Deni 5300 Specifications download pdf (Page 21)

6 - GPIB Communication6 - GPIB Communication

6 - GPIB Communication

GPIB (IEEE-488)

The IEEE-488 or GPIB (General Purpose Interface Bus)

provides direct connection and control of the 5300 from

any appropriately equipped computer for the purpose

of data acquisition and display. MAGTROL factory

assistance is available if required.

HARDWARE INSTALLATION

A GPIB interface requires installation of an interface

card in the host computer and driver software resident

on the PC's hard disk. MAGTROL can supply the

National Instruments Corp. GPIB-PC2A

interface for

IBM

or compatible PCs.

SOFTWARE INSTALLATION

Formatting and initialization assistance is available from

MAGTROL Customer Service.

All GPIB data acquisition systems require the use of

termination characters to signal the conclusion of a data

exchange. The 5300 uses the Hewlett Packard - HPIB™

standard ASCII termination characters "Carriage Return

(CR) and Line Feed (LF)," in that order. On a read cycle,

the 5300 looks for the CR-LF to signal completion of

an instruction and transmits these characters upon

conclusion of a data write cycle.

PRIMARY ADDRESS

All instruments serviced on the bus have a separate

primary address code. The factory setting for the 5300

is fourteen (14). This code can be changed by changing

the settings of the DIP switch that are located on the

rear panel next to the GPIB connector. Change this

address only if there is a bus addressing conflict with

other instrumentation. Refer to the table in Figure 13

to set the DIP switch pattern - set to address 14.

Some PC interfaces (National GPIB-PC2A) will access

0 to 15 (4 bit) primary address numbers only. Other

interfaces may access up to 31 (5 bit code). The 5300

PA code range uses the 5 bit code format. Before

selecting a value greater than 15, check that your

particular interface has the 5 bit code capability.

Figure 13. GPIB Address Selection

(Address 14 shown)

SWITCH SEGMENT

12345

LSB MSB

ADDRESS

124816

1 2 3 4 5 6 7 8

Not Used

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 39 40

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Deni 5300 Specifications Page 21

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