Product Details：

Honeywell 51197564100 (51197564-100) is a rack plug-in memory expansion module for Honeywell TDC3000 HPM High Performance Process Manager rack,its main purpose is expanding the on-board storage space for control strategy,loop configuration,calculation parameters and runtime data cache of HPM processor. This memory board works synchronously with the dual-node HPM CPU board,stores large-scale PID control programs,interlock logic,sequence batch formulas and point database downloaded from the engineering station. It caches real-time sampling values uploaded from UCN IOP modules during system operation to ensure the continuous and stable execution of complex multi-point control schemes. It supports battery backup design. When the rack AC power supply is interrupted,the built-in backup battery can retain the stored configuration data for a certain period,avoiding the loss of control configuration caused by sudden power failure and long-time re-download work. It supports redundant HPM rack architecture. The memory data of primary and standby nodes can keep real-time synchronization to realize bumpless switchover when the main controller fails. It continuously monitors memory read-write parity state,data synchronization error and backplane bus communication quality,records timestamped fault logs and uploads memory parity error alarm information to LCN operator station for maintenance personnel to check and replace. It supports hot swap operation under lockout-tagout maintenance procedure,reducing the interruption risk of critical process control loops. It is a scarce original spare memory board for old TDC3000 HPM projects,matched with HPM dual node processor board,dual node power supply and NIM gateway module.

Key specifications：Plug-in memory expansion board for TDC3000 HPM chassis,real-time data cache and configuration storage,battery-backed memory,proprietary HPM backplane interface. Operating temperature range is 0°C to +60°C. It supports parity error,data synchronization loss and bus communication timeout fault diagnosis. The PCB is conformal coated for dust-proof and anti-surge performance. Front panel LED indicators display memory running status,active/standby synchronization state and fault warning for quick on-site inspection.

This memory module is widely deployed in petrochemical,chemical,power generation and water treatment plants for legacy TDC3000 DCS HPM control rack upgrade and spare replacement projects. It cooperates with Honeywell NIM gateway,UCN communication cable and HM history module to build LCN+UCN distributed high-performance control architecture. As a core unit for HPM memory module and controller memory board,it is the extended storage carrier for TDC3000 high-performance process manager. Clearly defined edge connectors simplify rack installation,configuration download test and regular memory data synchronization verification work for control engineers.