IMPORTANT PRODUCT INFORMATION READ THIS INFORMATION FIRST Product: IC693CPU374 CPU Module with Ethernet Interface IC693CPU374-AB with CPU Firmware Release 11.00 Introduction This document contains information that is not available in any other publication; therefore, we recommend you save it for future reference. This document discusses firmware release 11.00, the introduction of a new Series 90-30 CPU module IC693CPU374. CPU364 Features Not Supported in the CPU374 The following features on the CPU364 are not supported in the CPU374: SRTP Channels (COMMREQs for Ethernet messages.) Name Resolution BOOTP Hand Held Programmer AAUI Port Note: External battery module (IC693ACC302) is required to support battery backup for a poweroff time of 1.2 months or greater. (For more details, see Operating Notes on page 4.) New CPU Features Higher Performance CPU The CPU374 features an increase in logic execution speed compared to the CPU364. Boolean contacts execute at a speed of 0.15 milliseconds per 1KB of logic. Non-boolean logic (including C blocks) execute at least twice as fast as on a CPU364. The CPU374 also has hardware support for floating point arithmetic.

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