Specifications

Technical specifications
DI 16x24VDC HF Digital Input Module (6ES7521-1BH00-0AB0)
Manual, 07/2014, A5E03485952-AD
27
6ES7521-1BH00-0AB0
Input current
for signal "1", typ.
2.5 mA
Input delay (for rated value of input voltage)
For standard inputs
•
Configurable
Yes; 0.05 / 0.1 / 0.4 / 1.6 / 3.2 / 12.8 / 20 ms
•
with "0" to "1", min.
0.05 ms
•
with "0" to "1", max.
20 ms
•
with "1" to "0", min.
0.05 ms
•
with "1" to "0", max.
20 ms
For interrupt inputs
•
Configurable
Yes
Cable length
Cable length shielded, max.
1000 m
Cable length unshielded, max.
600 m
Encoders
Connectable encoders
2-wire sensor
Yes
•
Permissible quiescent current (2-wire sensor),
max.
1.5 mA
Isochronous mode
Isochronous mode (application synchronized up to
terminal)
Yes
Filtering and processing time (TCI), min.
80 µs; with 50 μs filter time
Bus cycle time (TDP), min.
250 µs
Interrupts/diagnostics/status information
Interrupts
Diagnostics
interrupt Yes
Hardware interrupt
Yes
Diagnostics alarms
Diagnostics
Yes
Monitoring of supply voltage
Yes
Wire break
Yes; to I < 350 µA
Short-circuit
No
Fuse blown
No
Diagnostics indicator LED
RUN LED
Yes; green LED
ERROR LED
Yes; red LED
Monitoring of supply voltage
Yes; green LED
Channel status display
Yes; green LED
For channel diagnostics
Yes; red LED
For module diagnostics
Yes; red LED