Regarding PLC involved in tank farm control system, it's necessary tell clients the difference between SIEMENS S7-300 and S7-1500. 1. S7-1500 series is much more user-friendly display. 2. S7-1500 series is built-in Ethernet port, more networking capabilities, more possibilities 3. S7-1500 series has more comprehensive control ability 4. S7-1500 series is more user-friendly design 5. The S7-1500PLC has faster processing speed, higher diagnostic capability and higher safety, which not only saves costs, improves production efficiency, but also is safe and reliable, and easy to maintain 6. S7-1500PLC has higher configuration and programming efficiency, making information collection and viewing much more convenient 7. S7-300 series is much cheaper than 1500 series.
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