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SKS4 Steam to Steam Humidifier 

 

Modbus Communication Module User Guide 

 

www.neptronic.com

 

Page | 3 

 

 

Protocol 

Base 

Holding 

Register 

Description 

Data Type 

Units, Limits, State Texts 

Writable 

Default 

Value 

40000

9

 

Product Actual EEPROM Version (in 
Integer x100) 

Unsigned 

Scale 100

 

1 to 65535 (e.g. 100) 

RO 

 

2000 

40

2001

 

Control Signal 

Unsigned 

Scale 1000

 

Units: Volt (V), Range: 0V to 15V 

Value x 1000 (e.g. 1V = 1000)

 

RO 

0V 

2001 

40

2002

 

Room RH Signal 

Unsigned 

Scale 1000

 

Units: Volt (V), Range: 0V to 15V 

Value x 1000 (e.g. 1V = 1000)

 

RO 

0V 

2002 

40

2003

 

Supply RH Signal 

Unsigned 

Scale 1000

 

Units: Volt (V), Range: 0V to 15V 

Value x 1000 (e.g. 1V = 1000)

 

RO 

0V 

2003 

40

2004

 

Water Level Signal 

Unsigned 

Scale 1

 

Units: Hz, Range: 0 to 30000Hz 

Value x 1 (e.g. 10Hz = 10)

 

RO 

0Hz 

2004 

40

2005

 

Water Level Low Signal 

Unsigned 

Scale 1000

 

Unit: Volt (V), Range: 0V to 10V 

Value x 1000 (e.g. 1V = 1000)

 

RO 

0V 

2005 

40

2006

 

Water Level High Signal 

Unsigned 

Scale 1000

 

Unit: Volt (V), Range: 0V to 10V 

Value x 1000 (e.g. 1V = 1000)

 

RO 

0V 

2006 

40

2007

 

Water Temperature Signal 

Unsigned 

Scale 1000

 

Unit: Volt (V), Range: 0V to 10V 

Value x 1000 (e.g. 1V = 1000)

   

RO 

0V 

2007 

40

2008

 

Foam Signal 

Unsigned  

Scale 1000

 

Unit: Volt (V), Range: 0V to 10V 

Value x 1000 (e.g. 1V = 1000)

   

RO 

0V 

2008 

40

2009

 

Cabinet Temperature Signal 

Unsigned  

Scale 1000

 

Unit: Volt (V), Range: 0V to 10V 

Value x 1000 (e.g. 1V = 1000)

 

RO 

0V 

2009 

40

2010

 

Board Temperature Signal 

Unsigned  

Scale 1000

 

Unit: Volt (V), Range: 0V to 10V 

Value x 1000 (e.g. 1V = 1000)

 

RO 

0V 

2010 

40

2011

 

Main Power Supply 

Unsigned 

Scale 10

 

Unit: Volt (V), Range: 0V to 40V 

Value x 10 (e.g. 1V = 10)

 

RO 

0V 

2011 

40

2012

 

Steam Valve Feedback Signal 

Unsigned 

Scale 1000 

Units: Volt (V), Range: 0V to 10.5V 

Value x 1000 (e.g. 1V = 1000) 

RO 

0V 

Summary of Contents for SKS4 Modbus

Page 1: ...SKS4 Modbus Guide 191017 SKS4 Steam to Steam Humidifier Modbus Communication Module User Guide ...

Page 2: ...ising o Read Holding Registers 0x03 o Write Single Register 0x06 o Write Multiple Registers 0x10 Exception Responses The SKS4 Steam to Steam Humidifier Modbus server supports the following exception codes o Illegal data address o Illegal data value o Slave device busy Serial Line The SKS4 Steam to Steam Humidifier Modbus over serial line uses RTU transmission mode over a two wire configuration RS4...

Page 3: ...ption Data Type Units Limits State Texts Writable Default Value 0 400001 Modbus Address and Product Type Unsigned MSB Product type not writable LSB Modbus Address 1 to 247 writable W 1 400002 Device Baud Rate Unsigned Scale 100 0 9600 19200 38400 and 57600 0 Auto Baud Rate Detection Value 100 e g 38400 baud 384 W 19200 2 400003 Modbus Slave Communication Port Configuration Unsigned 0 No parity 2 S...

Page 4: ... RO 0Hz 2004 402005 Water Level Low Signal Unsigned Scale 1000 Unit Volt V Range 0V to 10V Value x 1000 e g 1V 1000 RO 0V 2005 402006 Water Level High Signal Unsigned Scale 1000 Unit Volt V Range 0V to 10V Value x 1000 e g 1V 1000 RO 0V 2006 402007 Water Temperature Signal Unsigned Scale 1000 Unit Volt V Range 0V to 10V Value x 1000 e g 1V 1000 RO 0V 2007 402008 Foam Signal Unsigned Scale 1000 Uni...

Page 5: ...ure Unsigned Scale 100 Unit ºC ºF Range 0 C to 125 C or 32 F to 257 F Value x 100 e g 5 C 500 or 40ºF 4000 RO 50 C or 122 F 6006 406007 Water Temperature Min Unsigned Scale 100 Unit ºC ºF Range 0 C to 250 C or 32 F to 482 F Value x 100 e g 5 C 500 or 40ºF 4000 RO 0 C or 32 F 6007 406008 Water Temperature Max Unsigned Scale 100 Unit ºC ºF Range 0 C to 250 C or 32 F to 482 F Value x 100 e g 5 C 500 ...

