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US 2004/0260844 A1Published application
Programmable logic controller with independent pulses generator
OwnerChun-Yen Tuinventor
Life of this patent
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Abstract
A programmable logic controller, which removes the function of pulse wave transmission from a microprocessor and accomplishes it by using the microprocessor to output an command data, which defines the frequency and the number of the pulse waves, to a pulse-transmitting unit and, to execute the function of pulse wave transmission.
Claims7
A programmable logic controller that is used for performing pulse waves outputting, comprising of:
- a microprocessor, for executing a pulse wave output program and outputting a command data;
- and
- a pulse-transmitting unit, which is connected to the microprocessor, receiving command data from the microprocessor thereby performing pulse waves outputting.
A pulse waves outputting method for a programmable logic controller, comprising the steps of:
- executing a pulse wave output program via a microprocessor, and defining the pulse wave frequency and the number of pulse waves;
- setting the serial transmitting initialization value via the microprocessor for serial transmitting;
- and
- transmitting the command data which defines the pulse wave frequency and the number of the waves to the pulse-transmitting unit via the microprocessor in serial transmission.
1 more element
A pulse waves outputting method for a programmable logic controller, comprising the steps of:
- seting the initialization value of the serial transmission via a pulse-transmitting unit for serial transmission;
- verifying the completion of the received data via the pulse-transmitting unit , if the received command data is not complete, then re-verifying the completion of the received data;
- executing pulses wave outputting via the pulse-transmitting unit according to the pulse wave frequency and the number of pulse waves defined by the command data;
- and
- verifying finish of the execution of the pulses wave outputting via the pulse-transmitting unit, if the pulse wave transmission command has been completely executed, if not, re-executing the pulse wave transmission, if it is, then re-verifying the completion of the received data.
2 more elements
Dependencies are inferred from the claim text.