B Power Calculation Table - Siemens Simatic S7-200 System Manual

Programmable controller

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Power Calculation Table

Each S7-200 CPU module (base unit) supplies 5 VDC and 24 VDC power for the expansion

The 5 VDC is automatically supplied to the expansion modules through the bus

expansion port.

Each CPU module provides a 24-VDC Sensor Supply for input points or expansion

module relay coils. You must manually connect the 24-VDC supply to the input points or

relay coils.

Use this table to determine how much power (or current) the CPU module can provide for

your configuration. Refer to Appendix A for power budgets of the CPU module and the power

requirements of the expansion modules. Section 2.5 provides an example for calculating a

power budget.

Power Budget

System Requirements

Total Requirements

Current Balance

Current Balance Total

S7-200 Programmable Controller System Manual

C79000-G7076-C230-02