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NIM2-MAN-19V01 (1104) 

Copyright © 2019 Define Instruments

3

ORDER CODES

Nimbus IoT

NIM2

Edge Processing Interface

Base model: MQTT cloud service interface – TLS security layer, store and forward record 
buffer, RTC data time stamp, 2x analog (4-20mA) process input (non-isolated), 4x digital 
input, 1x logic output (open collector, 80mA) 2x form A, 1x form C relay contacts (16A)

Power Supply

HV
LV

85-265 V AC/DC power supply
10-32 V DC power supply

Connection type

WIF
CM1

WiFi connection
Cellular CAT-M1 connection

Serial communication


RS

No RS232/485 communications
RS232/485 communications (isolated) - Mod-
bus RTU master/slave, ASCII and local display 
(RS232C) interface port

Required Accessories

Bridge Key

BRIDGE-KEY

USB Bridge Key, required for PC programming us-
ing our free WorkBench software

Nimbus IoT

Power Supply

NIM2

 

 

Connection type

SAFETY NOTICES

For your safety and the prevention of damage to the Nimbus IoT unit and other 
equipment connected to it, 

please read complete instructions prior to installation 

and operation of the Nimbus IoT and carefully observe all safety regulations and 
instructions

Consult this manual carefully in all cases where hazard symbols are 

marked on the Nimbus IoT unit.

Use of this instrument in a manner not specified by the manufacturer may compro-
mise the protection provided by the instrument. This instrument should not be used 
to directly drive valves, motors, or other actuators, unless equipped with appropri-
ate safeguards.

It is the responsibility of the user to identify potential hazards that may arise in 
the event of a fault to unit, and implement safeguards for the prevention of harm 
to persons or equipment. The safety of any system incorporating this unit is the 
responsibility of the assembler of the system.

 Serial comms

Summary of Contents for Nimbus IoT

Page 1: ...TU master slave communication port directly interfaces to metering and control automation Nimbus onboard logic engine allows customization for specific measurement and monitoring requirements Extra cloud interface security and Store and Forward data integrity Connection and data security are paramount so the Nimbus IoT provides peace of mind with Transport Layer Security TLS 1 2 protocol In the ev...

Page 2: ...3 Main Navigation 14 7 Wiring LED s 15 7 1 Nimbus IoT Terminals 15 7 2 Serial Port RS485 D and RS232 F 15 7 3 Relay Output A B C 16 7 4 Digital Input G 16 7 5 Power Supply 18 7 6 Front Panel LED s 19 8 Input Wiring Specifications 20 8 1 Current Input 20 8 2 AC Current Sensor 21 9 Connecting To A PLC 22 9 1 Nimbus IoT Registers 2222 10 Maintenance 24 10 1 Calibration 24 10 2 Troubleshooting 24 A Ap...

Page 3: ...Nimbus IoT Power Supply NIM2 Connection type SAFETY NOTICES For your safety and the prevention of damage to the Nimbus IoT unit and other equipment connected to it please read complete instructions prior to installation and operation of the Nimbus IoT and carefully observe all safety regulations and instructions Consult this manual carefully in all cases where hazard symbols are marked on the Nimb...

Page 4: ... OPERATING MODES 2 1 WiFi Operating Modes Station Mode The most common operating mode for a WiFi enabled Nimbus IoT is the Station or Client Mode This mode is used when the Nimbus IoT is required to connect to an access point of an existing WiFi network as a client Depending on the plugin see Section 6 it can be set up to work with a DHCP server default setting or to have a fixed or Static IP addr...

Page 5: ...er supply or digital inputs General specifications Linearity repeatability 0 1 FSO RF immunity 1 effect FSO typical Noise immunity CMRR 160dB tested at 300V RMS 50Hz Permanent memory E2ROM 100 000 writes per input parameter Relay output 1 x Change over Form C Relay 15A 250V AC or 15A 30V DC 2 x Form A Relays 3A 3A 250V AC or 3A 30V DC Logic output 1 x Logic output Open collector 80mA maximum capac...

Page 6: ... Transport Layer Securi ty TLS V1 2 with server certificate and X 509 client certificate authentication Over Air Updates Over The Air updates are available for main plugins custom macros certificates cloud adapter firmware updates WiFi and cellular MQTT interface Based on MQTT 3 1 1 with Qos 0 1 Construction Casing DIN 35 rail mounting Material ABS inflammability V0 UL94 Phoenix type removable scr...

