Ch ap te r 9 Ether ne t Co mmun ica tio n Mo du le AH1 0 /1 5 EN9 - 53. Tighten the screw on the module.9.2.2 Connecting to the NetworkAfter an AH500 series CPU module is set through HWCONFIG in ISPSoft, AH10/15EN-5A can carryout communication. The basic setting of the CPU module is accomplished through theRS-232/USB/Ethernet port. After IP addresses and subnet masks are assigned to AH10/15EN-5A,and a network cable is connected to AH10/15EN-5A, AH10/15EN-5A can carry out thecommunication. Users can choose a Cat 5e twisted pair cable as the network cable, and does notneed a jumper wire.AH10/15EN-5A is equipped with two RJ45 ports. The ports function as a switching hub thatconnects network segments. If users want to use these ports, they must assign a single IP address.If AH10/15EN-5A is connected to two different networks, the users must disable the switching hubfunction through HWCONFIG, and assign two IP addresses and two subnet masks toAH10/15EN-5A so that AH10/15EN-5A connects to a wide area network (WAN) and a local areanetwork (LAN).9.3 RegistersThere are input registers, output registers, and control registers in AH10/15EN-5A. The status ofAH10/15EN-5A is stored in an input register, functions are triggered by the values in output registers,and parameters related to communication are stored in control registers. Users can set inputdevices and output devices in a CPU module which correspond to the input registers and the outputregisters in AH10/15EN-5A through HWCONFIG in ISPSoft. Besides, the users can read data froma control register by the instruction FROM, and write data into a control register by the instructionTO. The functions of the registers are described below.9.3.1 Functions of the Input RegistersNumber Attribute Register name DescriptionHW LW- #0 R Status of the product Displaying the status of the system0: The system is normal.- #1 R Version of the systemThe version of the system is represented by ahexadecimal value. For example, if the versionof the software is 1.02, it is represented by16#1020.- #2 R Status of port 1 Displaying the status of port 1- #3 R Status of port 2 Displaying the status of port 2- #4 R Reserved- #5 R Reserved
