Syntax
Message Terminator and Message Separator
Entering Commands
In accordance with IEEE 488.2 and the VXIbus specification, the IntelliFrame Mainframe accepts any of the following message terminators:
H | LF^END | Linefeed code (hexadecimal 0A) with the END bit in the |
|
| Byte Available command asserted. |
H | LF | Linefeed code |
H | <dab>^END | Last data byte with the END bit in the Byte Available |
|
| command asserted. |
A semicolon separates one command from another when the commands appear on the same line. See Entering Commands.
The standards that govern the command set for the IntelliFrame Mainframe allows for a certain amount of flexibility when you enter commands. For example, you can abbreviate many commands or combine commands into one message that you send to the mainframe. This flexibility, called ªfriendly listening,º saves programming time and makes the command set easier to remember and use.
Command Characters The mainframe is not sensitive to the case of command characters. You can enter commands in either upper or lower case.
You can precede any command with white space characters. White space characters include a space or any combination of the ASCII control characters hexadecimal 00 through 1F except for the character 0A (new line). You must, however, use at least one space between the parameter and the command header.
Abbreviating Commands Most commands have a long form and a short form. The listing for each command in this section shows the abbreviations in upper case. For example, you can enter the query SYSTem:ERRor? simply as SYST:ERR? (or syst:err?).
The brackets around a mnemonic indicate that the mainframe assumes this level of the command header by default. It is not necessary, therefore, for this mnemonic to appear as part of the header when you send the command. For example, you can abbreviate the command
STATus:OPERational[:EVENt]?
to
STAT:OPER?
3±24 | VX1410A & VX1420A IntelliFrame Mainframe Instruction Manual |