Burkert 8756 BATCH, Operating Instructions Manual

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Type 8756 BATCH
Setting and operation
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Start the dosings:
Go to
Controller > Parameter > Start batch
Enter 1.
The product starts to dose. If the number of dosings to be performed in a row is higher than 1, then the
menu item
Dose counter gives the number of performed dosings.
When the set number of dosings is completed, the value in the menu item Start batch changes to 0.
A second possibility is to start a dosing over the PDO, for example by a PLC.
8.2.4 Cyclic data (PDOs)
The product receives or transmits following cyclic data:
PDO number Meaning
1 Start dosing
Tab. 19: Cyclic data received
PDO number Meaning
1 Duration of the last dosing
Refer to PDO1, Duration of the last dosing [
}
32]
2 Dosing status
Refer to PDO2, Dosing status [
}
32]
Dosing information
Refer to PDO2, Dosing information [
}
33]
Dosed quantity during last dosing (in kg)
3 NAMUR status
Refer to Product status indicator [
}
11]
Error ID
Refer to PDO3, Error ID [
}
33]
Fluid temperature (in K)
Tab. 20: Cyclic data transmitted
The transmission speed of the PDOs can be changed. Refer to Transmission speeds of cyclic data [
}
39]
8.2.4.1 PDO1, Duration of the last dosing
The value of PDO1 is the sum of the valve opening time and the product balancing time. The balancing time
is the time that is needed by the product to detect when the mass flow rate is equal to zero.
8.2.4.2 PDO2, Dosing status
Bit Designation Meaning
0 Init The product is being initialized.
1 Ready The product is ready to dose and is waiting for the command
to start a dose.