Manual PD4-C (USB)
10 Special functions
Version: 1.4.1 / 22.07.2016 / FIR-v1626
69
10.1.3 Digital outputs
Outputs
The outputs are controlled using object 60FE
h
. Output 1 corresponds to bit 16 in object 60FE
h
, output
2 corresponds to bit 17, etc., as with the inputs. The outputs with special functions are again entered in
the firmware in the lower bits 0 to 15. Currently only bit 0 is assigned that controls the motor brake.
Circuits
!
CAUTION
Take notice of the maximum load of the output (see therefore the chapter "Electrical properties").
The outputs are realized as "Open Drain". Therefore a external supply voltage is needed.
Example
the output signal is supposed to get used further on. For that purpose a circuit like to one
shown in the following image is necessary.
+
Nanotec Controller
Supply voltage
Output signal
R
extern
On / Off
At a supply voltage of +24 V a resistor value of R
extern
of 10
kΩ
recommended.
Example
A simple appliance is supposed to get used with the digital output.
+
Nanotec Controller
24 V
On / Off
I
max
Object entries
Additional object dictionary entries exist for manipulating the value of the outputs (see the following
example for details). Similar to the inputs, only the bit at the corresponding position always has an
effect on the respective output:
•
h
:02
h
This can be used to change the logic from "closer" to "opener". When configured as a "closer", the
outputs a logical high level if the bit is "1". When configured as an "opener", the outputs a logical low
level if there is a "1" in object 60FE
h
.
