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User Guide for neptronic models including: SKE4 Steam Humidifier Modbus Communication Module, SKE4, Steam Humidifier Modbus Communication Module, Humidifier Modbus Communication Module, Modbus Communication Module, Communication Module, Module
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DocumentDocumentSKE4 Steam Humidifier Modbus Communication Module User Guide SKE4-Modbus Guide-240202 (V2.07) SKE4 Steam Humidifier Modbus Communication Module User Guide Introduction The SKE4 Modbus Communication Module User Guide provides information for using Neptronic® communication feature. The controller uses Modbus communication protocol over serial line in the RTU mode and provides a Modbus network interface between client devices and Neptronic SKE4 devices. The SKE4 Modbus Guide assumes that you are familiar with Modbus terminology. The following are the requirements for Modbus: · Data Model. The SKE4 Steam Humidifier Modbus server data model uses only the Modbus Registers table. · Register Address: o As per protocol base (base 0); for PLC add 1 to protocol base. o As per holding register (base 400001). Note: Ensure that the Modbus communication software used does not have a limit on the range of the register addresses that can be viewed and supports 6-digit holding registers. · Function Codes. The SKE4 Steam Humidifier Modbus server supports a limited function codes subset comprising: o Read Holding Registers (0x03) o Write Single Register (0x06) o Write Multiple Registers (0x10) · Exception Responses. The SKE4 Steam Humidifier Modbus server supports the following exception codes: o Illegal data address o Illegal data value o Slave device busy · Serial Line. The SKE4 Steam Humidifier Modbus over serial line uses RTU transmission mode over a two-wire configuration RS485 (EIA/TIA-485 standard) physical layer. o The physical layer can use fixed baud rate selection or automatic baud rate detection (default) as per the Modbus Auto Baud Rate device menu item or holding register index 1. o The supported baud rates are 9600, 19200, 38400, and 57600. o The physical layer also supports variable parity control and stop bit configuration as per the Modbus Comport Config device menu item or holding register index 2. o In auto baud rate configuration, if the device detects only consecutive bad frames (2 or more) for one second with any given baud rate, it will reinitialize itself to the next baud rate. · Addressing. The SKE4 Steam Humidifier device only answers at the following address: o The device's unique address (1 to 246) that can be set through the device menu or through holding register index 0. www.neptronic.com Page | 1 SKE4 Steam Humidifier Modbus Communication Module User Guide Modbus Registers Table Glossary Name W RO Unsigned Signed Bit String Description Name Writable Register Read Only Register For range of values from 0 to 65,535, unless otherwise specified For range of values from -32,768 to 32,767, unless otherwise specified For registers with multiple values using bit mask (example, flags) ASCII MSB LSB MSW LSW Description For registers containing