The pulse frequency card is a device with an interface of 4 PWM outputs and 2 relay outputs. Using RS232, RS485 and TCP/IP communication, PC can configure a pulse frequency card through RS232, RS485 and TCP/IP connection to build data processing and data communication network in field test laboratory, industrial control, intelligent building, automotive electronics and other fields. PWM square wave core control unit.
Pulse frequency cards are small, plug-and-play, and are the best choice for portable system users.
The pulse frequency card provides a simple function to call VB/MFC and other routines and secondary development interface library files. Users can bundle the pulse frequency card to freely issue the corresponding driver and application files.
characteristic:
PC interface: RS232 interface, RS485 interface, TCP/IP protocol;
The power supply uses DC9V-36V power supply.
The power chip adopts industrial grade chip to reduce the interference of the power supply under the premise of ensuring voltage stability;
The power input end has a protection circuit protection to prevent the voltage and current from being too large, causing the equipment to burn out;
Independent watchdog technology prevents the program from running away;
4 PWM waveforms (0-10Khz) with variable frequency and variable duty cycle (DC 0-12V/0-5V), 2 relay output control;
Working temperature: -2 0 ° C ~ 80 ° C;
Instructions:
Connect the external DC 9~36V power supply to the power socket POWER of the pulse frequency card, and then connect the PC to the pulse frequency card through RS232, RS485 or TCP/IP; at this time, the red power indicator (POW) lights up, status indication The light flashes.
