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Chapter 4 516 Devices and DAQCard-500/700 Devices
DAQ Hardware Overview Guide 4-4 www.ni.com
516 Devices and DAQCard-500/700 Interval
Counter/Timer Operation
This section describes the operation of the 516 devices and the
DAQCard-500/700 interval counter/timer operation.
DAQCard-700 Counter/Timers
The DAQCard-700 contains an onboard MSM82C54 Programmable
Interval Timer chip that has three independent 16-bit counter/timers.
NI-DAQ uses the three counter/timers from the 82C54 as follows:
• Counter 0 is used for data acquisition operations.
• Counter 1 is available for counting/timing operations.
• Counter 2 can be reserved for Track*/Hold manipulation for the
SCXI-1140, and is otherwise available for counting/timing operations.
Figure 4-1 shows the connections of the MSM82C54 Counter/Timer
signals to the DAQCard-700 I/O connector.
Figure 4-1.
DAQCard-700 Counter/Timer Signal Connections
The counter has a clock input, a gate input, and an output labeled CLK,
GATE, and OUT, respectively. The clock pin for counters 1 and 2 and the
gate and output pins for counters 1, 2, and 3 are available on the device I/O
I/O Connector
1 MHz
Source
OUT2
CLK2
GAT2
OUT0
GAT0
CLK0
OUT1
CLK1
GAT1
MSM82C54
Counter/Timer
- DAQ Hardware Overview 1
- Important Information 3
- Chapter 14 7
- SCXI Hardware 7
- Glossary 10
- Contents 11
- About This Guide 12
- MIO and AI Device Terminology 15
- Table 1 16
- Related Documentation 17
- MIO and AI Devices 18
- Chapter 1 MIO and AI Devices 19
- E Series Data Acquisition 20
- Set_DAQ_Device_Info 22
- MIO Device Analog Output 24
- E Series Digital I/O 26
- E Series PFI Pins 27
- Lab and 1200 Devices 28
- AI_Trigger_Config.vi 31
- DAQ_StopTrigger_Config 31
- Table 2-2 32
- Lab and 1200 Devices Groups 33
- Figure 2-1 34
- 1200 Device Acquisition Rate 35
- 1200 Device Calibration 36
- LPM Devices 37
- DAQ_Config 38
- LPM Device Digital I/O 39
- LPM Device Counter/Timers 40
- 516 Devices and 41
- DAQCard-500/700 Devices 41
- DAQ_Config. If you do 43
- Counter/Timer Operation 44
- Figure 4-2 45
- AT-AO-6/10 Analog 46
- Output Devices 46
- AT-AO-6/10 Digital I/O 48
- 6703/6704 Devices 49
- PC-TIO-10 Timing I/O Device 50
- PC-TIO-10 Counter/Timers 54
- PC-TIO-10 Digital I/O 55
- DIO-96 Digital I/O Devices 56
- DIO-96 Groups 57
- DIO-24 (6503) 58
- AT-MIO-16DE-10, and 6025E 58
- DIO-32F and 6533 60
- Digital I/O Devices 60
- Digital_Buffer_Write.vi) 62
- AMUX-64T External 63
- Multiplexer Accessory 63
- Table 11-2 64
- AMUX-64T Channel Numbers 64
- SCAN_Setup or 65
- MIO_Config 67
- Accessories 68
- SC-2042-RTD Accessory 69
- SC-2043-SG Accessory 69
- SCC Series Modules 70
- SCC-CI20 Current Input Module 72
- SCC-LP Lowpass Filter Modules 73
- SCC Configuration 74
- SCXI Operating Modes 76
- Chapter 14 SCXI Hardware 77
- SCXI Data Acquisition Device 80
- SCXI-1200 80
- SCXI Analog Input Modules 81
- SCXI-1100 81
- SCXI-1101 82
- SCXI-1104/C 83
- SCXI-1112 83
- SCXI_Scale function to 84
- SCXI_Single_Chan_Setup 84
- SCXI-1125 85
- SCXI-1122 85
- SCXI-1126 86
- SCXI-1127 87
- SCXI-1140 87
- SCXI Analog Output Module 89
- SCXI-1124 89
- SCXI Digital Modules 90
- SCXI-1160 and SCXI-1161 90
- SCXI-1162 and SCXI-1162HV 91
- SCXI-1163 and SCXI-1163R 91
- SCXI-1530, SCXI-1531 92
- SCXI-1540 92
- SCXI_Track_Hold_Setup 94
- DIO-24 and the DIO-96 96
- DIO-32F and 6533 Device 97
- VXI-DAQ Devices 99
- AO_Change_Parameter or the 100
- Multifunction VXIbus Devices 101
- VXI-DAQ Signal Conditioning 102
- VXI-SC-1102 Submodule 103
- VXI-SC-1150 Submodule 103
- PXI DAQ Devices 104
- PXI DAQ Signal Conditioning 105
- NI 5411 Devices 106
- Chapter 17 NI 5411 Devices 107
- DDS Mode 108
- Table 17-2 110
- NI 5411 Operational Modes 110
- Device Analog Input 112
- Data Acquisition 113
- Acquisition Timing 114
- Current Source 115
- Digital I/O 115
- Device Input 116
- Chapter 19 NI 40XX Devices 118
- DSA Devices 119
- and NI 455 120
- Analog Input Channels 120
- Data Acquisition Timing 121
- Channels 122
- Digital I/O 123
- Counter/Timer Operation 124
- Devices 125
- Chapter 21 671X Devices 126
- Technical Support Resources 129
- Worldwide Support 130
- Numbers/Symbols 131
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