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Communication functions

6.3 Modbus

communication

The EQJW245 can respond to enquiries in the Modbus RTU protocol as a slave.

For this purpose, an RS-485 two-wire bus is connected to terminals 18 and 19.

A suitable Modbus master (BMS centre) can send enquiries or commands via

this bus. Up to 247 devices can be addressed in a communication network based

on the Modbus RTU protocol via an RS485 interface. Up to 32 devices can be

connected within a bus segment.

To enable the function, CP02 must be set to 2 (see Section 3.2.3). A unique

address must be assigned at CP05 and the transmission speed (Baud rate) must

be selected with CP03. The data format supported by the controller is 8n1, i.e. the

data format comprises 8 data bits, no parity bits and one stop bit.

The following commands are supported:

Read Coil:

AA 01 XX XX 00 01 CC CC

-- -- ----- ----- ----- Coils =

Adr RC CoilNr Coils CRC

Anzahl d. zu lesenden Coils

Antwort:

AA 01 01 YY CC CC

-- -- -- -- -----

Anz =

Adr RC Anz Dat CRC

Anzahl der folgenden Datenbytes

___________________________________________________________________

Read Holding:

AA 03 XX XX 00 01 CC CC

-- -- ----- ----- ----- Reg. =

Adr RH HR-Nr Reg. CRC

Anzahl der zu lesenden Register

Antwort:

AA 03 02 XX XX CC CC

-- -- -- ----- -----

Anz =

Adr RH Anz Daten CRC

Anzahl der folgenden Datenbytes

___________________________________________________________________

Set Coil:

AA 05 XX XX YY 00 CC CC

YY = 0xFF zum setzen,

-- -- ----- ----- ----- 0x00 zum löschen
Adr SC CoilNr Data CRC

(Antwort identisch)
___________________________________________________________________

Set Holding:

AA 06 XX XX YY YY CC CC

-- -- ----- ----- -----
Adr SH HR-Nr Data CRC

(Antwort identisch)

___________________________________________________________________

Modbus communication-commandos

Fig.8

Summary of Contents for equitherm EQJW245

Page 1: ...www sauter controls com SAUTER equitherm EQJW245 Electronic heating controller Operating manual 7010042003 A ...

Page 2: ...2 127 www sauter controls com EQJW245 ...

Page 3: ...nge SERVice parameters 21 3 2 4 List of SERVice parameters 21 3 3 SERVice level 22 3 3 1 Access to SERVice level 22 3 3 2 View SERVice parameters 23 3 3 3 Change SERVice parameters 24 3 3 4 List of SERVice parameters 24 3 3 5 Explanations for individual SERVice parameters 28 3 4 Communication level 46 3 4 1 Access to communication level 46 3 4 2 Viewing the communication parameters 47 3 4 3 Changi...

Page 4: ...switching programme for pilot timer circulating pump 71 4 11 Calling up the weekly switching programme 72 4 11 1 View switching command 72 4 11 2 Enter switching command 72 4 11 3 Change delete switching command 73 4 12 Once only tank charge 73 5 Manual mode 75 5 1 Access to manual mode heating 75 5 2 Access to manual mode heating circuit II 75 5 3 Access to manual mode domestic water configurable...

Page 5: ...model 2 95 8 2 3 Control model 3 96 8 2 4 Control model 4 97 8 2 5 Control model 5 98 8 2 6 Control model 6 99 8 2 7 Control model 7 100 8 2 8 Control model 8 101 9 Economy tips 103 10 Resistance values for the Ni1000 sensors 105 11 Accessories 107 12 Wiring diagram 109 13 Dimension drawing 111 14 Technical data 113 14 1 Overview of technical data 113 14 2 Overview of main functions 114 15 Overvie...

Page 6: ...6 127 www sauter controls com EQJW245 Content Table of figures 121 List of tables 123 Index 125 ...

Page 7: ...of the product Factory setting of the EQJW245 e g manufacturer s specified control values switching times etc Warnings The operating instructions explain the various functions of the device step by step using the following symbols PROG is shown on the display flashing 09 00 is shown on the display not flashing Press key NOTICE 09 00 PROG ...

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Page 9: ...perature TFS setpoint for flow temperature TFsmax maximum limitation for setpoint of TF TFsmin minimum limitation for setpoint of TF TR room temperature TRF return temperature TRi actual value of room temperature TRmax maximum limitation of adjusting range for TRS TRmin minimum limitation of adjusting range for TRS TRS setpoint for room temperature TS W heating limit TW domestic water temperature ...

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Page 11: ... time twice a year The equitherm EQJW245 incorporates a variety of protective functions such as the anti frost function and the pump anti Yesmming facility Additional functions such as automatic switch off are also implemented For every installation these features ensure optimal comfort with the minimum use of energy Analogue or digital room operating units can be connected to the EQJW245 enabling...

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Page 13: ... three rotary switches with 10 positions an input knob and a button Top 2 2 Rotary switches heating 1 The switch positions have these meanings EQJW245 Top Rotary Switches Fig 2 Operating modes Inputs Automatic mode according to swithing programme Setpoint adjustment normal Mode Regulator is continuously in normal mode1 Setpoint adjustment Reduced mode Regulator is continuously in Redu ced mode Ent...

Page 14: ...nction is active Bottom rotary switch domestic water 2 4 EQJW245 Bottom rotary switch domestic water Fig 4 Operating modes Inputs Automatic mode for domestic hot water according to switching programme Setpoint for increased domestic fot water temperature Continuous heating to increased domestic water temperature Sollwert normale Trinkwassertemperatur Continuous heating to normal domestic water tem...

