Retain Counter and Increment Encoder value at power on

Comments

• DivisionByZero

  January 21

  Hi muas1994,

  did you connect a variable to the process datum and did you select the retain property for the variable?

  

  
  

  BR

  DivisionByZero
• muas1994

  January 21

  Screenshot 2025-01-21 181941.png

  Yes , i select checkmark for Retain for both Counter and Increment Encoder but data still not retain at power on and clear both counter and Incremental encoder register
• DivisionByZero

  January 21

  I guess the values are overwritten by the module process data. Can you set the counter value via module parameter? If so you could initialize the module in an event task (e.g. Warm start).

  It might be a workaround to save the values in a separate retain variable and use this as an offset to calculate the actual values.
• muas1994

  January 21

  How to initialize module in event task ??
• DivisionByZero

  January 22

  The task can be created in the task and events editor

  

  
  

  I can't tell you if it's possible to initialize the module.
• ramesh_pxc

  January 27

  Hi Muas,

  Please update with regards to above issue.

  Thanks,

  Ramesh Kumar

  (rkumar@phoenixcontact.com)
• muas1994

  January 29 edited January 29

  i search and read soo much but i can't find a way to initialize Counter and Encoder module like we have in Siemens where we have counter control block to assign counter register same last value before power off in OB100 startup Organization Block

  But we have event enable task in PLCNEXT like Cold , Warm or Hot start, where in my case 1024 ppr encoder is counting 0.51m of fabric per revolution so i calculated total fabric length as

  LengthTotal:=(CounterValue* 0.51/1024) + LengthLast;

  and Add Event Enable task for Warm and Cold Start in ESM2 where i done

  LengthLast:=LengthTotal;

  
  

  Hence even though counter reset but my length value remain retentive