Operating Instructions Display and Operating
Contents
1. Tu Ir Action CY cl my i Ir EN DI Autotuning TT The current status of autotuning is indicated es kine An error leading to a cancellation of autotuning is subsequently displayed Autotuning must then be stopped Display settings A200R Menu Options Comments L U 4 D D The display unit is an A200R parameter and is Unit not stored in the controller u LO de DI d i Ir CC F K LX LI Kl KZ LU DO DO Gs DO T D pel lge Bus cycle time The bus cycle time is entered in seconds 13 Dependencies of different parameters There are parameters which are dependent on other parameters For example the permitted measuring range depends on the selection of the sensor type Setpoint limits are dependent on the set measuring ranges and setpoints must be within setpoint limits It is nevertheless possible to set each parameter individually For example the sensor type may be changed despite the fact that the old measuring range does not agree with the new sensor type In such cases the parameters which are dependent on others are automatically adapted However this means that e g the measuring range also changes after the selection of a sensor Setpoint limits Measuring Meas start a me2. 16 Display Controller 1 8 Display Controller 1 8 During starting Status After the setpoint has Error in a gt 10 b 5 10 been reached a all devices b Device 1 IR EEE ee SC ae Status and error information Display Status Description Device is offline The controller is switched off in this status The outputs are not active and autotuning cannot be performed The measuring signal is available Binary input The binary input is activated The controller performs the configured measure e g second setpoint No status information Type of error Description D el D lt Communication error BUS communication Communication error in norm BUS cycle The corresponding device is indicated Measured value polling of other devices is not interrupted Communication error No more memory available Storing data in the device is endeavoured despite a communication error In this case the data is buffered until the communication works properly again If the amount of data is too big this is indica ted This state must be manually stopped e g by removing the defective device and performing a device reset Ur K Sensor breakage One or serveral connections to the temperature sensor are interrupted Available status infor L SE IR Sensor short circuit Polarity reversal Thermocouple mation is automatically scrolled if
3. of outputs 1 4 auk hani boar e Eu You have to take into consideration that an inverted output is also inverted in the offline status If the effective direction is incorrectly set at the output the heating is fully switched on in the offline status Effective directions of output 1 4 may be entered Normal reverse Alarm outputs 3 4 r LI rm d Unt m pat de L Ir LO rT ss e Zeie Iesel mad rn EN pat U D d i L T I r m CO fr D Lo D Ir a E Ir aa D Ur at An alarm may be selected for different conditions Limit value 1 Limit value 2 Sensor breakage Sensor short circuit Cut of heating loop Polarity reversal thermocouple Timeout communication Alarm set off OR Tra rr J Settings Menu Options Comments Starting circuit l Setpoint profile active Settings Gerke GeEre ble ot Setpoint profile periodical Specify regulated ratio in case of an error Relative limit value In certain settings those procedures are deleted which can also be set without the binary input and which might lead to conflicts with the binary input The setpoint profile may not be configured as active if the binary input activates the set
4. tus must be stopped manually e g by removing the defective device and performing a device reset 4 Menu structure dE 1 Device settings Settings EEEE pence address VR660 VR660 E CH i HE Leer Sea Le i Group Online Offline iE FS Measured value LLE a mal A nora Measuring range minimum and maximum Ett CH CH OH CC H Cp x 5 8 ur BREA Offset and gain calibration bk Eet belt te Ee thermocouple EEB i L Eel Eel EclG Ee We 1 Sensor type Ci Fey EC eet D use mv G ES PIR ERR ke a Thermocouple EE i ra te E Ge Ge Resistance thermometer 2 3 4 wire red yk aie Ed ert ec dk ZU Hl Resistance Ip Wes e GEN Reference temperature Lead resistance Di E E ec L Controller settings Value at 0 C ee SEHR ZE 5 BEET E ep DEN Setpoint and second setpoint Key navigation mlas TOET Lower and upper setpoint limit Measurem Program ay E A Xx Mode 2 Fi Add EREL Positive and negative setpoint ramp s ode igure ress C
5. active by itself i e one of the other settings must be effected Activation by the binary input Activation configured in the settings Please note These table values are the setpoints at the time the setpoint ramp starts This should not be confused with the entry in the configuration software The configuration software offers the option of entering the time at which the setpoint is reached A200R stores the table values which can also be entered in the A200R menu The following diagram illustrates the interdependencies Setpoints 1St setpoint A Rising setpoint ramp F Setpoint profile TEE K SP2 SP3 Entry in A200R Falling setpoint ramp Entry option via PC software D 2 8 t4 11 Time Entry of controller parameters Menu Options Comments ZJ Controller LI f nn The proportional band is stated in the unit of the parameters Ho i input range Pb1 Pb2 Val Il I Enter value HAE Controller a parameters HHHH Unit of the rate time Seconds Tv1 Tv2 Enter value CAE Controller parameters br Unit of the reset time Seconds Tn1 Tn2 E EJ Enter value H E C L qo H You select Regulated ratio limits LI Li megulated ratio a J K L Regulated ratio in case of an error IO DI IO E Z Z J Disturbance variable regulated ratio 2 Di la EI r g Outputs Menu Options Comments Effective direction
