janitza UMG 605 PRO, User Manual And Technical Data

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UMG 605-PRO
24
7. 2 RS232
You can use an RS232 connection cable
to connect the device to a PC.
The achievable distance between two
devices with RS232 interfaces depends
on the cable used and the baud rate.
The maximum cable length that can
be connected is 30 m!
As a guideline, if the transmission rate
is 9600 Baud, a distance of 15 m to 30 m
should not be exceeded.
The permissible ohmic load must be greater
than 3 kOhm and the capacitive load caused
by the transmission line must be lower than
2500 pF.
Fig. Plug arrangement for the PC connection cables
(item no. 08 02 427).
D-sub, 9-pin,
Receptacle
Mini Combicon
5-pin
PC
Com1
Fig. Example, connecting a UMG605-PRO to a PC
via the RS232 interface.
7. 3 RS485
In the UMG605, the RS485 interface
is designed as a
2-pin plug contact.
RS485 bus
A
B A
B
B A
Fig. RS485 interface, 2 pin plug contact
RS485 bus
A
B
B A
Fig. RS485 interface, 2-pin plug contact with
termination resistor (item no. 52.00.008).
120Ω