R903A high-speed counter control flag, closed when the high-speed counter is controlled by F162, F163, F164, F165 instructions
NSTP SSTP is a rising edge, so the state cannot be maintained all the time. Coil R1 can not maintain the operation of time relay, you can try Panasonic stepping process special relay DT9060~DT9067
There are three main reasons why plc lights up red. 1, plc motherboard failure, 2, it may also be plc power failure. 3, the plc interface is faulty.
The special internal relay R9000-R903F (64 points) is a special internal relay with special purpose. It cannot be controlled by the user program and its state can only be used as a contact.
INT D0; MOVE DX,AB; END
1. DT90052 is just a register for a high-speed counter or high-speed pulse output flag. H110 MOV DT90052, which means that the CH0 pulse channel is close to the origin signal and encounters near-origin deceleration when returning to the origin. 2.H100 MOV DT90052, which means that the CH0 pulse channel is written to 0 immediately, […]
The R9120-R9123 pulse output command is executing the flag CH0-CH3. R9120 : CH0 R9121 : CH1
TR represents the transistor output, NPN is the open collector output, that is, the output point should be low (0V) when wiring If the output point is a relay, then for example Y0 should be connected to the COM point of the relay coil. OK
DT32764 is a data register (DT0 to DT32764) Processing in 16-bit units for data memory in the PLC program
R9000 is a special relay in the future, R9010 is a normally-on relay, this relay is always on when the PLC is running.