Here is an example of a RS485 Modbus RTU network. The master sends a request and the slave will respond to that request only. Modbus RTU will be the serial (RS485) method in which we will communicate between the Productivity 1000 PLC and the Automation Direct Solo Process Temperature Controller.

Solo Process Temperature Controller Manual Our controller is now set to communicate.ĭownload the documentation and/or configuration and monitoring software at the following URL link: We will leave the default unit number as 1. In the Initial Setting Mode we will change the on line configuration to on and make the changes to the Modbus settings as follows: 9600 Baud, Even, 7 Data Bits, 1 Stop Bit, Modbus RTU Format. Here is the way to change into the different modes in the Solo.

The default setting is ‘Off’ for the On-Line Configuration. The solo process temperature controller needs to be setup before we can communicate to it. Wiring diagram – Productivity 1000 to Solo – Serial RS485 Additional information can be found at the following link. The first thing that we will do is set up the Solo Temperature Controller. Web Server – Video Solo Process Temperature Controller Configuration – Modbus RTU Numbering Systems and Tag Database – Videoĭata Handling Instructions Part 1 – Videoĭata Handling Instructions Part 2 – Video Monitoring and Testing the Program – Video Previously in this Productivity 1000 series PLC we have discussed: You will soon see how the Productivity Series of PLC’s is the best way to handle communication to other devices. The PLC will be the master and the Solo process temperature controller will be the slave. Modbus RTU will be the protocol used on this serial communication media. We will be using the RS485 (2-wire) port to communicate to a Solo Process Temperature Controller. It’s a very common protocol used in industrial automation controls. Modbus RTU is an open (published) protocol that uses the Master / Slave architecture.

Serial protocols like Modbus RTU can be utilized with either the RS232 or RS485 ports on this PLC. The productivity series of PLCs comes with 4 built-in communication ports for easy connectivity to your PC or various industrial networks.

Modbus rtu serial communication protoco