6. alarm ron El FUR eE Grnt IGE AG REISE e EIUD e aE Noaction autotuning device online offline second setpoint feedforward control limit value alarm suppression start setpoint profile L 1 Limit value settings ana l Limit for ON state limit value 1 i E 4 Limit for OFF state limit value 1 on d Limit for ON state limit value 2 ot E z Limit for OFF state limit value 2 Ee k Start of actions j 2 6 15 65 DES TE rE GE oF Start stop autotuning Actions Ska aak ollo Online Offline FaF Skrk Setpoint profile ca T e Copy configuration C EI Lead calibration Display settings Settings Hd de Display address A200R Lies i Temperature unit C F K A200R EL tL Bus cycle time 5 Programming Press this key long for programming Pressing the same key briefly selects the respective menu level The flashing content may be changed with these keys t i Entering of a number The respective numbers or figures are changed with the arrow keys t The process is speeded up changing to the next higher figure by pressing the key permanently The changed value is stored automatically after a short period of time or immediately by pressing the key Navigation within a menu is as follows Select menu Execute menu level Leave menu level Device settings Menu Options Comments The device selection address is performed in the Display of measured values mode This device address is change
7. is of importance that each device address exists only once in the system Change of the device address of the temperature controller Addresses 1 32 as well as the device address in delivery state may be set After the device address of the temperature controller has been changed A200R restarts If the device address in delivery state is set this device must be removed from the BUS Otherwise A200R would imme diately allocate a new address to this device Therefore a request is flashed until the user removes the temperature controller After the removal of the temperature controller A200R restarts Exchange of devices The exchange of a device is only possible if it has the delivery state address The device address may be reset using the configuration software A prerequisite is the correct BUS operation i e no com munication errors may occur between A200R and the temperature controller Only one device may be changed at any one time As the device to be replaced is removed this action is recog nised by the lack of communication with this device A200R flashed this error status bUS Err A200R may not be switched off now until the exchange has been completed As soon as the new device has been connected it is recogni sed by and allocates the device address of the old device to the new device Subsequently the new device receives the configuration data of the old device Copying the configurati
8. the whole configuration of a device is read or written This is for exam ple the case when a device is exchanged a new device is added or during the starting procedure Connections Camille Bauer AG 5610 Wohlen Switzerland lt RS232 SINEAX A200R Mat 155524 1068608 009 Manufactured 2004 24 230V AC DC E 45 400Hz 5VA RT 120 Q The jumper serves the connection of the terminating resistors to the RS 485 interface 2 Technical features Display LED 7 segment display Height 14 mm colour red Brightness Adjustable Power gt Nominal voltage 24 230 V AC DC 45 400 Hz Tolerance 15 Power consumption 3 W 5 VA In case of a voltage gt 125 V DC the power circuit must have an external fuse Bus connection lt Interface Number of controllers Bus distance RS 485 Max 32 Max 40 m Terminating resistor Can be connected Bus cycle time 1s adjustable PC connection lt Interface RS 232 Galvanic isolation Regulations Electromagnetic compatibility Ingress protection Safety Operating voltages Degree of pollution All circuits power bus PC connection are galvanicly isolated EN 61000 6 2 61000 6 4 EN 60029 front IP 66 terminals IP20 IEC or EN 60010 lt 300 V between all insulated circuits 2 Overvoltage category according to IEC 664 Double insulation Test volt
