Siemens Industry Online Support
Siemens AG
Entry type: Product note Entry ID: 109768507, Entry date: 06/18/2019

Firmware V1.1.0 for SIMATIC RF185C, RF186C/CI, RF188C/CI. 

  • Entry
  • Associated product(s)
The most important change is the support of Secure Events according to IEC 62443.


Effective immediately, firmware V1.1.0 for the communication modules SIMATIC RF185C, RF186C/CI, RF188C/CI is available for download.

The most important changes from version V1.0 to V1.1

  • Secure Events
    The firmware enables the logging and forwarding of secure events according to IEC 62443 to increase IT security during simultaneous use of the local user administration.
  • Support of the CI versions of the communication modules
    The new firmware can be used for the communication modules RF185C, RF186C and RF188C as well as for the CI versions RF186CI and RF188CI. The CI versions also support the connection of digital inputs and outputs.
  • Extended WBM features (e.g. Help)

With respect to the user application, firmware V1.1.0 is backward compatible, which means a firmware update does not require any changes to the user program.
Exceptions for commissioning:

  • If the local user administration is enabled, the passwords set at the factory must be changed during initial access.

Update process

The firmware can be updated via the web-based user interface (WBM):

1. Open Internet browser (e.g. MS Edge, Mozilla Firefox, Chrome)
2. Enter the IP address of the reader in your browser address bar -> User interface of the reader appears
3. Select the firmware file under "Firmware update" in the "System" menu
4. Update -> The update process may take a few minutes.


Third-party software – License conditions and copyright information

You can find the copyright information for third-party software contained in this product, particularly open source software, as well as applicable license conditions of such third-party software in the ReadMe_OSS file. 

Special note for resellers

The information and the license conditions in the Readme_OSS file must be passed on to the purchasing party to avoid license infringements by the reseller or purchasing party.

You can download the file here:

 Registrierung notwendig  ReadMe_OSS.html (6.0 MB) 


Product security notes

Update for SSA-307392: Denial-of-Service in OPC UA in Industrial Products

Update for SSA-480230: Denial-of-service in web server of industrial products





Firmware version V1.1.0 for  RF185C, RF186C/CI, RF188C/CI

 Registrierung notwendig  RF18xC_V1-1-0.zip (15,7 MB) 

Description files


GSDML file from October 29, 2018, for the PROFINET integration according to the GSDML Specification V2.33

 Registrierung notwendig  GSDML-V2.33-SIEMENS-RF18xC.zip (28.1 KB) 


Security information
In order to protect technical infrastructures, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art IT security concept. Siemens’ products and solutions constitute one element of such a concept. For more information about cyber security, please visit