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Entry type: Download Entry ID: 109768537, Entry date: 06/19/2019

Sales release of firmware V3.1 for RTU3000C incl. download:

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  • Associated product(s)
With firmware V3.1 of the RTU3000C, the HART/RS 485 extension board also supports the HART Multidrop protocol. In addition, V3.1 releases various enhancements and improvements.

1. Product description  

To take advantage of the improvements in firmware V3.1, all already delivered RTU3010C, RTU3030C and RTU3031C modules can be upgraded. Relevant firmware files are available for the upgrade (see section 3. Download firmware V3.1 in this entry).


The following enhancements and improvements are being released with firmware V3.1:

  1. The HART/RS 485 extension board additionally supports the protocol HART Multidrop, for the connection, for example, of analog sensors for flow rate or level measurement.

  2. Remote access to HART devices on the HART/RS 485 extension board via SIMATIC PDM.

  3. Remote access to Modbus devices on the HART/RS 485 extension board via SIMATIC PDM.

  4. Connecting the RTU3000C to a redundant DNP3 master.

  5. Local logging of security and audit events.

  6. Central logging of security and audit events using Syslog in the RFC 5424 format and UDP transport according to RFC 5426.

  7. Increased configuration limit:

    1. The number of maximum function blocks has been increased from 32 to 48.

    2. Number of digital memory markers has been increased from 32 to 40.

    3. The number of analog memory markers has been increased from 16 to 24.

  8. More efficient "Elliptic Curve Ciphers" (ECDHE-RSA and ECDHE-ECDSA) encryption mechanisms for TLS connections for HTTPS, mail, FTP, DynDNS, and VPN.

  9. Reduction of the dial-in time in the mobile network by configuring a preferred PLMN identifier (PLMN: Public Land Mobile Network).

  10. "Silo volume calculation" function block added: With this extension, another geometric silo shape ("blunt" cone) is taken into account in the volume calculation.


2. Ordering data  

Product name

Order number







HART/RS485 Extension Board



3. Download firmware V3.1  

All RTU3000C modules (RTU3010C, RTU3030C and RTU3031C) are supplied with the firmware version for the TeleControl Basic protocol as standard.

Use one of the following FW V3.1 downloads for DNP3, IEC 60870-5-104, SINAUT ST7 or TeleControl Basic incl. HSP to update the RTU3010C, RTU3030C and RTU3031C modules in the field to firmware V3.1 or operate them with a different telecontrol protocol to TeleControl Basic.


Please note the following before you start the update:

  • Firmware V3.1.11 can only be activated on an RTU3000C with version V3.0.27. Firmware V3.1.11 cannot be loaded from older versions and is rejected in the WBM. Downgrade is only possible to firmware V3.0.27 after update to V3.1.11.

  • The compatibility of the internal configuration of running firmware V3.0.27 is guaranteed. When updating the firmware, the saved configuration is automatically adapted to the new version V3.1.11. Old settings are retained, and new functions are preset with default values. No inserted SD card is required for internal conversion.

  • Configuration files (.cfg files) created with firmware V1.0.37/V2.0.21/V3.0.25/V3.0.27 can be downloaded to an RTU3000C with firmware V3.1.11. These are automatically adapted to the new version.


Third-party software – license conditions and copyright notes

You can find the copyright notes on the third-party software, especially Open Source Software, contained in this product as well as applicable license conditions for this type of third-party software in the ReadMe file. 

Special note for resellers

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

 Registrierung notwendig  Low_Power_RTU_3_1_190517_ReadMe.html (422.4 KB)


Download FW V3.1.11 for DNP3:

 Registrierung notwendig  RTU1123BB00_V3.1.11_DNP3_OSS.zip (1.7 MB) 

Download FW V3.1.11 for IEC 60870-5-104:

 Registrierung notwendig  RTU1123BB00_V3.1.11_I870_OSS.zip (1.6 MB) 

Download FW V3.1.11 for SINAUT ST7:

 Registrierung notwendig  RTU1123BB00_V3.1.11_ST7_OSS.zip (1.6 MB) 

Download FW V3.1.11 for TeleControl Basic incl. HSP:

 Registrierung notwendig  RTU1123BB00_V3.1.11_WDCP_OSS.zip (1.6 MB) 


4. Previous versions:

04.12.2018: Sales and delivery release for firmware V3.0.27 for RTU3000C incl. download: 109762674 

20.08.2018: Restricted delivery release for SIMATIC RTU3031C, HART/RS 485 Extension Board and firmware V3.0 for RTU3000C: 109759991 

03.08.2018: Sales release SIMATIC RTU3031C, HART/RS 485 Extension Board and firmware V3.0 for RTU3000C including download: 109759675 

19.12.2017: Sales and delivery release for SIMATIC RTU3010C and firmware version 2.0 for SIMATIC RTU30x0C: 109751600 

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