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IEEE command format
IEEE commands are comprised of characters from the ASCII set. A series of commands
can be used to simulate the manual operation of the 9814.
The commands must be in one of the following formats:
1. A single uppercase character (A to Z).
2. Upper case character followed by a number.
3. A signed decimal number (8 digits maximum).
Commands may be sent individually or built into a string separated with a ‘slash charac-
ter’ (/). For the command string to execute it must be terminated with either a line feed
or carriage return character.
IEEE command execution
Before an IEEE command can be executed 4 conditions must be met.
1. The 9814 must be switched to ‘remote’ on the front panel.
2. IEEE cable and controller connected. The IEEE address and the talk/listen
switches set correctly on the rear panel switch.
3. The command must be a valid command (invalid commands are ignored).
4. The command must be followed by a valid terminator.
IEEE command list
D Transmit display to bus controller bus controller.
E1 to E4 Select 9814 action upon output error detection.
G1 or G2 Set/Cancel Group execute trigger response.
H Set output to full scale.
I Select serial poll operation.
K1 or K2 Enable/Disable Front panel controls.
L Set output to zero.
Pn Change output by ‘n’ percent.
R1 to R4 Select range from 10mV to 10 V
R1 - 10mV R2 - 100mV
R3 - 1V R4 - 10V
T1 or T2 Set terminator character appended to a transmission.
Z Take present output as Zero Offset.
/ Command separator.
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