Siemens SIMATIC S7 - Calculating Your Power Requirement

Calculating a power budget
B.3 Calculating your power requirement
S7-200 SMART
790 System Manual, V2.3, 07/2017, A5E03822230-AF
B.3
Calculating your power requirement
Calculating your power requirement
Use the table below to determine how much power (or current) the CPU can provide for your
configuration. Refer to the technical specifications (Page 679) for the power budgets of your
CPU model and the power requirements of your digital modules, analog modules or signal
boards.
Table B- 2 Power budget
Power budget
5 V DC
24 V DC
minus
System requirements
5 V DC
24 V DC
Total requirements
equals
Current balance
5 V DC
24 V DC
Current balance total