9. Operating Instructions Display and Operating Unit A200R 0o00 a a A CAMILLE BAUER A200R Be Camille Bauer AG Aargauerstrasse 7 CH 5610 Wohlen Switzerland Phone 41 56 618 21 11 Fax 41 56 618 35 35 e mail info camillebauer com http www camillebauer com 156 142 02 11 07 ru BAUER Operating Instructions Display and operating unit A200R Read first then Perfect and safe operation requires that this operating instructions as well as the Safety Instructions A200R and VR660 No 156 118 and 156 019 have been read and under stood Contents l Mode Of Operation w2n ai n nee ena 2 2 Technical features weiss green ege ceeeadeceatsewce see ceedecdade 2 3 Overview of display and operating elements 5 d Menu StrUCtUre sssrinin aaraa anaia 8 5 Programming esinsin aae dd 9 Gs QP OratiOMs issii e dee deeg die dee 14 1 Mode of operation A200R in combination with the VR 660 top hat rail controller serves visualising of measured values parameterising of parameters and establishing as well as monitoring smaller bus systems A200R permits indirect access to connected devices via the installed RS 232 interface A2Z00R and every connected device may be configured with the CB Manager configura tion software After the device has been switched on it searches all bus participants The parameters are updated and stored in A200R After the start up phase the measur
10. age II Between all insulated circuits 2 3 kVrms 50 Hz Environmental tests EN 60068 2 1 2 3 6 27 Ambient conditions Operating temperature Storage temperature Relative humidity annual average Functional range Installation Connections 25 55 C 25 70 C lt 75 no dew Indoors up to 2000 m above sea level Power bus connection Cage clamps cross section single wire and fine wire 0 5 1 5 mm PC connection 9 pole D sub female Dimensional sketch 96 Le 2 254 96 GW CK F Q mVs TEB 107 Panel opening 92 8 x 92 08 mm Slave addresses Automatic address allocation Automatic system recognition Process image Pre engineering Visualising Parameter entry Device addresses cannot be freely chosen Permitted are values 1 32 and the device address in the delivery state 7Fh The best performance of the system is achieved if address allocation starts with 1 and does not have any gaps Each address may occur only once in the system The system can be developed and extended by adding one device after the other Each temperature controller in delivery state receives a valid device address after it has been connected to the system After it has been switched on A200R searches all connected devices If another device i
11. ase of temperatures below 199 9 or above 999 9 the digit behind the point disappears It is very important at which point one changes to be programming mode Parameter settings for controllers and actions always refer to the set device address All is a special case and permits actions in all connected controllers E g starting autotuning simultaneously in all devices Different statuses are indicated during the measured value display 1 If autotuning is started the progression of optimising can be seen on the line right at the bottom during the whole opti mising phase The optimising status is indicated by flashing letters i e tUn followed by a figure 1 7 2 If anew device in delivery state is added to the system a flashing indicates on the line right at the bottom that the device is being added to the system Subsequently the parameters are read by the device 3 A device exchange is indicated on the line right at the bottom by a flashing 4 Automatic scrolling of the individual devices is indicated on the first line appears instead of l Data values of the connected devices may be automatically scrolled Simultaneous pressing of these keys O starts scrolling Scrolling is terminated in the same way Please observe Pressing the key can change the display level You return to the desired display level using the key Display of error variables of 8 temperature controllers Display Controller 9
12. d in programming Only free addresses may be selected i e the CH address addresses of devices connected to A200R are 9 not offered for selection in the menu 1 2 3 32 After the address has been changed the display device restarts searches all devices connected to the BUS and reads the configuration of these LO SS CO CO devices In delivery state the temperature controller is inactive The user must activate the controller for controlling Device re th D g Active inactive ZE E DD O Please take into consideration that fa xp al g EI ol in inverted digital outputs the re SE SEN spective output is active despite the deactivated state Measuring input setting Menu Options Comments x The measuring range is entered in the unit Measuring range a which has been set in the Unit menu lt oa Ir L r 2 ei r x minimum value The measuring range can be entered within the sensor limits LJ Enter value It is recommended to set a measuring range which is large as possible Measuring range W Temperature controlling is more efficient if the maximum value temperature is within the measuring range during starting D r J Enter value Menu Options Comments Mr fe Offset correction
13. ed values of all bus participants are cyclically polled If a new device with a valid address is connected to the system during operation it is immediately recognised and the system is extended by this system Anewly added device in delivery state is automatically recognised and a free address is allocated to the device An exchange of devices is also possible The old device is removed from the system A200R keeps all settings of the removed device Anew device in delivery state is added to the system This device first receives the address of the old device and subsequently the same configuration which was stored in the old device Atemperature controller in delivery state has a special device address 7Fh Asystemcan be established with preconfigured temperature controllers This system is automatically recognised after A200R has been switched on even if another system had previously been stored As soon as the system has been established different actions can be performed Autotuning may be started or stopped in individual controllers or all connected tempera ture controllers Under no circumstances may several VR660 devices be simultaneously connected to A200R They must be connected to the bus one after the other Therefore please read carefully about com missioning in Chapter 6 Operation before switching on the system Cyclical polling of the measured values is interrupted while
