[EtherNet/IP] Read/Write Values to a PLC

EtherNet/IP functions are applicable to:

TMflow Software version: v1.82.1000 or above
TM robot Hardware version: HW 3.0 or above

• For hardware configuration of ethernet/ip, please refer to technical document : [EtherNet/IP] Communication Protocol on TM
• For driver configuration tutorial, please referto technical document : [EtherNet/IP] Configuring Devices

Functions

• Read Functions
  o    eip_read_input()
  o    eip_read_input_int()
  o    eip_read_input_float()
  o    eip_read_input_string()
  o    eip_read_input_bit()
  o    eip_read_output()
  o    eip_read_output_int()
  o    eip_read_output_float()
  o    eip_read_output_string()
  o    eip_read_output_bit()

   

• Write Functions
  o    eip_write_output()
  o    eip_write_output_bit()

  
  Detailed explanations and examples can be found in the Expression Editor Manual Download Center

  
  Setting up TM official data type, the tutorial can be found in technical document article title : [ EtherNet/IP Mapping TM User-Defined Data Types to Rockwell PLC] 

  
  Using TMflow to read/send value to a PLC

  
  Step #1: Creating a blank TMflow project and create a project name. 

   

  

  
  Step#2: Insert a 'SET' node  from the left panel.  

   

  

  
  Step #3: Click the pencil icon on the upper left corner. 

   

  

  
  Step #4: Click on the right box (green area). A  pop-up window is shown. 

   

  

  
  Step #5: Choose 'Connection', and select 'EtherNet/IP' 

   

  

  
  Step #6: Choose any function 

   

  

  
  Step #7: Choose any item, and click 'ok'. 

   

  

  
  Step #8: Click 'Insert' and click 'ok' then. 

   

  

  
  Step #9a: Create a variable to store the results. The data type must be compatible. 

   

  

  
  Step #9b: Select variable data type. 

   

  

  
  Step #9c: Create a variable name and click  'ok'.  

   

  

  
  Step #10:  Click 'Add' to add one expression to the set node. 

   

  

  
  The EtherNet/IP function is set successfully.