Specifications

Technical specifications
DI 16x24VDC HF Digital Input Module (6ES7521-1BH00-0AB0)
28 Manual, 07/2014, A5E03485952-AD
6ES7521-1BH00-0AB0
Electrical isolation
Electrical isolation of channels
Between the channels
No
Between the channels, in groups of
16
Between the channels and the backplane bus
Yes
Between the channels and the supply voltage of
the electronics
No
Permitted potential difference
Between different circuits
75 V DC / 60 V AC (basic isolation)
Isolation
Isolation tested with
707 V DC (type test)
Distributed mode
Prioritized startup
Yes
Dimensions
Width
35 mm
Height
147 mm
Depth
129 mm
Weights
Weight, approx.
240 g
Tolerances of the programmable input delay
Table 6- 1 Tolerances of the programmable input delay
Input delay
Tolerance range
0.05 ms
43 μs to 57 μs
0.1 ms
86 μs to 114 μs
0.4 ms
344 μs to 456 μs
1.6 ms
1.5 ms to 1.9 ms
3.2 ms (preset)
3 ms to 4 ms
12.8 ms
12 ms to 15 ms
20 ms
19 ms to 23 ms