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All Unity-based Modicon Quantum CPUs sold before February 2005 have a potential execution issue related to the Modbus Request 05 instruction. This Product Safety Notice covers Unity-based Modicon Quantum CPUs installed on site, products in stock and spare parts.

This Notice does not involve Unity-based Modicon Quantum processors that were released for sale in or after March 2005. These products were updated prior to sale.

NOTE: The 140CPU43412A and 140CPU53414A CPUs were originally loaded with a Concept/ProWORX exec and are affected only if the user has loaded the Unity exec.

Unity-based Modicon Quantum CPUs - OPERATING SYSTEM SV2.03 - Published March 10, 2005
Resolution Repository - Click here to check periodically for new content!

Part Number Description Documentation Firmware Exec
140CPU65150 Modicon Quantum Unity processor Read M 140CPU65150_SV2-03.bin
140CPU65160  Modicon Quantum Unity processor " 140CPU65160_SV2-03.bin
140CPU31110 Modicon Quantum Unity processor " 140CPU31110_SV2-03.bin
140CPU43412U Modicon Quantum Unity processor " 140CPU43412_SV2-03.bin
140CPU53414U Modicon Quantum Unity processor " 140CPU53414_SV2-03.bin
140CPU67160 Modicon Quantum Unity hot standby processor " 140CPU67160_SV2-03.bin
OS Loader QV2.n to PV2.n+1* OS Loader.zip

* File describes the different steps and screens of the OS Loader software.