Analog Output Modules
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10.3.3 Wiring diagram
10.3.4 Process data mapping
m = Offset of output data; depending on extension of station and the corresponding fieldbus.
10.3.5 Diagnostic and status messages
LED status displays
Fig. 218: Wiring diagram BL20-S3x-SBB
Data Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Output m AO1 LSB
m + 1 AO1 LSB
m + 2 AO2 LSB
m + 3 AO2 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
AOx LSB low byte of the analog value
AOx LSB high byte of the analog value
LED Display Meaning Remedy
DIA Red Module bus communi-
cation failure
Check if more than two ad-joining electronics mod-
ules have been pulled.
Check the supply of the module bus.
Off No error messages or
diagnostics
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