Delphin ProfiMessage, Hardware Manual

Page: 53 / 322

Profi Message
I/O modules. A Profi Message device can be fitted with two I/O modules. The CAN-
connection is established internally.
The DCP CAN bus for I/O extensions uses the "Ext. BUS" port. If a Profi Message
device has an insufficient number or type of input channels, a slave device can
then be connected to the
Profi Message device via this port. (Refer to Device con-
nections ).
Connecting the extension bus
Use twisted pair shielded cable (e.g. braided LiYCY 2x0.14 mm2 TP). Ensure that
the start and end connections (i.e. at the master and at the final slave device) use
the supplied 120-ohm resistors. These produce the bus signal level and prevent
interference from signal reflection. The Hi (CAN High) designated ports must be
connected to other devices via Hi, and Lo (CAN Low) with Lo.
Illustration in DataService Configurator
The Channels tab lists the modules currently connected according to the type of
view selected ( hardware view or user-defined ) in the group "Extension (CAN)
bus" group or as I/O modules from the (master) device.
I/O module configuration is explained in Configuring module channels .
Configuring the extension bus
The extension bus protocol cannot be changed and is set to DCP ( Delphin CAN Pro-
tocol).
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Delphin Technology AG
Dezember 2015
Profi Message Manual