Floating point arithmetic instructions include floating point comparison, arithmetic, square root operations and functions such as trigonometric functions. They are located in the order number is FNC110~FNC119, FNC120~FNC129, FNC130~FNC139.(1) binary floating-point comparison instruction ECMP (FNC110) DECMP (p) instruction used is shown in Figure 3-83, to compare two source operands, the result reflected in the destination … Continue reading PLC Floating point arithmetic Instructions FNC110~FNC139

External I/0 equipment in the FX series and peripheral information of the instruction, a total of 10. Respectively is 10 key entered instruction TKY (FNC70), and 16 key entered instruction HKY (FNC71), and digital switch entered instruction DSW (FNC72), and seven paragraph decoding instruction SEGD (FNC73), and with lock save of seven paragraph displayed instruction … Continue reading PLC External I/0 Equipment directive (FNC70~FNC79)

FX Series total 10 article convenient instruction: initial of instruction IST (FNC60), and data search instruction SER (FNC61), and absolute type cam Shun control instruction ABSD (FNC62), and incremental type cam Shun control instruction INCD (FNC63), and teaching timing instruction TIMR (FNC64), and special timer instruction STMR (FNC65), and alternating output instruction ALT (FNC66), and … Continue reading PLC Easy instructions (FNC60~FNC69)

1. And input/output relating to the directive(1) input/output refresh directive REF REF (p) order number is FNC50. FX series PLC Central input/output mode. If you need the latest information and want immediate results you must use the directive. As shown in Figure 3-60, when X0 is switched on, the X10~X17 a total of 8 points … Continue reading PLC high-speed processing instruction (FNC50~FNC59)

1. Interval reset instructionsZRST interval reset instructions (p) number is FNC40. It is of similar components in the bulk reset of the specified range. As shown in Figure 3-53, M8002 OFF → ON time, element M500~M599 mass reduction, the word component C235~C255 a reply.Interval reset commands should be used note:1)[D1.] And [D2.] S, t, y, … Continue reading PLC data processing instruction (FNC40~FNC49)

1. Cyclic shift instructionsRight and left circular shift (d) ROR (p) and (d) ROL (p) numbered FNC30 and FNC31 respectively. Implementation of the directive, all the data to the right (or left) cycle n, and finally moved out one at a time into the carry flag in M8022, as shown in Figure 1.2. Circular shift … Continue reading PLC cycle and shift instructions

(1) the logic and order WAND (d) WAND (p) order number is FNC26. Is a bitwise and operation of the two source operand, and results to the specified element.(2) logical or instruction WOR (d) WOR (p) order number is FNC27. It is a bitwise or operation on the two source operation results to the specified … Continue reading PLC Logical volume operation Instruction WAND, WOR, WXOR and NEG