In the field of computer integrated manufacturing (CIM) or industrial automation (IA), many control devices have difficulties in long-distance data transmission, and the anti-interference performance is not good. Address determination is required on the software when multiple lower-level devices are networked. . In response to this, we have developed a stepper motor controller based on a local area network (Ethernet). The network control TCP / IP remote network stepper motor controller uses TCP IP protocol to communicate with the control host (PC), which is stable and reliable. The transmission distance is far (100 meters, it can reach 300 meters through the switch cascade connection, and even the stepper motor can be controlled remotely through the Internet), each stepper motor is assigned a unique IP address, and the transmission of control data is distinguished by the IP address; The number of stepper motors that can be controlled is large (IP address range: 192.168.1.0 to 192.168.1.255, which can drive a maximum of 255 stepper motors; the control host (PC) occupies an IP address); the network construction is simple, and the wiring is not Wireless LAN can be used in convenient places.
Sending a series of ASCII code instructions to this TCP / IP remote network motor controller can control the stepping motor's steering, speed, and stepping amount, without having to understand the working principle of the stepping motor and driver. For example: the control host sends "S102" to the controller of an IP address through the network, the stepper motor will rotate clockwise at a speed of 102 revolutions per minute, and the control host sends "N320" to the controller of an IP address through the network ", The stepper motor will rotate counterclockwise at 320 revolutions per minute; the control host sends" S109J "to the controller of an IP address through the network, and the stepper motor will step clockwise by 109 steps, The control host sends "N1060J" to the controller of an IP address through the network, and the stepper motor will step counterclockwise by 1060 steps. Used for precision speed control, precision motion control, precision machining, etc., the control accuracy is extremely high, the speed error is less than 0.01 rpm, the output drive motor pulse frequency error is less than 0.1HZ, and the single step is 1HZ fine-tuning. It can also be customized with higher precision control board. A large amount of demonstration source code for VB software to control the stepper motor through WINSOCK is provided.
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