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NX12 

Micro GSM RTU 

 

© Nortech Management Ltd, United Kingdom 

 

Page 17 of 25

 

 

PCB Ref. 

Pin 

Function  

Comment 

 

 

 

 

SK2 

- 

Micro USB  

 

SK3 

- 

GSM SMA antenna connector 

 

SK4 

- 

SIM card carrier 

 

 

 

 

 

TB4 

1 

Not connected 

 

TB4 

2 

Digital Input #8 

 

TB4 

3 

Digital Input #7 

 

TB4 

4 

Digital Input #6 

 

TB4 

5 

Digital Input #5 

 

TB4 

6 

Digital Input #4 

 

TB4 

7 

Digital Input #3 

 

TB4 

8 

Digital Input #2 

 

TB4 

9 

Digital Input #1 

 

TB4 

10 

Common 

 

 

 

 

 

TB2 

1 

Not connected 

 

TB2 

2 

Digital Input #16 

 

TB2 

3 

Digital Input #15 

 

TB2 

4 

Digital Input #14 

 

TB2 

5 

Digital Input #13 

 

TB2 

6 

Digital Input #12 

 

TB2 

7 

Digital Input #11 

 

TB2 

8 

Digital Input #10 

 

TB2 

9 

Digital Input #9 

 

TB2 

10 

Common 

 

 

 

 

 

TB3 

1 

Do not use 

 

TB3 

2 

Analogue Input #8 

 

TB3 

3 

Analogue Input #7 

 

TB3 

4 

Analogue Input #6 

 

TB3 

5 

Analogue Input #5 

 

TB3 

6 

Analogue Input #4 

 

TB3 

7 

Analogue Input #3 

 

TB3 

8 

Analogue Input #2 

 

TB3 

9 

Analogue Input #1 

 

TB3 

10 

Common 

 

 

 

 

 

Содержание NX12

Страница 1: ... Nortech Management Ltd United Kingdom August 2018 www nortechonline co uk Doc ref D_002333 NX12 Micro GSM RTU USER MANUAL Version 1 8 ...

Страница 2: ...r a particular purpose NML may make changes or improvements in the software equipment or specifications described in this document at any time and without notice These changes may be incorporated in new releases of this document This publication could contain technical inaccuracies or typographical errors NML shall not be liable for any damages including but not limited to consequential indirect o...

Страница 3: ...12 RTU Firmware Functions 9 4 1 Clock 9 4 2 Inputs Outputs 9 4 3 Auxiliary Supply On Off 9 4 4 Binary Inputs 9 4 5 Counter Inputs 10 4 6 Analogue Inputs 10 4 7 Output Channels 11 4 8 RS485 Modbus 11 4 9 RTU Communication Events 11 4 10 Data Log Sizes 11 4 11 Input monitoring during iHost calls 11 4 12 Connection between the RTU and iHost 11 4 13 Reconfiguration of the RTU settings 12 5 NX12 RTU Op...

Страница 4: ... Digital Inputs 18 6 7 2 Analogue Inputs 19 6 7 3 Output Channels 20 6 8 Enclosure and mounting 21 6 8 1 DIN Rail option 21 6 8 2 Enclosure option 21 7 Maintenance 22 7 1 Technical assistance 22 7 2 Communications test 22 7 3 I O tests 22 7 4 Replacing the Battery 22 7 5 Recycling 23 8 Specification Data 24 8 1 General 24 8 2 AC powered units 24 8 3 DC powered units 24 8 4 EMC 25 8 5 Environmental...

Страница 5: ...tional guidelines 1 3 Notices Battery Do not attempt to charge the battery risk of explosion Do not short circuit crush disassemble or heat above 100 C incinerate or expose contents to water AC Supply only applies to AC powered models Isolate from Mains before removing cover 100 240V AC 50 60Hz 100mA rated current DC Supply only applies to DC powered models 12 24V DC 500mA rated current Disposal B...

Страница 6: ...assage Indicator monitoring 2 2 Central iHost User Interface The NX12 is remotely monitored from the Nortech iHost system Users access iHost via a unique username and password The iHost system stores and displays equipment status and alarm data along with related event history and statistics It also provides remote NX12 configuration tools Data is displayed in lists record details maps diagrams ta...

Страница 7: ...is off Suitable batteries and replacements are available from Nortech 3 2 Battery Operation The NX12 monitors its auxiliary power supply When the auxiliary supply is lost provided a battery is connected the unit will continue to operate as follows Condition Behaviour First 1 minute after loss of auxiliary supply Normal operation Modem is switched off once the loss of supply is reported to the Host...

Страница 8: ...he RTU and to inspect the archived logs The principle use of the FSK is to set the connection details that enable communication between the RTU and the iHost system via a mobile network This entails configuring the SIM card s within the RTU Once connection has been established the NX12 RTU may be reconfigured remotely from the iHost system The NX FSK is described in a separate document ...

Страница 9: ...ry supply line is monitored The default setting is to date time stamp changes of state loss restoration and to immediately report them to the iHost system A configurable debounce timer can be used to extend the period that the auxiliary supply must change state before an event is logged and reported 4 4 Binary Inputs The following features are supported and remotely configured for each input indiv...

Страница 10: ...ideal conditions the processor detects changes of state within 10ms 4 6 Analogue Inputs The following features are supported and remotely configured for each input individually Enabled The input is monitored Level An 8 bit value The Level is reported to iHost during every communication Routine Datalogging Yes Take a date time stamped routine level reading at the frequency specified 1 min to 24 hou...

