Chapter 1 Introduction of Products (7) Task The programs can be assigned to 283 tasks at most. Among the 288 tasks, 32 tasks are cyclic tasks, 32 tasks are I/O interrupts, 4 tasks are timer interrupts, 2 tasks are communication interrupts, 1 task is an external 24 V low-voltage interrupt, and 212 tasks are user-defined tasks. Users can enable and disable a task during the execution of a program by means of TKON and TKOFF. (8) Increasing the efficiency of configuring the hardware through an USB cable and ISPSoft The AH500 series CPU module provides a standard USB 2.0 interface.
USB 2.0 increases the data transfer rate, and decreases the time it takes to download the program, monitor the program and configure the hardware. Besides, users do not need to buy a communication cable for the CPU module. They can use a general USB cable to connect to the AH500 series CPU module. (9) Serial control interface with multiple functions CPU530-RS2 CPU530-EN RUN ERROR BUS FAULT SYSTEM COM1 COM2 RUN ERROR BUS FAULT COM SYSTEM C O M Ethernet 2 USB COM USB C O M 1 AHCPU500/510/520/530-RS2 provides two DB9 serial control interfaces, i.e. COM1 and COM2. AHCPU500/510/520/530-EN provides one DB9 serial control interface, i.e. COM.
Users can set the DB9 serial control interface to RS232, RS485, or RS422 according to the application environment. The data transfer rate can be increased from 9600 bps to 1 Mbps. 1-11