AH500 Module Manual 8.7.3 RS-485 This section introduces how AH10SCM-5A is connected to other industrial products through a non-Modbus RS-485 communication port on AH10SCM-5A. 8.7.3.1 Connecting to a Power Meter A power meter can be connected through Modbus, or through a RS-485 port. This section introduces how AH10SCM-5A is connected to a power meter through a UD Link RS-485 port on AH10SCM-5A. (1) Starting SCMSoft Open HWCONFIG. COM1 Setting Set communication parameters. 8-46