Pixsys CNV510-PBUS-RTU-A, User Manual

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pag. 18
PROFIBUS IN
    Serial Read
The means of the fields are:
In the field “ Slave ID ” the address of the Modbus device you have to read is defined;
In the field “ Type ” insert the data type of the Register you would like to read. You can choose between “Coil Status”, “Input Status”, “Holding Register” and
“Input Register”.
In the field “ Address ” the start address of the register to be read is defined;
In the field “ NPoint ” insert the number of consecutive registers to be read;
In the field “ Poll Time ” insert the cyclic time to make this request;
In the field “ Max Error ” the number of consecutive errors that the Master waits before discarding the row from the cycle of requests is defined;
In the field “ Position ” the address for the PROFIBUS array is defined;
The field “ Start Bit ” is used for the “Coil and Input Status” and it allows to select which bit of the selected Position using;
If the field “ SWAP ” is checked, the data read is swapped;
In the field “ Mnemonic ” the description for the request is defined.
Figure 6: “Set Modbus Access / PROFIBUS In --> Serial Read” window