Communication between the inverter and DCS
Thread Content
The company has newly installed an Hilscher DCS system to control several motors on site, most of which are equipped with frequency converters. How can the DCS be used to control these frequency converters? Communication is the method being considered
Let’s see which brand’s inverter it is Communication protocol? Mainstream RS485, Profibus DP
First, check what communication protocols the inverter equipped with the variable-frequency motor supports, and select the DCS communication module based on the inverter’s communication capabilities
Generally, there are quite a few MODBUS implementations
It has 4-20ma, as well as Modbus communication.
We have such a need as well, but the system hasn’t been finalized yet
Profibus DP, I guess – it’s widely used and its programming is also straightforward!
For DCS, DP is the best choice. Otherwise, it can also be used for Ethernet communication.
We use analog and digital control, mainly involving three elements: setpoint, feedback, and status feedback
:) Learn about the communication between DCS and frequency converters
Agree to use analog and digital signals to achieve control