Xantrex Technology XDC manual Message Terminators, Address Range, Service Request and Polling

Appendix D. GPIB

Overview

This power supply can be programmed from a remote terminal using a General Purpose Interface Bus (GPIB) interface. Communications over the GPIB interface meet IEEE 488.2 standards and are SCPI compliant.

Codes and Standards

The GPIB interface of the this Programmable DC Power Supply has been implemented according to IEEE standard 488.1-1987, “IEEE Standard Digital Interface for Programmable Instrumentation.”

The communications protocol complies with IEEE 488.2-1992.

Message Terminators

The GPIB End of message (EOM) terminators can be the END message (EOI), the ASCII code for line feed (LF) or both.

The power supply terminates responses with line feed (LF).

Address Range

Primary The power supply will respond to any GPIB address in the range 1 to 30.

Address

Secondary The power supply does not support secondary addressing.

Address

Service Request and Polling

The power supply's serial poll responses and SRQ generation use an IEEE 488.2 reporting structure. See“Status Registers” on page 142.

The Request Service bit (bit 6) in the Status Byte will generate a service request (SRQ) on the GPIB.

The power supply can be set up to generate a service request (SRQ) at power-on. Use the command:

SYSTem:COMMunicate:GPIB:PONSrq [ONOFF10]

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