One of the most powerful features of PCS 7 is automatic naming. When you insert a technological block (such as a Motor, Valve, or PID controller) into a CFC (Continuous Function Chart) chart, PCS 7 automatically generates a "Block Name" (Tag Name).
The actual physical equipment on the factory floor.
Right-click on the plant name → Insert New Object → Process Cell or Unit. Give it a Unit Code as the name (e.g., R101 ).
This comprehensive guide explores the mechanics of PCS 7 unit codes, how they integrate with the plant hierarchy, the specific naming conventions used in the Process Object View, and best practices for implementing a robust coding structure.
Operator requests a rename from R101 to R201 due to plant renumbering. Solution: This is not trivial . Unit Codes are embedded in message databases, archives, and batch logs. You must:
For a complete list of codes, you can refer to the official SIMATIC PCS 7 APL Manual on the Siemens Support site .
, allowing for easy selection from dropdown menus in the CFC editor. Common Unit Codes
PCS 7 allows engineers to define the . By default, the system might simply append a running number. However, in large projects, standard practice dictates using KKS (Kraftwerk-Kennzeichen-System) or a custom site-specific coding standard.