The BL 27x/x series is used as a bus coupler between EtherCAT and K-bus.
Modules of the system can thereby be ope
rated as remote I/O islands. The BL 27x/x can be connected to a control via
EtherCAT and is thereby made an EtherCAT
slave. Two variants of the BL27x series are available:- With four additional
digital inputs (BL 27x/A)- With four additional digital outputs (BL 27x/B)
The BL 210/B (CANopen) and the BL 27x/x series are bus coupler modules that,
in combination with I/O modules,
enable the decentralization and transmission from module islands.

Digital inputs (only BL 27x/A)
Number / type of inputs 4x type 1 (acc. to EN 61131-2)
Voltage range for "1" 15 V ≤ UH ≤ 30 V
Voltage range for "0"-3 V ≤ UL ≤ 5 V
Status display Green LED
Cycle time 1 ms
Usable as interrupt inputs Yes
Response time of the K-bus interrupt 100 μs with 5 kHz input filter
Galvanic isolation No
Debouncing Configurable 1 ms, 100 ms
Digital outputs (only BL 27x/B)
Number of outputs 4
Nominal voltage 24 V DC
Processing time 1 ms
Nominal current of digital outputs 0.5 A at 100 % simultaneity per group
Galvanic isolation No
Status display Orange LED
Protection facility Short-circuit protection
Max. inductive load 100 mJ at 1 Hz
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