Measurement-computing DAC488 v.1 Manual do Utilizador descarregar pdf (Página 71)

DAC488 User’s Manual DAC488 Commands 65

EXAMPLE 3: Unrecognized Command.

PRINT#1,"OUTPUT09;Z4X"

Line 1: Send an invalid command to the DAC488.

PRINT#1,"OUTPUT09;E?"

Line 2: Request error status. Note: ERROR LED should be on.

PRINT#1,"ENTER09"

INPUT#2,A$

PRINT A$

Line 5: Display shows E1 (unrecognized command). Note: ERROR LED

should be off.

PRINT#1,"OUTPUT09;E?"

Line 6: Request error status.

PRINT#1,"ENTER09"

INPUT#2,A$

PRINT A$

Line 9: Display shows E0 since error condition has been cleared after reading

error status.

1 2 ... 66 67 68 69 70 71 72 73 74 75 76 ... 113 114

User's Manual 1
Introduction to this Manual 3
Table of Contents 4
7 - DAC488 Commands 5
8 - Troubleshooting 5
A - Appendix 5
DAC488 Overview 1 7
Accessories 8
Specifications 8
DAC488 Setup 2 11
Hardware Setup 12
Default Settings 13
Mode Selection 13
Analog Output Ports 13
Digital I/O Port 14
DAC488 Power & Assembly 3 19
Rack Mount 23
Bench Top 23
Power-Up Activation 24
CAUTIONCAUTION 24
Programming Examples 25
Performance Verification 26
DAC488 Operation 4 29
Port Triggering 30
Internal Buffer 32
Control Modes 34
Waveform Control Mode 35
Multiple Port Synchronization 36
User-Defined System Defaults 39
IEEE 488 Bus Support 39
Bus Commands 40
Bus Addresses 40
Bus Terminators 40
IEEE 488 Background 5 41
Bus Lines & Bus Commands 42
Handshake Lines 43
Data Transfer Lines 43
Bus Command Groups 44
More On Service Requests 45
DAC488 Calibration 6 47
Manual Calibration Procedure 48
BASIC Calibration Program 49
DAC488 Commands 7 57
Command Groups 59
Command Summary 60
Command Reference 63
@ - Trigger On Command 64
A - Autorange 65
B - Buffer Data 66
C - Control Mode 67
D - Digital Output 69
E? - Query Error Status 70
F - Buffer Definition 72
G - GET Trigger Mask 73
H - Offset Calibration 74
I - Interval 75
J - Gain Calibration 76
K - End-Or-Identify Control 77
L - Buffer Location 78
M - Service Request Mask 79
N - Number of Cycles 80
O - Output Format 81
P - Port Select 82
Q - External Trigger Mask 83
R - Range Select 84
S - System Defaults 85
T - Command Trigger Mask 86
U - User Status 87
V - Value Output 90
W - Test 91
X - Execute 92
Y - Bus Terminator 93
? - Query 94
Serial Poll Status Byte 95
Troubleshooting 8 97
Query Error Status 98
Appendix A 99
IEEE 488 Bus Commands 100
ASCII Codes 101
ASCII Code Details 103
Decimal Values 32 to 63 – LAG 105
Decimal Values 64 to 95 – TAG 106
Abbreviations 112

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