Need to read parameters of technology objects

Please Can somebody help me ? 

i have a drive wich controls my motor and i  need to read some parameters of my technology objects as examples : the couple , the current . 

Could somedy tell me how can i manage to succeed it ? Thank's . 

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Split from How to access technology object parameters like position, actual position?.

• What is the drive?
• what technology object are you using?
• what is the telegram?
• which parameters exactly do you want?
• can you share some screen shots or the project itself?