Page 15: ... what the symbols mean 0 1 2 3 4 5 6 7 8 21 22 23 24 Times for normal mode on the current day Time date setpoints actual values etc Automatic mode according to the weekly and calendar switching pro gramme flashing temperature change for limited unlimited period Heating circuit is in normal mode flashing Optimisation takes place on changing to normal mode Heating circuit is in Reduced mode flashing...

Page 16: ...r is in summer mode Calendar switching programme mode is currently active Domestic water flashing with increased temperature 4 Charge pump switched on 3 Configurable relay output e g for 2nd charge pump activated An error has occurred see 7 Screed curing function function heating or ready for laying heating active ...

Page 17: ... 1 time To enable you to set the time you must first move the bottom rotary switch into one of the following positions see 4 1 Off mode Continuous heating to normal domestic water temperature Continuous heating to increased domestic water temperature Automatic mode The middle rotary switch must be in one of the following positions see section 2 1 Back up mode Reduced mode Normal mode Automatic mod...

Page 18: ...ry switch into one of the following positions see 4 1 Off mode Continuous heating to normal domestic water temperature Continuous heating to increased domestic water temperature Automatic mode The middle rotary switch must be in one of the following positions see section 2 1 Back up mode Reduced mode Normal mode Automatic mode 15 06 Set the top rotary switch to automatic 1 mode The time is shown Â...

Page 19: ...abled Incorrect parameterisation setting of the heating controller It can cause major faults or damage to the installation The commissioning level must only be enabled by a specialist Some of the parameters cannot be changed They can only be viewed version number status information Access to commissioning level 3 2 1 In order to access commissioning level the bottom rotary switch must first be mov...

Page 20: ...mmissioning 3 0000 Press the input knob 4 0123 Turn the input knob 5 show the code 6 SP 01 Press the input knob 7 The first SERVice parameter is Â displayed View SERVice parameters 3 2 2 SP 19 Turn the input knob 1 Select the SERVice parameter you 2 want 120 sec Press the input knob 3 The value of the parameter is shown Â SP 19 To leave the value unchanged 4 Press ESC to exit the display 5 ...

Page 21: ...ond side 3 two control valves at primary side for HK HK BW 4 two readjusted circuits 2 x HK at secondary side 5 two readjusted circuits 1 x HK 1 x BW at secondary side 6 two readjusted circuits 1 x HK 1 x BW with HK at secondary side 7 direct control of BW and HK one readjusted HK at secondary side 8 two control valves 1 x at primary side for HK 1 x for direct BW charging without mixing control 1 ...

Page 22: ...K2 8 Function aborted 9 Function successfully completed 0 7d 25 C 8 9 0 7d 25 C 8 9 SERVice Parameter Tab 1 An overview of the SERVice parameters and explanations for individual SERVice parameters is given in these sections List of SERVice parameters and Explanations for individual SERVice parameters 3 3 SERVice level In SERVice level a specialist can adapt the basic setting of the EQJW245 to the ...

Page 23: ...sitions see section 2 1 Back up mode Reduced mode Normal mode Automatic mode SE Set the upper rotary switch to the 1 Service position 0000 Press the input knob 2 0123 Turn the input knob 3 Show the code 4 SP 01 Press the input knob 5 The first SERVice parameter is Â displayed View SERVice parameters 3 3 2 SP 19 Turn the input knob 1 Select the SERVice parameter you 2 want 120 sec Press the input k...

Page 24: ... status error coding 0 to 9999 1 SP03 Display log book SP04 Software reset 0 no reset 1 SP CP parameters default 2 Switching commands default 3 SP CP parameters switching commands default 0 to 3 1 SP05 0 Manual mode 0 Manual mode not enabled 1 Manual mode enabled 0 to 1 1 SP06 1 Control models 1 one control valve at primary side with readjusted HK at secondary side 2 one control valve at primary s...

Page 25: ...run time in seconds 30 to 960 15 SP18 5 Minimum TF limit for heating 1 in C 5 to 100 1 SP19 75 Maximum TF limit for heating 1 in C 20 to 150 1 SP20 90 Upper limit min or max of TRF for HK1 2 in C 0 to 150 1 SP21 90 Lower limit min or max of TRF for HK1 2 in C 0 to 150 1 SP22 0 TA at which scheduled part of limiting function of TRF for HK1 2 used in C 49 to 49 1 SP23 1 0 Slope of limiting function ...

Page 26: ...e C 30 to 0 1 SP44 2 Heating medium pump follow up factor for HK1 follow up time min final control element run time x follow up factor 1 to 10 1 SP45 1 Frost protection function 0 not enabled 1 enabled 0 to 1 1 SP46 0 Configurable output 0 no operation 1 pilot timer function 2 2nd tank charge pump 3 forced operation of HK1 heating medium pump at slow speed in reduction or back up mode 4 forced ope...

Page 27: ...g return temperature 0 to 2 1 SP207 0 TRF2 correction in K 10 0 to 10 0 1 SP208 40 Proportional band PI actuator 2 control in K 2 to 1000 1 SP209 240 Reset time PI actuator 2 control in seconds 5 to 1000 1 SP210 180 Actuator 2 run time in seconds 30 to 960 15 SP211 5 Minimum TF limit for heating 2 in C 5 to 100 1 SP212 75 Maximum TF limit for heating 2 in C 20 to 150 1 SP213 5 Intervention level i...

