Tutorial On Client Server Communications

Introduction to Modbus Serial and Modbus TCP

client and server are used. Clients could be HMIs or PLCs, while servers could be input/output racks. Like a master, clients initiate commands to a server. Like a slave, servers respond to client commands. However, the proper terminology with client/server communications is that clients initiate requests with servers providing responses.

  Communication, Clients, Server, Server communication