background image

 

SKG Steam Humidifier 

BACnet® Communication Module User Guide

 

 

Device Object 

The following table lists all the BACnet properties supported for the device object. 

W?

 indicates if the property is 

writable using the BACnet WriteProperty service. 

Device 

 
property 

value 

  W? 

Object_Identifier 

programmable where the instance part of the 
Object_Identifier is in the range of 0-4194302

. The 

device instance must be unique system-wide. The 
default  value for the device instance=153000 
(Vendor_Identifier*1000) 

Object_Name 

programmable up to 32 characters

. The device 

name must be unique system-wide. The default 
value= "NEPSKGHumidifier153000" where 153000 
is the Vendor_Identifier*1000 

Object_Type 8 

 

System_Status 

always operational 

 

Vendor_Identifier always 

153 

 

Vendor_Name 

always “National Environmental Products Ltd 

 

Model_Name 

“SKG3” for example 

 

Status_Flags If 

the 

fault

 bit is set, it indicates that the 

Present_Value is unavailable and is unreliable 

 

Firmware_Revision currently 

“1.00” 

 

Application_Software_Version currently 

“1.00” 

 

Protocol_Version always 

 

Protocol_Revision always 

 

Max_APDU_Length_Accepted always 

107 

 

Segmentation_Supported always 

none 

 

APDU_Timeout always 

 

Number_of_APDU_Retries always 

 

Protocol_Services_Supported always 

0x00 0x09 0x40 0x00 0xE0 (i.e. a bitstring 

in BACnet order 

 

Protocol_Object_Types_Supported always 

0xB4 0x84 0x10 0x00 (i.e. a bitstring in 

BACnet order 

 

Object_List 

per the standard. Because of restrictions on the 
size of the transmit buffers, the entire Object_List 
cannot be returned at once, rather the Object_List 
must be read, one-at-a-time 

 

Local_Time per 

the standard

, if the unit supports a RTC 

 

Local_Date per 

the standard

, if the unit supports a RTC 

 

Device_Address_Binding always 

empty 

 

Max_Master 

programmable in the range of 0-127

. Default 

value=127 

Max_Info_Frames always 

 

Proprietary property #1000 

programmable

. This proprietary property 

represents the MS/TP MAC address in the range 
of (0-254). Values 128 to 254 represent MS/TP 
non-token-passing slave devices. Default value=0 

 

Summary of Contents for SKG Series

Page 1: ...Gas Fired Humidifier SKG Series BACnet Communication Module User Guide SKG BACNET Rev 060803...

Page 2: ......

Page 3: ...t 1 Introduction BACnet Requirements 2 Introduction 2 BACnet Requirements 2 Device Object 3 Objects 4 SKG Humidifier Object Table 8 Configuration 19 Personal notes 23 Other related documents 1 Install...

Page 4: ...hrough WriteProperty service to the device object A default MAC address of 254 shall be recognized when a configuration dip switch is set to configure mode Two other dip switches shall determine MS TP...

Page 5: ...s unavailable and is unreliable Firmware_Revision currently 1 00 Application_Software_Version currently 1 00 Protocol_Version always 1 Protocol_Revision always 2 Max_APDU_Length_Accepted always 107 Se...

Page 6: ...puts AI Analog Values AV 6 Binary Inputs BI 16 Binary Values BV 1 Multistate Input MSI So the number of objects vs the number of Tanks are listed in the following table Number of Tanks Number of Objec...

Page 7: ...is set this property s value is unreliable_other otherwise it s no_fault_detected Out_of_Service Always false Units see Object Table Analog Values property value W Object_Identifier see Object Table...

Page 8: ...no_fault_detected Out_of_Service Always normal Polarity see Object Table Active_Text see Object Table Inactive_Text see Object Table Binary Values property value W Object_Identifier see Object Table...

Page 9: ...property s value is unreliable_other otherwise it s no_fault_detected Out_of_Service Always normal Number_of_States see Object Table Multistate Values property value W Object_Identifier see Object Ta...

Page 10: ...dity_Off Room Humidity offset 0 10 0 RH W AV 4 Duct_Humidity Duct Humidity 0 100 RH W AV 5 Duct_Humidity_Off Duct Humidity offset 0 10 0 RH W AV 6 Outside_Temp Outside Temperature 40 40 C or 40 104 F...

