GPIB
372 User Manual
3Ć173
dressed to listen at the same time. You only need to set the primary adĆ
dress. The listen address is automatically computed by the GPIB controller
in charge.
Talk Address
Every device that can send data over the bus has a unique talk address.
When an device senses its talk address on the bus the device sends data.
Only one device on the bus may be addressed to talk at a time. The talk
address is determined by adding 64 to its primary address. Thus a device
with primary address 19 has a talk address of 83 (19+64). You only need to
set the primary address. The talk address is automatically computed by the
GPIB controller in charge.
The interface messages consist of universal and addressed commands and
may only be sent by the controller in charge. Most often these commands
occur at an operational level that is transparent to the user. That is, a GPIB
driver program handles all necessary housekeeping messages for universal
and address commands.
Universal commands are obeyed by all devices on the bus that have the
appropriate subsets of the IEEE Std 488.1-1987 interface functions impleĆ
mented. The controller sends universal commands by placing certain values
on the data lines with ATN asserted.
Addressed commands are sent to specific devices on the bus. The controlĆ
ler sends addressed commands by placing certain values on the data lines
with ATN asserted.
Table 3Ć52 shows the GPIB interface messages implemented in the 372.
TableĂ3Ć52:ăGPIB Interface Messages
Interface Message
Implemented
Device Clear (DCL)
Yes
Local Lockout (LLO)
Yes
Serial Poll Disable (SPD)
Yes
Serial Poll Enable (SPE)
Yes
Parallel Poll Unconfigure (PPU)
No
Go To Local (GTL)
Yes
Selected Device Clear (SDC)
Yes
Group Execute Trigger (GET)
No
Take Control (TCT)
No
Parallel Poll Configure (PPC)
No
Interface Messages
Summary of Contents for 372
Page 4: ......
Page 6: ...About this Manual ii ...
Page 14: ...Contents x ...
Page 22: ...Contents xviii ...
Page 30: ...Consignes de Sécurité Safety Summary xxvi ...
Page 31: ...Getting Started ...
Page 32: ......
Page 36: ...Overview Getting Started 1Ć4 ...
Page 90: ...Tutorial Ć About the Sample Disk Getting Started 1Ć58 ...
Page 91: ...Operating Basics ...
Page 92: ......
Page 108: ...Mounting the Device Under Test Operating Basics 2Ć16 ...
Page 110: ...Before and After Floating Measurement Operating Basics 2Ć18 ...
Page 111: ...Reference ...
Page 112: ......
Page 174: ...Pulse Mode Reference 3Ć62 ...
Page 176: ...Auxiliary Voltage Supply Reference 3Ć64 ...
Page 186: ...Adjusting the Graph Display Reference 3Ć74 ...
Page 190: ...Mathematical Operation Reference 3Ć78 ...
Page 210: ...Zoom Reference 3Ć98 ...
Page 217: ...Text Editing on the Graph 372 User Manual 3Ć105 Figure 3Ć46 ăClear Labels PopĆup Menu ...
Page 218: ...Text Editing on the Graph Reference 3Ć106 ...
Page 228: ...Hardcopy Reference 3Ć116 ...
Page 230: ...Initializing the 372 Reference 3Ć118 ...
Page 234: ...Time Stamp Reference 3Ć122 ...
Page 236: ...Adjusting CRT Brightness Reference 3Ć124 ...
Page 238: ...ID Information Reference 3Ć126 ...
Page 254: ...Floppy Disk System Reference 3Ć142 ...
Page 280: ...Sample Programs Reference 3Ć168 ...
Page 286: ...GPIB Reference 3Ć174 ...
Page 287: ...Appendices ...
Page 288: ......
Page 292: ...Appendix B Specifications Appendices AĆ4 ...
Page 312: ...Appendix B Specifications Appendices AĆ24 ...
Page 358: ...Appendix B Specifications Appendices AĆ70 ...