Climatix SNVTs for Twin Wheel application v1.x
Table of contents 1 About this document...3 1.1 Revision history...3 1.2 Before you start...3 1.3 Reference documents...3 2 Application...4 2.1 General information...4 3 Network variables...5 3.1 Overview...5 3.2 General...6 3.3 Mandatory variables...7 3.4 Optional input variables...8 3.5 Optional output variables...11 3.6 Configuration parameters...25 4 Appendix...26 4.1 Description of SNVTs...26 2
1 About this document 1.1 Revision history Version Date Changes Section Pages 26.01.2011 First edition 1.2 Before you start Validity This document applies to the following product: Name Type (ASN) Version Fläkt Woods Twin Wheel application POL63x.00/AHU 1.x LON image POLXXX_Std_AHU_V100 (ClimatixAHU) 1.00 This document is a supplement to the general integration guide: "" *) *) POL906.00: Climatix LON communication module That document must be read first and all general information such as document conventions, important information on safety, trademarks, copyright etc. are valid for this document as well. This document only contains the uniqe information for the product mentioned above. All general engineering information such as mounting modules, communication settings etc. are described in the integration guide. Prerequisite User has read the general LON integration guide for Climatix, CB1J3964en. 1.3 Reference documents Further information The following documents contain additional information on the products described in this manual: Document Order no. Data sheet "Communication module LON" CB1Q3931en Integration Guide "" 8971GB 3
2 Application 2.1 General information Twin Wheel application v1.x Standard application for Twin Wheel v1.x is available at this time. The following diagram provides an overview: Detailed information Contact FW support for a detailed description of standard application Twin Wheel v1.x. Network variables The set of loadable files mentioned above also includes a mapping file for integration in a higher building automation and control system via communications module. The Climatix controller automatically assumes the network variables required for integration as per the plant data points and functions configured and parameterized previously. The following tables list all network variables as per the overview in Section 3.1. 4
3 Network variables 3.1 Overview Contents of LON image set AHU V1.x The LON module's Neuron application supports 62 network variables to integrate controllers with air handling applications in a management station, and allow controllers to exchange data over LON. The figure shows the variables for LON image set (XIF) POLXXX_Std_AHU_V100 (ClimatixAHU V1.x) and their SNVTs, grouped as follows: Mandatory network variables (A) Optional network variables (B) Configuration parameters (C) nvirequest SNVT_obj_request A nvostatus SNVT_obj_status P3931Z10 nvitemps SNVT_temp_setpt B nvotemps SNVT_temp_setpt nvotemp01 nvotemp02 nvitemp01 nvotemp03 nvotemp04 nvotemp05 nvitemp02 nvotemp06 nvotemp07 nvotemp08 nvihum00 SNVT_abs_humid nvohum00 SNVT_abs_humid nvohum01 SNVT_abs_humid nvihum01 SNVT_abs_humid nvoflow00 SNVT_flow nvoflow01 SNVT_flow nvippm00 SNVT_count nvoppm00 SNVT_count nvipress_flow00 SNVT_count nvopress00 SNVT_press_p nvopress01 SNVT_press_p nvopress02 SNVT_press_p nvipress_flow01 SNVT_count nvipress_flow02 SNVT_count nvipress_flow03 SNVT_count Neuron Application AHU V1.x nvopress_flow00 SNVT_count nvoperc00 nvoperc03 nvopress_flow01 SNVT_count nvoperc01 nvoperc04 nvoperc02 nvoperc05 nvipress_flow04 SNVT_count nvoperc06 nvoperc07 nvoperc08 nvipress_flow05 SNVT_count nvoperc09 nvoperc10 nvoperc11 nviresetalarm SNVT_switch nvoperc12 nvoperc13 nvoperc14 nviopmode SNVT_switch nvoopmode SNVT_switch nvicontrol SNVT_state nvoswitch00 SNVT_switch nviacttime SNVT_time_stamp nvostate SNVT_state_64 nvodo SNVT_state_64 nvodi SNVT_state_64 nvoalarm SNVT_state_64 ncimaxsndtime SNVT_time:sec C ncimaxrcvtime SNVT_time_sec ncistartupdelay SNVT_time_sec The sections below describe the network variables. 5