ASCII (8-bit) characters Most Significant Byte Least Significant Byte Most Significant Word Least Significant Word Modbus Registers Table Protocol Holding Base Register Description 0 400001 Modbus Address and Product Type 1 400002 Device Baud Rate 2 400003 Modbus Slave Communication Port Configuration 3 400004 Product Name (characters 8 & 7) 4 400005 Product Name (characters 6 & 5) 5 400006 Product Name (characters 4 & 3) 6 400007 Product Name (characters 2 & 1) Data Type Units, Limits, State Texts Writable Default Value Unsigned MSB = Product type, not writable LSB = Modbus Address (1 to 247), writable W Unsigned 0, 9600, 19200, 38400, and 57600, 0 = Auto Baud Scale 100 Rate Detection Value/100 (e.g. 38400 baud = 384) W 19200 Unsigned 0 = No parity, 2 Stop bits 1 = Even parity, 1 Stop bit 2 = Odd parity, 1 Stop bit W No parity, 2 Stops bits ASCII MSB = char 6, LSB = char 7 W ASCII MSB = char 4, LSB = char 5 W ASCII MSB = char 2, LSB = char 3 W ASCII MSB = char 0, LSB = char 1 W www.neptronic.com Page | 2 Protocol Holding Base Register Description 7 400008 Product Actual Firmware Version (in Integer x100) 8 400009 Product Actual EEPROM Version (in Integer x100) 2000 402001 Control Signal 2001 402002 Room RH Signal 2002 402003 Supply RH Signal 2003 402004 Water Level Signal 2004 402005 Water Level Low Signal 2005 402006 Water Level High Signal 2006 402007 Water Temperature Signal 2007 402008 Foam Signal 2008 402009 SSR Temperature Signal 2009 402010 Cabinet Temperature Signal 2010 402011 Current Sensor 1 Signal www.neptronic.com SKE4 Steam Humidifier Modbus Communication Module User Guide Data Type Units, Limits, State Texts Unsigned Scale 100 Unsigned Scale 100 1 to 65535 (e.g. 100) 1 to 65535 (e.g. 100) Unsigned Units: Volt (V), Range: 0V to 15V Scale 1000 Value x 1000 (e.g. 2V = 2000) Unsigned Units: Volt (V), Range: 0V to 15V Scale 1000 Value x 1000 (e.g. 2V = 2000) Unsigned Units: Volt (V), Range: 0V to 15V Scale 1000 Value x 1000 (e.g. 2V = 2000) Unsigned Units: Hz, Range: 0 to 30000Hz Scale 1 Value x 1 (e.g. 10Hz = 10) Unsigned Unit: Volt (V), Range: 0V to 10V Scale 1000 Value x 1000 (e.g. 2V = 2000) Unsigned Unit: Volt (V), Range: 0V to 10V Scale 1000 Value x 1000 (e.g. 2V = 2000) Unsigned Unit: Volt (V), Range: 0V to 10V Scale 1000 Value x 1000 (e.g. 2V = 2000) Unsigned Unit: Volt (V), Range: 0V to 10V Scale 1000 Value x 1000 (e.g. 2V = 2000) Unsigned Unit: Volt (V), Range: 0V to 10V Scale 1000 Value x 1000 (e.g. 2V = 2000) Unsigned Unit: Volt (V), Range: 0V to 10V Scale 1000 Value x 1000 (e.g. 2V = 2000) Unsigned Unit: Volt (V), Range: 0V to 3.30V Scale 1000 Value x 1000 (e.g. 1V = 1000) Writable Default Value RO RO RO 0V RO 0V RO 0V RO 0Hz RO 0V RO 0V RO 0V RO 0V RO 0V RO 0V RO 0V Page | 3 Protocol Holding Base Register Description 2011 402012 Current Sensor 2 Signal 2012 402013 Board Temperature Signal 2013 402014 Main Power Supply 4000 404001 Power Output Feedback Signal 4001 404002 Heater SSR Stage 6000 406001 Control Input 6001 406002 Control Min 6002 406003 Control Max 6003 406004 Control Bias 6004 406005 Room RH 6005 406006 Room RH Min 6006 406007 Room RH Max 6007 406008 Room RH