HP 8642A - Page 38

Model 8642A/B Operation
HP-IB CONTENTS
HP-IB REMOTE OPERATION 3-7
HP-IB ADDRESS 3-8
Available Addresses 3-8
To Display the Current Address 3-8
ENT ADRS 3-8
To Change the Address 3-8
HP-IB CAPABILITIES 3-9
Overview 3-9
HP-IB Capabilities 3-9
fable 3-1. HP-IB Capability
ReferenceTable 3-10
DATA INPUT 3-11
Overview 3-11
Table 3-2. Data Input Example 3-11
Program Codes 3-11
Input Syntax 3-11
Table 3-3. Relationship Between
Keystrokes and HP-IB Code
Sequences 3-12
Sequence Dependency 3-12
Figure 3-3. Flowcharts for
Sequence Dependency 3-13
Valid Character Entry 3-14
DATA OUTPUT 3-15
Overview 3-15
Output Messages (OH, OE, OC) 3-16
Output Active Function (OA) 3-18
Table 3-4. Output Active Function
String Formats 3-19
Output HI, LO Status (OL) 3-20
Output Display Information 3-21
Table 3-5. Output Display; Binary
Weight of Annunciators 3-22
Table 3-6. Error Code and Message
Recovery Example Program 3-23
CLEAR 3-24
Overview 3-24
REMOTE, LOCAL 3-25
Local to Remote Transition 3-25
LOCAL 3-25
Remote to Local Transition 3-25
LOCAL LOCKOUT, SET LOCAL 3-26
Local Lockout 3-26
Clear Lockout/Set Local 3-26
SERVICE REQUEST 3-27
Overview 3-27
RQS MASK 3-27
Clearing the Service
Request Message 3-27
Figure 3-4. The Status Byte and
RQS Mask 3-28
STATUS BYTE 3-29
Overview 3-29
Reading the Status Byte 3-29
Clearing the Status Byte 3-29
Table 3-7. HP-IB Status Byte
Bit Definitions 3-30
ADDITIONAL HP-IB INFORMATION 3-31
Abort 3-31
Trigger 3-31
Status Bit 3-31
Controller Capabilities; Self Test
and Calibration 3-31
Display Control Via HP-IB 3-31
Remote Indicators 3-31
Disabling the Listen
Addressed State 3-31
Disabling the Talk Addressed State 3-31
HP-IB CODES SUMMARY 3-32
Table 3-8. Signal Generator Function
to HP-IB Code 3-32
Table 3-9. Signal Generator HP-IB
Code to Function 3-33
HP-IB RELATED FRONT-PANEL KEYS 3-34
Figure 3-5. HP-IB Related
Front-Panel Keys 3-34
HP-IB RELATED TERMS 3-35
3-5