Metso D

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Operation, Maintenance, Reporting

Star or ring topology redundant Ethernet network

Remote connections

Reporting, Enterprise integration

Engineering and Maintenance Asset Management, Information Services

ACN RT

ACN RTHigh performance industrial controller

ACN RT is a multifunction controller designed for centralized applications where high processing performance and multiple field buses are required. ACN RT is used for process controls, connectivity, fast machine controls and for advanced controls like fuzzy and multivariable controls.

ACN RT can be used in combination with ACN CS, ACN SR1 and Metso DNA VME controllers.

Key features• High processing power• Fast control cycles, as low as 20 ms• One-to-one redundancy capability• Dual 100 Mbit/s Ethernet connections for

communication with other nodes• Support for multiple field buses• Standard serial port links for communication with

third party devices• Detachable personality module (PMM) containing

identification information of the node.

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InterfacesThe interfaces available in ACN RT are:

Three Ethernet ports in a standard configuration

• Redundant Metso DNA Ethernet networkACN RT has two 10/100Base-T Ethernet ports used for redundant Metso DNA Ethernet network. Metso DNA Ethernet network is based on switched Ethernet technology. Ring topology is recommended, star topology is also possible. ACN RT has one Ethernet interface active at a time. In case of failure, the reserve Ethernet inter-face immediately comes online. On the Ethernet network level, the changeover to the reserve switch takes 30 ms with the recom-mended ring topology and 1...2 seconds with the star topology.

• Interface with Metso DNA I/O field busesBy default, there is one 10/100Base-T port avail-able for Metso DNA I/O field buses. The inter-face to ACN I/O uses an Ethernet field bus and interface to rack I/O uses Ethernet to field bus converter unit (EFC).Three PCI slots can be used for additional Metso DNA  I/O field bus interfaces.

• High Speed Ethernet (HSE) Foundation Fieldbus interfaceHigh Speed Ethernet uses standard 10/100Base-T Ethernet port to High Speed Ethernet Linking Device(s) which have up to four H1 buses connected per Linking Device.

Three PCI card slots

Three PCI slots can be used for additional Metso DNA  I/O interfaces or for field bus interfaces like PROFIBUS DP and Foundation Fieldbus. ACN RT can have different I/O and field bus interfaces combined in the same node.

• PROFIBUS DP interfacePCI card slots are used for PROFIBUS DP inter-faces. DP card is either single or double-channel.

Serial interfaces

ACN RT has two RS-232 ports available by default. PCI slots can be used for additional serial interfaces. The serial interface card is either an 8-channel RS-232 or a double-channel isolated RS-485/RS-422. Multiple serial interface protocols are supported.

ACN cabinetACN RT is mounted on a standard 19” rack in ACN cabinet. Totally eight ACN RT units can be installed in a cabinet. The dimensions of the cabinet are: height 2000, width 900, and depth 600 mm.The cabinets consist of two parts: a 600 mm section for equipment and a 300 mm cable riser. The equip-ment section has place for eight ACN RT nodes. The upper part of the cabinet contains two Ethernet switches that take care of traffic between the ACN nodes and traffic between different ACN cabinets.The power supply of the cabinet consists of three AC/DC supplies connected to parallel. These power supplies are fed by two AC lines.

ACN RT nodes installed in the cabinet

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RedundancyACN RT supports redundant Metso DNA Ethernet networks, redundant controllers (one-to-one redundancy), redundant I/O field buses for ACN

I/O and rack I/O, plus redundant PROFIBUS DB field buses.

Redundancy principles

Single ACN RT with single field bus

Redundant ACN RT with redundant field bus

Single ACN RT with redundant field bus

Function block diagram

EngineeringThe ACN RT controller’s engineering library provides function blocks for controls at all levels, including basic process control, advanced quality, drives, and optimization controls. Fuzzy, MPC, and Java function blocks are available as standard.The Metso DNA Function Block CAD tool (FbCAD) is used for designing function block diagrams for process control loops, sequences, and interface applications.Function block diagrams are saved in a common database located on the Engineering Server. At the same time, a function block diagram is a graphical document of an application, which is loaded in the runtime environment. This ensures that the docu-mentation is always up-to-date.

For more information, contact your local automation expert at Metso.

www.metso.com/automation

The information provided in this brochure contains descriptions or characteristics of performance which in case of actual use do not always apply as described or which may change as a result of further development of the products.

An obligation to provide the respective characteristics shall only exist if expressly agreed in the terms of contract. Availability and technical specifications are subject to change without notice.©

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DiagnosticsACN RT has comprehensive self-diagnostic features. Diagnostics information is available in a form of Metso DNA Operate diagnostic pictures and systems alarms. Diagnostics pictures are generated, no additional application configuration is required.ACN RT has also the front panel LEDs indicating:• CPU status• Metso DNA system and field bus statuses• Power supply status• High temperature warning.

Capacity• The maximum number of I/O channels: 6000,

typical 2000, depending on the control cycles• Control cycles: 20 ms...64 s, typical 400 ms• 1 - 3 I/O field buses, 1 - 6 PROFIBUS DP buses,

1 FF HSE bus, total max. 7 field buses

Technical specification• 2U rack installable frame • Dimensions: 426 x 88 x 379 mm [W x H x D]• Weight: 10 kg • Protection: IP20

• Main board: passive, backplane with 6 slots• Memory: 1 GB DDR 333 MHz• Processor: Intel Celeron 2.0 GHz 400 FSB• Graphics: Integrated• Drives: N/A• Expansion: 3 x PCI, 1 x ISA

• Operating temperature: 0 °C...+60 °C• Storage temperature: -20 °C...+60 °C• Power supply: 18...32 VDC or 230/115 VAC

• Operating system: Real Time Operating System

ACN RT diagnostics picture

ConnectorsACN RT's back panel connectors:• 3 x PCI card slots• 2 x USB ports• 2 x serial interface ports (RS-232)• 1 x alarm input in a PMM module• 1 x PS/2 port for keyboard and mouse• 1 x VGA• 3 x Ethernet ports (PB1, PB2, FB1)• Input voltage 18...36 VDC

F100055 ACN RT node DC or AC supply - ACN RT base unit - PMM module

D200989 Process controller and gateway base license, per node

D200990 Process controller capacity license / 100 I/Os

Licenses and hardware