Bias www.neptronic.com SKE4 Steam Humidifier Modbus Communication Module User Guide Data Type Units, Limits, State Texts Unsigned Unit: Volt (V), Range: 0V to 3.30V Scale 1000 Value x 1000 (e.g. 1V = 1000) Unsigned Unit: Volt (V), Range: 0V to 10V Scale 1000 Value x 1000 (e.g. 2V = 2000) Unsigned Unit: Volt (V), Range: 0V to 40V Scale 10 Value x 10 (e.g. 2V = 20) Unsigned Unit: Volt (V), Range: 0V to 10V Scale 1000 Value x 1000 (e.g. 2V = 2000) Unsigned Unit: %, Range: 0% to 100% Scale 100 Value x 100 (e.g. 10% = 1000) Unsigned Unit: %, Range: 0% to 100% Scale 100 Value x 100 (e.g. 10% = 1000) Unsigned Unit: %, Range: 0% to 100% Scale 100 Value x 100 (e.g. 10% = 1000) Unsigned Unit: %, Range: 0% to 100% Scale 100 Value x 100 (e.g. 10% = 1000) Signed Unit: %, Range: -10% to 10% Scale 100 Value x 100 (e.g. 10% = 1000) Unsigned Unit: % RH, Range: 0% RH to 100% RH Scale 100 Value x 100 (e.g. 10% RH = 1000) Unsigned Unit: % RH, Range: 0% RH to 100% RH Scale 100 Value x 100 (e.g. 10% RH = 1000) Unsigned Unit: % RH, Range: 0% RH to 100% RH Scale 100 Value x 100 (e.g. 10% RH = 1000) Unsigned Unit: % RH, Range: -10% RH to 10% RH Scale 100 Value x 100 (e.g. 10% RH = 1000) Writable Default Value RO 0V RO 0V RO 0V RO 0V RO 0% RO 0% W 0% W 0% W 0% RO 0% RH W 0% RH W 0% RH W 0% RH Page | 4 Protocol Holding Base Register Description 6008 406009 Supply High Limit RH 6009 406010 Supply High Limit RH Min 6010 406011 Supply High Limit RH Max 6011 406012 Supply High Limit RH Bias 6012 406013 Water Temperature 6013 406014 Water Temperature Bias 6014 406015 SSR Temperature 6015 406016 Cabinet Temperature 6016 406017 Current Sensor 1 6017 406018 Current Sensor 2 6018 406019 Board Temperature 6019 406020 Power Output Feedback Bias 6020 406021 Power Output Feedback Min www.neptronic.com SKE4 Steam Humidifier Modbus Communication Module User Guide Data Type Units, Limits, State Texts Writable Default Value Unsigned Unit: % RH, Range: 0% RH to 100% RH Scale 100 Value x 100 (e.g. 10% RH = 1000) Unsigned Unit: % RH, Range: 0% RH to 100% RH Scale 100 Value x 100 (e.g. 10% RH = 1000) Unsigned Unit: % RH, Range: 0% RH to 100% RH Scale 100 Value x 100 (e.g. 10% RH = 1000) Signed Unit: %, Range: -10% RH to 10% RH Scale 100 Value x 100 (e.g. 10% RH = 1000) Unsigned Unit: ºC/ºF, Range: 0°C to 125°C or 32°F to 257°F Scale 100 Value x 100 (e.g. 5°C = 500 or 10ºF = 1000) Signed Unit: ºC/ºF, Range: -10°C to 10°C or -18°F to 18°F Scale 100 Value x 100 (e.g. 5°C = 500 or 14ºF = 1400) Signed Unit: ºC/ºF, Range: -20°C to 100°C or -4°F to Scale 100 212°F, Value x 100 (e.g. 5°C = 500 or 10ºF = 1000) Signed Scale 100 Unsigned Scale 100 Unit: ºC/ºF, Range: -20°C to 100°C or -4°F to 212°F Value x 100 (e.g. 5°C = 500 or 10ºF = 1000) Unit: Amps (A), Range: 0A to 150A Value x 100 (e.g. 10A = 1000) Unsigned Unit: Amps (A), Range: 0A to 150A Scale 100 Value x 100 (e.g. 10A = 1000) Unsigned Scale 100 Unsigned Scale 1000 Unit: ºC/ºF, Range: 0°C to 100°C or 32°F to 212°F Value x 100 (e.g. 5°C = 500 or 32ºF = 3200) Unit: V, Range: -1V to 1V Value x 100 (e.g. 10V = 1000) Unsigned Unit: V, Range: 0V to 10V Scale 1000 Value x 100 (e.g. 10V = 1000) RO 0% RH W 0% RH