14. era SEI Device Leave Figure 1 Je next Dr D Increase decrease autotuning D Si menu m scroll m scroll E EE Controller type Device Select Figure 1 e Previous ZE MAE TID 1 2 state PID heating cooling 3 state PID OI H menu m scroll m scroll DH Control parameter SES m e z e r e Display Execute econfirm je confirm Ph i D 3 PB Proportional band Sp y me Eu rm Tv Rate time a LJ ka i Tn Reset time eo elo ER DO CR Ea E m Reset m Reset change change Sg Cycle time leave leave eons Dead band el e Scroll Next Dec ok Specify setpoint profile Mode device oo Number of profile values al m Setpoint e Previous i GE D Time T1 setpoint SP1 device E te GF ID Time T10 Setpoint SP10 Press e short m long H Regulated ratio Settings H H Regulated ratio max min SEH H L ay Setpoint profile SS Regulated ratio in case of an error Periodical setpoint profile ET feedforward control Specify regulated ratio in case of an error DEE Settings Relative limit values Skri rok FE Herc bre EL ore deactivated activated Alarm in one or more conditions Limit value 1 Li Outputs akik P Limit value 2 dur Effective direction i Sensor breakage ot Alte A fe Le 7 a LUE H Effective direction of outputs E Se Fibro nor Moonie bein Reverse polarity of thermocouple Alarms a DE aLi E H Alarm outputs 3 and 4 Timeout communication Lee ok U be JG bout ke Jibs H B iei eee No alarm
15. igure numbers Short Device selection Leave etc change toa Increment digit Increment higher ranking menu t d Automatic incre Automatic Long Increase brightness R e f f menting of figure incrementing Short Device selection Select menu Decrement digit Decrement next menu level Automatic F Automatic Long Decrease brightness Scrolling of menu levels decrementing F e decrementing of figure Selection ot dispia Executive menu level Terminate entry Short isvel ES or call lower ranking Select next digit the value is menu stored F Leave program Leave programming 1 Leave programming 7 ming mode Long Programming mode mode the value is 8 mode the value is not stored immediately changed Cancellation of entry Cancellation of Short the value is not entry the value is changed not changed Long Device reset Device reset Device reset Device reset Automatic scrolling of Short devices Next device Start Stop Long Short Previous device OG Lon Direct selection 9 adjust setpoint 1 Display levels for measured values Device address gt a a gt No a b CG d All lt No gt lt No gt lt No gt lt No gt Deviations of 8 de lt No gt lt Regulated ratio gt vices lt Status gt lt Setpoint gt Horizontal bars s t 1 lt Actual value gt 32 Errors are indicated by a flashing instead of Temperatures are indicated by 4 digits i e in c
16. more than one error status exists The sensor value measured by resistance thermometers is too low Polarity reversal is monitored in the following cases The start of the measuring range exceeds or equals 0 C The end of the measuring range is below or equals 0 C Heating defect If the heating is on for a certain time and the temperature does not increase this represents a heating defect The heating circuit is not monitored in the following cases Controller is offline During autotuning Controller does not have any I portion Tuning error Autotuning is stopped in different situations Device is offline No valid measured value e g sensor breakage In limit value alarms The minimum regulated ratio is not smaller than 0 in a 3 state controller Version error If A2Z00R is not compatible any more to a new VR660 this is indicated as a version error It is not possible to set parameters of this device In this case a cur rent A200R must be used Additional information Description Communication error Error during storage in the device or when triggering an action Errors have occurred when accessing the device and these cannot be rectified despite repeated access procedures The normal BUS cycle is now interrupted and the procedure repeated until the connection to the de vice has been established again If the connection cannot be re established this sta
