Mitsubishi PLC operation flow chart, rounding - six processing instructions

And input/output instructions ( 1) Input/output refresh command REF REF ( P) Order Numbers for FNC50. Centralized FX series PLC controller of input and output. If you need the latest input information, and hope that the output must use the instructions immediately. As shown in figure 1, when the X0, X10 ~ X17 8 points will be refreshed; When the X1, Y0 ~ Y7, Y10 ~ Y17, a total of 16 points output will be refreshed. High speed counter instructions ( 1) High speed counter setting instruction HSCS Numbers for FNC53 DHSCS instructions. It is applied in high speed counter setting, to counter the current value of the preset value, the counter output contact for immediate action. It USES the interrupt way to make the setting and output executed immediately and has nothing to do with the scan cycle. As shown in figure 4, S1。 ] For the set value ( 100). C255, when the high-speed counter current value of the change from 99 to 100 or from 101 to 100, Y0 will immediately buy 1. Speed detection instructions speed detection of the SPD Numbers for FNC56. Its function is used to test for a given period of time the number of pulses from the encoder input, and calculate the speed. As shown in figure 5, D。 ] Three target element. When the X12 is ON, with D1 X0 input rising along the count, 100 ms after counting results into D0, D1 reset, D1 start to X0 count again. D2 calculation time remaining at the end of the count. Pulse output instructions pulse output ( D) The Numbers for FNC57 PLSY. It is used to produce a specified number of pulses. As shown in figure 6, [ S1。 ] Used to specify the pulse frequency ( 2～20000Hz） ,[ S2. ] Specify the number of pulses, 16-bit instructions for the range of 1 ~ 32767, 32 bit instruction is 1 ~ 2147483647) 。 If the specified pulse number is 0, produces an infinite multiple pulse. ( D。 ] Used to specify pulse output element number. Pulse duty ratio is 50%, pulse output in interrupt way. After the specified pulse output, M8029 sign 1. X10 from ON to OFF, M8029 restoration, stop the output pulse. If X10 to again ON the pulse output from the very beginning. Pulse width modulation instructions pulse width modulation PWM Numbers for FNC58. Its function is used to produce the specified pulse width and pulse sequence cycle. As shown in figure 7, S1。 ] Specifies the width of the pulse, S2. ] Used to specify the pulse cycle, D。 ] The element to specify the output pulse number ( Y0 or Y1) , the output ON/OFF state control by way of interruption. Adjustable speed pulse output instructions adjustable speed pulse output the instructions ( D) Numbers for FNC59 PLSR. The directive the output pulse can be accelerated, also can be adjusted to slow down. Source and target the type of the operands and PLSY instructions are the same, can only be used for transistor PLC controller Y0 and Y1, 16 bit operation can be carried out for 32-bit operations also, nine and 17 respectively step program. This instruction can only be used once.

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