How does the Mitsubishi plc realize the power-off memory function: in the process of controlling the stepping motor through the program by Mitsubishi plc, if there is a sudden power failure. Do we have a way to keep the D8140 and D8142 data off? Moreover, the stepper motor can still remember the current position after the power is turned off.
In order for Mitsubishi PLC to have the above functions, we can write the following program to achieve this function by power-off holding registers.
LD M8002
DMOV D200 D8140
LDI M8002
DMOV D8140 D200
It must be noted that if the actual position of the machine changes after the power is turned off, there will be a certain error with the data saved before the power is cut off. Therefore, it is necessary to pay attention to keeping the current position of all mechanical power failures.
A smoke camera is a kind of camera with the shape of a smoke detector, which is generally difficult to recognize, mainly for concealment. It is mostly used in more Ming-sensing places, in order not to arouse the disgust of the guests.
When the smoke concentration reaches a certain value, the weak current generated by the sensor is amplified by the amplifier and directly drives the camera or drives the camera through the action generated by the servo system, and shoots until it is burned out, so the recording equipment is best as far away from the collection site as possible.
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