Page 28: ...alue of the SERVice parameter must be changed and confirmed After this the EQJW245 performs the relevant reset and assigns value 0 to the parameter Manual mode SERVice parameter SP05 is used to disable or enable manual mode If the value of the parameter is 0 manual mode is disabled Control model Various control models are stored in the EQJW245 Use this parameter to specify the model that the EQJW2...

Page 29: ...0 I II V1 V2 MOD 2 Weather compensating control of the flow temperature secondary with drinking water control via a control valve in the secondary circuit B11111 I II V1 V2 MOD 3 Weather compensating control of the flow temperature secondary for up to two heating loops and drinking wa ter control via a separate charge pump B11112 I II V1 V2 MOD 4 Weather compensating control of the flow temperatur...

Page 30: ...nfluence the heating programme as long as the controller is in automatic mode If the contact is opened again the controller will operate according to the weekly calendar switching programme again and the following apply 1 HK in back up mode if contact is closed 2 HK in reduced mode if contact is closed 3 HK in nominal mode if contact is closed Alternatively the input can be used for quantity meter...

Page 31: ...ting capacity for the room are altered accordingly Connect room temperature heating 1 A room temperature sensor resistance sensor or device bus is required for this function The flow temperature setpoint is changed in divergence from the setpoint according to the heating characteristic if the room temperature in the reference room diverges from the room setpoint The change in flow temperature is l...

Page 32: ...ng to be used for heating 1 TRF1 a value of 0 must be assigned to this parameter If maximum return temperature limiting is to be carried out a value of 1 must be assigned to SP13 A value of 2 must be assigned to SP13 for maintaining the return temperature i e minimum return temperature limiting Correction to return temperature heating 1 The measured value for the return temperature is calibrated w...

Page 33: ...tion SP20 Upper value of maximum limit for primary return temperature TLO RF for hea ting SP21 Lower value of maximum limit for primary return temperature TLU RF for hea ting SP22 Outdoor temperature TA RF at which the sliding portion of the limiting function for the primary return temperature starts during heating SP23 Slope SL RF of the sliding portion of the limiting function for the primary re...

Page 34: ...Example 1 The flow volume should be limited to 1 6 m hour The flow sensor transmits a signal of 50 pulses litre The following conversion 1 6 m hour 1 600 litres hour and 1600 litres hour 26 67 litres minute and the flow sensor variable of 50 pulses litre give a limit value that must be entered on the EQJW245 SP26 SP27 or SP28 of 26 67 litres min x 50 pulses litre 1333 pulses min Example 2 The powe...

Page 35: ...ased again at 1 5 of the set intervention intensity The flow rate and heat quantity limitation affects both control circuits The level of intervention can be different for each control loop and specifies how strong the influence on the respective flow temperature is if the limit is exceeded Limit value for minimum flow or power This function is used to limit see page It prevents a constant low flo...

Page 36: ...nds This SERVice parameter specifies the amount by which the heating temperature should exceed the desired tank temperature Outside temperature limit for domestic water charging Depending on the outdoor temperature the EQJW245 determines whether heating of the domestic water tank is carried out as a priority i e the heating medium pump is switched off during heating or in parallel If the measured ...

Page 37: ...er determines the setpoint for the flow temperature in relation to a given outdoor temperature 2 0 1 8 1 6 1 4 1 2 1 0 0 8 0 6 0 4 2 5 3 0 3 5 4 0 20 15 10 5 0 5 10 15 C 100 90 80 70 60 50 40 30 10 5 5 C TI C Outside temperature Flow temperature Guideline for the slope of the heating characteristic Fig 6 1 4 for hot water radiator heaters 1 0 for low temperature heaters 0 6 for floor heaters Extra...

Page 38: ...If the current outdoor temperature is lower than the design temperature the EQJW245 heating controller no longer switches to reduced mode but remains in normal mode instead Heating 1 heating medium pump after run factor At the end of heating operation the heating medium pump is not shut off immediately but only after a delay that can be preset using SP44 With a valve running time of 120 sec see SP...

Page 39: ...ed as soon as heating 2 is in reduced or back up mode This signal can be connected to a pump speed regulator and therefore reduce the pump speed in reduction or back up mode 5 Collective alarm output If a fault is present error symbol is visible on the display the relay is switched on The fault may also have occurred on another controller and have been forwarded via the device bus also see section...

Page 40: ...itional time to warm up which would of course make sense without the optimisation function Optimisation provides energy optimised control by largely preventing unnecessarily high room temperatures outside of the usage times The function can be used only in conjunction with a room temperature sensor SP08 room temperature measurement must be switched on i e have a value of either 1 or 2 The optimisa...

Page 41: ...re laid Firstly a flow temperature of 25 C must be maintained over 3 days for this purpose After this the maximum flow temperature should be maintained for 4 more days i e a total of 7 days 7 d The controller then works in normal heating mode in accordance with the settings chosen 2 Ready for laying heating This involves starting with a flow temperature setpoint of 25 C The flow temperature setpoi...

Page 42: ...edure restarts automatically Function heating 2 Heating 2 is activated by setting SP200 1 This is also the factory setting Effect of binary input terminals 21 22 SP 201 can be used to determine whether and how the binary input affects heating 2 0 no effect on heating 2 1 heating 2 in back up mode if contact closed 2 heating 2 in reduced mode if contact closed 3 heating 2 in nominal mode if contact...

