HP 8753E manual Plot absolute HP-GL command PA, Label HP-GL comman& Ia

,.,., _ _ .,., ,.,. _ ,... :... ;. _.,_ _ .,;_

‘I’he ‘~~~~;:~~~~~~~,;~ sequencing co-and (in the Sequencing Special m&ions

.._ ,.,...A..;,......>A:.:<~: :::::

menu) sends the HP-GL command string to the analyzer’s HP-GL address. The address of the analyzer’s HP-GL graphics interface is always offset from the instrument’s HP-IB address by 1:

nIf the current instrument address is an even number: HP-GL address = instrument address + 1.

nIf the current instrument address is an odd number: HP-GL address = instrument address -1.

Special Commands

Two HP-GL commands require special consideration when used in local operation or in sequencing. These are explained below:

Plot absolute (HP-GL command: PA)

The syntax for this command is PAx,y where x and y are screen location coordinates separated by a comma.

Label (HP-GL comman& Ia)

The syntax for this command is LB(text][etx]. The label command will print ASCII characters until the etx command is seen. The etx is the ASCII value 3 (not the ASCII character 3).

The analyzer title function does not have the ASCII value 3, so the instrument allows the LB

............................................. ..... ..; “‘..::::.:.: .y ., .;

co-and to be terminated Me the ~~~~~~~;~~ co-ad (accessed by pressing I-J

:	... ;	,,;	.,.;;, ;;;	.		........ ................. ....................	--
gfj!#~ ;$!&#g#g ;g#z##gj :~~~~~~).
:i_i	i_i_ ............1__..... .<>>...		:.:.:.:		.......... ......	...............

Entering Sequences Using HP-IB

You can create a sequence in a computer controller using HP-IB codes and enter it into the analyzer over HP-IB. This method replaces the keystrokes with HP-IB commands. The following is a procedure for entering a sequence over HP-IB:

1.Send the HP-IB command NEWSEQx where x is a number from 1 to 6.

2.Send the HP43 commands for the measurement.

3.Terminate with the HP-IB command BONM (done modify).

Reading Sequences Using HP-II3

An external controller can read the commands in any sequence (in HP-IB command format). Send the following command to the analyzer:

OUTPSEQx where x is a number from 1 to 6.

Allocate an adequate amount of string variable space in the external controller and execute an ENTER statement.

6-162 Application and Operation Concepts