maxDNA

• maxDNA is name of control system. • maxDNA is developed by Metso Automation USA.• maxDNA widely used for power plant automation.• First maxDNA control supplied to RRVUNL Kota Unit-6.• All the modules supplied to Kota unit were imported from USA.• From then all the modules are being manufactured at our EDN

Bangalore unit.• maxDNA control system is customized for specific application.

maxDNA CONTROL SYSTEM

maxDNA - BASIC COMPONENTS

MAXNET Network

MAXSTATION

Remote Processing Unit

IO

SIGNALS

DPU

IO

IO

IO

IO

IO

IO

IO

IO

IO

IO

DPU

DPU

Switch A

Switch B

maxDNA THE REMOTE PROCESSING UNIT

(Control Cabinet)

The equipment includes

DPUsField I/O modulesField terminationsCommunication networksPower supply unit

240V AC to 24V DC converter

Cooling Fan Rack

Rack 1

Rack 2

Rack 3

Primary DPU

Sec. DPU

IO modules

Connectors

CONTROL PANEL HARDWARES

Power Supply Module

Network A port

Network B port

DPU Backup Cable

Network Healthy

Backup Indication

Reset Button

Takeover Button

Mode Switch

Run - F

DPU 4F

DPU,WKS & N/W SWITCHES ADDRESS

Control Panel ( Rear View)

Terminal Block

maxDNA RPU COMPONENTS

•The Distributed Processing Unit (DPU4F) is the process controller.

•The Model 4F Distributed Processing Unit (DPU) is a multifunction controller and data acquisition processor that executes

control algorithms, sequence logic, sequence of events time tagged to 1 ms

resolutiondata acquisition.

maxDNA DPU4F (CONT.)• The heart of the DPU is a database called

the Distributed Point Management System (DPMS). The DPMS is fully aware of the tag names, hierarchy, and other text attributes of its configured points. It is loaded with a configuration created by the Systems engineer and executes that configuration to provide the control and data acquisition functions required.

• The DPU 4F resides directly on the MAXNET communications network without the need for servers.

PS

PS

PS

PS

PS

PS

DPU

I/OI/OI/OI/OI/OI/O

I/OI/OI/OI/OI/OI/O I/OI/O

DPU

I/OI/OI/OI/OI/OI/O

Switch

Switch

I/OI/OI/OI/OI/OI/O I/OI/O

Schematic arrangement of RPU Cabinet

IOP382 eight pack rack

I/O Bus Connector

Field 24V

Field 48V

System 24V

I/O Bus Connectors

maxDNA RPU Cabinet

IO Racks

Use a ribbon cable to interconnect in daisy chain style two or more adjacent I/O chassis assemblies in the same I/O cabinet group. One end of the ribbon cable plugs into P10 of the first I/O in the string. The other end of the ribbon cable connects to P9 of the next I/O in the string. Continue this P10 to P9 sequence until the last I/O in the string is reached. See Figure.

Terminator

P9

P10

P11

P9

P10

P11

P9

P10

P11

P9

P10

P11P9

P10

P11

P9

P10

P11

P9

P10

P11

P9

P10

P11

maxDNA RPU Cabinet

Ribbon Cable

I/O Connector

Backplane Rack

maxDNA I/O Modules

Analog Input Digital Input

Part Number Description Part Number Description

IOP301 Isolated analog input; 16 channels IOP330 24 Vdc common input; 16 channels

IOP302 4-20mA common input; 16 channels IOP334 24 Vdc isolated input; 16 channels

IOP303 3-wire RTD input; 8 channels IOP351 Form A/B relay; 16 channels

IOP304 Thermocouple/emf input; 16 channels

IOP305 Voltage common input; 16 channels

Analog Output

Part Number Description

IOP320 4-20 mA common output, 8 channels

• Bus address 00 to FF (256) • DI module address – 0 to 31• AO & DO module address – 32 to 252• DI Module – one bus address• DO module – one bus address• AI module – two bus address• AO module – eight bus address

TYPES OF I/O MODULES USED

I/O Module

Address Switches

Dongle Card

DONGLE CARD

• LICENCE KEY TO USE MAX DNA SOFTWARE

• INSTALLED ON COM PORT WORK STATIONS

• DIFFERENT SOFTWARE FOR EWS/OWS DONGLE

COMMISSIONING SEQUENCE

A- PANEL POWER-UP• Check cabinet installation as per drawing( system O&M manuals).

• Check for any physical damage.

• Checking of hardwares as per configuration diagram.

• Verify I/O module addresses.

• Verify that modules are properly inserted in back plane.

• Ensure that DPU mode switch is kept at F.

• Verify that all backplanes are connected with ribbon cable and terminator is put to last backplane slot.

• Remove all P2/P3 connectors from the I/O modules to isolate field terminations.

• Ensure the panel electronic & power supply ground earthing.

• Ensure that no wirings are loose terminated.

• Check for power supply before power-up.

• Ensure that power supply connectors are properly connected to backplanes.

• Switch on power supply and check for 24VDC supply.

• Observe that DPUs boot-up and LED indications.

B-COMMUNICATION WITH EWS• Set the EWS and connect the peripherals including respective dongle card.• Boot-up the EWS• maxStartup program automatically start and minimizes.• maxStartup software version is 4.2.1.SP-2• Without dongle card maxStartup program can not be started.• Power on network switches• Connect the network cable as per layout• Establish the communication with EWS.• Verify the DPU address at EWS.• Load the application software and verify the “ACTIVE” LED of I/O module are

green. ACTIVE indication should not blink.• Unfreeze the outputs. All the outputs freezed when full application software is

loaded to DPU.• Connect P2/P3 connectors sequentially and proceed for loop checking.