Technical data

CONTROL PANEL ETV 1961
08.07.2014 Page 17
CAN bus Termination
In a CAN bus system, both ends must be terminated. This is required to avoid transfer
errors caused through reflections in the line.
Device 1 Device 2 Device 3 Device n
e.g. CPU
DCP 160
e.g. Terminal
ET 081
CAN bus connection
CAN bus
termination on the
clamp module
DSUB plug with
termination
circuit
e.g. Terminal
ET 805
If the terminal is one of the end modules, the termination can be made using a 150-Ohm
resistor between CAN A (LOW) and CAN B (HIGH).
8. USB Interface
The terminal has 2 USB interfaces. These interfaces can be used for various USB devices
(keyboard, mouse, storage media, hubs…) in LASAL. Several USB devices can be con-
nected via hub, all completely functional in LASAL. However, for the BIOS setup, the fol-
lowing condition must be noted:
The BIOS setup is only operator-accessible, when the USB keyboard is directly connected
to the USB connector. When using a USB hub, malfunctions can appear in the BIOS setup!
La configuration du BIOS est accessible uniquement si le clavier est connecté directement
à la prise USB. L'utilisation d'un concentrateur USB peut provoquer des erreurs dans la
configuration du BIOS!
It should be noted that many of the USB devices on the market do not comply with USB
specifications; this can lead to device malfunctions. It is also possible that these devices
will not be detected at the USB port or function correctly. Therefore, it is recommended that
every USB stick be tested before actual use.
Il faut souligner que la plupart des périphériques USB sur le marché ne sont pas con-
formes aux spécifications USB, ce qui peut entraîner des dysfonctionnements de l'appareil.
Il est également possible que ces dispositifs ne seront pas détectés par le port USB ou
qu’ils ne fonctionnent pas correctement. Par conséquent, il est recommandé que chaque
clé USB soit testée avant l'utilisation sur l’automate.
a