17. n an in dividual controller or all controllers simultaneously Commissioning is significantly simpli fied ifthe parameters are first set in one controller and subsequently copied to all other devices Thenew device in delivery state receives the device address and all parameters of the removed device Full access Description Setting range Default UNIT Configuration date Device address 1 32 delivery state 7Fh Delivery state TAG A200R Brightness 0 12 8 C _ Unit for display of figures K C et z Display bus cycle time 1 20 1 s Setpoint On Off Access authority Control parameter On Off Full access 3 Overview of display and operating elements Information according to display level Setpoint actual value Regulated ratio Control deviation Status Heating Cooling Error Device address ei A CAMILLE BAUER t A200R Keys Selection of display level measured value regulated ratio status Actual value Unit of measured variable Setpoint Remote access of external software Keys Device selection Menu navigation Brightness setting Cancellation of an entry Device reset Change to programming mode Selection of a menu level Keys Duration Measured value Programming Entry floating Entry of whole display mode point f
18. o that A200R may be able to react correctly to changes in the system If A2Z00R must be used several times the Store configurations mode has to be newly set prior to removing A200R from the system If the mode has been reset to Storage configurations may subsequently not be stored in the devices since the write mode would otherwise be deleted again 15
19. of measured temperature SATAMAA 10 10 of measuring range Offset calibration ott EEE Enter value EAS E BE Gain correction of measured temperature oe Setting range 90 110 of measuring range Gain calibration io EEE Enter value Thermocouple internally externally HE H dl g roo J compensated Select measuring EE E E DI 21 method ETA E HEI Resistance thermometer 2 3 4 wire Haai D J Voltage H E H W Reference value in temperature measurement Reference tempe rat re ET Reference temperature externally ef LH compensated in thermocouple lead resistance Enter value Lead resistance in 2 wire measurement SES bobelpe eee Bee WEE eee K Sot bo ke II Echo Ech The characteristic curves of all temperature thermocouple Sooo EOL sensors listed here are stored in the temperature 0 ECRI ECG controller GERS T H eelu GHP HPGO i After the entry of the material platinum nickel Select resistance FEH DE f the value is entered at 0 C sensor ELE Example 100 0 for Pt 100 Controller settings Menu Options Comments d E L D The first setpoint is entered in the unit set in the Unit menu Setpoint 1 Sek f The setpoint can be entered within the setpoint EEE Enter value limits Setpoint 2 JEDA The second setpoint is entered in the unit set in a gt the Unit menu EEE Enter value SEER Setpoint limit CD ER The setpoint limit is entered in the unit set in the Upper limit EL Unit menu EEE Enter val
20. on from one VR660 to another VR660 If a portable computer is not available during commissioning and if the devices have not been pre engineered commis sioning is laborious The function Copying configuration makes commissioning of several devices of the same kind considerably easier Initi ally the first controller is set using A200R Subsequently the configuration of this device may be copied to all controllers connected to the system Pre engineering of the system A system may be pre engineered with a PC so that a portable computer is not required for commissioning A200R is pro grammed at the office and later used in the target system The configurations of all controllers are stored in A200R If the master is now connected to a system it can store the saved data in the devices A prerequisite is that the existing system agrees with the pre engineered system because A200R has stored the number of devices the system should finally have The system can now be individually developed e g with device addresses in delivery state or with pre configuration device addresses The storing process is terminated as soon as the last device has been connected to the system In pre engineering one should note that A200R is initialised without connected devices device reset and that the con figurations are stored in A200R in this status After successful downloading this setting is automatically set back again to reading s
21. point profile The starting circuit may not be firmly configured if the same is controlled by the binary input 12 Binary input Menu Options Comments Action when J o DO EI activating the binary input CHAN In certain settings those procedures are deleted which can also be set without the binary input and which might lead to conflicts with the binary input Starting circuit setpoint profile No action Autotuning Device Online Offline Second setpoint Feed forward control Limit value alarm suppression Start setpoint profile D _ rs om U Ir EC d i L K di a Ga LI TO TT Mus II by Ir d i Fr D l q O Leg D m Sg LI Ir E U Dat EN d i ai Alarm settings Menu Options Comments j FTI i On state and off state points of limit value 1 and D cnt E o In Te D E limit value 2 ae EE If the on state point is higher than the off state DC DDDDIDDDOD Limit values o H i o EL Hla FE point this involves an upper limit value In a EERE lower limit value the on state point is smaller than the off state point Starting actions Menu Options Comments Start stop autotuning Online Offline Setpoint profile Copy configuration to another device Lead calibration Om Gris Pm fi se Cp eal ize be
