1The PLC chip set of EASY CORE
EASY CORE is a to load EASY is embedded the core chip set of PLC software platform, use at designing PLC, block diagram of its interior structure is shown 1 times like the graph.

1. Kernel of 1 EASY CORE
The kernel uses C8051F040 Composite high-powered sheet piece machine, piece inside port of O of 64 I ／ brings a foot, CAN2. 0B compositive controller, 12 ADC, PGA is mixed imitate answer uses switch, of 2 12 DAC, 64 KB but serial interface of 2 I2C of ／ of the RAM of byte of memory of process designing Flash, 4 352(4 096 256) , SPI, SMBus, UART, 5 16 general timer, but ／ of process designing computation times array has 6 to catch ／ to compare module, piece inside sensor of monitor of watchdog timer, VDD, temperature waits, industrial temperature limits - 45 ℃ ～ are used inside 85 ℃ 2. 7 ～ 3. The working voltage of 6 V.
Can control register through installing switch across, will piece the tally ／ timer inside, serial bus line, hardware is interrupted, the other figure signal of output of the ADC changeover input that start, comparator and small controller interior is configured output to the base is cited in I ／ O. Allow the application with user him specific basis to choose O of ／ of general port I and the combination that need digital resource.
The kernel uses real time operating system, to load the monitoring program of as compatible as FX2N PLC echelon graph language, instruction system and communication format and FX2NPLC are compatible. Can use process designing of FX2N PLC software consequently, also can use monitoring of general configuration software.
1. 2 users drive develops interface
User basis interface standard, can embed the assembler that fulfils specific function, o of implementation I ／ nods DA of ／ of configuration, AD and other and special function.
① embeds program code deposits an address to be E000H ～ F7FFH.
If express a kind,② user spendable interrupts a source.

③ the user in register area uses an area (20H ～ 23H) .
④ uses an use area in the direct register that find site (58H ～ 67H) .
The user in ⑤ exterior RAM uses an area (3600H ～ 3FFFH) .
Division of ⑥ PLC resources (0000 ～ 5080H) , systematic program and user program all can be visited. Variable area and word variable are divisional do not be like a watch 2, express 3 kinds.

2 application example
Input 7 dot, output to nod PLC design to be with 8 now exemple, show the design process of special PLC.
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