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SECTION 7.0
IEEE-488.2 INTERFACE
7.1 INTRODUCTION
The Instruments For Industry, Inc. (IFI) Amplifiers can be operated remotely from a personal
computer having an IEEE-488 interface. This interface allows the amplifier to be remotely
controlled over the General Purpose Interface Bus (GPIB) by sending commands to the amplifier.
Additionally, amplifier status and forward and reverse power readings may be read over the GPIB.
All functions can be controlled by coded messages sent over the interface bus via the 24-pin socket
connector on the rear panel of the unit. IEEE-488.2 Standard is implemented, which defines the
protocols and syntax of commands. The GPIB command codes for the IFI Amplifier series are
discussed on subsequent pages and, for ease of identification; the command codes are identified
within the text by bold capital characters. For full information on the IEEE protocols and syntax the
IEEE-488.2 Standard should be consulted.
7.2 REMOTE INITIALIZATION
When the amplifier receives a command over the GPIB, it automatically switches to REMOTE
operation. Pressing the LOCAL key on the front panel returns the unit to normal manual local
operation.
