11-18 Programmer’s Guide
SCPI Command Summary
SCPI Device Command Summary
Table 11-7 Writeable Ports
NOTE When using the WRITEIO(15,0) or WRITEIO(15,3) command, the
Printer_Select Line is set high. However, when the instrument is doing
hardcopy, the Printer_Select Line is set low. The Printer_Select line may
or may not be used by individual printers. Check with your printer
manual.
Port
Number
Register Description
15 0 Outputs 8-bit data to the Cent_D0 through D7 lines of the
Centronics port. Cent_D0 is the least significant bit,
Cent_D7 is the most significant bit. Checks Centronics
status lines for:
• Out of Paper
• Printer Not on Line
• BUSY
• ACKNOWLEDGE
15 1 Sets/clears the user bit according to the least significant bit
of A. A least significant bit equal to 1 sets the user bit high.
A least significant bit of 0 clears the user bit.
15 2 Sets/clears the limit pass/fail bit according to the least
significant bit of A. A least significant bit equal to 1 sets the
pass/fail bit high. A least significant bit of 0 clears the
pass/fail bit.
15 3 Outputs 8-bit data to the Cent_D0 through D7 lines of the
Centronics port. Cent_D0 is the least significant bit,
Cent_D7 is the most significant bit. Does not check
Centronics status lines.
9 0 Outputs a byte to the serial port. The byte is output serially
according to the configuration for the serial port.
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