Ax350_04a_oi_e.doc / May-18
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3.7
Serial interface (Option AO/AR/CO/CR)
A serial interface (RS232 or RS485) is available at terminal 16, 17 und 18.
This interface can be configured in the SERIAL MENU.
The serial interface RS232 or RS485 can be used:
for easy setup and commissioning of the units
to modify settings and parameters during operation
to read out internal states and actual measuring values by PC or PLC
The following drawing shows the connection to a PC by using a standard Sub-D-9 connector:
Connection of the RS232 interface:
Connection of the RS485 interface:
3.8
Control-Output (Option AO/AR/CO/CR)
Four control outputs are available at terminal 20, 21, 22 and 23.
Switching conditions can be set in the PRESELECTION MENU. The output Ctrl. Out1 – 4 are fast PNP
outputs with a switching capability of 5 – 30 Volt / 200 mA per channel. The switching states is
displayed (display with unit and status bar) as C1 … C4.
The switching voltage of the outputs must be applied to input terminal 19 (COM+).
In case of switching inductive loads it is advisable to use external filtering of the coils. The switching
states is displayed (display with unit and status bar) as C1 and C4.
