Exfo FVA-3150 Variable Attenuator Instrukcja Użytkownika Pobierz pdf (Strona 58)

Controlling Your Variable Attenuator Remotely

52 FVA-3150

Error Messages

System and device-specific errors are managed by the FVA-3150 Variable

Attenuator. The generic format for error messages is illustrated in the

following figure.

As shown in the above figure, the message contains three parts: the error

number, error description, and device-dependent information. All error

messages are stacked in a FIFO buffer. When there is at least one message

in the buffer, bit 2 of the Status Byte Register is set to 1. Use the SYST:ERR?,

ERR?, or LERR? command to read the most recent message. The error

message buffer is initialized when starting the Variable Attenuator, when

executing the *CLS command, or by reading the last message stored in the

buffer.

“

;

<Device dependent

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information>

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Exfo FVA-3150 Variable Attenuator Instrukcja Użytkownika Strona 58