In Mitsubishi's L series and Q series PLCs, the command input relay B is an internal relay type that is used for special purposes and is used as a link relay. For example, control between PLC and remote site communication

Devices in Mitsubishi Q series PLC. L represents a latching relay. The latch relay has a power-down hold function. If the latched relay coil is energized during the operation of the plc, the latch relay can remain in the state before the power-off when the power supply is suddenly interrupted.

ON number judgment instruction BON BON, BONP: 16-bit continuous execution or pulse execution instruction DBON, DBONP: 32-bit continuous execution or pulse execution instruction ON digit judgment instruction BON programming format: BON D0 M0 n *D0: Source address, which can be T, D, C, value or bit combination such as K4X0 *M0: destination address, only Y, … Continue reading What is the command of bon in Mitsubishi PLC?

M8048: Signal alarm action M8049: Signal alarm is valid When the signal alarm is valid (M8049=1) and any of the state devices S900-S999 is ON, the signal alarm operates (M8048=1). PS: Signal alarm command: ANS (set), ANR (reset) Mitsubishi PLC English name is also known as: Mitsubish Programmable Logic Controller, which is the main product … Continue reading What is Mitsubishi plc m8048?

DIV is a division instruction D1059 is the divided data register K2 is the divisor 2 The last D058 is to store the operation result Connected is the data in D1059 divided by 2 results stored in D058

The Mitsubishi PLC constant H represents a hexadecimal number and is mainly used to indicate the operational value of the application function instruction. [extension] K is a symbol indicating a decimal integer. It is mainly used to specify the setting value of the timer or counter and the value in the operand of the application … Continue reading What is the meaning of Mitsubishi PLC constant H?

Ld x0 Sfwrp d0 d1 k10 End This means that when x0 is turned from OFF to ON, the content of D0 is stored in d2. The content of d1 is 1. When the content of D0 is changed and x0 is turned OFF→ON again, the content of this D0 is stored in D3, and … Continue reading How to use the SFWR instruction of Mitsubishi PLC

INC is a self-incrementing 1 instruction, followed by P for the edge of the pulse, and only once when the condition changes from OFF to ON. If there is no P, add 1 to each cycle when the condition is ON.

The DEC in the Mitsubishi PLC instruction is the minus 1 instruction in the application instruction. Adding P to the back indicates that the pulse is executed, that is, the instruction is activated once and executed once. For example, the instruction [DEC D100] means that the content in the register D100 is decremented by one, … Continue reading What is the meaning of DECP in the instructions of Mitsubishi PLC?