NCM350-8 Johnson Controls Metasys Network Control Module

The Johnson Controls 300 Series Metasys Network Control Modules are fully programmable and coordinate and supervise the control activities for all objects and control loops connected to it via Network Expansion Units (NEUs) and Application Specific Controllers (ASCs).

The Johnson Controls 300 Series Metasys Network Control Modules are microprocessor-based intelligent nodes in the Metasys network. They integrate three streams of information: system and database information, application programs, data and Input/Output (I/O) information arriving from the communication ports.

Each system has different memory requirements in terms of database size and capabilities for processing information. Dynamic Random Access Memory (DRAM) memory expansion is available through industry standard SIMMs. The NCM is delivered from the factory with 2 MB of on board memory. This provides 580 KB of database memory (which is approximately equivalent to an NCM200 with an NIM204).

For the -0, -1, and -2 versions of the NCM300/350, Johnson Controls provides four DRAM memory configurations: 2 (default), 4, 6, and 10 MB. The SIMMs are located under the battery pack. DIP switches on the board set the memory configuration that has been installed.