Page 43: ...ing unit this causes the actual value for the room temperature to change at the sensor input of the EQJW245 The flow temperature and therefore the heating output for the room are therefore adjusted Heating 2 room temperature activation A room temperature sensor resistance sensor or device bus is a prerequisite for this function Unlike the situation where the setpoint is in accordance with the heat...

Page 44: ...If maximum return temperature limiting is to be carried out a value of 1 must be assigned to SP206 A value of 2 must be assigned to SP206 for maintaining the return temperature i e minimum return temperature limiting Correction to return temperature for heating 2 The measured value for the return temperature is calibrated with the help of this SERVice parameter The value that was entered is added ...

Page 45: ...value drops below the quantity measurement limit again the flow temperature is increased again by 1 5 of the selected intervention level The limiting of the flow rate and the heat quantity affects both control circuits The intervention level can be set differently for each control circuit and specifies how great the influence on the respective flow temperature is if the limit is exceeded Heating 2...

Page 46: ...Screed curing for heating 2 This function is described in detail in the explanations for SP60 The value of SP212 is relevant to the maximum limiting of the flow temperature that is being controlled in this case 3 4 Communication level In the communication level a specialist can enable and configure the communication functions of the EQJW245 Incorrect parameterisation setting of the heating control...

Page 47: ...knob 7 The first communication parameter is Â shown Viewing the communication parameters 3 4 2 CP 03 Turn the input knob 1 Select the communication parameter 2 you want 19200 BAUD Press the input knob 3 The value for the parameter is Â shown CP 03 To leave the value unchanged press 4 ESC to exit from the display Changing communication parameters 3 4 3 Push the ESC key to cancel the procedure The v...

Page 48: ...e 9600 19200 CP04 Device bus address EQJW245 1 to 32 auto 1 CP05 MOD bus via RS485 address EQJW245 1 to 247 1 CP06 MOD bus via modem phone number of the control station 1 CP07 SMS via modem telephone number of the provider TAP protocol 1 CP08 SMS via modem telephone number of the mobile phone 1 CP09 0 Device bus time synchronisation 0 not enabled 1 enabled 0 to 1 1 CP10 0 Device bus send outdoor t...

Page 49: ...Italian 4 Spanish 0 to 4 1 CP26 0 MOD bus via modem disable dialling control station in case of fault 0 not enabled 1 enabled 0 to 1 1 CP27 0 MOD bus via RS485 or MOD bus via modem control station com mands expire after control station is inactive for 30 minutes 0 not enabled 1 enabled 0 to 1 1 CP201 0 Device bus transmit return temperature 2 0 not active 1 active 0 to 1 1 CP202 0 Device bus recei...

Page 50: ...tered here including the dialling code or for example a 0 for extension systems Short pauses between the digits can be entered with P 1 second and the end of the number ifs identified by The phone number can comprise a maximum of 22 digits including pauses When selecting the provider make sure that TAP Telocator Alphanumeric Protocol is used SMS via modem telephone number of the mobile phone The t...

Page 51: ... If CP 15 is set to 1 the controller receives the return temperature value from the device bus and uses it instead of its own measured value Device bus send error If CP 16 is set to 1 the controller sends its current error status on the device bus in the event of an error Device bus receive error If CP 17 is set to 1 the controller receives fault messages from other devices If configured to do so ...

Page 52: ...ake place if the fault has been rectified and the controller is operating without faults again SMS via modem language for error messages This parameter is used to select the language that is used to send an SMS The numbers have the following meanings 0 German 1 French 2 English 3 Italian 4 Spanish Modbus via modem disable fault dialling If CP26 is set to 1 there are no dialling attempts via modem ...

Page 53: ... that was received on the device bus Device bus digital room operating unit EDB100 for heating 2 If an EDB100 digital room operating unit is going to be used CP218 must be set to 1 If an EDB100 digital room operating unit is used the actual value is evaluated for the room temperature by the EDB100 Measurements from other room operating units or room sensors SP202 are ignored Device bus address of ...

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Page 55: ...ode day Setpoint adjustment reduced mode night Enter switching programme for heating Limited temperature change Commissioning level service level and communication parameters contains all the other parameters heating characteristic control parameters communication settings etc The bottom rotary switch allows you to set hot water preparation and the pilot timer The five left hand positions of the b...

Page 56: ...rminal 8 One off domestic water heating Displays when automatic mode is set 4 1 1 To show the various displays described below the bottom rotary switch must be moved to one of the following positions see section 4 1 Off mode Continuous heating to normal domestic water temperature Continuous heating to increased domestic water temperature Automatic mode The middle rotary switch must be in one of th...

Page 57: ...tdoor temperature that is Â currently measured 45 0 C Then you will see the domestic Â water setpoint if domestic water preparation has been configured 45 3 C The current measured domestic Â water temperature if domestic water preparation has been configured 14 22 Turn the knob further in a clockwise 4 direction to display the time again You can also turn the knob in the opposite direction to scro...

Page 58: ...ode Reduced mode Normal mode Automatic mode 14 22 After you select the switch position 1 for the top rotary switch the current time is shown The current operating status here sun for normal mode daytime operation and the current status of the outputs are shown on the lower margin of the display not illustrated here see 2 6 21 0 C Turn the input knob further 2 clockwise to show the room setpoint te...

Page 59: ...s more displays can be added to the display loop e g Show setpoint and actual value for return temperature The display see 7 can be added in case of a fault A display of the connection status can be added for modem operation see 6 4 Press the ESC button once to go directly to the time display Entering the setpoint temperature in normal mode 4 2 To enter setpoints the bottom rotary switch must be m...

