Calculating a power budget
Form for calculating your power budget
Use the following table to determine how much power (or current) the S7-1200 CPU can
provide for your configuration. Refer to the technical specifications (Page 1359) for the
power budgets of your CPU model and the power requirements of your signal modules.
Table B- 2
Calculations for a power budget
CPU power budget
System requirements
Total requirements
Current balance
Current balance total
1558
5 V DC
Minus
5 V DC
Equals
5 V DC
24 V DC
24 V DC
24 V DC
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK