Step 1: Set parameters to complete the handshaking function of master and slave stations with the PLC-Link Wizard that is built-in to WPLSoft. (The PLC Link icon is shown in the red square in the screen shot below.) Step 2: Set PLC Link Configuration 2.1 Language: Select language 2.2 Model Selection: Select applied PLC model 2.3 Communication Mode: Select communication mode between PC and PLC 2.4 Open: Open Profile 2.5 About: Check PLC Link version Step 3: Set a PC’s COM to connect with a PLC and the related parameters. 3.1 Baudrate Setting Decided by PLC Setting: Baudrate is set according to COM1 Port in the PLC. 3.2 Baudrate Setting Decided by PC Setting: Baudrate is set according to PLC Link Wizard. Step 4: Set Communication Mode and Transfer Capacity Mode 4.1 Hold the RS485 Setting: After selecting, RS485 communication setting should not be changed when the PLC is operating. 4.2 Communication Mode: Select ASCII or RTU communication mode. 4.3 Transfer Capacity Mode: Select max word number of one time transfer. 16 words: System will automatically set R/W position from D1480. 100 words: Users can set R/W position randomly. 4.4 Slave the PLC Station Address: Select Auto: 32 stations are named in a sequence from the first ID. Select Manual: Users can name the station IDs randomly. Step 5: Check the R/W settings of Masters stations (Screen shot below is an example of Transfer Capacity Mode: 100 words / Slave PLCs Station Address: Auto) Step 6: Set parameters of the handshaking functions of the slave station. 6.1 Linked Model Type: Select “DVP Series” when slave stations are DVP PLCs. Select “Others” when slave stations are other MODBUS devices. 6.2 Linked Model Status: Disable/Enable communication functions with local station. 6.3 Station Address: Station ID of slave stations. 6.4 Read-Master Parameter Setting: Set Starting Device and Data Length for the master station. 6.5 Read-Slave Parameter Setting: Set Starting Device for slave stations. 6.6 Write-Master Parameter Setting: Set Starting Device and Data Length for the master station. 6.7 Write-Slave Parameter Setting: Set Starting Device for slave stations. 7 Check Linked Machine Status 7.1 Synchronic R/W: On/Off Synchronic R/W function 7.2 Linked Times: On/Off auto shutdown of communication functions after certain times when the link receives communication errors. The times are editable. 7.3 Start Monitor: Start linked machine monitoring. 7.4 Set Parameter: Set all the settings 8 To automatically enable PLC-Link, set the program to function automatically after the master station starts for 3 seconds.