B&B Electronics Parallel Printer Card PIOC Manuale Utente Scaricare il pdf (Pagina 48)

GHI Electronics,LLC USBwiz User Manual

USBwiz Command Set

HR - Read HID Report

This command read HID Report data. It also returns HID Report Size.

Format HR<SP>p<CR>

!00<CR>

$nn<CR>

Report’s data

!00<CR>

p the port number

nn HID Report Size

Report data are in ASCII Hexadecimal

UP - Register USB Printer

USBwiz has an internal p0rinter driver that can support up to 2 printers. This command

must be used before accessing printers.

Format UP<SP>p<CR>

!00<CR>

p USB port number which can be 0 or 1

Example UP<SP>1<CR>

!00<CR>

PR - Reset USB Printer

Format PR<SP>p<CR>

!00<CR>

p is USB port number which can be 0 or 1

Example PR<SP>1<CR>

!00<CR>

PS - Get USB Printer Status

Some USB printers may not be able to determine status.

Format PS<SP>p<CR>

!00<CR>

$nn<CR>

!00<CR>

p is USB port number

nn is Printer Status*

Example PS<SP>1<CR>

!00<CR>

$20<CR>

!00<CR>

Printer status indicates: Paper Empty

* Status Structure

Bits(s) Field Description

7,6 Reserved Reserved

5 Paper Empty 1= Paper Empty 0 = Paper Not Empty

4 Select 1 = Selected 0 = Not Selected

3 Not Error 1 = No Error 1 = Error

2,1,0 Reserved Reserved

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