HMI – DTC

Trying to complete our communication library, today we will show you how to communicate some HMI with our Temperature controllers.

Delta Automation have several models of Temperature controllers, in this case we need the ones with communication feature (almost all of them).
Please refer to the next link for further information.
DTC Delta temperature Controllers

Like all the communication examples, we start fixing the protocol we are going to use. In this case:
RS485 Modbus ASCII
38400 bps
7 Data Bits
Parity Even
1 Stop Bits

So once we have decided the protocol, we have to implement it on both devices.
To implement to the HMI please refer to the HMI- 3 PLC communication example post.

To implement to the DTC please download the next video, where is explained step by step how to configurate some DTC trough Computer.
HMI – DTC control (Password:1234)

In case that you already have some DTB or DTA, you can do it following the instruction manual.
DTA Instruction Manual
DTB Instruction Manual

And finally here attached some DOP-B program example for control by communication some DTC (Delta Temperature Controller).
HMI – DTC control Example

And if you need to add some internal register of the DTC, and you can found it on the example, just take a look to the DTC manual, and you will found the Modbus table.
DTC Instruction Manual