AED
CONNECTING INTERFACES AND I/OS
40
7.5
AED9401A
7.5.1
Connecting CANopen or DeviceNet
KL5
GND
KL3
KL6
off
on
CAN - (CAN L)
CAN + (CAN H)
Uext
on
off
Bus
termination
Bus
disconnection
Bus selection
CAN
DeviceNet
S2
S3
S1
Fig. 7.15
Pin assignment and switch positions for CANopen and DeviceNet
Both bus protocols are connected via the same terminals. Connections KL6 and KL3
each have four terminals and have through-connections, so that you can route the bus to
the next node.
Set the bus protocol in the deactivated state via switch S2; it is read in by the AED when
the supply voltage is applied. Use shielded, twisted-pair cables as connecting cables.
The position of the bus termination switch is based on the position of the AED in the bus
system. Bus termination may only be activated at the end points of the bus (max. 2 ter
mination resistors active), also see section 7.1.2 on page 28. If necessary, slide switch S1
on the AED to on. The factory setting is off.
You can disconnect the module from bus for the purpose of diagnosis: Switch S3 to off.
The factory setting is on.
Содержание AED 9101D
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