Chapter 8 Serial Communication Module AH10SCM Table of Contents 8.1 Introduction ................................................................................................8-2 8.2 Dimensions and Profile ..............................................................................8-3 8.2.1 Dimensions ........................................................................................8-3 8.2.2 Profile .................................................................................................8-4 8.2.3 RS-485/RS-422 Communication Port .................................................8-5 8.3 Installation and Wiring ...............................................................................8-5 8.3.1 Installation ..........................................................................................8-5 8.4 Control Registers .......................................................................................8-6 8.4.1 Descriptions of the Control Registers .................................................8-9 8.4.2 Introduction of the Related Instructions ............................................
8-16 8.5 Quick Start ............................................................................................... 8-21 8.6 Software .................................................................................................. 8-28 8.6.1 SCM Project ..................................................................................... 8-28 8.6.2 COM Port Setting ............................................................................. 8-28 8.6.3 UD Link (User-defined Communication) ........................................... 8-28 8.6.3.1 TX Packets and RX Packets .....................................................
8-29 8.6.3.2 Command ................................................................................. 8-31 8.6.3.3 Sequence .................................................................................. 8-32 8.6.4 Modbus Advance.............................................................................. 8-33 8.6.5 COM Port History ............................................................................. 8-33 8.7 Application ............................................................................................... 8-34 8.7.1 Modbus ............................................................................................
8-34 8.7.1.1 Modbus Slave─Connection with Delta Products ....................... 8-35 8.7.1.2 Modbus Master─Connection with Delta Products ..................... 8-37 8.7.2 Connecting to ISPSoft ...................................................................... 8-45 8.7.3 RS-485 ............................................................................................. 8-46 8.7.3.1 Connecting to a Power Meter .................................................... 8-46 8.8 Error Flags ............................................................................................... 8-64 8-1