past using laptops with Windows 98.
It would appear there is a compatibilty issue with the 489 software and Windows operating systems.
If somebody experienced the above problem,please advise.
Thanks
We currently have an engineer on site in Egypt commissioning two GE Multilin SR489 Generator Protection relays. He has experienced problems communicating with the relays from his laptop through the front RS232 port.
We have contacted GE helplines and checked everything they suggested with no success.
He has eventually managed to establish comms with the relays by using a laptop with Windows XP but with the compatiblilty setting changed to WIndows 2000/98/NT or 95.
He tried several laptops with Windows 2000 Professional operating system with no success.
I have successfully communicated with SR489s in the past using laptops with Windows 98.
It would appear there is a compatibilty issue with the 489 software and Windows operating systems.
If somebody experienced the above problem,please advise.
Thanks






RE: SR 489 GE Multilin
These can cause problems because the handshaking signals expected by the relay may not be present.
RE: SR 489 GE Multilin
Control Panel
System
Device Manager
Ports
Also make sure you don't have some other device assigned to the port such as a modem.
RE: SR 489 GE Multilin