Measurement-computing Micro 488/EX rev.2.1 Instrukcja Użytkownika Pobierz pdf (Strona 167)

Section 6 Controller Pass-Thru Operation

6.3

SW3 View for IEEE Address Selection

OPEN

12345678

DOT

Switch

Side

View

0 x 16

1 x 8

0 x 4

1 x 2

0 x 1

= 0

= 8

= 0

= 2

= 0

IEEE Address = 10

6.4 Talk Back On Terminator

A switch selectable talk back feature is included to provide bi-directional

communication with the IEEE device. Whether the talk back feature should be enabled

is dependent on the application.

SW1-7 is used to determine whether the interface should address the attached bus

device to talk after sending the selected IEEE bus terminator(s). This feature is

commonly used to provide bi-directional communication with a single IEEE

instrument. Talk back will only occur if there is no serial data to output to the IEEE

device.

SW1 View for Talk-Back Selection

OPEN

12345678

DOT

Switch

Side

View

OPEN

12345678

Talk Back on

Terminator Disabled

Talk Back on

Terminator Enabled

When the serial input buffer becomes empty, the Micro488/EX checks the last

characters sent to the IEEE bus device. If these were the IEEE bus terminators and

Talk-Back is enabled, the IEEE bus device is addressed to talk. Any data received by

the Micro488/EX from the bus device is sent to the serial host.

1 2 ... 162 163 164 165 166 167 168 169 170 171 172 ... 217 218

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