Replacing A Module Without A Programming Device - Siemens SIMATIC S7-300 Equipment Manual

Module replacement
Please follow the procedure below when replacing an older module with the module
described here:
Table 7- 1 Replacing an older module
Originally configured module
6GK7 343-1CX00-0XE0
7.4.3

Replacing a module without a programming device

Replacing the CP with the same or a previous module
• Replacing with the same module
The configuration data of the CP is stored on the CPU. Replacing the CP with a module of
the same type (identical order number) is therefore possible without a PG.
• Replacing with a previous module
For information on replacing previous modules, refer to the information in section module
replacement / upgrading (Page 62).
CP 343-1 Lean
Equipment Manual, 01/2023, C79000−G8976−C198−09
Configuration procedure
Case a: Configuration unchanged / module replacement
If you have no requirements beyond what you had with the
previous CP (for example PROFINET IO mode), you do not
need to make changes in the configuration.
Case b: Adapted configuration / upgrade
If you want to use the extended options of the new CP,
follow the steps below:
1. Replace the previously configured CP with the new
module in STEP 7 / HW Config. You will find this in the
hardware catalog.
2. Expand the configuration according to your
requirements, for example by enabling the CP for
PROFINET IO device mode.
3. Save, compile and download the configuration data to
the CPU again.
Diagnostics and maintenance
7.4 Replacing a module
63