Measurement-computing DAC488 v.1 Uživatelský manuál Strana 27
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DAC488 User’s Manual DAC488 Power & Assembly 21
To Verify the Port Voltage – 10-Volt Range
1. Send the following command string to the DAC488:
C0 P1 A0 R3 V10 X where:
•
C0
= Direct Control Mode •
R3
= 10-Volt Range
•
P1 = Port 1 • V10 = Output +10 Volts
•
A0 = Autorange Off • X = Execute
2. Send the following command string to the 199 DMM:
F0 R3 Z0 N1 S1 X where:
•
F0 = DC Volts • N1 = Scanner Channel 1
•
R3
= 30-Volt Range •
S1
= 5 ½ Digit Resolution
•
Z0 = Zero Disabled • X = Execute
3. For each test, the specific Value Output (
V) command, its commanded output voltage, and its
corresponding Low Limit and High Limit, are as follows:
•
V10 = Output +10 V +9.985 ≤ Reading ≤ +10.015 Volts
•
V5 = Output +5 V +4.990 ≤ Reading ≤ +5.010 Volts
•
V1 = Output +1 V +0.994 ≤ Reading ≤ +1.006 Volts
•
V0 = Output 0 V -0.005 ≤ Reading ≤ +0.005 Volts
•
V-1 = Output -1 V -1.006 ≤ Reading ≤ -0.994 Volts
•
V-5 = Output -5 V -5.010 ≤ Reading ≤ -4.990 Volts
•
V-10 = Output -10 V -10.015 ≤ Reading ≤ -9.985 Volts
To Verify the Port Voltage – 5-Volt Range
1. Send the following command string to the DAC488:
C0 P1 A0 R2 V5 X where:
•
C0 = Direct Control Mode • R2 = 5-Volt Range
•
P1 = Port 1 • V5 = Output +5 Volts
•
A0 = Autorange Off • X = Execute
2.
Send the following command string to the 199 DMM:
F0 R3 Z0 N1 S1 X
where:
•
F0 = DC Volts • N1 = Scanner Channel 1
•
R3
= 30-Volt Range •
S1
= 5 ½ Digit Resolution
•
Z0 = Zero Disabled • X = Execute
3.
For each test, the specific Value Output (
V
) command, its commanded output voltage, and its
corresponding Low Limit and High Limit, are as follows:
•
V5 = Output +5 V +4.9920 ≤ Reading ≤ +5.0080 Volts
•
V2.5 = Output +2.5 V +2.4945 ≤ Reading ≤ +2.5055 Volts
•
V1
= Output +1 V +0.9960 ≤ Reading ≤ +1.0040 Volts
•
V0 = Output 0 V -0.0030 ≤ Reading ≤ +0.0030 Volts
•
V-1 = Output -1 V -0.9960 ≤ Reading ≤ -1.0040 Volts
•
V-2.5 = Output –2.5 V -2.4945 ≤ Reading ≤ -2.5055 Volts
•
V-5 = Output -5 V -4.9920 ≤ Reading ≤ -5.0080 Volts
- 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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