Opening and Closing Transparent Communications

 

Introduction

Use the Dial and HangUp function blocks to open and close transparent communications between a controller and a remote device. In such a case, a modem is required at each end.

There are three types of managers you can add to a serial line to exchange requests:

oModbus manager

oASCII manager

oMachine Expert network manager

NOTE: An example that uses Dial and HangUp to open a Modbus connection between 2 controllers is included in EcoStruxure Machine Expert's examples. This file (Modem_Modbus.project) is accessible from the Home menu.

What Is in This Section?

This section contains the following topics:

oDial: Open Transparent Communications

oHangUp: Close Transparent Communications