3.2 General Purpose SNVT handling The following sections describe the network variables used in the specific application and LON image (XIF), see Section 1.2 "Before you start". Pay attention to the following explanations concerning some specific characteristics of SNVTs and elements used: SNVT / Element Explanation Heartbeat All output (nvo) SNVTs send heartbeat. No SNVTs requires heartbeat from the network. All input (nvi) SNVTs write back changed values, from the controller, to the Neuron, means that a setpoint could be set from both the controller and the network, depending on BMS system. Min Send time Some output (nvo) SNVTs use the "Min send time". Means that this SNVT have fastest send interval of x seconds. SNVT_state Climatix are using SNVT_state binary counted from left to right and due to that some LON devices counts from right. In this case it is necessary to invert the bits, Bit0=Bit15, Bit1=Bit14... SNVT_switch The state part for SNVT_switch must be set to 1 (Active) to use the value part. SNVT_temp_setpt The SNVT_temp_setpt is used for different temperature set points and to show the actual set points, and it could be different set points than named within the SNVT due to these names are fixed. Example is the first value "occupied cool" used for Basic heating set point instead. See further in this document. Override I/Os Inputs that are possible to override via LON is marked with (I/O), theese must first be setup to be overridden via communication, see Integration guide. SNVT info The following tables briefly describe each variable used and it's SNVT. Thereby the "NV index" presents the network variable number in the XIF file (LON image). Refer to 4.1 "Description of SNVTs" for more information on the SNVTs. 6
3.3 Mandatory variables Introduction Input variable nvirequest Two of the network variables supported by the LON module's Neuron application are mandatory. They are needed for system purposes: The two variables are: nvirequest nvostatus Requires a particular mode for a specific object in a device. Network Name: nvirequest Object request SNVT_obj_request NV index: 0 Output variable nvostatus Signals the status of the requested object in the device. Network Name: nvostatus Object status SNVT_obj_status NV index: 1 7
3.4 Optional input variables Introduction The LON module's Neuron application supports 62 network variables. 56 of these are optional. The following tables briefly describe each variable and its SNVT. The network variable tables are listed by: Input variables (23) Output variables (33) Input variables nvitemps Inputs variables sorted according to the overview of Section 3.1: Network Name: nvitemps Names in SNVT NV index: 14 Setpoint heating Deadzone cooling SNVT_temp_setpt Structured setpoint variable for 2 temperature setpoints. occupied_cool standby_cool unoccupied_cool occupied_heat standby_heat unoccupied_heat nvitemp01 Network Name: nvitemp01 Supply air temperature NV index: 15 nvitemp02 Network Name: nvitemp02 Outside air temperature NV index: 16 (I/O) nvihum01 Network Name: nvihum01 Setpoint Dehumidity Abs or Rel SNVT_abs_humid NV index: 9 Setpoint for absolute and relative dehumidity. Different setpoint combinations are used depending on configuration. 8
Optional input variables, continued nviresetalarm Network Name: nviresetalarm Reset/Acknowledge alarms SNVT_switch NV index: 11 Values: 0 Normal 1 ResetA/Acknowledge > 1 Not defined State: 0: Inactive 1: Active Default: Value: 0 State : 0 State part must be set to 1 to use the value part. nviopmode Network Name: nviopmode BMS control/overide time switch program SNVT_switch NV index: 12 Values: 0 Auto, internal time scheduler Steps 1 Stop mode 2 On 3 Not defined 4 Not defined > 4 Not defined State 0: Inactive 1: Active Default: Value: 0 State : 0 State part must be set to 1 to use the value part. 9