W 0% RH W 0% RH RO 50°C or 122°F RO 0°C or 32°F RO 0°C or 32°F RO 0°C or 32°F RO 0A RO 0A RO 0°C or 32°F W 0V W 0V Page | 5 Protocol Holding Base Register Description 6021 406022 Power Output Feedback Max 6022 406023 Power Output Feedback 6023 6024 406024 Water Level 406025 Water Probe Low Pos Reading 6025 406026 Water Probe High Pos Reading 6026 406027 Water Probe Abs Low Pos Reading 6027 406028 Water Probe Abs High Pos Reading 6028 6029 6030 6031 406029 Room RH Network Reading 406030 Room RH Setpoint 406031 Room RH Unoccupied Setpoint 406032 Room RH Vacant Setpoint 6032 406033 Room Demand Proportional Gain 6033 406034 Room Demand Integral Time www.neptronic.com SKE4 Steam Humidifier Modbus Communication Module User Guide Data Type Units, Limits, State Texts Unsigned Unit: V, Range: 0V to 10V Scale 1000 Value x 100 (e.g. 10V = 1000) Unsigned Unit: %, Range: 0% to 100% Scale 100 Value x 100 (e.g. 10% = 1000) Unsigned Unit: %, Range: 0% to 120% Scale 10 Value x 10 (e.g. 10% = 100) Unsigned Unit: Hz, Range: 0 to 30000 Hz Scale 1 Value x 1 (e.g. 1 Hz = 1) Unsigned Unit: Hz, Range: 0 to 30000 Hz Scale 1 Value x 1 (e.g. 1 Hz = 1) Unsigned Unit: Hz, Range: 0 to 30000 Hz Scale 1 Value x 1 (e.g. 1 Hz = 1) Unsigned Unit: Hz, Range: 0 to 30000 Hz Scale 1 Value x 1 (e.g. 1 Hz = 1) Unsigned Scale 100 Unsigned Scale 100 Unsigned Scale 100 Unit: % RH, Range: 0% RH to 100% RH Value x 100 (e.g. 10% RH = 1000) Unit: % RH, Range: 0% RH to 100% RH Value x 100 (e.g. 10% RH = 1000) Unit: % RH, Range: 0% RH to 100% RH Value x 100 (e.g. 10% RH = 1000) Unsigned Scale 100 Unsigned Scale 10 Unit: % RH, Range: 0% RH to 100% RH Value x 100 (e.g. 10% RH = 1000) No Unit, Range: 1 to 200 Value x 10 (e.g. 10 = 100) Unsigned Unit: Seconds (sec), Range: 0 to 900 sec Scale 10 Value x 10 (e.g. 10 sec = 100) Writable Default Value W 0V RO 0% RO 78% RO 30000Hz RO 30000Hz RO 30000Hz RO 30000Hz W 0% RH W 40% RH W 30% RH W 20% RH W 20 W 0 sec Page | 6 Protocol Holding Base Register Description 6034 406035 Room Demand Derivative Time 6035 406036 Room Demand 6036 406037 Supply High Limit Network Reading 6037 406038 Supply High Limit Setpoint 6038 406039 Supply High Limit Proportional Gain 6039 406040 Supply High Limit Integral Time 6040 406041 Supply High Limit Derivative Time 6041 406042 Supply High Limit Demand 6042 406043 Humidity Control Network Demand 6043 406044 Humidity Control Network High Limit 6044 406045 Humidity Demand 6045 406046 SDU Fan Off Delay 6046 406047 System Power Output www.neptronic.com SKE4 Steam Humidifier Modbus Communication Module User Guide Data Type Units, Limits, State Texts Unsigned Scale 10 Unsigned Scale 100 Unsigned Scale 100 Unsigned Scale 100 Unsigned Scale 10 Unsigned Scale 10 Unsigned Scale 10 Unsigned Scale 100 Unsigned Scale 100 Unsigned Scale 100 Unsigned Scale 100 Unsigned Scale 1 Unsigned Scale 100 Unit: Seconds (sec), Range: 0 to 60 sec Value x 10 (e.g. 10 sec = 100) Unit: % RH, Range: 0% RH to 100% RH Value x 100 (e.g. 10% RH = 1000) Unit: % RH, Range: 0% RH to 100% RH Value x 100 (e.g. 10% RH = 1000) Unit: % RH, Range: 0% RH to 100% RH Value x 100 (e.g. 10% RH = 1000) No Unit, Range: 1 to 200 