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Communications (Serial and Parallel)
16.11 Computer Link
16.11 Computer Link
16.11.1 Outline
This is a communications mode that has protocols that allow the Image Checker to
communicate with certain programmable logic controllers (hereafter PLC).
− Because the Image Checker can write inspection results (numerical calculation and
judgment results), there is no need for the PLC to perform polling or flag monitoring,
and this reduces the load on the PLC communications program.
− It is possible to switch types by referring to values set in the PLC registers.
Because the Image Checker can read the PLC registers, all the PLC has to do is to
write values to its own registers, and issue the timing instruction (TYPE) in order to
initiate a type switch.
Available PLCs for Computer Link
Manufacture
Manufacture
Panasonic Industrial Devices SUNX
Co., Ltd.
Mitsubishi Electric Corporation
Mitsubishi Electric Corporation
OMRON Corporation
Allen−Bradley
Limitations that apply when Computer Link mode is selected
Except for key emulation none of the serial commands for the COM port can be used.
Therefore, the following items that are not compatible with parallel communication
cannot be used.
− Referencing and changing the maximum and minimum values for numerical calculations
− Resetting the spreadsheet from an external device
Note
VBT Ver. 2 is only compatible with the Tool port.
16 − 56
Model (series) name
Model (series) name
FP series
A series, Qseries (Support for "Type 4")
FX series
C series, CV series, CS1 series
SLC500
OCR Type A230
Available
Available
Device
Device
device
No.
DT
D
D
0 to 9999
0 t 9999
D/DM
N7
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