Moggie

MrPLC Member
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About Moggie

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  • Location Devon
  • Country United Kingdom
  1. Janitza UMG96RM RS485 Bus

    Here is the link to the manual https://www.janitza.com/manuals.html?file=files/download/manuals/current/UMG96RM/Basic/Benutzerhandbuch-UMG96RM90-277V_Englisch.pdf Page 30 deals with grounding the shield. Page 29 deals with the terminating resistors. Page 14 deals with the supply voltage.
  2. S7 Classic SCL

    I needed a shift register for S7 Classic and after a lot of searching I wrote my own in SCL. First time writing SCL Code - so would someone like to test ("to destruction" )the attached SCL Code for me? Hopefully the comments make sense and it does seem to do what I want. The zip file contains a S7 libary of the block (FB207) as well as the SCL Code and a text document Thanks in advance   Description.zip
  3. DB vs PLC Tags

    this may help - (for use in a "class" on the differences but may be worth a read?) https://www.industry.usa.siemens.com/automation/us/en/formsdocs/Documents/2016%20MIA-%2056%20Rockwell%20to%20Siemens%20TIA%20Portal.pdf
  4. S7-1200 timer

    Do not use "Local Data" use "Global Memory instead" - ie use %M1.0
  5. CP 343-1

    What HMI ? What version of S7
  6. Can someone please help me finding this tag?

    The "tag" you have indicated is only used within the FC (internal Parameter). have a look at where your FC is used (FC207) and you will see the actual parameter that is passed to the "internal parameter"
  7. Vipa CPU 315SB-2AG12

    Has anyone experience connecting to a Vipa  315SB 2AG12 CPU with Simatic Manager? I have tried the Siemens USB PC adaptor and cannot connect - any help would be appreciated. Thanks in advance.  
  8. TIA TP1500

    Normally ## will appear if there is no communication OR the configured field is not long enough to display the variable. (ie the field is configured for 3 "places" but the value is 4 "places" long)
  9. Hundreds of Discrete Alarms - Simplest method?

    I had the same problem recently swapping from Omron to S7 - still fresh in my mind.
  10. Hundreds of Discrete Alarms - Simplest method?

    Over writting of address !!! I think you mean -  Alarm Word 1 = MW100 Alarm Word 2 = MW 102 Alarm Word 3 = MW104 Or use a Data Block.
  11. Programming Port

    Thank you kraykov  - these adaptors look ideal. I was thinking about "portable adaptors" that I could just put in the tool case and use if required (temporarily)
  12. Programming Port

    Recently went to a site where the HMI was connected to the programming port of the FX PLC. Had to keep disconnecting the HMI to connect the SC 09 cable from the laptop. Are there any port duplicators (or similar) to be able to connect both the HMI and laptop at the same time. (HMI was not Mitsi and had no "pass through")
  13. Time(Min and Hour) Comparision In Simatic Manger CPU317

    Maybe this will help https://support.industry.siemens.com/tf/ww/en/posts/comparing-data-in-format-tod/22482/?page=0&pageSize=10
  14. SR FLIP FLOPS

    Make sure MB0 is not used by the "clock" memory. In the PLCSIM window show the status of MB0
  15. SR FLIP FLOPS

    One reason can be the use of the same address more than once or using a byte or word. But without more details it is impossible to help, a screen shot would be useful