Identifiers are often linked to role-based access, ensuring only authorized panels can send critical commands like "Emergency Stop" or "Recipe Change".
Read out name of an IO device or a DP slave (S7-1200, S7-1500) please set hmi identifier of hmi machine id
| Platform | Where to Set HMI Identifier | Where to Set Machine ID | |----------|----------------------------|-------------------------| | | HMI device configuration → Identification → Device name | User-defined tag, e.g., @MachineID in tag table | | Rockwell FactoryTalk View SE | Network station configuration → Station name | HMI server properties → Machine ID (integer) | | CODESYS HMI (WebVisu) | Device → HMI Manager → Name | Global variable list: hmiMachineID : INT := 42; | | AVEVA Edge (formerly InduSoft) | Project → System → Computer Name | Project → Tags → System Tags → $MachineID | Identifiers are often linked to role-based access, ensuring
The HMI works, but data flickers or writes to the wrong machine. The HMI writes its Identifier and Machine ID
Then, map this structure to the HMI’s communication area. The HMI writes its Identifier and Machine ID into this structure cyclically.