22. s added during ope ration the same is also recognised if it has the address 7Fh or an address which does not exceed the maximum address in the system plus 1 A200R acquires cyclically the variables status actual value regulated ratio and setpoint of all connected devices and stores them in RAM The non volatile parameters of all devices are stored in EEPROM of A200R This data is always available in a higher ranking system Data transfer does not only proceed from A200R to ahigher ranking system but also vice versa After the configu rations of the temperature controllers have been stored in A200R they are automatically transferred to the respec tive controller The process data of all temperature controllers can be selected at the dis play The scroll status shows the data of each device one after the other If an error occurs it is automatically indica ted irrespective of which controller is currently visualised Heating and cooling of the controller is displayed for controller parameter monitoring Every device parameter may be dis played and individually entered Access authority Autotuning Copying of configurations Exchange of devices A200R parameter The access via the operating panel may be specified Full access Access to controller parameter Access to setpoint No access The access is set using CB Manager configuration software Autotuning may be started i
23. thod SS d Meas end Kier Reference temperature or lead resistance Controller type LS Min regulated ratio Max regulated ratio gt f Configured Binary input procedure Setpoint profile Autotuning Setpoint decrease Error regulated ratio After a parameter has been entered A200R causes VR660 to correct the dependent parameters In the procedure shown above all parameters to the right of the selected parameter are corrected For example after the entry of the measuring start the setpoint limit and all setpoints are corrected in such a way that they are afterwards within the measuring range If A200R cannot get a parameter adaptation e g due to an interrupted bus connection VR660 behaves like in case of an error keeps its last regulated ratio until this has been corrected 6 Operation The temperature controllers are subject to special commissioning instructions Activation After activation the version is shown on the display A200 1 00 Subsequently connected devices are sear ched Commissioning a With pre configured VR660 devices The temperature controllers are configured using the CB Manager configuration software It is important that each device gets a different device address since otherwise BUS communication is not possible The temperature controllers are connected to A200R before its activation After A200R has been switched on all de
24. ue GEEF Setpoint limit TC ER The setpoint limit is entered in the unit set in the Lower limit fa bet ott Unit menu EEE Enter value 10 Controller type 2 state heating 2 state cooling 3 state Menu Options Comments CELLO SR si 2 7 atl EI The value indicates the positive setpoint rise Positive setpoint HEET unit min ramp CIE NA NA e n The unit is the same as the unit of the setpoint Enter value ree oe BS g E ah The value indicates the negative setpoint rise Negative setpoint DEEL unit min ramp D3EC nen The unit is the same as the unit of the setpoint Enter value 5 E E D The oscillation test can be conducted at a different Setpoint decrease hee setpoint in order not to exceed the setpoint during in autotuning HI Vt ot autotuning Bias is the value which is added to the current setpoint when autotuning is started Enter value Menu Options Comments Control parameters Specifying setpoint profile Control parameters Proportional band 1 and 2 Rate time Reset time Cycle time Dead band 3 state The setpoint profile consists of The number of supports Time values in seconds Setpoints After the selection of the time or the setpoint the corresponding parameter is entered as a numeric value A defined setpoint profile is not
25. vices connected to the bus are recognised and their configuration is read A200R stores the configuration data of all connected devices 14 VR660 devices in delivery state may not be simultaneously connected to A200R under any circumstances They must be connected to the bus one after the other b With VR660 devices in delivery state All devices have the same device address Therefore they have to be connected to the BUS one after the other The newly connected device is recognised by A200R and automatically receives a new device address After the new device has been energised the same is shown on the display and the current con figuration data is read by the device Inserting temperature controllers into an existing system The procedure is exactly the same as for commissioning de vices in delivery state Every time anew device is added itis au tomatically recognised The display adds the device to the list TEER and reads the configuration of the controller The following limitations apply to devices with valid addresses The device address may not be bigger than the maximum address previously used in the system plus one Example If the maximum address in the system is 7 the address of the newly added device must be exactly 8 However if after the addition of the new device a reset of A200R is performed this limitation is not applicable and all devices are again recognised Also in this case it
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