Boonton 4240 RF Power Meter Bedienungsanleitung PDF herunterladen (Seite 67)

Boonton 4240 Series RF Power Meter

*ESR?

Description: Return the current value of the Standard Event Status Register, then clear the register. This register

has bits assigned to a number of possible events or conditions of the instrument. When the event

occurs, the corresponding bit is latched. The register value is read using this command.

Individual bits may be enabled or disabled for SRQ generation using the ESE mask (see *ESE

command). The following table shows the bit assignments in the Standard Event Status Register:

Bit Value Definition

0 1 Operation Complete Flag 1 = all current operations have completed execution.

= a r

alway

Syntax:

Model#, Serial#, Version# >

Description: Clears the OPC (Operation Complete) status flag. This command is issued before the command to

ll never be returned.

PC?

Description:

ns are complete. If pending operations are not yet complete, it does not return.

to indicate operations complete. Otherwise, does not return.

1 2 Not used

2 4 Not used

r 3 8 Device Dependent Error 1 = the instrument encountered a device dependent erro

lways 4 16 Not used a returns 0

1 5 32 Command Error emote interface command error exists.

6 64 Not used s returns 0

7 128 Not used alw s returns 0

Syntax: *ESR?

Returns: Current Value of Event Status Register (0 to 255)

*IDN?

Description: Return the instrument identification string. This string contains the manufacturer, model number,

serial number and firmware version number.

*IDN?

Returns: < Mfgr,

be checked for completion. After this, the flag may be queried by *OPC? until a value of one is

returned, indicating the command has completed. Note that the query is not a true query - a value

of zero wi

Syntax: *OPC

Argument: None

This command examines the OPC (Operation Complete) status flag and returns a “1” if all

pending operatio

Syntax: *OPC?

Returns: Always returns 1

Remote Operation

5-7

1 2 ... 62 63 64 65 66 67 68 69 70 71 72 ... 127 128

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