Ch ap te r 8 Ser ia l C ommu nic a tion Mod ule AH1 0/15 SC M8 - 2 9CR#7.After M0 is triggered, a present value can be read into D100 in a CPU module through COM1 onAHSCM-5A. The value of bit0 in D0 is 1.8.6 SoftwareThis section introduces SCMSoft, which is used to set AH10/15SCM-5A.8.6.1 SCM ProjectUsers can make an SCM project for COM1 and COM2 on AH10/15SCM-5A. An SCM project iscomposed of four parts.COM Port setting: Users can set communication protocols for exchanging data through COM1 andCOM2. (See section 8.6.2.)UD Link: RS-485/RS-422/RS-232 communication can be used. Users can define the contents of apacket by themselves. (See section 8.6.3.)Modbus Advance: A standard Modbus RS-485/RS-422/RS-232 device can use this function. OtherDelta automation products and other standard Modbus communication devicescan also use this function. (See section 8.6.4.)COM port history: The communication history of AH10/15SCM-5A can be recorded. (See section8.6.5.)8.6.2 COM Port SettingSetting a communication protocol: Modbus, UD Link (user-defined RS-485/RS-422/RS-232 format),and BACnet MS/TP slave
