Agilent Technologies 8935 Series Manual do Utilizador descarregar pdf (Página 46)

46 Chapter 1

O:\Manuals\E6380A_Progguid\Book\Usehpib.fm

Using HP-IB

IEEE 488.1 Remote Interface Message Capabilities

Clear

Lockout/

Set Local

Yes The Test Set returns to local mode

(front-panel control) and local lockout is

cleared when the REN bus control line goes

false. When the Test Set returns to local mode

the output signals and internal settings

remain unchanged, except that triggering is

set to TRIG:MODE:SETT FULL;RETR REP.

REN

Service

Request

Yes The Test Set sets the Service Request (SRQ)

bus line true if any of the enabled conditions

in the Status Byte Register, as defined by the

Service Request Enable Register, are true.

SRQ

Status Byte Yes The Test Set responds to a Serial Poll Enable

(SPE) bus command by sending an 8-bit

status byte when addressed to talk. Bit 6 will

be true, logic 1, if the Test Set has sent the

SRQ message

SPE

SPD

STB

MTA

Status Bit No The Test Set does not have the capability to

respond to a Parallel Poll.

PPE

PPD

PPU

PPC

IDY

Clear Yes This message clears the Input Buffer and

Output Queue, clears any commands in

process, puts the Test Set into the Operation

Complete idle state and prepares the Test Set

to receive new commands. The Device Clear

(DCL) or Selected Device Clear (SDC) bus

commands

• do not change any settings or stored data

(except as noted previously)

• do not interrupt front panel I/O or any Test

Set operation in progress (except as noted

previously)

• do not change the contents of the Status

Byte Register (other than clearing the

MAV bit as a consequence of clearing the

Output Queue).

The Test Set responds equally to DCL or SDC

bus commands.

DCL

SDC

MLA

Table 1-3 Test Set IEE 488.1 Interface Message Capability

Message

Type

Implemented Response IEEE 488.1

Message

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 328 329

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