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2020/09
8.10.3 Process data mapping
n = offset of input data; depending on extension of station and the corresponding fieldbus.
Data Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Input n AI1 LSB
n + 1 AI1 MSB
n + 2 AI2 LSB
n + 3 AI2 MSB
n + 4 AI3 LSB
n + 5 AI3 MSB
n + 6 AI4 LSB
n + 7 AI4 MSB
NOTE
With PROFIBUS, PROFINET and CANopen, the I/O data of this module is localized within
the process data of the whole station via the hardware configuration tool of the fieldbus
master.
For DeviceNet, EtherNet/IP and Modbus TCP a detailed mapping table can be created with
the TURCK BL20 DTM in PACTware.
Process data Meaning
AI1 LSB low byte of the analog value
AIx MSB high byte of the analog value
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