The Panasonic FP-XH series PLC itself can only take 6 axes, and the other two axes communicate with the touch screen with a 485 stepper drive, which can achieve the positioning of 8 axes! No need to add modules! The principle is the same as the frequency converter and touch screen MODBUS-485 communication! Learned to use the 485 stepper drive, you can easily play five or six axes with Mitsubishi!
Enter the topic below ~
First introduce the hardware wiring of the 485 stepper driver. The 485 driver has two communication terminals (is this nonsense?) 485A, 485B and our Weilun touch screen (I use TK6070IP) COM2 pin 1, 2 are connected, It doesn't matter if you get it wrong, just change it!
There are also communication settings (see the picture) Note: The DIP switches SW1 to SW8 on the 485 driver are used to set the communication station number and baud rate, don't make a mistake! (See picture) Be sure to set up before communication! My 485 driver has 6 inputs and 2 outputs, and 4 inputs and 1 output are used. When selecting a model, select the input and output points according to your needs. If you add two points, the price will be more expensive! The function of the input point is used to trigger positioning and return to the origin. The output point is the positioning completion signal. The input and output points are completely triggered by the rising edge of the ordinary Y point of the PLC! (See the number of points defined below).
And the wiring of the motor is the same as the ordinary drive! After the hardware is connected, we will find the registers we need to use in the manual. (See the picture) Below I put all the registers I want to use together! Then we fill in the register address on the touch screen. Here we should pay special attention to the fact that the address of Weilun starts from 1, so when the address found is to be written to the touch screen, add 1 or the parameters will not be written correctly!
If you use other touch screens, you must first understand how the communication addresses are arranged, some start from 0, some start from 1, and some may start from 1000 and 10,000, so this address must be found to be right. Correct parameters. When your parameters are set, you can start positioning! There are two axes for rotation angle positioning, I set the subdivision to 3600, so it is easy to calculate! I only have two positions here, occupying two output points to trigger, and one is to return to the origin trigger, and the other is the origin signal input! The output point is positioned to complete the output! 485 stepper drive is basically like this! If it is useful, you can refer to it. The writing is not very good. If there are errors, please point out!
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