Measurement-computing Serial488A Instrukcja Użytkownika Pobierz pdf (Strona 49)

3.15

After configuration, turn on the plotter and the

Serial488A

. The

Serial488A

front panel LEDs should all light momentarily while it performs an internal ROM and

RAM test. All LEDs should go out except for the Power and Talk LED. The Talk LED

indicates that the

Serial488

has detected the plotter on the IEEE bus and has

addressed it to listen.

When the serial host begins to send the

Serial488

data, the Receive LED will

flash. If it does not, this indicates that the interface is not receiving data from the serial

host. Verify the cables are connected properly and the serial cable wiring. Verify the

serial data format, word length, stop bits and parity.

3.6 Printer Applications

Most of the information given for plotter applications applies to applications for

interfacing IEEE 488 printers to a serial host. Some high end printers have a

secondary command setting which must be disabled for the

Serial488A

to control

them. The

Serial488

does not use secondary commands to control IEEE peripherals,

such as printers or plotters. Refer to the printer's instruction manual if the is a question

as to whether the printer requires secondary commands.

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Measurement-computing Serial488A Instrukcja Użytkownika Strona 49