ABB COM600 3.4 User Manual page 26

26
Station Automation COM600 3.4
IEC 60870-5-101 Slave (OPC) User's Manual
Property / Para- Value or Value range/ Default
meter
Carrier Blocking Carrier detect signal is ignored
Carrier detect signal must be
set
Default: Carrier detect signal is
ignored
CTS Delay 0...65535
Default: 50
Enquiry Limit 0...255
Default: 3
Header Timeout 0...65535
Default: 2000
Keep Alive Timeout 0...65535
Default: 5000
Link Type 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)
Operating Mode Handshaking messages not
restarted
Handshaking messages
restarted
Default: Handshaking mes-
sages not restarted
Response Timeout 0...255
Default: 2
RTS Keepup Delay 0...20
Default: 1
Description
Determines whether the Carrier Detect
signal of the serial port must be set for the
IEC station to receive messages.
Delay in milliseconds between activation
of the RTS signal and start of new trans-
mission.
Specifies maximum number of times that
a message is transmitted after timeout.
Maximum waiting time in milliseconds of
a link layer response.
The connection is considered to be alive
if the delay between two consecutive
master messages is shorter than the spe-
cified time in milliseconds.
The type of the data link connection used
on the channel.
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.
The time that IEC link waits for the end of
the received message in seconds.
The number of characters for calculating
delay for resetting RTS signal.
1MRS755382