olzgas.blogg.se - Logixpro batch mix process using all inputs

Now by starting with the first condition which is by pressing START, PUMP-(1) should turn on.Īs we can see in Fig.

“Before we start to discuss our solution, it is very important to give it a try by yourself for just 15 min.” Translating the batching process conditions into Ladder instructionsĪlways remember that programming is not as hard as you imagine all you need is to start step by step and whenever you feel that your PLC code becomes to be complicated and not organized, be sure that you are on the wrong path.

Now and after we have discussed and summarized the batching process operation the next step is to clarify the Input and Output signal list as followed:

Finally, the whole fluid should be discharged using “PUMP_ (3)”.

Then using the MIXER for mixing the fluid for 30 Sec.

Then the HEATER should operate till the thermostat reaches the set point.

Once the level of the fluid reaches to the HIGH_LEVEL_SWITCH, “PUMP_ (1)” should turn off. Fig.

By pressing the start push button, “PUMP_ (1)” which is responsible for filling the tank, should turn on to start the filling operation.

Commissioning the PLC program by downloading your code to the PLC and troubleshooting the bugs and errors, then with swift editions now your code is ready.īatch Simulator using LogixPro PLC SimulatorĪs we discussed earlier in the operation of the batching process, now we are going to start with the first step by summarizing the whole application shown in Fig.

Step by step and always remember, “start simple… and finish simple”.

Start by converting the AFD to the Ladder Logic Instructions.

Identifying the application Input/output signals “making an I/O list”.

Clarifying the operation sequence and interlocks in the form of short and concise sentences “AFD”.

This kind of process is commonly used in many factories with the difference in the type of material being mixed.Īs we said before PLC programming does not need a talented engineer as much as it needs an organized person, here we have basic steps that we need to follow for coding any PLC application: After carrying out some industrial processes such as (heating, mixing, …) the whole mixture is ejected from the tank by a discharging pump.