Developing and managing several different PLCs and HMIs can be a real burden on a PC or laptop.  The problems include:

• The different software packages can cause conflicts with each other.  Communication problems are a common example
• Memory gets loaded up with automatically started background services even if you're not using the programs.  This kind of bloat makes everything slower.
• Some packages don't uninstall well and leave behind a lot of files.
• Older legacy software may only run on older operating systems.

To remedy the situation there are some options:

General

1. What is MODBUS?

MODBUS is a commonly used industrial communications protocol. It allows the exchange of data between PLCs and computers. It was originally designed for Modicon (Schneider Electric) PLCs but has become widely used by many PLC manufacturers and industrial networks.

2. Why would I use MODBUS?

MODBUS is a common means of gathering data from many different sources for viewing operations, archiving and troubleshooting from a central remote location. It is widely used and a fairly simple protocol. Depending on the application a newer protocol may have more advantage.

The analog input simulator provides functionality to completely control the inputs of a PLC.

The digital input simulator provides functionality to completely control the inputs of a PLC.

The analog input simulator provides functionality to completely control the inputs of a PLC.

The digital input simulator provides functionality to completely control the inputs of a PLC.