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SYMPTOM
Relay unable to communicate using
ReyDisp Evolution software
©2010 Siemens Protection Devices Ltd
7SG163 Ohmega 300 Series Maintenance
PROBLEM
ACTION
Communication
Ensure connection between PC and relay
channel incorrectly
(either via the front RS232 port or TX2 and
configured.
RX2 on the rear of the relay) has been
correctly made.
Refer to Section 6 of
this manual for more
Ensure Relay address is set correctly on
details on the
both the relay and within ReyDisp Evolution.
configuration of the
If the relay address is set to "0" the relay will
Communication
not communicate.
Channel
Ensure the baud rate / parity settings on the
PC are the same as those set on the relay.
If using the front port ensure that the setting
IEC870 on Port is set to COM2 & COM2
DIRECTION is set to either Auto-Detect or
the port being used.
Chapter 10 Page 5 of 6
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