Page 7: ...Environment The Nimbus IoT should be installed in a loca tion that does not exceed the maximum op erating temperature and at a safe distance from other devices that generate excessive heat The installation environment should provide good air circulation to the unit The plastic casing and product label may be cleaned if required using a soft damp cloth and neutral soap product Caution should be exe...

Page 8: ...nds and any other required components This enclosure type should be earthed If you are using the WiFi model or a cellu lar modem a Metal Enclosure will impede your signal strength In these cases the an tenna should be installed on the outside of the enclosure using a compatible Antenna Extension Cable N B exterior mounting is only suitable for indoor covered outdoor environments where antenna is p...

Page 9: ...obtained by adding RC snubbers to the contactors or power switches C Using shielded cable on sensitive input and control signal lines Good results can be obtained by grounding the shields to the metal enclosure close to the entry point All cables act as aeri als and pick up unwanted R F radiated signals and noise the earthed shield acts as a faraday cage around the ca bles shunting the unwanted en...

Page 10: ...ady connected using the Bridge Key please disconnect before continuing A Download the latest version of WorkBench from www defineinstruments com workbench B Extract the install file from the zip folder Right click on the zip folder and choose Extract All or extract the file using another extraction utility of your choice C Double click on the extracted msi install file This will launch the WorkBen...

Page 11: ...an alternative location by clicking Browse Click Next to continue G Depending on your security settings the User Account Control dialog may appear If it does simply click Yes to al low the program to be installed on your computer H The install wizard will now install Define WorkBench Please wait This process usually takes 2 3 minutes but may take longer in some situations I When the installation h...

Page 12: ...her end to your Bridge Key Then plug the Bridge Key into your com puter s USB port see Fig 5 Supply Power Supply power to the Nimbus IoT referring to 7 1 for wiring Connect to your Nimbus IoT in Define WorkBench Launch Define WorkBench see Section 5 for installation instructions and select the Prog Port tab If your Nimbus IoT is powered up and con nected via the Bridge Key then the COM Port will b...

Page 13: ...ing up the Apply Button see below Connection Panel Disconnect button Connection status Apply Button Appears if you have made any changes in the Control Area WorkBench will not allow you to browse to a new tab in the Main Navigation with unapplied changes to your configuration Help Panel Wiringdiagrams explanations and helpful tips will automati cally appear in this panel as you configure the unit ...

Page 14: ...mmed modes Relays Configure the 3 relay outputs These may be driven from one or more setpoints or directly from one of the digital input pins Cloud Transfer Configure your data logging interval set the time and select which channels are sent to the Cloud Data Viewer View and analyze your live data and down load it to your computer Plugins Plugins are small programs which are loaded into the Nimbus...

Page 15: ...tput open collector G Digital inputs D RS485 Port H Power supply HV shown E Analog inputs 7 2 Serial Port RS485 D and RS232 F See 7 1D 7 1F RS485 Port Unit Top The serial terminal on the top side of the unit can be wired for RS485 as shown R232 Display Port Unit Bottom The serial terminal on the bottom side of the unit can be wired for RS232 as shown 11 12 13 14 15 10 11 12 TX TX COM RS485 11 12 1...

Page 16: ... AC 7 4 Digital Input G See 7 1G The Nimbus IoT has four Digital Inputs A D which can be con figured and scaled using Define WorkBench from the Digital Inputs tab as per the list below Status active inactive can be read by a SCADA system as a general digital input Counter up to 10KHz or 100Hz Debounced Frequency up to 10KHz Flow count up to 10KHz Flow rate up to 10KHz RPM up to 10KHz Output Select...

Page 17: ...Inputs can be configured in software to be either Sinking active low input or Sourcing active high input The diagrams in this manual are for Sinking wiring which is the default configuration To view Sourcing wiring please refer to the help information provided in Define WorkBench Connection example for digital inputs A D using excitation from Nimbus IoT Reed Switch or Relay Contact 3 wire Proximit...

Page 18: ...01 1104 Copyright 2019 Define Instruments 18 7 5 Power Supply See 7 1H Wire your power supply for or 24V DC supply low volt age or 85 265V AC supply high voltage as shown 85 265V DC 28 29 85 265V AC 28 29 22 30V DC ...

