Differences In The Hardware Of The S7-300/S7-400 And S7-1500 - Siemens SIMATIC S7-300 Manual For Migrating

5 Software Conversion
5.3.4

Differences in the hardware of the S7-300/S7-400 and S7-1500

Apart from many innovations in the internal processing (firmware) and also the
improved backplane bus, two hardware properties of the S7-1500 have to be
pointed out. There is a display on the front of the CPU that can be taken off. Thus,
there are not only LEDs available as rough status information on the CPU, but a
detailed display, for example, for firmware versions, diagnostics, interface settings.
The display size depends on the CPU – for the CPUs 1511, 1512C and 1513 there
is a narrow, for the CPUs 1515, 1516, 1517, 1518 a wide display. Since the CPUs
1510SP, 1512SP and the open controller of that type belong to ET 200SP, they do
not have a display.
Figure 5-2 Displays of the CPUs 1511/1512C/1513 or 1515/1516/1517/1518
Another alteration between the two S7-CPU generations is the SIMATIC Memory
Card (SMC). Whilst the Micro Memory Card (MMC) for the S7-300 could only be
written onto (internally or externally) with a special prommer by the SIMATIC file
system, an ordinary card reader can now be used for the SMC. In addition, the
memory available has grown considerably – now cards up to 32 GB can be used
and thus much more complex programs can be created.
Note
You can delete and create folders on the SMC. However, do not format the card
with the Windows card reader, or the storage medium becomes useless for the
CPU.
For more information regarding the SMC, please refer to the system manual for
the S7-1500 in chapter "SIMATIC Memory Card" at:
https://support.industry.siemens.com/cs/ww/en/view/59191792
Migration S7-300/S7-400 nach S7-1500
Entry ID: 109478811, V1.1, 05/2017
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