xiQ - Technical Manual Version 1.0
42
3.8.4.3.
Digital Output – Internal schematic
Following scheme is the internal scheme of the Digital Output signal flow inside the camera.
figure 3-31, digital output, interface schematic
Output Transfer Characteristic
When Output is in On state - typical transfer characteristic of output is as on following figure:
figure 3-32, digital output transfer characteristics
3.8.4.4.
Digital Output – Wiring
Digital output has an open collector switching transistor with common IO Ground. In most cases a power source for external
device must be provided.
Connecting Digital OUTPUT to a NPN-compatible PLC device input (biased)
3.8.4.4.1.
Output state
Output switch state
Input state
ON
Sourcing current
Pull up (energized)
OFF
Relaxing
Not energized
PTC Fuse
FPGA_OUTPUT
GND
10
K
1K
DIGITAL OUTPUT
GND (Common IO Ground)
Idrive=2mA
I
LOA D
0,0
0,2
0,4
0,6
0,8
1,0
1,2
1,4
1,6
1,8
2,0
0
5
10
15
20
25
30
V
OUTPUT
(V)
I
OUTPUT
(mA)
Output Transfer Characteristic (Receptacle)