Fluke NetDAQ 2645A User Manual Page 46
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2640A/2645A NetDAQ
Users Manual
2-14
+
9-16V
DC PWR
MA TO TI
ALARM/TRIGGER I/O
TR3210–+
+
–
MA
TO
TI
DC Positive Input
DC Negative Input
Master Alarm Output
Trigger Out Output
Trigger In Input
Signal Ground
Instrument
Connector
+
–
2
3
TR
InstrumentFunction Connector
Figure 2-6. ALARM/TRIGGER I/O Connector
Trigger Output 2-17.
Trigger Output uses terminals TO and GND, and is a TTL signal that goes to a
logic low for 125 µs every time a scan begins. Use the Trigger Output to trigger
other instruments via their Trigger Input connection and to interface with external
equipment. To enable or disable the Trigger Output, see "Trigger Out" in Chapter
3 of this manual. The trigger output default is OFF. See Table A-5 in Appendix A
for complete specifications.
Master Alarm 2-18.
Master Alarm uses terminals MA and GND. It is a TTL signal that goes to a logic
low when any channel is in alarm while the instrument is scanning. This TTL
signal output can interface with external equipment such as warning lights,alarms,
paging systems, etc. See Table A-6 in Appendix A for complete specifications.
- 2640A/2645A 1
- PCaution 4
- SAFETY TERMS IN THIS MANUAL 5
- Table of Contents 7
- 2640A/2645A NetDAQ 10
- Contents 11
- List of Tables 13
- List of Figures 15
- Overview 17
- Introduction 1-1 19
- Analog Channels 1-3 23
- Computed Channels 1-4 23
- Channel Numbering 1-5 23
- Mx+B Scaling 1-6 23
- Alarms 1-7 24
- Channel Monitoring 1-8 24
- Digital I/O 1-9 24
- Totalizer 1-10 24
- Trigger Input 1-11 25
- Trigger Output 1-12 25
- Alarm Trigger 1-16 26
- Master Alarm 1-13 26
- Interval Trigger 1-14 26
- External Trigger 1-15 26
- Isolated Networks 1-19 28
- General Networks 1-20 28
- Ethernet Port Selection 1-21 28
- Scanning and Logging 1-24 29
- RS-232 Interface 1-25 29
- Options and Accessories 1-27 30
- Options and Accessories 31
- Preparing for Operation 33
- Introduction 2-1 35
- Instrument Preparation 2-2 35
- Instrument Preparation 37
- PWarning 38
- Trigger Input 2-16 45
- Trigger Output 2-17 46
- Master Alarm 2-18 46
- Controls and Indicators 2-20 47
- Front Panel Controls 2-21 49
- Front Panel Indicators 2-22 50
- Rear Panel Controls 2-23 52
- Rear Panel Indicators 2-24 52
- Power-On Options 2-26 53
- Testing and Troubleshooting 87
- Configuring NetDAQ Logger for 95
- Introduction 3-1 97
- Configuring the Current Setup 101
- Setup Files 3-14 105
- Opening a Setup File 3-16 106
- Setup Files 107
- Configuring an Instrument 109
- Configuring Channels 3-23 112
- Configuring Channels 113
- Equation Syntax 3-28 115
- Configuring Alarms 3-30 117
- Operating NetDAQ Logger for 125
- Introduction 4-1 127
- Simulated Logging 4-6 129
- Real-Time Displays 4-8 130
- Real-Time Displays 131
- The Spy Window 4-11 133
- Quick Plot 4-12 135
- Data Files 4-14 137
- Configuring a Data File 4-15 138
- Data Files 139
- Converting Data Files 4-16 142
- Optimizing Performance 143
- Optimizing Performance 4-18 144
- Using Online Help 4-24 145
- Using Trend Link for Fluke 147
- Introduction 5-1 149
- Introduction 151
- Curve Preferences 5-21 164
- Background Preferences 5-22 167
- Using the Note System 5-25 170
- Printing a Chart 5-26 170
- Click OK to print the chart 172
- Maintenance 173
- Introduction 6-1 175
- Cleaning 6-3 176
- Fuse Replacement 6-4 176
- Fuse (15/100A, 250V 177
- Time Delay) 177
- Performance Test 6-5 178
- Performance Test 179
- Volts AC Accuracy Test 6-11 185
- Frequency Accuracy Test 6-12 186
- 5. Close Spy Window 191
- Step 2) 194
- Digital I/O Output Test 6-25 198
- Digital Input Test 6-26 199
- Totalizer Tests 6-27 200
- Totalizer Count Test 6-28 200
- Trigger Input Test 6-31 202
- Trigger Output Test 6-32 202
- Calibration 6-33 203
- Calibration 205
- Service 6-38 206
- Replacement Parts 6-39 208
- Appendices 209
- Introduction A-1 211
- Digital I/O A-6 214
- Trigger In A-7 215
- Trigger Out A-8 216
- Master Alarm A-9 216
- 2640A Specifications A-12 217
- Specifications 219
- 2645A Specifications A-21 227
- Introduction B-1 237
- Noise and Shielding B-3 237
- Crosstalk Considerations B-4 238
- Crosstalk Considerations 239
- Introduction C-1 241
- True-RMS Measurements 243
- Introduction D-1 245
- Fixed-385 RTD D-2 245
- Custom-385 RTD D-3 246
- RTD Linearization 247
- Introduction E-1 251
- Introduction F-1 253
- File Format F-2 253
- Introduction G-1 255
- DDE Links Reference G-2 255
- DDE Example Using Excel G-3 256
- Dynamic Data Exchange (DDE) 257
- Introduction H-1 261
- UTP Cables H-2 261
- Introduction I-1 263
- Network Primer I-4 265
- Network Considerations 267
- Drivers I-10 271
- TCP/IP Protocol Stack I-11 273
- Glossary I-24 293
- Introduction J-1 299
- Full-Disk J-3 299
- Scan Queue Overflows J-4 299
- Error Conditions J-5 299
- Error and Status Messages 301
- Instrument not found! 315
- Not responding to command! 321
- Performing Rollover 322
- Unable to Open Mx+B File! 329
- Unable to open RS232 port! 329
- Unable to Open Setup File! 330
- Unable to stop scanning! 330
- Unknown Communication Error! 331
- Window creation failed! 332
- Winsock.dll not found! 332
- Fluke Service Centers 333
- (continued) 341
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