Page 19: ...i model The Radio status LED indicates the status of the wireless link Green Off Red On Not connected idle Green Red Toggling Scanning for networks Orange Flashing Trying to connect in Access Point Mode Green On Red Off Station Connected Orange On Access Point Connected Green flashing Connected to WiFi waiting for IP Note See 2 1 WiFi Operating Modes for more information on Sation Mode and Access ...

Page 20: ...n 8 1 Current Input Range 0 20mA 4 20mA Input impedance 150Ω Maximum over range protected by PTC to 24V DC Accuracy 0 1 FSO max Linearity repeatability 0 1 FSO max Channel separation 0 001 max Ambient drift 0 003 C FSO typical RF immunity 1 effect FSO typical 0 4 20mA DC is the most commonly used analog signal in industry and is universally accepted As a current loop it is unaffected by voltage dr...

Page 21: ...2 000V Power supply ACCS 420 L Loop powered 15 36V DC Self powered Overload continuous ACCS 420 175 300 400A respectively ACCS 420 L 80 120 200A respectively Accuracy 1 of full scale Response time 250ms 10 90 Frequency 50 60Hz The Nimbus IoT accepts input from a Define Instruments AC current sensor Set the jumper on the top of the current sensor to the desired current range as shown below AC curre...

Page 22: ...651 41199 1198 41200 1199 Ch5 40653 652 40654 653 41201 1200 41202 1201 Ch6 40655 654 40656 655 41203 1202 41204 1203 Ch7 40657 656 40658 657 41205 1204 41206 1205 Ch8 40659 658 40660 659 41207 1206 41208 1207 Ch9 40661 660 40662 661 41209 1208 41210 1209 Ch10 40663 662 40664 663 41211 1210 41212 1211 Ch11 40665 664 40666 665 41213 1212 41214 1213 Ch12 40667 666 40668 667 41215 1214 41216 1215 Ch1...

Page 23: ...6 529 41809 1808 41810 1809 CounterD 40531 530 40526 531 41811 1810 41812 1811 Totalizers Total1 40289 288 40290 289 41569 1569 41570 1569 Total2 40291 290 40292 291 41571 1570 41572 1571 Total3 40293 292 40294 293 41573 1572 41574 1573 Total4 40295 294 40296 295 41575 1574 41576 1575 Total5 40297 296 40298 297 41577 1576 41578 1577 Total6 40299 298 40300 299 41579 1578 41580 1579 Total7 40301 300...

Page 24: ...he real time clock backup needs to be replaced Contact our service center for further instruction Power LED stays red continuously If the power LED stays red continuously this indicates an in ternal error which will need to be assessed by the manufac turer Please return the Nimbus IoT to the manufacturer for analysis and repair Cannot power up unit Check the power supply connections and supply ran...

Page 25: ...on Basic Standard Test Value Performance Criteria Conducted RF IEC 61000 4 6 3V 150kHz to 80MHz Meets Criterion A Burst IEC 61000 4 4 1kV 5 50ns 5kHz 1kV 5 50ns 100kHz Meets Criterion A Note 1 Meets NAMUR NE 21 recommendation Surge IEC 61000 4 5 1kV L E Meets Criterion A Note 1 Immunity AC Power Phenomenon Basic Standard Test Value Performance Criteria Conducted RF IEC 61000 4 6 3V 150Khz to 80Mhz...

Page 26: ...its Performance Criterion B During testing temporary degradation or loss of performance or function which is self recovering Performance Criterion C During testing temporary degradation or loss of function or performance which requires operator intervention or system reset occurs Note 1 EN61326 1 calls for a Criterion B pass unit exceeds this by meeting Criterion A ...

Page 27: ...NIM2 MAN 19V01 1104 Copyright 2019 Define Instruments 27 ...

Page 28: ...x 245 Westpark Village Auckland 0661 New Zealand Ph 64 9 835 1550 Fax 64 9 835 1250 sales defineinstruments co nz www defineinstruments com United States Dallas TX Ph 214 926 4950 sales defineinstruments com www defineinstruments com Nimbus IoT Document Revision Code NIM2 MAN 19V01 Date Code 191105 ...

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