Industry Online Support
Technical Forum
3/10/2011 7:42 AM | |
Posts: 100 Rating: (2) |
Hi to all I am new one for PCS7. i want to know about multiple instance in PCS7. STEP 7: For example i create one multiple instance for Motor in Step 7 INPUT : start , stop , trip OUTPUT : motor Iwrite program for motor in FB1 I create DB1 (Instance DB - FB1) I create FB2 and I create 5 motor in STAT. I create DB2 (Instance DB - FB2) The 5 motor status appear in DB2. so noneed to create Indivudual DB forindivudual motors. Even if i create 100 motors i only mention in FB2 STAT and all the 100 motors status willbe appear in DB2. Here Multiple instance used to reduce the no of data blocks for many(same type) of applications. PCS7: If i do the same program in PCS7. andwhen i create CFC for motors means even if i create multiple instance the CFC block automatically createone own DB. I dont want to create indivudual DB for Indivual Motors. Evenif i create 100 motors i want to create only one DB to store the all data (Like DB2 in above case). Is it possible. Regards, L.V.Sundar. Attachmentmultiple_instance.zip (82 Downloads) |
Follow us on