1、PROGRAMMING SOFTWARE AND INSTRUCTIONS: Fully compatible with for STEP7 or for WINCC, the programming method and instructions are the same as the original 2、COMPATIBLE WITH ORIGINAL PLC HOST: Adopt pluggable terminals the same as the original, which is convenient for wiring, the same I O pin definition, supports high speed counting and pulse, and can expand the original module 3、GOOD STABILITY: Adopt 3 layer circuit assembly design, independent power supply board, I O board, CPU board the same as the original, with interference proof and stability, easy to maintain 4、INTEGRATE MODULE: The machine integrates 14DI 10DO, can support 7 I O modules and special function modules, and only needs 0.3us to run a single Boolean instruction 5、EXCELLENT PERFORMANCE: Programmable logic controller support 2 high speed pulse output 100KHz, 6 high speed counting input, up to 30KHz