Value x 10 (e.g. 10 = 100) Unit: Seconds (sec), Range: 0 to 900 sec Value x 10 (e.g. 10 sec = 100) Unit: Seconds (sec), Range: 0 to 60 sec Value x 10 (e.g. 10 sec = 100) Unit: % RH, Range: 0% RH to 100% RH Value x 100 (e.g. 10% RH = 1000) Unit: %, Range: 0% to 100% Value x 100 (e.g. 10% = 1000) Unit: %, Range: 0% to 100% Value x 100 (e.g. 10% = 1000) Unit: %, Range: 0% to 100% Value x 100 (e.g. 10% = 1000) Unit: Minutes (min), Range: 5 to 20 mins Value x 1 (e.g. 5 mins = 5) Unit: %, Range: 0% to 100% Value x 100 (e.g. 10% = 1000) Writable Default Value W 0 sec RO 0% RH W 0% RH W 80% RH W 10 W 0 sec W 0 sec RO 0% RH W 0% W 100% RO 0% W 5 min RO 0% Page | 7 Protocol Holding Base Register Description 6047 406048 System Steam Capacity 6048 406049 Boiler Demand 6049 406050 Boiler Capacity 6050 406051 Boiler Power Output 6051 6052 6053 6054 6055 6056 6057 6058 6059 6060 6061 6062 406052 Boiler Run Time (0) 406053 406054 406055 Boiler Run Time (1) Boiler Run Time (2) Boiler Run Time (3) 406056 Boiler On Time (0) 406057 406058 406059 Boiler On Time (1) Boiler On Time (2) Boiler On Time (3) 406060 Boiler Service Run Time (0) 406061 406062 406063 Boiler Service Run Time (1) Boiler Service Run Time (2) Boiler Service Run Time (3) www.neptronic.com SKE4 Steam Humidifier Modbus Communication Module User Guide Data Type Units, Limits, State Texts Unsigned Scale 10 Unsigned Scale 100 Unsigned Scale 10 Unsigned Scale 100 Unsigned Scale 100 Unsigned Scale 100 Unsigned Scale 100 Unit: kg/hr or lb/hr, Range: 0 to 3000 kg/hr or 0 to 6614 lb/hr Value x 10 (e.g. 10kg/hr = 100 or 10lb/hr = 100) Unit: %, Range: 0% to 100% Value x 100 (e.g. 10% = 1000) Unit: kg/hr or lb/hr, Range: 0 to 3000 kg/hr or 0 to 6614 lb/hr Value x 10 (e.g. 10kg/hr = 100 or 10lb/hr = 100) Unit: %, Range: 0% to 100% Value x 100 (e.g. 10% = 1000) Units: Hours (h), Range: 0 to 2147483647 h Value x 100 (e.g. 10 h = 1000) Units: Hours (h), Range: 0 to 2147483647 h Units: Hours (h), Range: 0 to 2147483647 h Units: Hours (h), Range: 0 to 2147483647 h Units: Hours (h), Range: 0 to 2147483647 h Value x 100 (e.g. 10 h = 1000) Units: Hours (h), Range: 0 to 2147483647 h Units: Hours (h), Range: 0 to 2147483647 h Units: Hours (h), Range: 0 to 2147483647 h Units: Hours (h), Range: 0 to 2147483647 h Value x 100 (e.g. 10 h = 1000) Units: Hours (h), Range: 0 to 2147483647 h Units: Hours (h), Range: 0 to 2147483647 h Units: Hours (h), Range: 0 to 2147483647 h Writable Default Value RO 0 kg/hr or 0 lb/hr W 0% RO 0 kg/hr or 0 lb/hr RO 0% RO 0h RO 0h RO 0h Page | 8 Protocol Holding Base Register Description 6063 6064 6065 6066 6067 406064 Boiler Service On Time (0) 406065 406066 406067 Boiler Service On Time (1) Boiler Service On Time (2) Boiler Service On Time (3) 406068 Boiler Minimum Steam Output 6068 406069 Boiler Drain Interval 6069 406070 Boiler Drain Volume 6070 406071 Boiler Max Steam Output 6071 40672 Boiler Idle Time Drain 6072 406073 Boiler Idle Temperature Setpoint 6073 406074 Boiler Blowdown Rate 6074 406075 Boiler Service Interval 6075 406076 Room Demand Proportional Band 6076 406077 HRL Temperature www.neptronic.com SKE4 Steam Humidifier Modbus Communication