turck BL20 Series - 7.8.4 Process data mapping; 7.8.5 Diagnostic and status messages

Digital Input Modules
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7.8.4 Process data mapping
n = offset of input data; depending on extension of station and the corresponding fieldbus.
7.8.5 Diagnostic and status messages
LED status displays
Data Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Input n SCWB4 SCWB3 SCWB2 SCWB1 DI4 DI3 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
SCWBx 0 Overcurrent (short circuit) or wire break at the channel
1 Data valid, no diagnostics
LED Display Meaning Remedy
DIA Red,
flashing, 0.5
Hz
Diagnostics pending
Red Module bus communi-
cation failure
Check if more than two ad-joining electronics modules
have been pulled.
Check the supply of the module bus.
Off No error messages or
diagnostics
–
11 Green Status channel 1 = 1
Red Short circuit or wire break
Off Status channel 1 = 0
14 Green Status channel 2 = 1
Red Short circuit or wire break
Off Status channel 2 = 0
21 Green Status channel 3 = 1
Red Short circuit or wire break
Off Status channel 3 = 0