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\deftab284\paperw15309\paperh16840\margl1134\margt1134\margr3430\margb1338\pard\fi-284\li284\sb60\tx284\tx708\tx1416\tx2124\tx2832\tx3540\tx4248\tx4956\tx5664\tx6372\tx7080\tx7788\tx8496\tx9204\plain\f0\fs18 \'b7\plain\f1\fs18\tab Password protection;\line a password concept also protects the user program from unauthorized access\par\plain\f0\fs18 \'b7\plain\f1\fs18\tab Diagnostics buffer;\line the last 100 errors and interrupt events are saved in a buffer for diagnostics purposes\par\plain\f0\fs18 \'b7\plain\f1\fs18\tab Maintenance-free data backup;\line the CPU automatically writes retentive data to the micro memory card in case of power failure, so that it remains available unchanged when the power is turned on again.\par\pard\sb60\sa20\tx708\tx1416\tx2124\tx2832\tx3540\tx4248\tx4956\tx5664\tx6372\tx7080\tx7788\tx8496\tx9204\tx9912\plain\f1\fs18\b\i\cf3 Configurable attributes\par\pard\sb100\tx708\tx1416\tx2124\tx2832\tx3540\tx4248\tx4956\tx5664\tx6372\tx7080\tx7788\tx8496\tx9204\tx9912\plain\f1\fs18 STEP 7 can be used to parameterize both S7 configurations and the properties and responses of the CPUs:\par\pard\fi-284\li284\sb60\tx284\tx708\tx1416\tx2124\tx2832\tx3540\tx4248\tx4956\tx5664\tx6372\tx7080\tx7788\tx8496\tx9204\plain\f0\fs18 \'b7\plain\f1\fs18\tab Interface with multipoint capability (MPI);\line Definition of node addresses\par\plain\f0\fs18 \'b7\plain\f1\fs18\tab Restart/cycle performance characteristics;\line Determination of the maximum cycle time and load, as well as of the self-testing functions.\par\plain\f0\fs18 \'b7\plain\f1\fs18\tab Retentive areas;\line Definition of the number of retentive bit memories, counters, timers and data blocks\par\plain\f0\fs18 \'b7\plain\f1\fs18\tab Clock bit memory;\line Address settings.\par\plain\f0\fs18 \'b7\plain\f1\fs18\tab Protection level;\line Definition of access authorizations to program and data\par\plain\f0\fs18 \'b7\plain\f1\fs18\tab System diagnostics;\line Definition of the handling and scope of diagnostic messages\par\plain\f0\fs18 \'b7\plain\f1\fs18\tab Integrated function \'93Counter"\par\plain\f0\fs18 \'b7\plain\f1\fs18\tab Integrated "Frequency measurement" function\par\plain\f0\fs18 \'b7\plain\f1\fs18\tab Integrated function \'93Adjust"\par\plain\f0\fs18 \'b7\plain\f1\fs18\tab Time interrupts;\line Periodicity settings.\par\plain\f0\fs18 \'b7\plain\f1\fs18\tab Time-of-day interrupts;\line Start date, start time and periodicity settings.\par\pard\sb60\sa20\tx708\tx1416\tx2124\tx2832\tx3540\tx4248\tx4956\tx5664\tx6372\tx7080\tx7788\tx8496\tx9204\tx9912\plain\f1\fs18\b\i\cf3 Reporting functions \par\pard\fi-284\li284\sb60\tx284\tx708\tx1416\tx2124\tx2832\tx3540\tx4248\tx4956\tx5664\tx6372\tx7080\tx7788\tx8496\tx9204\plain\f0\fs18 \'b7\plain\f1\fs18\tab Status and fault indicators;\line LEDs show, e.g., hardware, programming, timer or I/O errors and operating modes such as RUN, STOP, startup.\par\plain\f0\fs18 \'b7\plain\f1\fs18\tab Testing functions;\line you can use the PG to display signal states in program execution, modify process tags irrespective of the user program, and read out the contents of stack memories.\par\plain\f0\fs18 \'b7\plain\f1\fs18\tab Information functions;\line the programming device can be used to provide the user with information on the memory capacity and operating mode of the CPU, the current utilization of the working and load memories, as well as current cycle times and diagnostics buffer contents in plain text\par\pard\sb60\sa20\tx708\tx1416\tx2124\tx2832\tx3540\tx4248\tx4956\tx5664\tx6372\tx7080\tx7788\tx8496\tx9204\tx9912\plain\f1\fs18\b\i\cf3 Integrated communication functions\par\pard\fi-284\li284\sb60\tx284\tx708\tx1416\tx2124\tx2832\tx3540\tx4248\tx4956\tx5664\tx6372\tx7080\tx7788\tx8496\tx9204\plain\f0\fs18 \'b7\plain\f1\fs18\tab PG/OP communication\par\plain\f0\fs18 \'b7\plain\f1\fs18\tab S7 standard communication\par\plain\f0\fs18 \'b7\plain\f1\fs18\tab S7 communication (server only)\par\pard\sb60\sa20\tx708\tx1416\tx2124\tx2832\tx3540\tx4248\tx4956\tx5664\tx6372\tx7080\tx7788\tx8496\tx9204\tx9912\plain\f1\fs18\b\i\cf3 Integrated functions\par\pard\fi-284\li284\sb60\tx284\tx708\tx1416\tx2124\tx2832\tx3540\tx4248\tx4956\tx5664\tx6372\tx7080\tx7788\tx8496\tx9204\plain\f0\fs18 \'b7\plain\f1\fs18\tab Counters;\line 3 counters (up to 30\~kHz) with comparators independent of the direction and with direct connection to 24 V incremental encoders.\par\plain\f0\fs18 \'b7\plain\f1\fs18\tab 3 channels for frequency measurement;\line the frequency measurement (up to 30\~kHz) supports, for example, the acquisition of the rotational speed of a shaft with speed range monitoring or throughput (pieces per measurement period) with range monitoring.\par\plain\f0\fs18 \'b7\plain\f1\fs18\tab Pulse width modulation;\line 3 outputs for direct control of valves, actuators, switching devices, heating installations, etc., sampling frequency 2.5\~kHz. The period length can be configured and the pulse-pause relation can be modified.\par\plain\f0\fs18 \'b7\plain\f1\fs18\tab Interrupt inputs (all digital inputs);\line interrupt inputs enable the detection of process events and the triggering of reactions within the shortest possible time.\par\pard\tx708\tx1416\tx2124\tx2832\tx3540\tx4248\tx4956\tx5664\tx6372\tx7080\tx7788\tx8496\tx9204\tx9912\par }