How to Connect Multiple Screens to Weilen Touch Screen?
1. Determine the Connection Scheme, as follows:2. Hardware WiringThe following are the wiring terminals of the touch screen, which has 9 pins, divided into one group of RS232 and another group of RS485.1) RS232 is used to connect to PLC (COM1) Main Touch Screen Panasonic PLC2) RS485 is used for connection between touch screens (COM2) Main Touch Screen Slave Screen 1 Slave Screen 2All touch screens’ pin 1 are connected together, pin 2 are also all connected together, and the last touch screen, pins 1 and 2 connect to a 120-ohm resistor.3. Screen Parameter Settings1) Main HMIOpen the Weilen software, create a new file, add the host server to serve as a link between the main touch screen and the slave screens, rs485, select con2 (this port is used for the connection of the second touch screen), add the local PLC (connected to Panasonic PLC), use 232 communication, select con1, and set the station number in HMI properties to 0, with other parameters default.2) Slave HMICreate a new slave screen program, multiple can be created, with station numbers set to 1, 2, 3. Each slave screen has only different station numbers, other parameters are system defaults. Add the remote PLC, select remote (as it connects through other screens as a link), main-slave mode, select com2 for rs485 communication, communication settings should be consistent with the main screen’s server settings, other parameters default.Once the above content is completed, communication between one PLC and multiple Weilen touch screens can be achieved.——END——Original from Jicheng Training Network, Author:Chen YuxinUnauthorized reproduction is prohibited; violators will be prosecuted!
