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11.1 Using the GP-IB Interface
Overview of the GP-IB Interface
GP-IB Interface Specifications
WARNING
IM 253401-01E
This instrument is equipped with a GP-IB interface in accordance with your preference. This
interface permits remote control from a controller such as a personal computer, and output of
various data.
The table below shows functions that are available in each mode.
Mode
Addressable mode (mode A and mode B),
488.2 mode
Talk-only mode
Addressable Mode A
Data is output when the data output request command "OD" is received. This mode enables
transmission of data at a specified time.
Addressable Mode B
This mode does not require a measured data inquiry command. When data is requested by the
controller (personal computer, etc.), the data is output as the display is updated when
measurement is completed. Therefore, if an attempt is made to transmit data at intervals shorter
than the display intervals, the controller is forced to wait until the next display interval.
488.2 Mode
This mode allows commands conforming to the IEEE St'd 488.2-1987 protocol to be used.
Talk-only Mode
This mode does not require a controller. Data is output at certain intervals. This interval can be
set to any length. This mode is useful when the instrument is connected to a listener-only device
such as a printer.
Print Mode
This mode is useful when harmonic analysis data are output to the external plotter/printer. For
details, refer to page 10-17.
• Electrical & mechanical specifications : conforms to IEEE st'd 488-1978
• Functional specifications : refer to the table below
• Code : ISO (ASCII) code
• Address setting : 0 to 30 listener and talker addresses, or talk-only can be selected using the
front panel keys.
• Remote mode clear : remote mode can be cleared by pressing the LOCAL key on the front
panel. However, this is not possible when Local Lockout has been set by the controller.
Function
Subset name
source handshake
SH1
acceptor handshake
AH1
talker
T5
listener
L4
service request
SR1
remote local
RL1
parallel poll
PR0
device clear
DC1
device trigger
DT1
controller
C0
The connectors used in this function have protective covers. When the
covers are removed or when using connectors, the voltage ratings across
the measuring input and the ground become as follows:
Voltage across A, ±(V and A side) input terminals and ground 400 Vrms max.
Voltage across V terminal and ground
Put the protective cover on the connector when this function is not used.
Function
Listener Functions performed by key operations
(except for LOCAL key and power ON/OFF)
measured/computed/analysis data output request
setting parameters output request
error code output request
Talker
measured/computed/analysis data output
setting parameters output
error code output
status byte output
Talker
measured/computed/analysis data output
Description
full source handshake capability
full acceptor handshake capability
basic talker capability, serial polling, nontalker on MLA
(My Listen Address), talk-only capability
Basic listener capability, nonlistener to MTA (My Talk
Address), no listen-only capability
full service request capability
full remote/local capability
no parallel polling capability
full device clear capability
full device trigger capability
no controller function
600 Vrms max.
11
11-1
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