Siemens Simatic S7-300 CPU 31xC and CPU 31x S7-300 - Manual (Page 160)

Technical data of CPU 31xC
6.6 Technical data of the integrated I/O
CPU 31xC and CPU 31x, Technical data
6-50
Manual, Edition 08/2004, A5E00105475-05
Technical data
CPU 312C CPU 313C CPU 313C-2 CPU 314C-2
Data for the selection of an actuator for
standard DI
CPU 312C CPU 313C CPU 313C-2 CPU 314C-2
Output voltage
• For signal "1" Min. L+ (-0.8 V)
Output current
• For signal "1"
–
Rated value
– Permitted range
0,5 A
5 mA to 600 mA
• For signal "0" (residual current) Max. 0.5 mA
Load impedance range 48 Ω to 4 kΩ
Lamp load Max. 5 W
Parallel connection of 2 outputs
• for redundant load control Possible
• for performance increase Not possible
Controlling of digital inputs Possible
Switching frequency
• under resistive load Max. 100 Hz
• For inductive load to IEC 947-5, DC13 Max. 0.5 Hz
• under lamp load Max. 100 Hz
• fast outputs under resistive load Max. 2.5 kHz
Inductive breaking voltage limited internally to Typically (L+) - 48 V
Short-circuit protection of the output
Yes, electronic
• Response threshold Typically 1 A