Contents
GPIB-232CT User Manual
xiv
© National Instruments Corp.
Parallel Poll..................................................................7-12
Trigger .........................................................................7-12
Local ............................................................................7-12
Control .........................................................................7-12
Device Clear ................................................................7-13
Chapter 8
G Mode Functions
............................................................................8-1
Points to Remember ...................................................................8-1
echo - Echo Characters Received from Serial Port ....................8-3
eos - Change/Disable GPIB EOS Termination Mode ................8-5
id - Identify System....................................................................8-7
onl - Place the GPIB-232CT Online/Offline..............................8-8
spign - Ignore Serial Port Errors ................................................8-9
spset - Change Serial Port Parameters .......................................8-10
srqen - Enable/Disable Setting of SRQ ......................................8-12
stat - Return GPIB-232CT Status...............................................8-14
xon - Change Serial Port XON/XOFF Protocol.........................8-20
Appendix A
Multiline Interface Messages
.......................................................A-1
Multiline Interface Messages .....................................................A-2
Interface Message Reference List ..............................................A-4
Appendix B
Status Information
...........................................................................B-1
Status Bits ..................................................................................B-1
GPIB Error Codes ......................................................................B-6
Serial Port Error Codes ..............................................................B-10
Appendix C
The Serial Connection
....................................................................C-1
RS-232C.....................................................................................C-1
Interfacing the GPIB-232CT to a DCE ......................................C-3
Interfacing the GPIB-232CT to a DTE ......................................C-5
Buffering and Handshaking .......................................................C-6
Hardware Handshake...................................................C-7
XON/XOFF .................................................................C-8
Appendix D
Operation of the GPIB
...................................................................D-1
Types of Messages .....................................................................D-1
Talkers, Listeners, and Controllers ............................................D-1