Page 60: ...he input knob again to confirm 2 the changed numerical value Press the ESC button once before confirming to cancel the input The old value is retained Enter setpoint temperature in reduced mode 4 3 To enter setpoints the bottom rotary switch must be moved to one of the following positions see 4 1 Off mode Continuous heating to normal domestic water temperature Continuous heating to increased domes...

Page 61: ...modes which can be entered in a 10 minute grid The switching commands can be modified individually and they are captive A switching command may be valid every day 1 7 or on a specified day of the week Mon 1 Tue 2 etc If a switching command is present on a certain day of the week Mon Tue etc the daily switching command 1 7 is not valid on that day An empty switching programme is interpreted as a sw...

Page 62: ... 7 Turn the input knob 3 Select the day of the week 4 1 Monday 2 Tuesday 1 7 daily 5 5 Friday has been selected here 5 0000 Press the input knob 6 The first switching command for this Â day or for the whole week is shown View switching commands 4 4 2 07 00 Turn the input knob The individual switching commands Â are shown An empty switching command is shown as _ _ _ _ Enter a switching command 4 4 ...

Page 63: ... and deleting a switching command 4 4 4 Show the switching command as described in the Section on View switching commands e g 00 00 Press the input knob 1 The switching command is called up Â Turn the input knob 2 Choose whether you want to delete 3 the switching command Clr or change it SEt Press the input knob 4 Your selection is confirmed Â If the switching command was Â deleted the next switch...

Page 64: ...You are recommended to note any change to the calendar switching programme in the relevant table in section 15 5 No commands are entered in the calendar switching programme in the factory setting The calendar switching programme does not influence the switching programme for domestic water preparation or the switching programme for the configurable output Before you can call up view or edit the ca...

Page 65: ...u reach 1 the next empty switching command 01 01 Push the input knob 2 The new switching command is Â shown 01 05 Turn the input knob 3 The date for the switching command Â is changed 01 05 Push the input knob 4 The date for the switching command Â is confirmed 01 05 Turn the input knob 5 Select the mode for the switching 6 command 01 05 Push the input knob 7 The mode is confirmed Â Changing and d...

Page 66: ...on on Enter a switching command Temporary temperature change for the first heating circuit 4 6 Before a temporary temperature change for the first heating circuit can be implemented ensure that the bottom rotary switch is in one of these positions see 4 1 Off mode Continuous heating to normal domestic water temperature Continuous heating to increased domestic water temperature Automatic mode The m...

Page 67: ...he heating circuit is controlled as per automatic mode again Inputs for second heating circuit 4 7 The procedures described in chapters 4 2 to 4 4 also apply to the second heating circuit if present The middle rotary switch must be moved to the described position to do this The top rotary switch must be in one of the following positions Off mode Continuous heating to normal domestic water temperat...

Page 68: ...5 3 C Push the input knob and the 2 numerical value will flash 45 3 C and you can now change it by 3 turning it upwards or downwards step value 0 1 C 48 0 C Push the input knob again to confirm 4 the changed numerical value Press the ESC button once before confirming to cancel the input The old value is retained If the Adjust setpoint for boosted domestic water temperature thermal disinfection swi...

Page 69: ... Mon 1 Tue 2 etc If a switching command is present on a certain day of the week Mon Tue etc the daily switching command 1 7 is not valid on that day An empty switching programme is interpreted as a switching programme in normal mode There are three possible statuses for domestic water preparation Function Symbol No domestic water preparation STOP Normal domestic water temperature START Boosted dom...

Page 70: ...k is shown View switching commands 4 9 2 21 30 STOP Turn the input knob Turn the input knob The individual switching commands are shown An empty switching command is shown as _ _ _ _ Stop Enter a switching command 4 9 3 Turn the input knob until you reach 1 the next empty switching command 00 00 START Press the input knob 2 The new switching command is Â shown 08 00 START Turn the input knob 3 The...

Page 71: ...0 etc 6 Weekly switching programme for 4 10 pilot timer circulating pump The weekly switching programme is repeated every week It comprises up to 48 switching commands six for each day and a further six for the whole week with the associated operating modes which can be entered in a 10 minute raster The switching commands can be amended individually and are captive One switching command can be val...

Page 72: ...pilot timer or for activating a circulating pump see SP 49 The weekly switching programme can be viewed and edited regardless of how the output is configured Calling up the weekly switching programme 4 11 1 7 Set the bottom rotary switch to 7 PROG 5 Turn the input knob 8 Select day of the week 1 Monday 2 Tuesday 1 7 daily In this example 5 Friday was chosen 0000 Press the input knob 9 The first sw...

Page 73: ...in View switching command proceed as follows e g 00 00 Press the input knob 1 The switching command is called up Â Turn the input knob 2 Choose whether you want to delete 3 Clr or change SEt the switching command Press the input knob 4 Your selection is confirmed Â If the switching command was Â deleted the next switching command is shown 0000 If you wish to change the command 5 proceed as describ...

Page 74: ...n if the domestic water preparation is currently switched off by switching commands or if the tank temperature has not dropped far enough for regular tank heating to begin You must press the input knob to initiate tank heating which ends automatically after reaching the tank setpoint temperature After completing a once only tank charge the last mode set for domestic water control is valid again Pr...

Page 75: ...final control element open final control element closed etc are shown on the lower edge of the display as also happens in other cases see 2 Access to manual mode heating 5 1 POS Set the upper rotary switch to manual mode Access to manual mode heating circuit II 5 2 POS Set Move middle rotary switch to manual mode Access to manual mode domestic water configurable output and second final control 5 3...

