Talk mode will be cancelled by any of the following interface control codes being received:
12H
14H
03H
04H
18H
Talk mode will also be cancelled when the instrument has completed sending a response
message or has nothing to say.
The interface code 0AH (LF) is the universal command and response terminator; it must be the
last code sent in all commands and will be the last code sent in all responses.
The interface code 0DH (CR) may be used as required to aid the formatting of commands; it will
be ignored by all instruments. Most instruments will terminate responses with CR followed by LF.
The interface code 13H (XOFF) may be sent at any time by a listener (instrument or controller) to
suspend the output of a talker. The listener must send 11H (XON) before the talker will resume
sending. This is the only form of handshake control supported by ARC.
Full List of Addressable RS232 (ARC) Interface Control Codes
02H
03H
04H
06H
0AH
0DH
11H
12H
13H
14H
18H
GPIB Interface
When the GPIB interface is fitted the 24-way GPIB connector is located on the instrument rear
panel. The pin connections are as specified in IEEE Std. 488.1-1987 and the instrument
complies with IEEE Std. 488.1-1987 and IEEE Std. 488.2-1987.
GPIB Subsets
This instrument contains the following IEEE 488.1 subsets:
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Listen Address for any instrument.
Talk Address followed by an address not belonging to this instrument.
Universal Unaddress control code.
Lock Non-Addressable mode control code.
Universal Device Clear.
Set Addressable Mode.
Universal Unaddress control code.
Lock Non-Addressable mode control code.
Acknowledge that listen address received.
Line Feed (LF); used as the universal command and response terminator.
Carriage Return (CR); formatting code, otherwise ignored.
Restart transmission (XON).
Listen Address - must be followed by an address belonging to the required instrument.
Stop transmission (XOFF).
Talk Address - must be followed by an address belonging to the required instrument.
Universal Device Clear.
Source Handshake
Acceptor Handshake
Talker
Listener
Service Request
Remote Local
Parallel Poll
Device Clear
Device Trigger
Controller
Electrical Interface
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SH1
AH1
T6
L4
SR1
RL1
PP1
DC1
DT0
C0
E2
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