Measurement-computing Digital488 Uživatelský manuál stáhnout pdf (Strana 35)

Section 3 Command Descriptions

3.5

Configure Cn

Ports 1 thru 5 are configured as inputs or outputs with the

Configure

command.

Each port is eight bits wide. At power-on, all ports are initialized as inputs. The

Configure

command is usually the first command to be sent after power on. All ports

programmed as outputs will be set to a logic zero after receiving the

Configure

command. The actual output level is dependent on the

Invert

command (

I16

)

Mode n (0 thru 5) defines which ports are input and output

Port 5

4 3 2 1

in in in in in

in in in in out

in in in out out

in in out out out

in out out out out

out out out out out

in = programmed as an input port

out = programmed as an output port

Example:

CLEAR 718

reset the

Digital488

OUTPUT 718;"C1X"

select port 1 as output, ports 2 thru 5

as inputs

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 82 83

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Measurement-computing Digital488 Uživatelský manuál Strana 35