Page 76: ...ut for manual mode 5 5 UP 1 Turn the input knob Select the output 1 you want UP 1 heating pump LP charge pump rEL configurable output 0 Press the input knob 2 Select the menu sub item 3 1 Turn the input knob 4 Specify pump output 0 pump off 5 1 pump on UP 1 Press the input knob 6 The preset is accepted Â 5 6 Exit manual mode You exit manual mode as soon as you turn the rotary switch to another pos...

Page 77: ...27 www sauter controls com Manual mode Turn the input knob 4 The individual values are shown Â The display loop corresponds to the Â automatic mode switch setting Press the ESC key 5 Exit from menu sub item INFO 6 ...

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Page 79: ...e device bus makes it possible to interconnect as many as 32 devices with little outlay It is primarily used to transmit measured temperature values outside temperature and room temperature a heat request and commands mode changeover Connecting the devices only requires two wires which are attached to the terminals regardless of polarity to terminals 18 and 19 on the EQJW245 Assigning addresses 6 ...

Page 80: ...1 and to receive one set parameter CP11 to 1 Requesting and processing a heat requirement 6 2 4 One or more controllers can be connected downstream in a controller grouping You can use parameter CP12 to send the required flow temperatures for the various downstream control circuits to the controller for the primary circuit If CP13 is set to 1 on the controller for the primary circuit these data wi...

Page 81: ...mprises 8 data bits no parity bits and one stop bit The following commands are supported Read Coil AA 01 XX XX 00 01 CC CC Coils Adr RC CoilNr Coils CRC Anzahl d zu lesenden Coils Antwort AA 01 01 YY CC CC Anz Adr RC Anz Dat CRC Anzahl der folgenden Datenbytes ___________________________________________________________________ Read Holding AA 03 XX XX 00 01 CC CC Reg Adr RH HR Nr Reg CRC Anzahl de...

Page 82: ...error correction functions digital telephone network Details about the protocol extension are available on request 6 3 1 Modbus data points holding register Number of holding register Description Comment Read only Decimal points Units With math Sign 40001 Product number Product number device code Yes 0 No 40003 Firmware version Firmware version Yes 2 No 40004 Hardware version Hardware version Yes ...

Page 83: ... No 1 No 41065 Kp_Rk1 Proportional band HK1 No 1 No 41066 Tn_Rk1 Integral action time HK1 No 0 sec No 41067 Ty_Rk1 Actuator run time HK1 No 0 sec No 41200 VorlSollw_Rk2 Flow setpoint HK2 No 1 C Yes 41201 MaxVorl_Rk2 Maximum flow temperature Rk2 No 1 C Yes 41202 MinVorl_Rk2 Minimum flow temperature Rk2 No 1 C Yes 41203 Tag_Soll_Rk2 Normal mode setpoint Rk2 No 1 C Yes 41204 Nacht_Soll_Rk2 Reduced mo...

Page 84: ...r the program for the pilot timer circulation pump the same logic applies but the register numbers are 100 higher in each case Every possible switching command has its own holding register a 16 bit value that can be read or written For the contents of the register the following applies Command Time Numeri cal value decimal 3 0 7 3 0 30730 1 Back up mode 2 Reduced mode 3 Normal mode To change the f...

Page 85: ... No GLT AUTONO MOUS 91 EBN BetrArt Rk2 Controller switches operating mode Rk2 HR40108 itself Yes No GLT AUTONO MOUS 92 EBN Stellsig Rk2 Controller controls actuation signal Rk2 HR40109 itself Yes No GLT AUTONO MOUS 96 EBN Binary term 6 Controller switches heating medium pump UP1 CL57 itself Yes No BMS AUTONO MOUS 97 EBN Binary term 10 Controller switches term 10 CL61 itself Yes No BMS AUTONO MOUS ...

Page 86: ...led on the telephone number entered at CP06 In the case of a modem connection before executing write commands via Modbus the valid code number 123 must be written to Modbus register 40145 Otherwise only read commands will be processed This is used to prove the legitimation of the control system If an incorrect code number is entered three times via Modbus this is recorded as a prohibited access at...

Page 87: ...n is being disconnected 0FF It was impossible to reach the provider or the control station with the permit ted number of dialling attempts new dialling attempts will be made on the next day Display for modem operation Tab 9 Communication with device in as delivered condition 6 5 The factory setting is MODBUS communication via RS485 CP02 2 However the device does not have any valid Modbus address i...

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Page 89: ... Sensor failure terminal 23 TF1 Err 2 Sensor failure terminal 25 TF2 Err 3 Sensor failure terminal 26 TA Err 4 Sensor failure terminal 28 TR1 TWF2 Err 5 Sensor failure terminal 29 TW1 Err 6 Sensor failure terminal 31 TW2 TR2 Err 7 Sensor failure terminal 32 TRF1 Err 8 Sensor failure terminal 34 TRF2 Error list Tab 10 7 1 2 Device status The device status register contains the information on faults...

Page 90: ...splayed first You can switch to the years in which at least one entry was made by rotating the rotary knob Pressing the rotary knob takes you to the next level in which the days DD MM of the relevant year on which an entry took place are displayed You can select a day by pressing the rotary knob and show the times HH MM at which entries were made on the relevant day Press the knob to view the devi...

