Setting The Bus Terminator - Aventics CMS, B-Design Betriebsanleitung

114 AVENTICS | DeviceNet | R499050019–BDL–001–AD
Commissioning and Operation
Table 19: Setting options for switch S8
Switch setting
S8
OFF
ON
7.1.5
In order to minimize line reflections and to ensure a defined rest
level on the bus coupler transfer line, a bus terminator has to be
fitted on both ends of the transfer line.
In the bus coupler, the bus terminator has been integrated into
the device and can be defined using switch S8 (see Fig. 10).
Fig. 10: Switch S8 for bus terminator
The bus terminator setting is located beneath the PG fitting B
(see Fig. 10).
O
Set the bus terminator with switch S8 (see Tab. 19).
Outgoing bus on X72
Bus terminator
(BUS OUT)
Switched off Switched on
Switched on Switched off
The switch is in the OFF position when delivered, i.e. the bus
terminator is switched off.

Setting the bus terminator

X71
A
X72
B
X10
Application
When the bus coupler is connected to
another module and does not form the end
of the transfer line.
When the bus coupler is positioned at the
end of the transfer line.
ON OF F
S8
U
Q1
U
Q2
S4 S5 S6