Module User Guide Data Type Units, Limits, State Texts Writable Default Value Unsigned Units: Hours (h), Range: 0 to 2147483647 h Scale 100 Value x 100 (e.g. 10 h = 1000) RO Units: Hours (h), Range: 0 to 2147483647 h Units: Hours (h), Range: 0 to 2147483647 h Units: Hours (h), Range: 0 to 2147483647 h Unsigned Unit: %, Range: 1 to 25% Scale 1 Value x 1 (e.g. 1% = 1) W Unsigned Units: Hours (h), Range: 0 to 24 h Scale 1 Value x 1 (e.g. 1 h = 1) W Unsigned Unit: %, Range: 25 to 100% Scale 1 Value x 1 (e.g. 30% = 30) W Unsigned Unit: %, Range: 0 to 100% Scale 1 Value x 1 (e.g. 1% = 1) W Unsigned Unit: Hours (h), Range: 0 to 72 h Scale 1 Value x 1 (e.g. 1 h = 1) W Unsigned Unit: ºC/ºF, Range: 0°C to 60°C or 32°F or 140°F Scale 1 Value x 1 (e.g. 5°C = 500 or 10ºF = 1000) W Unsigned Unit: %, Range: 0% to 100% Scale 1 Value x 1 (e.g. 10% = 10) W Unsigned Unit: Hours (h), Range: 1000 to 3000 h Scale 1 Value x 1 (e.g. 1500 h = 1500) W Unsigned Unit: %, Range: 1% to 100% Scale 10 Value x 100 (e.g. 10% = 100) RO Signed Unit: ºC/ºF, Range: -40°C to 260°C or -40°F to Scale 100 500°F, Value x 100 (e.g. 5°C = 500 or 10ºF = 1000) RO 0h 5% 6h 100% 100% 24h 0°C or 32°F 0% 1000h 5% 0°C or 32°F Page | 9 Protocol Holding Base Register Description 6077 406078 Supply High Limit Proportional Band 6078 406079 HRL Humidity 6079 406080 Modbus TCP IP Keep Alive Time Out 6080 406081 Humidity Demand Low Dead Band 6081 406082 Network Timeout 6082 406083 Water Level Replace Interval 6083 6084 6085 6086 6087 406084 Boiler Manual Calibration Time (0) 406085 406086 406087 Boiler Manual Calibration Time (1) Boiler Manual Calibration Time (2) Boiler Manual Calibration Time (3) 406088 HRL Temperature Bas 6088 406089 HRL Humidity Bias 6089 406090 Fill Delay 6090 406091 Clean Valve Delay www.neptronic.com SKE4 Steam Humidifier Modbus Communication Module User Guide Data Type Units, Limits, State Texts Writable Default Value Unsigned Scale 10 Unsigned Scale 100 Unsigned Scale 1 Unsigned Scale 100 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Signed Scale 10 Signed Scale 10 Unsigned Scale 1 Unsigned Scale 1 Unit: %, Range: 1% to 100% Value x 100 (e.g. 10% = 100) Unit: %, Range: 0% RH to 100% RH Value x 100 (e.g. 10% RH = 1000) Unit: Minutes (min), Range: 1 to 1440 mins Value x 1 (e.g. 5 mins = 5) Unit: %, Range: 0% to 100% Value x 100 (e.g. 10% = 1000) Unit: Seconds (sec), Range: 1 to 900 sec Value x 1 (e.g. 10sec = 10) Unit: Days, Range: 1 to 7 days Value x 1 (e.g. 1 day = 1) Unit: Hours (h), Range: 0 to 21474836.47 h Value x 1 (e.g. 1 h = 1) Unit: Hours (h), Range: 0 to 21474836.47 h Unit: Hours (h), Range: 0 to 21474836.47 h Unit: Hours (h), Range: 0 to 21474836.47 h Unit: ºC/ºF, Range: -10°C to 10°C or -18°F to 18°F Value x 10 (e.g. 5°C = 50 or 14ºF = 140) Unit: %RH, Range: -10%RH to 10%RH Value x 10 (e.g. 5%RH = 50) Unit: Minutes (min), Range: 1 to 15 mins Value x 1 (e.g. 5 mins = 5) Unit: %, Range: 0% to 80% Value x 1 (e.g. 10% = 10) RO 10% RO 0% RH W 5 min W 1% W 900 sec W 3day RO 0h W 0°C or 32°F W 0%RH RO 0 min W 50% Page | 10 Protocol Holding Base Register 10000 410001 Air Flow Description 10001 410002 Supply High Limit 10002 