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Interfacing the XMP 2600
1
Interfacing the
XMP 2600
The XMP 2600 has two types of interfaces used for remotely controlling it: a GPIB
(IEEE 488) Interface and a Serial (RS232) Interface. The two interfaces differ only in the
communication hardware and protocol. Input and Output Queues, Command and Query
Parsing and Execution are identical no matter which interface is being used to remotely
control the XMP 2600.
The XMP 2600 has two remote controlling modes. Unless otherwise required, the IEEE
488.2 compatible mode should be used. The controlling mode in effect is DIP-Switch
selected (at the rear panel – please refer to the user's guide) and may be overridden by a
Remote command.
The GPIB interface
The GPIB Interface is an IEEE 488.1 hardware interface with IEEE 488.2 capabilities.
The capabilities of the GPIB Interface are summarized below:
The size of the Input and Output Queues is 256 Bytes.
SH1 ........................ Source handshake - FULL.
AH1 ....................... Acceptor handshake - FULL.
T6........................... Talker - basic, serial poll, unaddressed if MLA.
L3........................... Listener - basic, listen only, unaddressed if MTA.
SR1 ........................ Service request - FULL.
RL1 ........................ Remote local - FULL.
PP1/PP2 ................. Parallel poll - remote and local configuration.
DC1........................ Device clear - FULL.
DT1........................ Device trigger - FULL.
The XMP 2600 uses an Input Queue rather than an Input Buffer (as
required by IEEE 488.2). This enhancement practically prevents Lock-
Ups.
XMP 2600 Programming Manual
The GPIB interface
rev. 1.1
1
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