Page 91: ...akes place at the maximum flow temperature If the flow temperature sensor is faulty the valve assumes a valve position of 30 If the return temperature sensor is faulty the controller operates as if no return temperature sensor were present If the room sensor fails the flow temperature setpoint is no longer adjusted in accordance with the room temperature If the domestic water sensor is faulty no m...

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Page 93: ...knob makes it easy to change the device s settings This application requires an additional safety thermostat Before the installation is commissioned the slope of the characteristic and the flow temperature limit must always be checked Depending on the application the following settings are recommended characteristic slope SERVice Parameter SP41 Value 1 4 flow temperature limit SERVice Parameter SP...

Page 94: ...heat quantity metering active SP26 700 Limit for maximum output that may be removed form the heating circuit and the domestic water control SP27 700 Limit for maximum output that may be removed form the heating circuits SP28 700 Limit for maximum output that may be removed in the event of domestic water charging SP29 5 Intervention level if the limit for the maximum amount of output that can be re...

Page 95: ...hapter 3 3 4 SP06 2 Control model 2 SP07 1 HK1 in backup mode if binary contact closed SP08 2 Room sensor connection with setpoint adjuster for HK 1 SP09 3 Room temperature activation active for HK2 SP13 1 Max return temperature limit for HK1 SP20 40 Upper return temperature limit for HK1 2 SP21 40 Lower return temperature limit for HK1 2 SP46 5 Alarm forwarding SP200 1 2nd heating circuit enabled...

Page 96: ... charging system activation in accordance with AGFW regulation Fig 3 3 2 4 Important SERVice parameters see also chapter 3 3 4 SP06 3 Control model SP08 4 Use of 2nd flow sensor for the domestic water SP13 1 Max return temperature limit for HK1 SP20 40 Upper return temperature limit for HK1 SP21 40 Lower return temperature limit for HK1 SP31 2 Domestic water preparation with 2 domestic water senso...

Page 97: ...ration connection Important SERVice parameters see also chapter 3 3 4 SP06 4 Control model SP08 1 Connection of a room sensor for HK1 SP09 3 Room temperature activation always active for HK1 SP31 1 domestic water preparation with 1 domestic water sensor SP33 5 Switching difference for domestic water preparation SP46 6 Configurable output used to actuate a circulation pump SP200 1 2nd heating circu...

Page 98: ...arate mixing valves Important SERVice parameters see also chapter 3 3 4 SP06 5 Control model SP07 1 HK1 in backup mode if binary contact closed SP08 1 Connection of a room sensor for HK1 SP09 3 Room temperature activation always active for HK1 SP31 2 Domestic water preparation with 2 domestic water sensors SP33 5 Switching difference for domestic water preparation SP46 6 Configurable output used t...

Page 99: ...with additional domestic water preparation Important SERVice parameters see also chapter 3 3 4 SP06 6 Control model SP08 2 Room sensor connection with setpoint adjuster for HK1 SP09 3 Room temperature activation always active for HK1 SP31 1 Domestic water preparation with 1 domestic water sensors SP36 30 Domestic water preparation with priority over HK2 SP200 1 2nd heating circuit enabled SP202 2 ...

Page 100: ...reparation Important SERVice parameters see also chapter 3 3 4 SP06 7 Control model SP08 2 Room sensor connection with setpoint adjuster for HK 1 SP09 3 Room temperature activation always active for HK1 SP31 2 Domestic water preparation with 2 domestic water sensors SP46 6 Configurable output used to actuate a circulation pump SP200 1 2nd heating circuit enabled SP202 2 Room sensor connection with...

Page 101: ...ixing control tank charging system switching in accordance with AGFW regulation Fig 3 3 2 3 Important SERVice parameters see also chapter 3 3 4 SP06 8 Control model SP08 4 Use of 2nd flow sensor for the domestic water SP13 1 Max return temperature limit for HK1 SP20 40 Upper return temperature limit for HK1 SP21 40 Lower return temperature limit for HK1 SP31 2 Domestic water preparation with 2 dom...

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Page 103: ... 5 Hot water 11 6 Heating 78 Better insulation could save almost half of the heating energy Savings are also possible thanks to modern heating installations with intelligent control A reduction of 3 C at night with the heating controller saves about 5 to 8 of the heating energy A constant bedroom temperature of 18 C with a reduced night time temperature in the living rooms saves about 12 to 15 A c...

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Page 105: ...el measuring resistor changes in relation to the temperature The temperature coefficient is always positive i e the resistance increases as the temperature rises See the table of values DIN 43760 Within the specified tolerances the sensors can be exchanged without calibration Temperature C Resistance value Ω Ni1000 90 1549 80 1483 70 1417 60 1353 50 1291 40 1230 30 1171 20 1112 10 1056 0 1000 10 9...

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Page 107: ...EQJW245 107 127 www sauter controls com Accessories 11 Accessories See the Sauter PDS for more components www sauter controls com ...

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Page 109: ... T R2 Ni1000 Ni1000 21 21 Modem DGND DVCC DATA2 DATA1 20 19 18 BUS B A 18 19 DGND SP46 T W1 WF2T 21 22 Ni1000 Ni1000 T F2 Ni1000 Ni1000 T W2 Ni1000 Ni1000 34 T RF2 6 7 M2 1 2 27 28 3 4 27 28 0 4 EGT 333 EGS 52 15 27 28 0 1 27 28 3 2 EGT 333 EGS 52 15 T R1 T R1 30 31 3 4 30 31 0 4 EGT 333 EGS 52 15 30 31 0 1 30 31 3 2 EGT 333 EGS 52 15 T R2 T R2 A10486 Wiring diagram Fig 18 ...

