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Anybus is a registered trademark of HMS Industrial Networks AB

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HMS Industrial Networks AB

Box 4126 300 04 HALMSTAD

Sweden Phone : +46 (0)35 17 29 00

Fax : +46 (0)35 17 29 09 www.anybus.com

MTTF* prediction for Anybus X-gateway Modbus-TCP Simulation method: Telcordia Issue 2, Method 1 Case 3 Simulation environment: Ground, Fixed, Controlled Simulation temperature: 30° C Simulation duty cycle: 100 % Simulation software: ReliaSoft Lambda Predict 3, 3.1.1 Remarks:

Only electrical components included in the calculation.

Discrete components estimated to quality level 1, connectors to level 0.

Predicted failure intensity only valid after running-in period.

Components normally not mounted are included in the calculation.

FIT rates from manufacturers used where available.

Part number Description; Modbus-TCP to… MTTF* value; hours

AB9000-B EtherCAT 544 000h

AB9001-B PROFIBUS 1 034 000h

AB9002-B DeviceNet 655 000h

AB9003-B ControlNet 742 000h

AB9004-B CANopen 755 000h

AB9005-B Modbus-RTU [missing]

AB9006-B EtherNet/IP 811 000h

AB9007-B PROFINET IO 811 000h

AB9008-B Modbus-TCP 811 000h

AB9009-B CC-Link 609 000h

* Note: MTTF = Mean Time To Failure Definition: Estimation of average time to failures with the modeling assumption that the failed system is not repaired (infinite repair rate).

HMS Industrial Networks

March 13th 2012 Martin Falkman Product Line Manager Gateways