25
PME-MP60/MP07
A0616-13.4 en HBM
4.5 CAN interface
The CAN-bus is connected via terminal plug 1. A maximum of 32 CAN users
can be connected in one bus segment.
The CAN-bus needs a terminating resistance of 120 Ω in the first and last bus
users. A terminating impedance is integrated into the MP60 module which is
activated by the S14 DIP switches (see page 14).
CAN_Low CAN_High
Fig. 4.7: Connect CANinterface
CAN−High
CAN−Low
CAN
connection
in accordance
with Fig. 4.7
First device in
the bus line
Last device in the
bus line
Switch on terminating resistance
in the PME (see page 14)
Switch on terminating
resistance in the PME
Do not switch on
terminating resistance
Fig. 4.8: CAN-bus operation with several modules (as per Standard maximum 32)
NOTE
If the first or last device in a bus circuit is not a PME module, then a
120 W resistance must be switched on at these pieces of equipment.
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