Optional input variables, continued nvicontrol Network Name: nvicontrol Control signals SNVT_state (16 bit) NV index: 13 Bits: Bit [0...15] Emergency stop input (I/O) External control input 1 (I/O) Summer/winter changeover switch (I/O) Fire alarm input (I/O) Communicationtest puls Binary: * Reverse: 0 15 1 14 2 13 3 12 4 11 5 10 6 9 7 8 8 7 9 6 10 5 11 4 12 3 13 2 14 1 15 0 * On some LON tools the bits are named in the other direction, so take care nviacttime Network Name: nviacttime System clock SNVT_time_stamp NV index: 57 10
3.5 Optional output variables Output variables Output variables sorted according to the overview on Section 3.1: nvotemps Network Name: nvotemps Names in SNVT Actual heating setpoint, Main Actual cooling setpoint, Main External setpoint SNVT_temp_setpt NV index: 40 Structured setpoint variable for 3 setpoints. Actual setpoints are depending on actual controlmode. occupied_cool standby_cool unoccupied_cool occupied_heat (Uses Min Send time) standby_heat (Uses Min Send time) unoccupied_heat (COV 1.0) nvotemp01 Network Name: nvotemp01 Supply air temperature NV index: 41 nvotemp03 Network Name: nvotemp03 Outside air temperature NV index: 43 Uses Min Send time nvotemp05 Network Name: nvotemp05 Exhaust air temperature (Return air) NV index: 45 11
Optional output variables, continued nvotemp07 Network Name: nvotemp07 Supply air Cooling temperature NV index: 47 12
Optional output variables, continued nvoperc01 Network Name: nvoperc01 Cooling output signal NV index: 25 COV 1.0 nvoperc02 Network Name: nvoperc02 Heat recovery 1 output signal NV index: 26 COV 1.0 13
Optional output variables, continued nvoperc03 Network Name: nvoperc03 Heat recovery 2 output signal NV index: 27 COV 1.0 nvoperc04 Network Name: nvoperc04 Heat recovery efficiency NV index: 28 COV 1.0 nvoperc08 Network Name: nvoperc08 Extra Heating output signal Extra heating NV index: 32 COV 1.0 nvoperc09 Network Name: nvoperc09 Supply air humidity, relative NV index: 33 COV 1.0 14
Optional output variables, continued nvoperc10 Network Name: nvoperc10 Exhaust air humidity, relative Return air NV index: 34 COV 1.0 nvoperc11 Network Name: nvoperc11 Outside air humidity, relative NV index: 35 COV 1.0 nvoperc13 Network Name: nvoperc13 Actual dehumidity value NV index: 37 COV 1.0 nvohum00 Network Name: nvohum00 Supply air humidity, absolute SNVT_abs_humid NV index: 51 COV 1.0 nvohum01 Network Name: nvohum01 Exhaust air humidity, absolute Return air SNVT_abs_humid NV index: 52 COV 1.0 15
Optional output variables, continued nvoopmode Network Name: nvoopmode Actual operating mode SNVT_switch NV index: 50 Values: 0 Off 1 Winter 2 Summer 3 Not used 4 Stop > 4 Not defined State: 0 :Inactive :Value = 0 1 :Active :Value > 0 Default: Value : 0 State : 0 16
Optional output variables, continued nvostate Network Name: nvostate General status SNVT_state_64 (64 bit) NV index: 55 Bits Bit [0 63] Alarm class danger (A) Alarm class critical (A) Alarm class low (B) Alarm class warning (C) Manual control active Summer mode Communicationtest puls Actual control mode temp, room Actual control mode temp, exh Actual control mode temp, sply Binary: * Reverse: 0 63 1 62 2 61 3 60 4 59 5 58 6 57 7 56 8 55 9 54 10 53 11 52 12 51 13 50 14 49 15 48 16 47 17 46 18 45 19 44 20 43 21 42 22 41 23 40 24 39 25 38 26 37 27 36 28 35 29 34 30 33 31 32 32 31 33 30 34 29 35 28 36 27 37 26 38 25 39 24 40 23 * On some LON tools the bits are named in the other direction, so take care 17
Optional output variables, continued nvostate, cont. Network Name: nvostate Bit array for general status SNVT_state_64 (64 bit) NV index: 55 Bits Bit [0 63] Binary: * Reverse: 41 22 42 21 43 20 44 19 45 18 46 17 47 16 48 15 49 14 50 13 51 12 52 11 53 10 54 9 55 8 56 7 57 6 58 5 59 4 60 3 61 2 62 1 63 0 * On some LON tools the bits are named in the other direction, so take care 18
