Data Sheet

Source/sink input P-reading
Input characteristic curve in accordance with IEC
61131, type 3
Yes; At 24 V DC
Input voltage
● Rated value (DC)
24V; 48 V, 72 V, 96 V, 110 V, 125 V
● Rated value (AC)
24V; 48 V, 125 V (50 - 60 Hz)
● for signal "0"
-5 ... +5 V
● for signal "1"
+11 V DC to +146 V DC, as well as +154 V DC for 1 s according
to EN 50155
Input current
● for signal "1", typ.
3mA; At 24 V DC
Input delay (for rated value of input voltage)
for standard inputs
— parameterizable
Yes; 0.05 / 0.1 / 0.4 / 1.6 / 3.2 / 12.8 / 20 ms parameterizable with
DC, 20 ms fixed with AC
— at "0" to "1", min.
0.05ms
— at "0" to "1", max.
20ms
— at "1" to "0", min.
0.05ms
— at "1" to "0", max.
20ms
for interrupt inputs
— parameterizable
Yes
for technological functions
— parameterizable
No
Cable length
● shielded, max.
1000m
● unshielded, max.
600m
Encoder
Connectable encoders
● 2-wire sensor
Yes
— permissible quiescent current (2-wire
sensor), max.
1.5mA
Isochronous mode
Isochronous operation (application synchronized up
to terminal)
No
Interrupts/diagnostics/status information
Diagnostics function Yes
Alarms
● Diagnostic alarm
Yes
● Hardware interrupt
Yes
Diagnostic messages
● Monitoring the supply voltage
No
● Wire-break
Yes; To I < 550 µA
6AG2521-7EH00-4AB0 Subject to change without notice
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09/16/2019 © Copyright Siemens