WinCC v16 Unified Script access to Array of PLC Data types

Hello,

We have a v16 WinCC Unified project that is set up in the following way:

• SIMATIC PC station running WinCC Unified Scada RT
• Integrated S7 1500 PLC

The PLC has tags defined that we have dragged over into the HMI tags table. Some of the tags are in an array. We are attempting to access these tags in the array from a script.

The following works when accessing primitive data types (int, bool, WString, etc.):

for(let i=0; i<5; i++){

  const boolTag = Tags(`my_bools[${i}]`);

  const boolTagVal = boolTag.Read();

  console.log(`my_bools[${i}] = ${boolTagVal}`)

}

// Prints out the following

// my_bools[0]=false

// my_bools[1]=true

// my_bools[2]=false

// my_bools[3]=false

// my_bools[4]=true

When the data type is a user defined PLC data type (this one is an array of structs) however, the following error occurs:

New question published by zeppoo1 is split to a separate thread with the subject WinCC v18 Script access to Array of PLC Data types.

Best regards
Jen_Moderator