Issues with field instrument signals to DCS
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Apart from being displayed on the control cabinet’s IO module and then shown on the central control screen, are there any other ways to display the signals from the field instruments? (In the Hilscher system, valves that are interlocked with temperature values can be viewed along with their specific station numbers; these details are also visible on the channel control screen. However, for this temperature value, the station number and channel number are not visible. The technicians here say that this temperature value is transmitted via communication. Could someone explain how this communication works, especially in relation to the Hilscher K series?)
It might be an AM intermediate value; it’s impossible for a single point to handle communication
It’s not just this one point; I see many such points on the screen. Could you explain a bit how this communication is achieved?
I don’t quite understand; for example, in the case of two-wire instruments, where should the wires from the field be connected?
I just want to ask how this hardware is connected. We don’t have any diagrams here, so I was wondering if anyone has dealt with something like this before
Of course, it goes into the module – communication-related tasks go into the communication module – but there’s also an address. Don’t you have a system diagram in your screen?
I have never used Allen-Bradley systems. However, the communication point is what is commonly known as the soft point. It is likely the data transmitted through communication between the PLC of the on-site packaging equipment and the DCS; commonly used protocols are MODBUS and PROFIBUS-DP
The Modbus module costs over 10,000; it’s more likely to use DP directly