
Digital modules
4.7 Digital input module SM 421; DI 32 x DC 24 V (6ES7421-1BL01-0AA0)
S7-400 Automation System Module Data
Reference Manual, Edition 09/2009, A5E00850736-06
109
Sensor selection data
Input voltage
Nominal value
24 VDC
For "1" signal
13 to 30 V
For "0" signal
-30 to 5 V
Input current
With "1" signal
7 mA
Input delay
At "0" to "1" transitions
1.2 to 4.8 ms
With "1" to "0"
1.2 to 4.8 ms
Input characteristics In accordance with IEC 61131-2; Type 1
Connection of 2-wire BEROs Supported
Permissible quiescent current
Max. 1.5 mA
Kommentare zu diesen Handbüchern