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3 ieee address selection, 4 plotter applications – Measurement Computing Parallel488 User Manual

Page 20

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Section 3

Parallel To IEEE Operation

3.2

received

at a rate faster than can be output, the built-in 32,000 data buffer

stores the

characters until the IEEE bus can accept them. In the event

the buffer fills up entirely, the Parallel488 will hold off from accepting
data on the parallel port until sufficient buffer space is available to
proceed.

3.3 IEEE Address Selection

It is not necessary to match the IEEE address on your printer or plotter

to an address on the Parallel488. The interface addresses all IEEE 488 devices
to listen. The address of the Parallel488 is automatically adjusted so that
address conflicts will not occur.

3.4 Plotter Applications

Some applications programs, such as Lotus 1-2-3ª, allow a graphics

output to a plotter via the PC's parallel (LPT) port. The Parallel488 can be used
to interface an IEEE 488 (HP-IB) plotter to the PC.

An IBM PC based Graphics System