ABB COM600 Series User Manual page 22

22
COM600 series, Version 5.0
DNP 3.0 Serial Master (OPC) User's Manual
Property/Parameter
Collision Detection
CTS Delay
Disable Reset of the Remote
Link
Enquiry Limit
Header Timeout
Link Layer Confirmation
Enabled
Maximum Message Length
Maximum Random Delay for
Retransmission
Value or Value range/Default
Carrier detection not in use
Carrier detection in use
Default: Carrier detection not
in use
0 to 65535
Default: 50
True
False
Default: False
0 to 255
Default: 1
0 to 65535
Default: 2000
In use
Not in use
Default: In use
50 to 249
Default: 230
0 to 65535
Default: 0
1MRS756567
Description
Defines of collision detection is
in use or not.
Time delay in milliseconds
between the activation of the
RTS signal and the start of a
new transmission.
Specifies if Reset of the
Remote Link is disabled. Dis-
abling this configuration is use-
ful when the link initialization is
not needed in both directions
or if it is possible that this mes-
sage collides with other trans-
mitted frames from the IEDs
sharing the channel.
Specifies the maximum number
of times that a message is
retransmitted after a timeout.
Specifies the maximum waiting
time (in milliseconds) within
which the first byte of a link
layer response should have
been received.
Determines whether the link
layer confirmations are in use
or not.
Maximum length of a data link
fragment.
Maximum random delay in mil-
liseconds for retransmission.