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The Comparison with Siemens S7-300 and GCAN-PLC

In the area of PLC, you may not familiar with GCAN-PLC, but I'm sure you know Siemens PLC a lot such as S7-300. So we are going to compare the GCAN-PLC and Siemens S7-300.

GCAN-PLC-400 and Siemens S7-300 are both modular PLC which is more convenient when you need to add more IO points or communication interface. Let's compare them in following sides:



 

Power supply: Siemens S7-300 and GCAN-PLC both use 24V DC.

Interface: 
Siemens S7-300 intergrated RS485 interface while GCAN-PLC has not only RS485/232, but Ethernet and CAN interface

Isolation: Siemens S7-300 is not isolated but GCAN-PLC is isolated.

Number of expansion units: Siemens S7-300 support 3 and GCAN-PLC support 32 modules

Software: Siemens S7-300 using specialized software and GCAN-PLC supply OpenPCS freely


Programming languages: Siemens S7-300 support LAD, FBD, STL, SCL, CFC, GRAPH and HiGraph. GCAN-PLC support LAD, FED, ST, IL, SFC conform IEC 61131-3

I/O modules: Siemens S7-300 and GCAN-PLC both support DI, DO, AI, AO modules

Price: Siemens S7-300 is about 5 times of GCAN-PLC in price

We can see that GCAN-PLC has almost the same performance with Siemens S7-300 and it is much more competitive. GCAN-PLC is the best choice for modular PLC and please feel free to contact us if you have any questions.