L-Card ADC Series, Руководство пользователя

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Contents
CHAPTER 1. GENERAL DESCRIPTION................................................................... 7
1.1. Order information............................................................................................................... 8
1.1.1. Distribution kit ................................................................................................................... 9
1.2. Appearance and main structural elements ................................................................... 10
CHAPTER 2. INSTALLATION AND CONFIGURATION. ....................................... 11
2.1. E-502 configuration "by default". .................................................................................. 11
2.2. Internal construction elements and E-502 configuration. .......................................... 12
2.2.1. Configuration of the DAC outputs of the connector Analog (DAC1/+15V/AGND/NC
and DAC2/-15V/DGND/NC) ....................................................................................................... 13
2.2.2. Configuration of the resolution of the active state of the digital outputs DO1 ... DO16
on the Digital connector. ............................................................................................................... 13
2.3. Functions of the status LEDs on the front panel. ......................................................... 13
2.3.1. LED1. ................................................................................................................................ 13
2.3.2. LED2. ................................................................................................................................ 14
2.3.3. LEDS Link and Activity (on LAN connector) in modifications E-502-P-EU. ............ 14
2.4. RESET functions ............................................................................................................... 14
2.5. Serial number. E-502 version number. Module identification in a multi-module
configuration. ............................................................................................................................... 15
2.6. E-502 application as a part of user programs............................................................... 15
2.7. Software installation ......................................................................................................... 15
2.8. Ethernet interface configuration .................................................................................... 15
CHAPTER 3. THE MECHANISM AND PRINCIPLE OF OPERATION OF E-502.. 16
3.1. Conventions ........................................................................................................................ 16
3.1.1. Convention on numbering ............................................................................................... 16
3.1.2. The assumption on the concept of "frequency" ............................................................. 16
3.2. Introduction (general information) ................................................................................ 16
3.3. Operation principle ........................................................................................................... 17
3.3.1. Reference frequency ........................................................................................................ 18
3.3.2. ADC channel. ................................................................................................................... 18
3.3.3. Digital input channel. ....................................................................................................... 19
3.3.4. Digital output and DAC channels ................................................................................... 19
3.3.5. E-502 synchronization general principle. ....................................................................... 20
3.3.6. Adjustment of the ratio between the time of setting the signal and the resolution for
each ADC channel......................................................................................................................... 22
3.3.7. Relative switching delays in ADC channels. ................................................................. 23
3.3.8. Relative delays of the ADC, DAC and I/O channels. .................................................... 25
3.4. Operation principle and function circuit....................................................................... 27