Hi

• Overall, the S7-1200 G2 performs much better than the S7-1200.
  • More more processor speed,
  • More work / load memory (and work memory divided as code and data, like S7-1500 family)
  • Works with up to 31 devices with IRT
  • Has 8 High speed counters
• From a constructive point of view, now the communication modules are on the right, along with the IO's. There are now 10 slots, but the 3 CM limitation remains.
• It supports 2 signal board, and all models have two ethernet connectors.
• The S7-1200 G2 has a more compact form factor. This was partly achieved by spring-type connectors (instead of screws) and by a reduction of digital output power at the maximum operating temperature. From the manual, page 240:
  • 40C “Operating temperature range using maximum voltages and maximum specifications
  • 60C “Operating temperature range using rated voltages, 50% of maximum specifications, and alternate I/O active”.
• Applications with PID can be simulated in the SIM PLC.
• From MC's point of view, the S7-1200 G2 is closer to the S7-1500 / ET 200 SP CPU, this means that it gained many features that the predecessor did not have, but on the other hand lost other exclusives of the S7-1200 like the TO_CommandTable.
• There is no option to communication with legacy HMI.
• S7-1200 G2 supports Near Field Communication (NFC). With this function it is possible to read CPU characteristics and configure some of its settings via mobile (IP address, PROFINET name). At the moment only available for Apple devices.

Hi,

for this topic check the table for differences between Generation 1 and new Generation 2 in the following entry.

Comparison to S7-1200

Regards,

Towome

Please update link https://support.industry.siemens.com/cs/ViewDocument.aspx?ArticleID=109973175