Section 5
5-8
5.4. COMMAND LANGUAGE
The commands for IEEE-488 and RS232C mainly correspond to the labels assigned to the front
panel menus. Throughout this document when examples are given they apply to commands
through the RS232C interface or through the IEEE-488 interface. The examples will not show the
termination characters since these differ for each of the interfaces (See sections 5.2.2 and 5.3.2).
5.4.1. General Syntax For Commands.
The 6675A uses a sophisticated command parser which can usually determine which
command was desired, even if the command is entered incorrectly.
No command used in the 6675A has an embedded space in its name, spaces (0x20) are used
only to separate command names from their parameters.
The comma "," must delimit all multiple arguments used in a command sequence.
5.4.2. General Syntax For Numbers.
Numeric parameters may have up to 30 characters, and although the 6675A will accept
numeric parameters in the range ±2.2E-308 through ±1.8E308, the useful range of numbers
is between ±1.0E-8 and 1.0E5.
5.5. REMOTE AND LOCAL OPERATION
The 6675A can be operated using the front panel keys or it can be operated remotely using a
remote controller. In addition the 6675A can be placed in a local lockout condition at any time by a
command from the controller. When combined, the local, remote, and lockout conditions yield four
possible operating states:
Local:
The 6675A responds to local and remote commands. This is also called "Front Panel
Operation". Only remote commands that do not affect the state of the 6675A are allowed to
execute.
Local With Lockout:
Local with lockout is identical to Local except that the 6675A will go into remote with
lockout instead of the remote state when the 6675A receives a remote command.
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