Page 11: ...VDC 0 OFF 1 ON Alarm main board BI 12 Interlock_In_Open Interlock input open 0 Normal 1 Alarm BI 13 High_Hum_In_Duct High humidity level in the duct 0 Normal 1 Alarm BI 14 Input_Voltage_Low Input volt...

Page 12: ...ion_Mode Operation Mode 1 Set unit Off 2 Set unit On 3 Set unit in drain mode W MSV 3 Unit_Display_Lang Unit Display Language 1 English Default 2 French 3 Spanish W MSV 4 SP_Source Setpoint Source 1 L...

Page 13: ...range of Present_Value W Alarm 1 BV 101 OverTemp_Cont_ON1 Over temperature contact ON 1 0 Normal 1 Alarm W BV 102 Bad_Fill_Tank1 Defective filling tank 1 0 Normal 1 Alarm W BV 103 Bad_Refill_Tank1 Def...

Page 14: ...1 Burner Valve 1 0 OFF 1 ON BI 102 Burner_Fan1 Burner Fan 1 0 OFF 1 ON BI 103 Fill_Tank1 Fill Tank 1 0 OFF 1 ON BI 104 Drain_Tank1 Drain Tank 1 0 OFF 1 ON BI 105 Water_Level_OK1 Water Level 1 Okay 0 O...

Page 15: ...range of Present_Value W Alarm 1 BV 201 OverTemp_Cont_ON2 Over temperature contact ON 2 0 Normal 1 Alarm W BV 202 Bad_Fill_Tank2 Defective filling tank 2 0 Normal 1 Alarm W BV 203 Bad_Refill_Tank2 Def...

Page 16: ...2 Burner Valve 2 0 OFF 1 ON BI 202 Burner_Fan2 Burner Fan 2 0 OFF 1 ON BI 203 Fill_Tank2 Fill Tank 2 0 OFF 1 ON BI 204 Drain_Tank2 Drain Tank 2 0 OFF 1 ON BI 205 Water_Level_OK2 Water Level 2 Okay 0 O...

Page 17: ...range of Present_Value W Alarm 1 BV 301 OverTemp_Cont_ON3 Over temperature contact ON 3 0 Normal 1 Alarm W BV 302 Bad_Fill_Tank3 Defective filling tank 3 0 Normal 1 Alarm W BV 303 Bad_Refill_Tank3 Def...

Page 18: ...3 Burner Valve 3 0 OFF 1 ON BI 302 Burner_Fan3 Burner Fan 3 0 OFF 1 ON BI 303 Fill_Tank3 Fill Tank 3 0 OFF 1 ON BI 304 Drain_Tank3 Drain Tank 3 0 OFF 1 ON BI 305 Water_Level_OK3 Water Level 3 Okay 0 O...

Page 19: ...range of Present_Value W Alarm 1 BV 401 OverTemp_Cont_ON4 Over temperature contact ON 4 0 Normal 1 Alarm W BV 402 Bad_Fill_Tank4 Defective filling tank 4 0 Normal 1 Alarm W BV 403 Bad_Refill_Tank4 Def...

Page 20: ...4 Burner Valve 4 0 OFF 1 ON BI 402 Burner_Fan4 Burner Fan 4 0 OFF 1 ON BI 403 Fill_Tank4 Fill Tank 4 0 OFF 1 ON BI 404 Drain_Tank4 Drain Tank 4 0 OFF 1 ON BI 405 Water_Level_OK4 Water Level 4 Okay 0 O...

Page 21: ...F 38400 OFF ON 76800 ON ON Please note that you must restart the unit in order for a change of baud rate to take effect Configurable BACnet Properties The following four BACnet properties are configur...

Page 22: ...gly If the answer to Question 2 is no there is no MS TP MAC address 0 then you can start up the NEPICSKG with the dip switch 1 in the OFF operational position In this mode the factory settings are in...

Page 23: ...e care must be taken in setting the MS TP MAC address and Max_Master property First the MAC address must be unique on the entire MS TP network However having a unique MAC address and a high baud rate...

Page 24: ...finds the right one to pass the token to As a general guideline the most efficient set up for an MS TP network is one in which the units are consecutively numbered starting at MAC address 0 and all ha...

Page 25: ...SKG Steam Humidifier BACnet Communication Module User Guide 23 Personal notes...

Page 26: ...nal Environmental Products Ltd 400 Bd Lebeau Montreal Qc H4N 1R6 CANADA www neptronic com Toll free in North America 1 800 361 2308 Tel 1 514 333 1433 Fax 1 514 333 3163 Customer service Fax 514 333 1...

Reviews: