Module Replacement / Upgrading - Siemens SIMATIC S7-300 Equipment Manual

Diagnostics and maintenance
7.4 Replacing a module
7.4.2

module replacement / upgrading

Replacing a module
The CP 343-1 Lean described here (6GK7 343-1CX10-0XE0 firmware version 3.0) can be used
as a replacement for the following predecessor products:
• CP 343-1 Lean (6GK7 343-1CX00-0XE0)
When replacing a CP 343-1 Lean (CX00) with a CP 343-1 Lean (CX10) and a STEP 7 version
< V5.4, all the previous functions remain available. Any port settings made for Ethernet
are adopted for port 1.
The additional second RJ-45 port is also available in the "Automatic setting" mode.
• CP 343-1 Lean (6GK7 343-1CX10-0XE0, firmware version V1.0, V2.x)
All previous functions remain available. In addition, the new functions compared with the
firmware version of the previous product are also available.
Upgrading
The following predecessor products can be upgraded on the CP 343-1 Lean
(6GK7 343-1CX10-0XE0) described here.
Refer to modules in "Replacing modules".
Interface in the user program
Note
You should always use the latest block versions for new user programs. You will find
information on the current block versions and the current blocks for downloading on the
Internet under:
Link: (https://support.industry.siemens.com/cs/ww/en/ps/15342/dl)
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Equipment Manual, 01/2023, C79000−G8976−C198−09
CP 343-1 Lean