Advantech AE Technical Share Document

Transcription

1 Advantech AE Technical Share Document Date 2016 / 2 / 17 SR# Category FAQ SOP Related OS Microsoft Windows7 Abstract Describe how to use both local tag and script to achieve indirect tag function. Keyword WebAccess, Indirect Tag Related Product N/A Problem Description: Indirect tag is a common function in SCADA software. Instead of inserting physical tags to objects in Draw/DrawDAQ, user may assign local tags to the objects. Last step will be using script to assign physical tags to local tags dynamically. Scenario: WebAccess user has three exactly the same pumps; all of them have one digital tag (STATUS) and four analog tags (FREQ_FB, FREQ_CMD, HOA_POS and ETM_HRS). Because their physical tags are the same, user will create a block so it can be reused. Also, for future to easily maintain graph page, all three pumps will share the same pump.bgr page. The following main.bgr page has three push buttons. By clicking any of them, WebAccess View/ViewDAQ will go to pump.bgr page and display pump info based on pump number. Click pump 1: Page 1

2 Click pump 2: Click pump 3: User will use ModSim to simulate these three pumps Here are tag names and Modbus addresses: Tag Name Pump 1 Pump 2 Pump 3 STATUS (DO) FREQ_FB (AO) FREQ_CMD (AO) HOA_POS (AO) ETM_HRS (AO) Page 2

3 Procedure: - Create parameters and a block - Create local tag, TCLScript in pump.drw page - Create push buttons in main.drw page. Brief Solution: 1. In Modicon driver, let s create 5 parameters first, and then add a block. Modicon -> Add Parameter 2. Create a digital tag named STATUS with address When State equals to 0, display STOPPED - When State equals to 1, display START Then click submit to complete it. 3. Click Add Parameter to add analog tag - Parameter name: FREQ_FB - Address: Click Submit when complete Page 3

4 4. Repeat the same step to create FREQ_CMD, HOA_POS and ETM_HRS - Parameter name: FREQ_CMD - Address: Parameter name: HOA_POS - Address: Parameter name: ETM_HRS - Address: Result of 5 parameters Page 4

5 6. Add a Block named PUMP 7. PUMP block configuration - Name: PUMP - Select ETM_HRS, FREQ_CMD, FREQ_FB, HOA_POS and STATUS Then click Submit 8. A message box will pop up and states creating a Block successful 9. Click Parameter and Block Type List to confirm PUMP block exists. Page 5

6 10. Go to Device configuration and click Add Block Note: User should know how to create a Project Node, SCADA Node, ComPort and Device. 11. Create a Block P1 for pump #1 Note: offset must be Create a Block P1 for pump #2 Note: offset must be Create a Block P1 for pump #3 Note: offset must be 20 Page 6

7 14. Successfully create three block P1, P2 and P3 15. Create 8 local tags for Indirect tags Set Graph Parameter -> Local Tag File -> enter PUMP -> Edit 16. Create a text tag PUMP_NUM for display pump number in Pump.bgr - Tag Name: PUMP_NUM - Tag Type: Text - Length: 21 (because max length of tag is 21 characters) Click Add/Modify button to complete it. 17. Create a text tag named P_STATUS - Tag Name: P_STATUS - Tag Type: Text - Length: 21 Page 7

8 Click Add/Modify button to complete it 18. Create a text tag named P_FREQ_FB - Tag Name: P_FREQ_FB - Tag Type: Text - Length: 21 Click Add/Modify button to complete it 19. Create a text tag named P_FREQ_CMD - Tag Name: P_FREQ_CMD - Tag Type: Text - Length: 21 Click Add/Modify button to complete it Page 8

9 20. Create an analog tag named P_HOA_POS - Tag Name: P_HOA_POS - Tag Type: Text - Length: 21 Click Add/Modify button to complete it 21. Create an analog tag named P_ETM_HRS - Tag Name: P_ETM_HRS - Tag Type: Text - Length: 21 Click Add/Modify button to complete it 22. Click Save to complete adding local tags, then click Exit Page 9

10 23. Click OK to complete adding local tags 24. Create a bgr page that looks like the following, and assign Local Tags to corresponding text objects. - xxx object of PUMP => assign local tag PUMP_NUM.VIEWVA PUMP_NUM can be found in I/O Tag.VIEWVA can be found in Field NOTE:.VIEWVA allows tag values pass from one page to another. Add sign in front of 5 tags: P_STATUS, P_FREQ_FB, P_FREQ_CMD, P_HOA_POS and P_ETM_HRS - xxxxxxx object of STATUS => assign local - xxxxxxx object of FREQ. FB => assign local - xxxxxxx object of FREQ. CMD => assign local - xxxxxxx object of HOA POS => assign local - xxxxxxx object of ETM HRS => assign local Page 10

11 25. Add TCLScript in Local Script File -> On Entry -> named PUMP Click Edit button to continue 26. On Entry TCLScript: PUMP.scr } if {[GETVAL PUMP_NUM.VIEWVA]==1} then { SETVAL P_STATUS=P1:STATUS SETVAL P_FREQ_FB=P1:FREQ_FB SETVAL P_FREQ_CMD=P1:FREQ_CMD SETVAL P_HOA_POS=P1:HOA_POS SETVAL P_ETM_HRS=P1:ETM_HRS } elseif {[GETVAL PUMP_NUM.VIEWVA]==2} then { SETVAL P_STATUS=P2:STATUS SETVAL P_FREQ_FB=P2:FREQ_FB SETVAL P_FREQ_CMD=P2:FREQ_CMD SETVAL P_HOA_POS=P2:HOA_POS SETVAL P_ETM_HRS=P2:ETM_HRS } elseif {[GETVAL PUMP_NUM.VIEWVA]==3} then { SETVAL P_STATUS=P3:STATUS SETVAL P_FREQ_FB=P3:FREQ_FB SETVAL P_FREQ_CMD=P3:FREQ_CMD SETVAL P_HOA_POS=P3:HOA_POS SETVAL P_ETM_HRS=P3:ETM_HRS Page 11

12 27. Save this page to pump.bgr and pump.drw 28. Create a new page, then assign local tag file PUMP.ltg to Local Tag File 29. Create a Push Button that will go to pump #1 - Button Down Macro: <SETVAL>PUMP_NUM.VIEWVA=1 - Button Up Macro: <GOTO>GRAPH=pump.bgr Put checkmark in Group Objects Page 12

13 30. Create a Push Button that will go to pump #2 - Button Down Macro: <SETVAL>PUMP_NUM.VIEWVA =2 - Button Up Macro: <GOTO>GRAPH=pump.bgr Put checkmark in Group Objects 31. Create a Push Button that will go to pump #3 - Button Down Macro: <SETVAL>PUMP_NUM.VIEWVA =3 - Button Up Macro: <GOTO>GRAPH=pump.bgr Put checkmark in Group Objects 32. Save this page to main.bgr and main.drw Page 13

14 33. Go to SCADA Node and Download project 34. Result in ViewDAQ When user click go to pump #2 in main.bgr, ViewDAQ switches to pump.bgr with PUMP #2 tag information. Page 14