Agilent Technologies 54645A Instrukcja Obsługi Pobierz pdf (Strona 51)

Lockout Command

To lockout the front panel controls use the system command LOCK. When

this function is on, all controls (except the power switch) are entirely locked

out. Local control can only be restored by sending the command

:SYSTEM:LOCK OFF.

Restoring Local Control

Cycling the power will also restore local control, but this will also reset certain

RS-232-C states.

Programming over RS-232-C

Lockout Command

4-10

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HP 54645A Oscilloscope and 2
HP 54645D Mixed-Signal 2
Oscilloscope 2
Programming the Oscilloscope 3
In This Book 5
Contents 8
4 Programming over RS-232-C 9
6 Status Reporting 9
Introduction 8–2 10
Contents–4 11
Introduction to Programming 12
Talking to the Instrument 14
Program Message Syntax 15
Duplicate Mnemonics 18
Query Command 19
Program Header Options 20
Program Data Syntax Rules 21
Program Message Terminator 23
Selecting Multiple Subsystems 23
Programming Getting Started 24
Initialization 26
Autoscale 27
Setting Up the Instrument 27
Example Program 28
Using the DIGitize Command 29
String Variables 32
Numeric Variables 33
Multiple Queries 35
Instrument Status 35
Programming over HP-IB 36
Interface Capabilities 38
Command and Data Concepts 38
Addressing 39
Communicating Over the Bus 40
Bus Commands 41
Programming over RS-232-C 42
Interface Operation 44
Configuring the Interface 48
Lockout Command 51
Programming and Documentation 52
Conventions 52
Command Set Organization 54
Table 5-1 55
Alphabetic Command Reference 55
The Command Tree 57
Truncation Rules 61
Infinity Representation 62
Response Generation 62
Program Examples 64
Status Reporting 66
Figure 6-1 68
Figure 6-2 71
Figure 6-2 (Continued) 72
Status Byte Register (SBR) 74
Trigger Event Register (TRG) 76
User Event Register (UER) 79
Local Event Register (LCL) 79
Enable Mask Value 80
Block COMP and FAIL 0 80
Enable COMP, block FAIL 1 80
Enable FAIL, block COMP 2 80
Enable COMP and FAIL 3 80
Arm Event Register (ARM) 82
Error Queue 83
Output Queue 84
Message Queue 84
Key Queue 84
Clearing Registers and Queues 84
Figure 6-3 85
Installing and Using the 86
Programmer’s Reference 86
Reference 87
<drive>:\install 88
To start the help file 90
Introduction 93
Suffix Multipliers 94
Programmer’s Quick Reference 100
Commands and Queries 100

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