| OID | 1.3.6.1.4.1.318.1.1.28.1.4 |
| Module | PowerNet-MIB (APC) |
| Nom | pmmIdentHMISerialNumber |
| Acces | readonly |
| Status | mandatory |
| Description | A character string identifying the serial number of the HMI. This value is set at the factory. |
| Syntaxe | DisplayString (RFC1213-MIB) |