Page 6: ...e 1 Unit Hz Range 0 to 30000 Hz Value x 1 e g 1 Hz 1 RO 30000Hz 6019 406020 Water Probe Abs Low Pos Reading Unsigned Scale 1 Unit Hz Range 0 to 30000 Hz Value x 1 e g 1 Hz 1 RO 30000Hz 6020 406021 Water Probe Abs High Pos Reading Unsigned Scale 1 Unit Hz Range 0 to 30000 Hz Value x 1 e g 1 Hz 1 RO 30000Hz 6021 406022 Room RH Network Reading Unsigned Scale 100 Unit RH Range 0 RH to 100 RH Value x 1...

Page 7: ...Low Dead Band 0 Unsigned Scale 100 Unit Range 0 to 100 Value x 100 e g 10 1000 W 1 6033 406034 Humidity Demand Low Dead Band 1 Unit Range 0 to 100 6034 406035 Network Timeout 0 Unsigned Scale 1 Unit Seconds sec Range 1 to 900 sec Value x 1 e g 10sec 10 W 900 sec 6035 406036 Network Timeout 1 Unit Seconds sec Range 1 to 900 sec 6036 406037 System Power Output Unsigned Scale 100 Unit Range 0 to 100 ...

Page 8: ...b hr Value x 10 e g 10 kg hr 100 or 10 lb hr 100 RO 15 kg hr or 33 06 lb hr 6048 406049 Boiler Power Output Unsigned Scale 100 Unit Range 0 to 100 Value x 100 e g 10 1000 RO 0 6049 406050 Boiler Run Time 0 Unsigned Scale 100 Units Hours h Range 0 to 21474836 47 h Value x 100 e g 10h 1000 RO 0h 6050 406051 Boiler Run Time 1 Units Hours h Range 0 to 21474836 47 h 6051 406052 Boiler Run Time 2 Units ...

Page 9: ...ned Scale 1 Unit Range 1 to 25 Value x 1 e g 1 1 W 5 6066 406067 Boiler Drain Interval Unsigned Scale 1 Units Hours h Range 0 to 24 h Value x 1 e g 1 h 1 W 6h 6067 406068 Boiler Drain Volume Unsigned Scale 1 Unit Range 25 to 100 Value x 1 e g 30 300 W 100 6068 406069 Boiler Max Steam Output Unsigned Scale 1 Unit Range 0 to 100 Value x 1 e g 30 300 W 100 6069 406070 Boiler Idle Time Drain Unsigned ...

Page 10: ...h Limit Unsigned Scale 1 0 Closed 1 Open RO Closed 10002 410003 Interlock Unsigned Scale 1 0 Closed 1 Open RO Closed 10003 410004 Binary External Demand Unsigned Scale 1 0 0 1 100 RO 0 10004 410005 Water Leak Detection Unsigned Scale 1 0 Ok 1 Leak RO Ok 10005 410006 Thermal Cutout Unsigned Scale 1 0 Closed 1 Open RO Closed 10006 410007 RS485 Interface Unsigned Scale 1 0 No 1 Yes RO No 10007 410008...

Page 11: ...Valve Unsigned Scale 1 0 Off 1 On RO Off 11005 411006 Drain Cooler Valve Unsigned Scale 1 0 Off 1 On RO Off 11006 411007 Drain Pump Unsigned Scale 1 0 Off 1 On RO Off 11007 411008 Drain Pump 2 Unsigned Scale 1 0 Off 1 On RO Off 11008 411009 Drain Pump 3 Unsigned Scale 1 0 Off 1 On RO Off 11009 411010 Alarm LED Unsigned Scale 1 0 Off 1 On RO Off 11010 411011 Power LED Unsigned Scale 1 0 Off 1 On RO...

Page 12: ...nt Unsigned Scale 1 0 Unlock 1 Lock W Unlock 12006 412007 Notify Alarm Unsigned Scale 1 0 Off 1 On W Off 12007 412008 Notify Warning Unsigned Scale 1 0 Off 1 On W Off 12008 412009 Notify App Msg Unsigned Scale 1 0 Off 1 On W Off 12009 412010 Inhibit Resistive Probe Unsigned Scale 1 0 No 1 Yes W No 12010 412011 Boiler Service Operation Unsigned Scale 1 0 Not Allowed 1 Allowed W Allowed 12011 412012...

Page 13: ... InternNetwork 5 Custom W Disabled 15005 415006 Occupancy State Unsigned Scale 1 0 Occupied 1 Unoccupied 2 Vacant 3 Off RO Occupied 15006 415007 Room RH Source Unsigned Scale 1 0 None 1 RoomRH 2 Network W None 15007 415008 Room RH Setpoint Source Unsigned Scale 1 0 None 1 Internal 2 ControlInput W None 15008 415009 Supply High Limit Reading Source Unsigned Scale 1 0 None 1 SuppyHLRH 2 Network W No...

Page 14: ...eShot 1 Pulsed W Pulsed 15016 415017 Boiler Alarm Unsigned Scale 1 0 Normal 1 FailedPump 2 FillTimeout 3 BlockedPiping 4 HeatTimeout 5 Overheat 6 WaterLeak 7 Service 8 Foaming 9 TankBlocked 10 RefillDelay RO Normal 15017 415018 Boiler Idle Tank Rinse On Unsigned Scale 1 0 Off 1 On W Off 15018 415019 Boiler Idle Tank Rinse Off Unsigned Scale 1 0 Off 1 On W Off 15019 415020 Water Probe Auto Calib Un...

Page 15: ...Notes ...

Page 16: ...au blvd Montreal Qc H4N 1R6 Canada www neptronic com Toll free in North America 1 800 361 2308 Tel 514 333 1433 Fax 514 333 3163 Customer service fax 514 333 1091 Monday to Friday 8 00am to 5 00pm Eastern time ...

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