Optional output variables, continued nvodo Network Name: nvodo All digital outputs SNVT_state_64 (64 bit) NV index: 54 Bits: Bit [0 63] Cooling pump Heat recovery pump 1 Heat recovery pump 2 Extra heating demand Binary: * Reverse: 0 63 1 62 2 61 3 60 4 59 5 58 6 57 7 56 8 55 9 54 10 53 11 52 12 51 13 50 14 49 15 48 16 47 17 46 18 45 19 44 20 43 21 42 22 41 23 40 24 39 25 38 26 37 27 36 28 35 29 34 30 33 31 32 32 31 33 30 34 29 35 28 36 27 37 26 38 25 39 24 40 23 * On some LON tools the bits are named in the other direction, so take care 19
Optional output variables, continued nvodo, cont. Network Name: nvodo All digital outputs SNVT_state_64 (64 bit) NV index: 54 Bits: Bit [0 63] Aux operation mode indication Alarm output, high Alarm output, low Binary: * Reverse: 41 22 42 21 43 20 44 19 45 18 46 17 47 16 48 15 49 14 50 13 51 12 52 11 53 10 54 9 55 8 56 7 57 6 58 5 59 4 60 3 61 2 62 1 63 0 * On some LON tools the bits are named in the other direction, so take care 20
Optional output variables, continued nvodi Network Name: nvodi All digital inputs SNVT_state_64 (64 bit) NV index: 53 Bits: Bit [0 63] Emergency stop External control 1 Summer/winter changeover Alarm acknowledge Aux input Extra Heating demand feedback Binary: * Reverse: 0 63 1 62 2 61 3 60 4 59 5 58 6 57 7 56 8 55 9 54 10 53 11 52 12 51 13 50 14 49 15 48 16 47 17 46 18 45 19 44 20 43 21 42 22 41 23 40 24 39 25 38 26 37 27 36 28 35 29 34 30 33 31 32 32 31 33 30 34 29 35 28 36 27 37 26 38 25 39 24 40 23 * On some LON tools the bits are named in the other direction, so take care 21
Optional output variables, continued nvodi, cont. Network Name: nvodi All digital inputs SNVT_state_64 (64 bit) NV index: 53 Bits: Bit [0 63] Binary: * Reverse: 41 22 42 21 43 20 44 19 45 18 46 17 47 16 48 15 49 14 50 13 51 12 52 11 53 10 54 9 55 8 56 7 57 6 58 5 59 4 60 3 61 2 62 1 63 0 * On some LON tools the bits are named in the other direction, so take care 22
Optional output variables, continued nvoalarm Network Name: nvoalarm All alarms SNVT_state_64 (64 bit) NV index: 56 Bits: Bit [0 63] Cooling, Cooling pump Heating recovery 1 in alarm Heating recovery 1 or 2 Heating recovery 2 in alarm Heating recovery efficiency Extra heating demand alarm Out temperature Supply temperature Return air temperature Supply temperature after Cooling Binary: * Reverse: 0 63 1 62 2 61 3 60 4 59 5 58 6 57 7 56 8 55 9 54 10 53 11 52 12 51 13 50 14 49 15 48 16 47 17 46 18 45 19 44 20 43 21 42 22 41 23 40 24 39 25 38 26 37 27 36 28 35 29 34 30 33 31 32 32 31 33 30 34 29 35 28 36 27 37 26 38 25 39 24 40 23 * On some LON tools the bits are named in the other direction, so take care 23
Optional output variables, continued nvoalarm, cont. Network Name: nvoalarm All alarms SNVT_state_64 (64 bit) NV index: 56 Bits: Bit [0 63] Auxiliary temperature Supply temperature deviation Outside humidity Supply humidity and deviation Return air humidity External set point Auxiliary alarm Manual control Communication test Modbus master Binary: * Reverse: 41 22 42 21 43 20 44 19 45 18 46 17 47 16 48 15 49 14 50 13 51 12 52 11 53 10 54 9 55 8 56 7 57 6 58 5 59 4 60 3 61 2 62 1 63 0 * On some LON tools the bits are named in the other direction, so take care 24
3.6 Configuration parameters Introduction The LON module's Neuron application supports 62 network variables. 4 3 of these must be used as configuration parameters as described below. ncimaxsndtime Network Name: ncimaxsndtime Send heartbeat Max. time an output variable has to be sent even if there hasn't changed anything. SNVT_time_sec NV index: 58 ncimaxrcvtime Network Name: ncimaxrcvtime Receive heartbeat Max. time an input variable has to be received. If it wasn't received during this time the value of this input variable is invalid. SNVT_time_sec NV index: 59 ncistartupdelay Network Name: ncistartupdelay SNVT_time_sec NV index: 60 25
4 Appendix 4.1 Description of SNVTs You can find current descriptions of SNVTs (Standard Network Variable Types) used in set ClimatixAHU V1.x per Section 2.1, on the homepage of "LonMark International" at: http://types.lonmark.org/index.html "LONMARK Resource Files, version XX.XX" 26
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