32
UMG 604
PC
Com1
RS232
You can use a RS232 connection cable to
connect the UMG604 to a PC.
The achievable distance between two devices
with RS232 interface depends on the cable
used and the baud rate. The maximum
connectable cable length is 30 m.
As a guideline value, for a transmission rate
of 9600 baud the distance should not exceed
15 m to 30 m.
The permissible ohmic load must be larger
than 3 kohm and the capacitive load caused
by the transmission cable must be smaller
than 2500 pF.
Interfaces
Shielding
A twisted-conductor and shielded cable must
be provided for connections via the RS232
interface. The shielding at both ends of the
cable must be connected to a large area of the
housing or cabinet parts in order to achieve an
adequate shielding effect.
Fig. 33.1 Connector pin assignment for the PC
connection cable (Part number: 08 02 427).
Fig. 33.2 Example, connecting a UMG604 to a
PC via the RS232 interface.
D-sub, 9 pin, socket
Mini Combicon,
5 pin
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