GEViCAM GP-151400, Руководство по эксплуатации

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4.6 GPIO (Programmable Logic Controller)
4.6.1 Programmable Logic Controller Function s
4.6.1.1 PLC Main Block
The Pleora core has a very powerful
GPIO control, which replaces simple
PLC (Programmable Logic Controller) in
factory automation floor. In other words,
a GigE camera can replace a camera, a
frame grabber and a PLC to save the
cost and space.
The PLC
function control used in the
GP-series is well described in the
Pleora document.
Please refer the Pleora PLC reference
in the SDK package for detailed infor-
mation
.
Camera GPIO and Core Block:
The GPIO main block is shown in Fig.
36. The upper left IO and Video Blocks
are internal connections from the cam-
era module and the upper right IO is
connected to the GPIO connector.
In the GP-series , the external IO num-
bers are limited and the specific signals
are two TTL inputs, two opto-isolated
inputs, two TTL outputs and two opto-
isolated outputs. In terms of PLC IO
function, these opto-isolated inputs and
outputs are internally converted to TTL.
Therefore, regardless the IO function, all
interface inside of the PLC block is the
TTL logic level. (Fig. 37).
The LUT Block connects each Input
Block and Output Block.
The Enhance Function Block outputs
are looped to both input and output blocks.
GPIO Inputs (4 inputs):
The External TTL trigger input is connected to TTL_ IN
0
and I
0
via the GPIO connector, Pin #9.
The Strobe-out from the camera module is connected directly to TTL_IN
1
and I
1
.
The Opto-D1 (Pins #5 & 11) inputs are connected to Opto_IN
2
and I
2
.
The Opto-D2 inputs (Pins #6 & 12) are connected to Opto_IN
3
and I
3
. (*D2 is normally set to output
and the jumper setting has to be changed for the input mode).
GPIO Outputs (4 outputs):
Internal Trigger (directly to camera module) is TTL_OUT
0
and Q
0
.
The GPIO connector, Pin #3 is TTL_OUT
1
and Q
1.
It can be used as signal monitoring of internal
pulses or status by selecting LUT (factory default is Strobe Out).
Opto-D1 output is Opto_OUT
2
and Q
2
.
Opto-D2 output is Opto_OUT
3
and Q
3
. (*If Opto-D1_OUT is selected, the hardware jumper must be
changed. Opto-D2_OUT is default ).
GEViCAM Inc
Fig. 36
Fig.37