Hitachi ABB Communication Unit 560CMR02

Hitachi ABB RTU560 product line

Communication module of the RTU560 with 32 bit CPU

• 6x serial communication interface (RS-232 or RS-485) for remote communication 

• 2x Ethernet interface (10/100BaseT) 

• 1x USB port 

• 1x serial peripheral bus 

• battery buffered real time clock

Application

The 560CMR02 communication unit is one of the CMU modules of the RTU560 product line.

The essential tasks are:

• Managing and controlling of the I/O modules via the interface to the serial I/O bus. 

• Reading Process events from the input modules.

• Send commands to the output modules. 

• Communicating with control systems and local HMI systems via the serial interface (RS232) and the Ethernet 10/100BaseT interfaces.

• Communication with Sub-RTU’s, IED’s or multimeter devices via the interfaces (RS485) and the Ethernet interfaces.

• Managing the time base for the RTU560 product line station and synchronizing the I/O modules. 

• Handling the dialog between RTU560 product line and Web-Browser via the LAN interfaces.

Within the RTU560 racks the board occupies two slots. The communication unit is able to handle Ethernet- and UART-character based communication protocols.

The unit has a battery buffered real time clock (RTC).

The unit is available in 2 versions: 

 • R0001: with standard cyber security functions 

 • R0002: with security chip for advanced cyber security functions

Characteristics

On the applied ARM cortex A8 controller AM3352 a real time operating system is implemented. The 560CMR02 is responsible for the interface management, the event handling, the time base and the internal data base. The controller acts as master for the SPB I/O bus (serial peripheral bus). RTU560 synchronizes itself to the time references supplied by 560RTC0x. The time information of the 560RTC0x is provided to the 560CMR02 on the backplane of the sub-rack.

System relevant configuration files are stored in the non volatile flash memory card (removable SD-card™) in order to guarantee a valid system configuration after Power on Reset (PoR).

A battery buffered RTC is used to keep an exact time during power off state.

The communication unit provides the following interfaces:

• Communication Port 1 ... 6 (CP1 ... CP6): serial interfaces according RS232C or RS485 with RJ45 connectors. CP1 and CP2 can be configured independant as SPB I/O bus interface to the front. 

• Ethernet interface 1 and 2 (E1 & E2): 10/100BaseT with RJ45 connector. 

• USB 2.0 device interface for diagnosis and maintenance purposes. 

• The SPB I/O bus is directly connected to the backplane connector.

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