Termination Resistor; Access From The Display - ABB SACE Emax E1.2 Operating Instructions For The Design Engineer

Termination resistor The modules provide the possibility to insert a 120 Ω termination resistor on the CAN bus, by setting the
Access from the display With the modules energized, and the Local Bus enabled, the presence of the modules on the terminal box
218 | © 2017 ABB | 1SDH001330R0002 - ECN000058721 Rev. A
dip-switches Rterm on the side of the modules, in position on. This option must be selected before the
installation of the modules.
For the positions on and off of the dip-switches Rterm, see the following figure (on DeviceNet™
communication modules, the remaining dip-switches are not used).
IMPORTANT:
• The termination resistors must never be included in the nodes. The inclusion of this
capability could easily lead to a network with improper termination (impedance too
high or too low), potentially causing a failure. For example, the removal of a node,
which includes a termination resistor, could result in a network failure.
• The termination resistors must not be installed at the end of a branch (drop line), but
only at the two ends of the main backbone (trunk line).
ON
1 2 3 4
Figure 38
activates additional menus on the display.
To enable the Local Bus, you need to select "On" in the menu Settings, Modules, Local Bus.
The following table shows the path for accessing the configuration parameters of the modules from the
display:
...
Main frequency
Settings
Modules
Power Controller
...
Local/Remote
Local Bus
...
MAC Address
Ekip Com DeviceNet™
Baudrate
MAC Address
Ekip Com DeviceNet™ *R
Baudrate
...
Functions
Electronic accessories | 9 - Ekip Com DeviceNet modules™
ABB | SACE Emax 2
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