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Entry type: Product note Entry ID: 99522310, Entry date: 09/10/2014
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Release of the block libraries for operation of a SIMATIC S7-200 with a MODEM MD720 along with the Telecontrol Server Basic

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  • Associated product(s)

 

This releases the two following block libraries for operation of a SIMATIC S7-200 with a MODEM MD720 along with the Telecontrol Server Basic:

·         SINAUT MICRO SC: sinautmicrosc.mwl V2.0

·         SINAUT MICRO SC Sec: sinautmicrosc_sec.mwl V2.0

 

 To operate a SIMATIC S7-200 with a MODEM MD720 along with the Telecontrol Server Basic, revised/new block libraries are available and their applications are listed in the following overview.

Block library

Use with the following products

sinautmicrosc.mwl V2.0

MODEM MD720 or SINAUT MD720-3 and Telecontrol Server Basic as of V2

sinautmicrosc_sec.mwl V2.0

MODEM MD720 and Telecontrol Server Basic as of version V3

 

The block library "sinautmicrosc.mwl" V2.0 replaces the previously available version V1.16 and provides the following additional functions:

·         Increased data consistency due to a checksum check. This is supported by TCSB as of version V3.

·         Revision and improvement of the error signaling of the CPU (blocks).

·         With the additional initialization block INIT_2, it is now possible to initialize the modem without restarting the CPU, for example when replacing a modem.

·         With write jobs from the TCSB to the RTU/CPU, frames were sporadically last due to interrupt problems on the CPU. This problem is eliminated with the block library V2.0

 In contrast to the standard variant "sinautmicrosc.mwl", the "sinautmicrosc_sec.mwl" V2.0 block library provides an increased degree of data security with the following security functions: Authentication of the communications partner, increased data encryption alongside the data scrambling of the standard block library.

Download "sinautmicrosc.mwl": 99522683

Download "sinautmicrosc_sec.mwl": 99522308

 

For more detailed information on the use of the block libraries, refer to the operating instructions MODEM MD720 73513752 and TCSB V3 http://support.automation.siemens.com/WW/view/en/46635999/133300.

 

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
https://www.siemens.com/cybersecurity#Ouraspiration.