Shanghai Automation Technology Co., Ltd. Li Hui (Siemens sales agent) Contact: Xu, Li Hong (sales engineer) 24-hour sales technical service hotline: 15021672309 Telephone (Tel) :021-33737848 fax (Fax) :021-33737848 E-mail (Email): 780099838 @ qq.com Business (QQ): 780099838 QQ: 780099838 procedures for applications with medium-scale demand for binary floating-point arithmetic and has a high CPU processing power required to operate the SIMATIC Micro Memory Card (MMC) Area of ??application CPU?? 314 for processing power and high response speed requirements of the occasion. Through its work, the memory, the CPU is also applicable to medium-sized applications. Design CPU 314 is installed: a microprocessor; processor for each binary instruction processing time is about 60 ns, each floating-point operation as 0.59 μs?. ? Extended memory; 128 KB RAM speed associated with the execution of the program segment (equivalent to approximately 42 K instructions) can provide sufficient space for the user program; SIMATIC Micro Memory Card (up to 8 MB) as the load memory program also allows projects (including symbols and comments) are stored in the CPU. ? Flexible expansion capabilities; Up to 32 modules (4-row structure) MPI multi-point interface;? Integrated MPI interface can simultaneously establish a connection with S7-300/400 or 12 programming device, PC, OP's. In these connections, is always reserved for the programmer and OP were a connection. By "global data communication", MPI can be used to create up to 16 CPU consists of a simple network. ? Functions password protection; user program is password protected to prevent unauthorized access. ? Diagnostics buffer; diagnostic buffer can store the last 500 errors and interrupt events, of which 100 events can be long-term retention. ? Maintenance-free data backup; If power is interrupted, CPU all the data (up to 64 KB) automatically written SIMATIC Micro Memory Card (MMC card), so that the data can be used again after the voltage is restored, and the change does not occur . The feature can be parameterized using the configuration, attributes, and the CPU in STEP 7 S7's response parameter settings: MPI multi-point interface; define the station address restart / cycle time characteristics; maximum cycle time and load restrictions, and self?? ? detection function remains scope;? number of definitions are stored bits, counters, timers and data hold function block has a clock memory; setting address protection class;?? defined procedures and data access system diagnostics; process definition diagnostic alarms ? and scope of the watchdog interrupt; period set the clock interrupt;? set the start date, start time and the interval period and information display functional status and fault indication;?-emitting diode display, for example, hardware, programming, timer or I / O error and operating modes, such as RUN, STOP, Startup. ? Test function; programmer can be used to display signal status during program execution, and can not be modified by the user program process variables, and the output stack contents. ? Messaging; You can use the programmer in the form of plain text storage capacity and access to CPU operation mode, the current utilization of main memory and load memory as well as information about the current cycle time and the diagnostic buffer contents. ???? Integrated communication functions PG / OP communication Global data communication S7 basic communication S7 communication (only server) system functions with a wide range of system CPU features, such as: diagnostics, parameter assignment, alarm, timing and measurement. For more information, see the manual.