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1MRK 511 391-UUS A
4.2
4.2.1
Table 3:
RS485GEN Non group settings (basic)
Name
Values (Range)
WireMode
Four-wire
Two-wire
670 series 2.2 ANSI
Communication protocol manual
fixed time and a random time where the maximum random time is also configurable.
The back-off feature is always on.
tMaxRndDelBkOf specifies the configurable RS485 maximum back-off random time
delay in seconds.
HWCollisionDetect, a new collision detect feature in hardware is implemented to
improve the sensitivity for collision detection. The performance of this feature depends
on parameters of the RS485 network as well as the protocol behaviour. It can even
have negative impact on performance in some circumstances, therefore usage of the
feature should be tested and adapted for each specific installation.
HWCollisionDetect is only used for RS485 networks, thus is only
available in RS485DNP function.
Master session settings for RS485 communication channel,
MSTSERIAL
ChToAssociate defines the channel, to which this master session should be associated
to.
The MSTSERIAL function includes the same settings as the MS1TCP
to MS4TCP functions, except the ChToAssociate setting which is used
to select either the serial optical or RS485 communication interface on
hardware modules.
Parameter list
Parameter list for optical and RS485 communication channel
Unit
Step
-
-
Default
Description
Four-wire
Two or four wire mode
Section 4
DNP3 parameters
PID-4060-SETTINGS v5
33
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