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Table 3-4. ieee 488 (gpib) bus interface functions, Ieee 488 (gpib) bus interface functions -13, Ieee 488 (gpib) bus command mode messages -13 – KEPCO ABC-DM SERIES User Manual

Page 45: E 3-4, 5 and

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ABC 040104

3-13

TABLE 3-4. IEEE 488 (GPIB) BUS INTERFACE FUNCTIONS

FUNCTION

SUBSET

SYMBOL

COMMENTS

Source Handshake

SH1

Complete Capability (Interface can receive multiline messages)

Acceptor Handshake

AH1

Complete Capability (Interface can receive multiline messages)

Talker

T6

Basic talker, serial poll, unaddress if MLA (My Listen Address) (one-byte
address)

Listener

L4

Basic listener, unaddress if MTA (My Talk Address) (one-byte address).

Service Request

SR1

Complete Capability. The interface sets the SRQ line true if there is an
enabled service request condition.

Remote/Local

RL1

Complete capability. Interface selects either local or remote information. In
local mode the ABC executes front panel commands, but can be set to
remote mode via IEEE 488 bus. When in Remote mode all front panel keys
are disabled except LOCAL. LOCAL key can be disabled using keypad
lockout command (see Appendix B, PAR. B.91) so that only the controller
or a power on condition can restore Local mode.

Parallel Poll

PP0

No Capability

Device Clear

DC1

Complete Capability. ABC accepts DCL (Device Clear) and SDC (Selected
Device Clear).

Device Trigger

DT1

Respond to *TRG and trigger functions.

Controller

C0

No Capability

TABLE 3-5. IEEE 488 (GPIB) BUS COMMAND MODE MESSAGES

MNEMONIC

MESSAGE

DESCRIPTION

COMMENTS

ATN

Attention

Received

DAC

Data accepted

Received or Sent

DAV

Data Valid

Received or Sent

DCL

Device Clear

Received (see PAR. 3.4.1)

IFC

Interface Clear

Received

MLA

My Listen Address

Received

MTA

My Talk Address

Received

OTA

Other Talk Address

Received

RFD

Ready for Data

Received or Sent

SDC

Selected Device Clear

Received

SPD

Serial Poll Disable

Received

SPE

Serial Poll Enable

Received

SRQ

Service Request

Sent

UNL

Unlisten

Received

UNT

Untalk

Received