IM 253401-01E
11-1
11
GP-IB Interface
11.1 Using the GP-IB Interface
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.
Overview of the GP-IB Interface
The table below shows functions that are available in each mode.
Mode Function
Addressable mode (mode A and mode B), Listener
Functions performed by key operations
488.2 mode (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
Talk-only mode Talker measured/computed/analysis data output
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.
GP-IB Interface Specifications
• 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 Description
source handshake SH1 full source handshake capability
acceptor handshake AH1 full acceptor handshake capability
talker T5 basic talker capability, serial polling, nontalker on MLA
(My Listen Address), talk-only capability
listener L4 Basic listener capability, nonlistener to MTA (My Talk
Address), no listen-only capability
service request SR1 full service request capability
remote local RL1 full remote/local capability
parallel poll PR0 no parallel polling capability
device clear DC1 full device clear capability
device trigger DT1 full device trigger capability
controller C0 no controller function
WARNING
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 600 Vrms max.
Put the protective cover on the connector when this function is not used.
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