AH500 Module Manual 11.4.2.5 Monitoring Function of Software When the software is online and the current configuration of AHRTU-DNET-5A is consistent with that saved in the software, click “Start Monitor” to enter the monitor interface through which the operation state of AHRTU-DNET-5A and I/O modules can be monitored in real time. Description of operation state of each module: 11-34 Indicates that the module is in RUN state Indicates that the module is in STOP state Indicates that the module is reporting the alarm or running with faults For detailed information on errors, see Error Codes in the user manual of the relevant module.