Have you ever wondered what is the frequency of the CPU used by the PLC? So, let this picture tell you the answer.

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Brand Model CPU Manufacturer Main Freq.
GE PAC RX7i Intel Pentium3 700MHz
PAC RX3i Intel Celeron 300MHz
GCAN PLC-511
PLC-510		 STM32 400MHz
PLC-400 168MHz
GE(ShangHai) DCS Intel Pentium2 400MHz
Schneider Quantum 140 Intel Pentium MMX 266MHz
SIEMENS S7-300 Texas Instruments 200MHz(417-4)
150MHz(414-3/414-4H)
S7-400 Texas Instruments
S7-200 C51/Texas Instruments 24MHz
EuroTherm T940X AMD RISC 133MHz
ALLEN BRADLEY PLC IBM Power PC RISC 100MHz
HoneyWell PLC IBM Power PC RISC 100MHz
HollySys DCS Intel 486DX 100MHz
SUPCON ECS-100 ARM 24MHz

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