ABB PCM13 RAM Memory Module PCM 13 H&B Contronic

ABB PCM13 RAM Memory Module PCM 13 H&B Contronic

Basic Information

Model number and specifications: Model number PCM13 is the RAM memory module in this series, with specific model number identification p70933-4-0369304, and a storage capacity of 8k bytes.

Dimensions and weight: Dimensions are approximately 5.0 inches × 1.0 inches × 10.0 inches (12.7cm × 2.5cm × 25.4cm), and the weight is approximately 0 lb 7.1 oz (0.2kg).

Performance Features

Storage Features and Benefits: As a RAM memory module, the PCM13 provides temporary data storage and fast data read/write capability for the system. It can temporarily store intermediate data, programme instructions and related configuration information generated by the CPU during operation, ensuring that the system can quickly access and process such data during operation, thus improving the overall operating efficiency of the system.

System compatibility: The module has excellent compatibility with other components of the H&B Contronic series and can be seamlessly integrated into control systems based on this series. For example, it can work with the CPU modules of the PCP series, various input and output modules, etc., to form a complete industrial automation control system for precise control and monitoring of production processes.

Stable data transmission: PCM13 has stable and reliable performance in data transmission. It adopts high-quality circuit design and signal transmission technology, which can ensure accurate data transmission in complex industrial environments and reduce the possibility of data transmission errors and loss, thus ensuring the stable operation of the system.

Application Fields

Industrial automation control system: In various industrial automation production lines, such as automobile manufacturing, machinery processing, food and beverage production, etc., PCM13 can provide the necessary memory support for the control system to ensure that all kinds of data in the production process can be processed and stored in a timely and accurate manner. For example, in the automotive production line, it can help to store the control programme and movement track data of robots, as well as the operation status data of production equipment, etc., to ensure the efficient and stable operation of the production line.

Process control field: In the chemical, pharmaceutical, electric power and other process control industries, PCM13 can be used to store real-time data of process variables, parameters of control algorithms and historical data records. Taking chemical production as an example, it can store the real-time values and historical change curves of temperature, pressure, flow rate and other parameters of the reactor, providing operators with detailed information on the production process for optimisation and troubleshooting.

Intelligent building system: PCM13 also has important applications in the automation management of intelligent buildings, such as building automation system and security monitoring system. For example, in the building automation system, it can store the operation data and control strategies of air-conditioning systems, lighting systems, lift systems, etc., so as to realise intelligent management and optimal energy control of all kinds of equipment in the building.

The transfer sequence of OTM_C21D can be summarized in following steps: 

• An anomaly occurs on the Line 1 (LN1) 

• Generator start, immediately start generator in case of black-out, phase-loss, overvoltage or undervoltage (If Generator mode is selected) 

• The Line 2 start the normal functioning,  transfer delay Ts 

• Change-over switch (Switch I) to the position 0 

• Change-over switch (Switch II) to the  position II

FEATURE

• Low-impedance busbar protection 

• Stub and T-zone protection 

• High functional reliability due to two independent measurement criteria: 

- stabilized differential current algorithm 

- directional current comparison algorithm 

• Phase-by-phase measurement 

• Reduced CT performance requirements 

• High through-fault stability even in case of  CT saturation 

• Full solid-state busbar replica 

• No switching of CT circuits 

• Only one hardware version for  

- 1 and 5 A rated currents 

- all auxiliary supply voltages between  48 V DC and 250 V DC 

- nominal frequencies of 50, 60 and  16.7 Hz 

• Short tripping times independent of the  plant’s size or configuration 

• Centralized layout: Installation of hardware  in one or several cubicles 

• Distributed layout: Bay units distributed  and, in the case of location close to the  feeders, with short connections to CTs, isolators, circuit breakers, etc. 

• Connections between bay units and central  unit by fiber-optic cables 

- maximum permissible length 1200 m  

- for distributed and centralized layout 

• fiber-optic connections mean interference proof data transfer even close to HV power  cables 

• Replacement of existing busbar protection  schemes can be accomplished without restrictions (centralized layout) in the case of  substation extensions e.g. by a mixture of  centralized and distributed layout 

• Easily extensible