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.
4.2
Parameter list
4.2.1
Parameter list for optical and RS485 communication channel
PID-4060-SETTINGS v5
Table 4:
RS485GEN Non group settings (basic)
Name
Values (Range)
Unit
Step
Default
Description
WireMode
Four-wire
Two-wire
-
-
Four-wire
Two or four wire mode
1MRK 511 413-UUS B
Section 4
DNP3 parameters
650 series 2.2 ANSI
33
Communication protocol manual
