Description

KONGSBERG Industrial Control Spares

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        MRU-5 Other names:

Sensing controller MRU-5

MRU-5 Ship Sensor

Ship Input/Output Module MRU-5

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Description of changes included in AIM releases 8.3.4 to 8.6.0 The changes included in AIM releases 8.3.4 to 8.3.12 are described in document /D1/. The only change with a potential impact on the safety of the system is the modification of the RBUS driver in order to allow the use of the RTB420 module in 1oo2 applications. As the RTB420 module is not being used for IEC 61508 related applications it must be shown that this modification has been performed in a way which did not change the existing safety functionality of the RBUS driver. Further bug fixes and minor upgrades of the software functionality have been performed. The changes included in AIM releases 8.4.0 to 8.4.3 are described in document /D2/. No safety related change of the system functionality has been introduced. Only bug fixes and minor upgrades of the software functionality have been performed. The changes included in AIM releases 8.5.0 to 8.5.2 are described in document /D3/.

A new controller module called RCU502 including hardware and firmware has been developed. Several software components have been modified in relation to the introduction of the new controller module RCU502. Further bug fixes and minor upgrades of the software functionality have been performed. The changes included in AIM release 8.6.0 are described in document /D4/. Mainly further verification activities have been performed for the new controller module RCU502. Further the system has been modified for future use of the new RMP422S I/O module. Additionally availability problems have been solved and bug fixes and minor software upgrades have been implemented. 4.3. Description and evaluation of the changes associated with the introduction of the new controller module RCU502 4.3.1. Description of the new controller module RCU502 and the use of the module in the AIM Safe System The new controller module RCU502 serves as a replacement of the current controller module RCU501. The new controller module is described in the System Requirements Specification RCU502 and in the System Architecture Specification RCU502, see /D5/ documents: 351158 and 351812.　Ship Automation is a leading supplier of Kongsberg RMP201-8

Remote MultiPurpose Input / Output & Other Ship Spare Parts Supplier equipment worldwide. We Have A Huge List Of Client Ships Worldwide, And Our Sales Offices Are Located In India, China, Greece & UK To Serve Them. We have everything in our store for your rescue. We have a huge stock, almost consisting of all the Automation & Navigation system spare parts. Our prices are as low as 30% of the new price, check our quotes. Remote assistance 24 x 7 x 365. Call 919624 424242 Or Request FREE Quote.Based on a review of the updated documentation for the different components, see /D5/ various documents, and spot checks of the execution of the modification procedure, see /D6/, it can be confirmed that the implemented changes have no negative influence on the safety of the AIM Safe System. The modified software can therefore still be used in applications up to SIL 3. 4.4. Evaluation of other changes to the AIM Safe System which are not associated with the introduction of the new controller module RCU502 Other changes to the AIM Safe System are changes which implement bug fixes and minor upgrades of the software functionality. These changes are in detail described in the AIM release notes, see /D1/, /D2/, /D3/ and /D4/.

The changes have been performed following the agreed procedure for software modifications, the so-called track procedure, see /D5/ document: PRO-2099, Version 3.0.0. During a visit to the manufacturer’s site spot checks have been performed whether the agreed modification procedure has been successfully observed, see /D6/. It can be confirmed that the agreed procedure for modifications has been successfully applied for the implementation of the software changes. It can therefore be concluded that the required Systematic Safety Integrity has not been negatively influenced by the implementation of the modifications and the software can still be used in applications up to SIL 3. Further a hardware change has been performed to the non-safety related frequency inputs of the I/O module RMP420S. Due to availability issues additional resistors have been added on the input side. An impact analysis has been performed for the change and appropriate test activities have been defined and executed, see /D5/ document: CO14963_DRB. The change has no impact on the safety functionality of the device.Evaluation of the changes to the modification procedure (Track Procedure) The procedure for the implementation of modifications, the so-called track procedure, has been updated from version 3.0.0 to version 4.0.0., see /D5/. The main change is the introduction of a detailed description for the track states like creation, evaluation, resolution etc. The tasks and responsibilities associated with each state have been defined in detail. Further the documentation requirements have also been specified in more detail. Additionally some minor clarifications and extensions have been added to the track procedural flow. The changes introduced to the track procedure improve the usability of the procedure and can increase the overall quality for the execution of the modifications. In summary it can be concluded that the updated track procedure, version 4.0.0, is still suitable to perform modifications according to the requirements for SIL 3 according to IEC 61508. 4.6. Application standards The AIM Safe System complies with the relevant requirements of EN 54-2 and can be used within fire detection and fire alarm systems if used in accordance with the application requirements described in EN 54-2. Further the AIM Safe System complies with the relevant requirements of EN 50156-1 can be used within burner management systems if used in a 1oo2 topology and in accordance with the application requirements described in EN 50156-1

Summary The inspection of the changes to the AIM Safe System from AIM release 8.3.4 to 8.6.0 has shown that the changes have been performed in agreement with the requirements of the standard /N1/. It can therefore be concluded that the changes performed have no negative impact on the safety of the system. Further it can be stated that the AIM Safe System still complies with the requirements of the relevant standards (SIL CL 3 acc. to IEC 61508 and IEC 61511) and can be used in applications up to SIL 3 acc. to IEC 61508 and IEC 61511. The software and hardware versions for the current approval of the AIM Safe System are documented in the appendix to certificate No.: 968/EL 161.05/14. The restrictions and conditions of the previous approvals apply. In particular for all applications a safe state must exist and the demand to trip must be defined. The frequency of demands must be low (low demand mode of operation according to the IEC 61508). The user has to ensure that the complete safety function for his application conforms to the required Safety Integrity Level

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Model recommendation:
S72402-NANANA-AC
S72401-NANANA-NA-FW3.75
S72402-PBNANA-NA
S72402-NANANA-NA-030
AKM42GCNAA-50T-108-CR-BSE-C0
AKM44J-ANCDB-00
AKM44H-ANCNC-01
AKM44E-ACCNC-00
AKM43L-KKCNC-00
RMP201-8
MRU-M-SU1
RCU502
RMP201-8