HCMM2M-0 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
The HCMM2M-0 is a robust heavy-duty connector with IP65 ingress protection in mated condition and a rated current of 100 A. Manufactured by B & R Automation, it belongs to the HCM Maestro PLC Modules series, featuring a durable polycarbonate insulator and copper alloy contacts. It has CE, UL, and CSA approvals.
Internal Product Review
The HCMM2M-0 is a memory expansion module for PLC systems. It integrates a 3.6V NVRAM battery, dip switch controls, Mostek SRAM, and multiple PROM configurations. HCMM2M-0 is commonly used in legacy DCS platforms where secure data retention and chip-based firmware flexibility are essential.
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Product Description:
B&R Automation's HCMM2M-0 memory extension module is ideal for use in industrial automation settings where embedded systems and older PLCs coexist. It allows for system upgrades with extra memory and configuration flexibility, and it connects into rack-based designs utilizing a standard edge connector.
The HCMM2M-0's memory capacity and working status are indicated by the numerous front panel LEDs. The RAM configurations for 1MB and 512K are indicated, and the PROM configurations for 1MB and 512K are also marked. Programming voltage status is indicated by VPP, while I, PE, and PP probably indicate execution or programming stages, respectively. Mostek MK48Z02 NVRAM and AM27C512 PROM chips are among the integrated circuits found in the module. The non-volatile memory is kept alive by a 3.6V green Varta battery. Supporting both signal integrity and power grounding, the board architecture adheres to a symmetrical trace design. The timing functions are supported by a visible oscillator, and power distribution is managed by a voltage regulator in the TO-220 package. Onboard dip switches are used to adjust the configuration. With these parts, it is clear that HCMM2M-0 is a firmware or memory extension for PLC and DCS systems that need persistent memory and customizable settings.
The module's multi-pin backplane interface allows for physical mounting and direct slot insertion in addition to its core components. The HCMM2M-0 memory extension module's labeled PROM sockets allow users to upgrade software or change chips without replacing the board. The module's secured retention clip mechanism ensures that socketed components do not come away even when subjected to vibration. It can work with different memory chip densities, which means it can allow scalable programming. For applications requiring firmware stability and data retention, the HCMM2M-0 is commonly used in control cabinets and vintage DCS nodes.
