0MRON PLC MODEM and the PC to provide connectivity through the function. The method exploits the MODEM and the PC and the PLC were connected, the PC running SSS or CPT software, enabling remote monitoring and debugging functions. The MODEM connection method is divided into dial-up connection and line connection in two ways. The following describe the various ways to achieve such functions. dial-up connection 1System Block Diagram <v: f eqn = "sum 0 0 @ 1"> petype> 2 Hardware requirements: pt; mso-bidi-font-size: 10.5pt "> 1) IBMPC / XT compatible: one. can run the CPT; The use of SSS, is required to run Microsoft Windows in the" super terminal " NT-SIZE: 12pt; mso-bidi-font-size: 10.5pt "> software, or other communications programs, such as Procomm plus. 2) MODEM: two. Connect PLC, one of which is external, in order to ensure communication quality, the baud rate used 9600bPs, it is not too high a rate of MODEM, 14400bPs can. He s recommended the company MODEM. The use of the products of other manufacturers must ensure and Hayes (Hayes) of the AT instruction set is fully compatible, especially for S Register definitions. idi-font-size: 10.5pt "> and connected to the MODEM PC, no special requirements, and NOTEB00K built-in PCMCIA card type used on the can. However, when using SSS software to connect, because they have to MODEM connection status monitoring, and preferably also use external. 3) PLC: CPT or sss software support all the PLC can be used, but if I must use the programmer adapter. 3 Exercises For these steps: 1. Wiring: 1) IBMPC / XT compatible COM port and serial communication lines between the MODEM, MODEM can be used with the included cable the time of purchase. If they produced, the connection is as follows: 12pt; mso-bidi-font-size: 10.5pt "> IBM PC / XT MODEM Compatible COM port 9 hole DTE serial communication port 25-pin DCE ize: 10.5pt ">