Manual epc10x

Table of Contents

1. Introduction.................................................................................................................................................... 3

2. Light Curtain Principle.................................................................................................................................. 4

2.1 System Overview........................................................................................................................................................................................... 4

2.2 Light Curtain Receiver Edge..........................................................................................................................................................................6

2.3 Light Curtain Emitter Edge.............................................................................................................................................................................6

3. 2-Wire Bus...................................................................................................................................................... 7

3.1 General Description....................................................................................................................................................................................... 7

3.2 Bus Wire Considerations............................................................................................................................................................................... 9

3.3 Bus Signal Waveform.................................................................................................................................................................................. 10

4. Parameter Memory...................................................................................................................................... 12

4.1 Receiver Parameters (epc100)....................................................................................................................................................................13

4.2 Sample Receiver Parameter Setting........................................................................................................................................................... 15

4.3 Transmitter Parameters (epc101)................................................................................................................................................................16

4.4 Sample Transmitter Parameter Setting....................................................................................................................................................... 18

5. Timing........................................................................................................................................................... 19

5.1 Overview...................................................................................................................................................................................................... 19

5.2 Timing Details.............................................................................................................................................................................................. 20

5.3 Special Cases.............................................................................................................................................................................................. 21

6. SPI Interface................................................................................................................................................. 22

6.1 Timing Specifications................................................................................................................................................................................... 22

6.2 General Description..................................................................................................................................................................................... 22

6.3 Command List..............................................................................................................................................................................................23

6.4 Detailed Command Descriptions................................................................................................................................................................. 24

7. Address Programming................................................................................................................................ 27

7.1 General Description..................................................................................................................................................................................... 27

7.2 Programming Procedure..............................................................................................................................................................................28

8. Considerations for Safety Applications..................................................................................................... 29

8.1 Data Integrity on the 2-Wire Power-Bus...................................................................................................................................................... 29

8.2 Residual Error Rate..................................................................................................................................................................................... 29

8.3 Error Cases..................................................................................................................................................................................................29

8.4 Error Codes..................................................................................................................................................................................................29

© 2013 ESPROS Photonics Corporation

Characteristics subject to change without notice

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Manual epc100 - V2.3-DRAFT 130812

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