Digital Input Modules
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54
with screw connection
BL20-S3S-SBB
BL20-S4S-SBBC
7.3.3 Wiring diagram
7.3.4 Process data mapping
n = offset of input data; depending on extension of station and the corresponding fieldbus.
Fig. 49: Wiring diagram BL20-S3x-SBB
Fig. 50: Wiring diagram BL20-S3x-SBB
Data Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Input n - - - - - - DI2 DI1
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 Value Meaning
DIx 0 Digital input inactive
1 Digital input active
23
22
21
13
12
11
SS
––
++
PE PE
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