Measurement Computing Micro488/p - Manual (Page 20)

3-2 09-27-02 Command Descriptions
System Commands:
A (ESCAPE)
Q (XON)
S (XOFF)
EC;n (ECHO)
H;n (HARDWARE HANDSHAKE)
I (INIT)
TB;n (IEEE BUS TERMINATOR)
TC;n (SERIAL TERMINATOR)
X;n (XOFF/XON)
3.2 Command Description Format
Each command description includes syntax, response, bus states,
and examples.
3.2.1 Syntax
The syntax portion of the command description describes the proper command
syntax which must be sent to the Micro488/p using the IBM BASIC PRINT#
command, or its equivalent in other languages, to the COM port. The following
conventions apply throughout the syntax descriptions:
• The Micro488/p is case insensitive; i.e., system commands may be in upper
or lower case.
• Commands to an individual IEEE device must conform to the device's
particular syntax.
• Items in lower case, such as addr or n, represent parameters which must be
substituted with an appropriate value.
• Numeric parameters (those that are given as numbers) are decimal unless
preceded by &H, in which case they considered to be hexadecimal. For
example, 100 is decimal 100, &H64 is hexadecimal 64 which equals decimal
100, &HFF is decimal 255, and 0FF is invalid because F is not a valid
decimal digit.
Note: Bus addresses are the only exception to the numeric parameters rule.
• Bus addresses, both primary and secondary, must be specified as two-digit
decimal numbers. Hexadecimal bus addresses are not allowed.