Ametek 7280 Instruction Manual page 77

This menu has five controls affecting the GPIB computer interface and a key for
accessing the Communications Monitor display, as follows:-
GPIB ADDRESS
This control sets the GPIB communications address to any value between 0 and 31.
Each instrument used on the GPIB bus must have a unique address setting.
GPIB TERMINATOR
This has three possible settings, as follows:-
CR
A carriage return is transmitted at the end of a response string, and in addition the
GPIB interface line EOI (end of instruction) is asserted.
CR/LF
A carriage return followed by a line feed are transmitted at the end of a response
string, and in addition the GPIB interface line EOI (end of instruction) is asserted
with the line feed character.
EOI
The GPIB interface line EOI (end of instruction) is asserted at the end of the
response string. This gives the fastest possible operation since other termination
characters are not needed.
SRQ MASK
The instrument has the ability to generate a service request on the GPIB interface, to
signal to the controlling computer that urgent attention is required. The request is
generated when the result of a logical bit-wise AND operation between the Service
Request Mask Byte, set by this control as a decimal value, and the instrument's Status
Byte, is non-zero. The bit assignments for the Status Byte are as follows:-
Chapter 5, FRONT PANEL OPERATION
Figure 5-20, GPIB Settings Menu
5-31