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Page 111: ...EQJW245 111 127 www sauter controls com Dimension drawing 13 Dimension drawing M10473 146 98 81 93 5 140 92 138 1 0 0 5 0 138 92 DIN 43700 Dimension drawing of EQJW245 Fig 19 ...

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Page 113: ... programme Min 24 hours after supply was con nected for min 4 hours parameters switching commands are stored perma nently Better than 1sec day 10 min 6 day or 42 week 1 day 20 Inputs 6 temperature sensors 2 temperature sensor or remote control unit 1 binary input pulse input Outputs relay output for pumps pilot timer relay outputs for final control element 8 relays normally open contact 230V 2A co...

Page 114: ...r temperature is higher than 4 C When the anti frost function cuts in a flow temperature of 10 C is controlled for the heating circuits If the domestic water temperature 5 C heating to 10 C takes place The pump anti jamming facility function is enabled in SERVice level At 00 00 hours every day a pump is switched on for 60 seconds if it was not operated during the preceding 24 hours This function i...

Page 115: ... primary side closes and does not open again until the setpoint for TF is 5K higher than the actual value The relays for the various outputs can be activated separately in manual mode The setting for this is menu guided if manual mode has been enabled which is done at SERVice level The factory setting for manual mode is not enabled Safety functions are not in operation in manual mode and limits do...

Page 116: ...the calendar switching programme are retained The outside temperature is recorded by an EQJW245 and is made available to the remaining controllers as a measured value via the device bus Parameterisation for this purpose is performed in communication level Communication with the EQJW245 can take place via the RS 485 interface with the aid of the Modbus RTU protocol Data can be exchanged The EQJW245...

Page 117: ... 0 0 SP05 0 SP40 10 SP06 1 SP41 15 SP07 0 SP42 21 SP08 0 SP43 16 SP09 0 SP44 2 SP10 20 SP45 1 SP11 0 SP46 0 SP12 0 SP47 0 SP13 0 SP48 25 10 SP14 0 SP49 25 03 SP15 40 SP50 0 SP16 240 SP60 0 SP17 120 SP200 1 SP18 5 SP201 0 SP19 75 SP202 0 SP20 90 SP203 0 SP21 90 SP204 20 SP22 0 SP205 0 SP23 1 0 SP206 0 SP24 90 SP207 0 SP25 5 SP208 40 SP26 no SP209 240 SP27 no SP210 180 SP28 no SP211 5 SP29 0 SP212 7...

Page 118: ...ching programme heating 1 15 3 Day Time Mode Deleted Daily 06 00 Normal mode Daily 22 00 Reduced Mode Switching commands added for the weekly switching programme Day Time Mode ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ___...

Page 119: ...______ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ Calendar switching programme heating 1 and heating 2 15 5 Switching commands added for the calendar switching programme Day Month Mode ____________ ____________ ____________ ____________ ____________ ____________ ____________ ___________...

Page 120: ...______ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ ____________ Weekly switching programme pilot timer circulating pump 15 7 Day Time Mode Deleted Daily 06 00 Normal mode Daily 22 00 Reduced Mode Switching commands added for the weekly switching programme Day Time Mode ____________ ____________ ____________ ____________ _____...

Page 121: ...e 33 Fig 8 Guideline for the slope of the heating characteristic 37 Fig 9 Guideline for the slope of the heating characteristic 45 Fig 10 Modbus communication commandos 81 Fig 11 EQJW245 MOD 1 94 Fig 12 EQJW245 MOD 2 95 Fig 13 EQJW245 MOD 3 96 Fig 14 EQJW245 MOD 4 97 Fig 15 EQJW245 MOD 5 98 Fig 16 EQJW245 MOD 6 99 Fig 17 EQJW245 MOD 7 100 Fig 18 EQJW245 MOD 8 101 Fig 19 Proportion of energy consum...

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Page 123: ...Tab 4 Communication parameters 49 Tab 5 Statuses for domestic water 69 Tab 6 Modbus data points 83 Tab 7 Switching commands 84 Tab 8 Modbus Datenpunkte 85 Tab 9 Display for modem operation 87 Tab 10 Error list 89 Tab 11 Resistance value Ni1000 105 Tab 12 Overview of technical data 114 Tab 13 List of SERVice parameters 117 Tab 14 List of communication parameters 118 ...

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Page 125: ...lating pump 71 commands 81 Commissioning 17 Commissioning level 19 Communication functions 79 Communication level 46 communication parameters 48 controller 93 controller settings 117 Control model 28 94 control models 28 D date 18 Design temperature 38 Device bus 79 Device bus address 50 Device status 89 Dimension drawing 111 Display 15 domestic water 35 domestic water temperatures 68 E Error list...

Page 126: ...put 114 N Ni1000 105 O Operation 55 Outside temperature 36 P pilot timer 71 Power supply tolerance 113 Proportional band PI contro 32 Protection class 113 Pump anti jamming facility 114 R Reset functions 91 Room temperature connection 114 Room temperature recording 31 Rotary switches 13 S Safety 11 Screed curing 115 sensor failure 89 SERVice level 22 SERVice parameters 21 Slope 37 SMS 50 Software ...

Page 127: ...5 Fax 41 61 695 55 10 www sauter controls com info sauter controls com Printed in Switzerland EQJW245 7010042003 A www sauter controls com Index T Technical data 113 time 17 V valve position 76 W Weekly switching programme 61 winter summer 40 Wiring diagram 109 ...

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