410003 Interlock 10003 410004 Binary External Demand 10004 410005 Water Leak Detection 10005 410006 Thermal Cutout 10006 410007 RS485 Interface 10007 410008 Ethernet Interface 10008 410009 Contactors PCB Fuse 10009 410010 Control PCB Fuse 11000 11001 11002 411001 Alarm Warning Relay 411002 Service Warning Relay 411003 Water Level Valve www.neptronic.com SKE4 Steam Humidifier Modbus Communication Module User Guide Data Type Units, Limits, State Texts Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 0 = Closed 1 = Open 0 = Closed 1 = Open 0 = Closed 1 = Open 0 = 0% 1 = 100% 0 = Ok 1 = Leak 0 = Closed 1 = Open 0 = No 1 = Yes 0 = No 1 = Yes 0 = Normal 1 = Blown Fuse 0 = Normal 1 = Open Fuse 0 = Off 1 = On 0 = Off 1 = On 0 = Off 1 = On Writable Default Value RO Closed RO Closed RO Closed RO 0% RO Ok RO Closed RO No RO No RO Normal RO Normal RO Off RO Off RO Off Page | 11 Protocol Holding Base Register Description 11003 411004 Tank Water Valve 11004 411005 Drain Cooler Valve 11005 411006 Drain Pump 11006 411007 Drain Valve 11007 411008 Main Contactor 11008 411009 Heater Stage 1 11009 411010 Heater Stage2 11010 411011 Heater Stage 3 11011 411012 SDU Fan 11012 411013 Alarm LED 11013 411014 Power LED 11014 411015 Buzzer 12000 412001 Manual Water Calibration State www.neptronic.com SKE4 Steam Humidifier Modbus Communication Module User Guide Data Type Units, Limits, State Texts Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 0 = Off 1 = On 0 = Off 1 = On 0 = Off 1 = On 0 = Off 1 = On 0 = Off 1 = On 0 = Off 1 = On 0 = Off 1 = On 0 = Off 1 = On 0 = Off 1 = On 0 = Off 1 = On 0 = Off 1 = On 0 = Off 1 = On 0 = Ok 1 = Required Writable Default Value RO Off RO Off RO Off RO Off RO Off RO Off RO Off RO Off RO Off RO Off RO Off RO Off RO Ok Page | 12 Protocol Holding Base Register Description 12001 412002 Water Level Low 12002 412003 Water Level High 12003 412004 Foam Sensor 12004 12005 12006 412005 SDU Fan Fault 412006 Boiler Service Operation 412007 Boiler Service Due 12007 412008 Foam 12008 412009 HRL Lock Setpoint 12009 412010 Network Control State 12010 412011 Inhibit Resistive Probe 12011 412012 Notify Alarm 12012 412013 Notify Warning 12013 412014 Notify App Msg www.neptronic.com SKE4 Steam Humidifier Modbus Communication Module User Guide Data Type Units, Limits, State Texts Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 0 = Inactive 1 = Active 0 = Inactive 1 = Active 0 = NoFoam 1 = Foam 0 = Off 1 = On 0 = Not Allowed 1 = Allowed 0 = No 1 = Yes 0 = Ok 1 = Detected 0 = Unlock 1 = Lock 0 = Normal 1 = Fault 0 = No 1 = Yes 0 = Off 1 = On 0 = Off 1 = On 0 = Off 1 = On Writable Default Value RO Inactive RO Inactive RO NoFoam RO Off W Allowed RO No RO Ok W Unlock W Normal W No W Off W Off W Off Page | 13 Protocol Holding Base Register Description 12014 412015 Boiler Line Rinse 12015 412016 AntiFreeze Warning 15000 415001 System Log Verbose Level 15001 415002 Modbus Server Units 15002 415003 Control Signal Type 15003 415004 Room RH Signal Type 15004 415005 Supply RH Signal Type 15005 415006 Control Profile 15006 415007 Modulating High Limit Profile 15007 415008 Occupancy State www.neptronic.com SKE4 Steam