Danfoss AKA 245 Servisní příručka

REFRIGERATION AND AIR CONDITIONINGGatewayAKA 245Manual

PC, Modem or server con-nection(Only handshake signals DTR and CTS can be used)The PC can stop the communication from AKA 245.AKA 245 cannot stop comm

Modem to gatewayUse a standard modem cable.Supply voltage to the modem must be connected, as illustrated (via DO1). This will permit AKA 245 to reset

Functional descriptionThe gateway that has been assigned the master function in a network automatically establishes a table (plant list) containing th

This function will ensure that there is correct communication between the connected units on DANBUSS and LON. There will be constant scanning of all u

Alarms from EKC controllers will also be registered by AKA 245, but if the data connection between the EKC controllers and the gateway is interrupted,

Alarm list in AKA 245The alarm list can be displayed from system software type AKM or from control panel type AKA 21.From AKM: via the “History"

AKA Alarm Table(alarm routing)This function can retransmit received alarms to diff erent alarm receivers via the DANBUSS data com-munication system.The

Printer function Alarm printoutThe master gateway (adr. 125) contains a function that can receive alarm reports from controllers, reformat the message

Data collection in the master gate way Data collection can take place in the gateway, defi ned to be the system’s master.In connection with defi nition

AKA 245 can act as connecting link between DANBUSS and a modem.(DANFOSS can provide information about other modem types that can be used with the gate

ValidityThis manual is from August 2004, and applies to AKA 245 with software version 6.0x.ContentsSystem survey ...

AKA override function AKA 245 contains a function capable of reading values from a given function in a given controller on Data communication. The gat

PO optimisationThe function adapts the refrigeration system’s suction pressure so that it will not become so low that the most heavily loaded refriger

OperationOn AKA 245 there are no buttons. The unit is ex clusively operated via control panel type AKA 21 or system software type AKM.Operation from A

Access limitationPrinter functionOperation via system software type AKMIf a PC with system software type AKM is connected to the system, it will be

SettingsGeneral In the gateway you have to set up the parameters that are to govern the individual functions. The parameter setup is grouped accor din

GATEWAY, Code. Access display and access codeAccess to the gateway takes place with control panel AKA 21 in the same way as for other controllers on D

Time setting.Clock function“Time setting” Access to setting of timer and changeover between summer and winter time.The timer in the gateway is an ann

Confi guration. Access codes and display“Confi guration” Access to reading of programme version and setting of access codes/parameters concerning DANSE

“Network”Setting of the network number at which the gateway is installed.Valid network numbers: 1 to 255.“Address”Setting of gateways address.This set

Communication setup. Setup of communication“Communication setup”The menu gives access to the following three submenus.1) Router (Routing)Before the ro

System surveyGateway types AKA 245 is a system component to be used in conjunction with controllers in the ADAP-KOOL® series of controls for refrigera

b) ModemDisplay and setting of the “Address” fi eld for a selected line in the router table.Selection of port number =1: Address number of the unit th

2) RS232 Port (PC Port)The setup depends on the setting in the gateway type:PC“RS 232 Speed”Display of the communication speed onthe RS 232 line, and

3) LON PortThe function defi nes a valid address range for controllers on the LON bus. The function can also replace the activation of menu O04 in all

Appendix ARoutingThis section contains a more detailed description of the router setting on page 27.The DANBUSS system is a so-called compact coupled

A router table may have a varying number of lines. In the example shown below there is one line.The table always consists of four fi elds when operatio

When an AKA 245 receives a datagram that has to be re-transmitted to an AKC controller, for example, the gateway checks its router table to see where

The PC will now send a message to the AKC unit which is addressed 5:2.The datagram is fi rst sent to the PC gateway which checks in its router table to

Appendix BRepeat routines for alarm handlingDepending on who has been selected to receive alarms, AKA 245 will have the following repeat routines if i

Appendix CData collection takes up this much roomWhen a log is established in an AKA 245 master gateway, room is set aside for data. Just how much roo

Appendix DAddress All units in a network are given an address. The address only concerns the network in which the unit is mounted. In each network th

Technical dataAKA 21When mounted, AKA 21 is connected for setting of address, etc.DANBUSSHere there is a DANBUSS connection from one of the other unit

Appendix E Menu survey AKA 245*1) For PC gateway only*2) For modem gateway only /TCP/IP40 Manual RS8DT102 © Danfoss 09/2004 AKA 245

AKA 245 Manual RS8DT102 © Danfoss 09/2004 41

42 Manual RS8DT102 © Danfoss 09/2004 AKA 245

AKA 245 Manual RS8DT102 © Danfoss 09/2004 43

Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its

DataOn/off inputs (DI1, DI2) Input DI1 is used for the printer’s paper function. DI1 is connected to a contact function which is operated when the pap

Cables(see fi g. page 10 and 11)OrderingFunctions overviewType Specifi cation Number Code no.AKA 245 Gateway 1 only 084B2268Connection between Plug Le

AKA 245 must always be provided with earth connection. This is to guarantee safety for persons and noise immunity.Data communication cable TerminalsNo

DI1, DI2, DO1 and DO2TerminationTo obtain correct data transmission, the data transmission cable must be termina ted.On the PC board next to the DANBU

You may change manually between two diff erent alarm routes. The DI2 ON/OFF input can be connected to a contact function. When the DI2 input is cut in