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33. BARCODE READER
It saves data reading from a barcode reader in PLC.
33.1 SPECIFICATION OF AVAILABLE BARCODE READER
In order to use barcode reader, configure the connection as “BARCODE” in [Preference]-[Serial
port] of system configuration and speed, data length corresponding to specification of barcode
reader.
Interface
RS232/RS422
Speed
300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600 bps
Data length
7, 8 Bit
Stop bit
1, 2 Bit
Parity
ODD, EVEN, NONE
Flow control
XON/XOFF, DSR/DTR, NONE
Communication
format
ASCII Character code and Exit code CR[0DH] [ASCII data + Exit code]
Interface and speed are designated same with other serial devices connected with GP.
33.2 BASIC OPERATION
In order to read barcode, configure the following in editor.
•
Size of space for device reading barcode and data to be saved. (Select [Common]-[Barcode])
•
Designate system signal 1 of system information. (Select [Common]-[System information])
Barcode read operation is controlled by three bits among devices designated in system information.
(1) Limit signal of barcode input [ PLC → GP ]:
•
Bit4 of word device designated in read device of system information in editor.
•
When this bit is ON, it does not read barcode input.
(2) Completion signal of barcode read [ PLC → GP ]:
•
Bit5 of word device designated in read device of system information in editor.
•
When this bit is ON, barcode input signal will be OFF and it is not able to input until this
signal is reset.
(3) Barcode input signal [ GP → PLC ]:
•
Bit8 of system signal2 of system information in editor is allotted.
•
This bit will be ON automatically when GP save barcode input value into PLC with save
device of PLC.
•
When completion signal of read the code input is set, this bit is reset.
※
Notice
Disable signal of barcode input and completion signal of read are controlled in PLC program.
Barcode information read from a barcode is saved in barcode device and move barcode information
to other space for next reading. In order to move, logic controlling signals is required to create.
Содержание GP Series
Страница 26: ...26 GP S057 Fixing brackets Fixing brackets LCD Screen Power terminal block ...
Страница 27: ...27 1 7 2 Dimensions Color IVORY Unit mm GP 2480 LP S044 ...
Страница 28: ...28 GP S057 1 7 3 The fixing bracket 20060407 Unit mm GP 2480 LP S044 ...
Страница 29: ...29 GP S057 ...
Страница 30: ...30 1 7 4 Panel cut out Unit mm GP 2480 LP S044 100 이상 Min 100 Over 100 Min 100 GP S057 ...
Страница 75: ...75 device and configure of word device value special function ...
Страница 122: ...122 4 Place a mouse cursor on a proper position click left button Text is arranged on a screen ...
Страница 132: ...132 Example of overlap Base screen Overlap screen Base screen after overlapping ...
Страница 234: ...234 24 3 2 Bit tap 3 6 8 9 ...
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