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Port P3
The DCU 305 R3 has a 9-pin D-SUB male connector at port P3,
outlined as follows:
Pin #
Description
2
RxD
3
TxD
4
DTR
5
SG
7
RTS
8
CTS
Port P10:
The DCU 305 R3 has a 9-pin D-SUB male connector at port P10,
outlined as follows:
Pin #
Description
2
CAN-L
7
CAN-H
Multidrop communication
Several DCU 305 R3 units may be connected together in what is
known as a
multidrop
network.
For this to work correctly, each of the connected units must have its
unique ID-number in the range 1-239. This is done using the
parameter program Rudolf.
Further, the multi-drop net must be an RS-485 net. This means that
RS-232/RS-485 converter units, for instance the ICPCON
RS232/RS485 unit, must be connected close to the communication
port P3 of each DCU 305 R3 unit.
We recommend using a twisted pair cable with two pairs of at least
0.22 mm
2
, and capacity lower than 60pF/m.
Please contact your dealer or Auto-Maskin for correct dip setting and
cabling of these units in a network.
Summary of Contents for DCU 305 R3 LT
Page 1: ...Auto Maskin Installation Manual DCU 305 R3 DCU 305 R3 LT Diesel Engine Control Unit...
Page 2: ...About this manual ii...
Page 35: ...Page 35 44 Schematic Drawings Sample Schematic Page 1...
Page 36: ...Page 36 44 Sample Schematic Page 2...
Page 37: ...Page 37 44 Optional Relay Unit MK 14...