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Description
Value or Value range/ Default
Property / Para-
meter
Determines whether the Carrier Detect
signal of the serial port must be set for the
IEC station to receive messages.
Carrier detect signal is ignored
Carrier detect signal must be
set
Default: Carrier detect signal is
ignored
Carrier Blocking
Delay in milliseconds between activation
of the RTS signal and start of new trans-
mission.
0...65535
Default: 50
CTS Delay
Specifies maximum number of times that
a message is transmitted after timeout.
0...255
Default: 3
Enquiry Limit
Maximum waiting time in milliseconds of
a link layer response.
0...65535
Default: 2000
Header Timeout
The connection is considered to be alive
if the delay between two consecutive
master messages is shorter than the spe-
cified time in milliseconds.
0...65535
Default: 5000
Keep Alive Timeout
The type of the data link connection used
on the channel.
RTS activated during transmis-
sion (Unbalanced slave)
RTS always active, reception
always enabled (Balanced
slave)
RTS activated during transmis-
sion, reception always enabled
(Balanced slave)
Default: RTS activated during
transmission (Unbalanced
slave)
Link Type
Specifies whether the handshaking mes-
sages (request, status of link, reset of
remote link) are restarted when a ‘request
status of link’ message is received from
the remote end.
Handshaking messages not
restarted
Handshaking messages
restarted
Default: Handshaking mes-
sages not restarted
Operating Mode
The time that IEC link waits for the end of
the received message in seconds.
0...255
Default: 2
Response Timeout
The number of characters for calculating
delay for resetting RTS signal.
0...20
Default: 1
RTS Keepup Delay
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1MRS755382
Station Automation COM600 3.4
IEC 60870-5-101 Slave (OPC) User's Manual
Summary of Contents for COM600 3.4
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