8/4/2020 1:00 PM | |
Joined: 5/3/2017 Last visit: 5/21/2024 Posts: 673 Rating: (217) |
Hi YOGYAU, the DoseL-block from the APL is not really complicated. The blocks has the operating modes:
as the most other APL blocks, like PIDConL, valves- or drives blocks. For more details see the chapter Operating modes of the blocks from the manual SIMATIC Process Control System PCS 7 Advanced Process Library. The block provides the following states:
In the state "On" the DoseL block can control 2 vales. One for a big flow (coarse) and one smaller flow (fine). The coarse flow control output is active if: DQ_Out < DQ_SP – DQ2_SP. The fine flow control output is active if: DQ_Out ≥ DQ_SP – DQ2_SP. If you set the Feature.Bit7 = 1 you activate the calculation of the flow rate. This is used if you want to dose with a PID and a analog valve or controlled drive. And with the Feature.Bit5 you can specifying the dosing type. With Feature.Bit5 =1 you use a scale. These are most relevant functions of the DoseL-block, for all functions see the manual SIMATIC Process Control System PCS 7 Advanced Process Library in the chapter DoseL functions. With regards |
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