Humidifier Modbus Communication Module User Guide Data Type Units, Limits, State Texts Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 0 = Off 1 = On 0 = Inactive 1 = Drain 0 = None 1 = Emergency 2 = Alert 3 = Critical 4 = Error 0 = Metric 1 = Imperial 0 = 0-10Vdc 1 = 2-10Vdc 2 = 4-20mA 3 = 0-20mA 0 = 0-10Vdc 1 = 2-10Vdc 2 = 4-20mA 3 = 0-20mA 0 = 0-10Vdc 1 = 2-10Vdc 2 = 4-20mA 3 = 0-20mA 0 = ExternAnalog 1 = ExternNetwork 2 = InternAnalog 0 = Disabled 1 = ExternAnalog 2 = ExternNetwork 0 = Occupied 1 = Unoccupied 5 = Warning 6 = Notice 7 = Info 8 = Debug 3 = InternNetwork 4 = HRL 5 = Custom 3 = InternAnalog 4 = InternNetwork 5 = Custom 2 = Vacant 3 = Off Writable Default Value W On RO Inactive W Debug W Metric W 0-10Vdc W 0-10Vdc W 0-10Vdc W ExternAnalog W Disabled RO Occupied Page | 14 Protocol Holding Base Register Description 15008 415009 Room RH Source 15009 415010 Room RH Setpoint Source 15010 415011 Supply High Limit Reading Source 15011 415012 Supply High Limit Setpoint Source 15012 415013 Humidity Control Demand Source 15013 415014 Humidity Control High Limit Source 15014 415015 Humidity Control Cutout State 15015 415016 SDU Fan Target 15016 415017 Boiler Request 15017 415018 Boiler State 15018 415019 Boiler Fill Mode SKE4 Steam Humidifier Modbus Communication Module User Guide Data Type Units, Limits, State Texts Writable Default Value Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 0 = None 1 = RoomRH 0 = None 1 = Internal 0 = None 1 = SuppyHLRH 0 = None 1 = Internal 0 = None 1 = ControlInput 0 = None 1 = ControlInput 0 = Off 1 = Normal 2 = LowLimit 0 = None 1 = SDUFan 0 = None 1 = Reset Alarms 2 = Drain 0 = Off 1 = Idle 2 = LineRinse 3 = TankRinse 4 = Filling 0 = OneShot 1 = Pulsed 2 = Network 3 = HRL 2 = ControlInput W None W None 2 = Network W None 2 = ControlInput W None 2 = RoomDemand 3 = Network W ControlInput 2 = SupplyHLDemand 3 = Network W None 3 = HighLimit 4 = NoAirFlow 5 = Interlock RO Off W None 3 = Reset Counters 4 = Filling W 5 = WaterCalib 5 = Draining 6 = Heating 7 = Boiling RO 8 = Alarm None Off W Pulsed www.neptronic.com Page | 15 Protocol Holding Base Register Description 15019 415020 Boiler Alarm 15020 15021 15022 15023 15024 15025 15026 15027 415021 Boiler Idle Tank Rinse On 415022 Boiler Idle Tank Rinse Off 415023 Water Probe Auto Calib. 415024 System Power State 415025 Water Level Probe Warning 415026 Water Level Probe Failure 415027 Water Level Probe Alarm 415028 Boiler Startup Tank Rinse SKE4 Steam Humidifier Modbus Communication Module User Guide Data Type Units, Limits, State Texts Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 Unsigned Scale 1 0 = Normal 1 = FailedPump 2 = FillTimeout 3 = BlockedPiping 4 = HeatTimeout 5 = Overheat 0 = Off 1 = On 0 = Off 1 = On 0 = Off 1 = On 0 = Off 1 = On 0 = Ok 1 = Replace 0 = None 1 = Capacitive 0 = Ok 1 = Defect 0 = Off 1 = On 6 = WaterLeak 7 = Service 8 is Reserved 9 = TankBlocked 10 = RefillDelay 2 = Resistive 3 = Both 2 = NoCalib Writable Default Value RO Normal W Off W Off W On W Off RO Ok RO None RO Ok W Off www.neptronic.com Page | 16 Notes 400 Lebeau 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)