Страница 11: ...st system Communication failures are date time stamped logged and reported to the iHost system The PCB temperature within the RTU is also reported to the iHost system 4 10 Data Log Sizes Data logs are stored in non volatile memory and include local date time stamps Binary Input Log 1024 date time stamped entries Counter Input Log 1024 date time stamped entries Analogue Input Log 1024 date time sta...

Страница 12: ...iguration of the RTU settings The operational behaviour of the RTU including which inputs are enabled and how data is reported and stored is configurable from the iHost system and hence does not require a site visit When an iHost User makes changes to these settings the new settings will be loaded into the RTU during the next contact between the iHost system and the RTU ...

Страница 13: ...directly by the modem 5 3 RTU connection to the iHost system The NX12 RTU connects to the iHost system when An event that is configured to initiate a connection occurs The Next Routine Call date time is reached or exceeded The user presses the test button PCB identifier SW1 A configurable Routine Health Check Interval is configured by the iHost system Typically this is set between 1 hour and 3 hou...

Страница 14: ...ech Management Ltd United Kingdom Page 14 of 25 Failed communication attempts are date time stamped by the RTU along with the reason for the failure These logs are reported to the iHost system upon the next successful contact ...

Страница 15: ...eps must be completed in the order set out below 1 Configure the NX12 prior to installation this may be done at the factory 2 Connect the external equipment to be monitored to the I O terminals on the NX12 3 Connect the auxiliary power supply do not switch it on yet 4 Connect the battery if one is required 5 Secure the NX12 lid for units with an enclosure 6 Switch on auxiliary power Confirm that t...

Страница 16: ...20mA factory option for 0 10V Output channels can switch up to 100mA NX12 Terminal Blocks Sockets Plugs SK2 TB4 TB2 TB1 TB5 TB3 SK4 TB6 SK3 SW1 PL2 H1 LED 1 LED 5 SK1 X PL1 TB7 Pin 1 Pin 1 Pin 1 Pin 1 Pin 1 Pin 1 Pin 1 X X 6 6 PCB Connections PCB Ref Pin Function Comment TB7 1 AC Supply Live 110 230V AC Unit is factory set as either AC powered or DC powered unit TB7 2 AC Supply Neutral TB6 1 DC su...

Страница 17: ...igital Input 3 TB4 8 Digital Input 2 TB4 9 Digital Input 1 TB4 10 Common TB2 1 Not connected TB2 2 Digital Input 16 TB2 3 Digital Input 15 TB2 4 Digital Input 14 TB2 5 Digital Input 13 TB2 6 Digital Input 12 TB2 7 Digital Input 11 TB2 8 Digital Input 10 TB2 9 Digital Input 9 TB2 10 Common TB3 1 Do not use TB3 2 Analogue Input 8 TB3 3 Analogue Input 7 TB3 4 Analogue Input 6 TB3 5 Analogue Input 5 T...

Страница 18: ...t 4 TB5 7 Digital Output 3 TB5 8 Digital Output 2 TB5 9 Digital Output 1 TB5 10 Common TB1 1 RS485 TX RX ive TB1 2 RS485 TX RX ive TB1 3 RS485 wake up Not implemented TB1 4 RS485 Ground Common PL1 1 6 Programming port Do not use H1 1 16 Expansion header SK1 Not used 6 7 Wiring Connection Diagrams 6 7 1 Digital Inputs Connecting the RTU to a volt free dry contact input Input n Common RTU Digital In...

Страница 19: ...Analogue Inputs Connecting the RTU to a 2 wire sensor 4 20mA Input n 18V RTU Analogue Input Terminals Transducer Sensor Connecting the RTU to a 4 wire sensor 4 20mA Input n Common RTU Analogue Input Terminals Transducer Sensor Sensor 4 20mA output signal Sensor power supply 18V ...

Страница 20: ...ut Channels Outputs switch 100mA Example connecting the RTU to an external relay Output n Common RTU Output Terminals External Relay V 0V DC Supply Equipment Controlled Connect dotted line when additional back emf protection required when switching inductive loads for example relays ...

Страница 21: ...losure and mounting 6 8 1 DIN Rail option NX12 supplied as a DIN rail mountable unit 6 8 2 Enclosure option NX12 supplied in an IP54 polycarbonate enclosure 180 0mm 182 0mm 165 0mm 7 5mm FRONT OF ENCLOSURE 90 mm DEPTH REAR OF ENCLOSURE SHOWING 4 FIXING HOLES 167 0mm Ø 4 5mm 7 5mm ...

Страница 22: ... the RTU communicates successfully with the iHost system 7 3 I O tests For each input connected to the NX12 confirm that the correct status data and the desired date time events are being reported to the iHost system 7 4 Replacing the Battery When replacement is necessary contact Nortech for a replacement part There are two types of battery depending on the PCB hardware version 2 pin battery conne...

Страница 23: ... Ltd United Kingdom Page 23 of 25 7 5 Recycling After replacing the internal battery dispose of the old lithium battery responsibly in accordance with local rules NX12 units can be returned to Nortech for recycling at the end of their life ...

Страница 24: ... thresholds Additional I O Additional I O is achieved via the RS485 Modbus interface Local Serial Data Modbus over 3 wire RS485 Remote Indication GSM modem with SMA antenna NEXUS protocol supported on the iHost system 8 2 AC powered units The NX12 requires a two 2 wire AC supply Connect with the correct polarity It is the users responsibility to ensure that local wiring regulations are complied wi...

Страница 25: ...000 4 6 Conducted RF EN61000 4 8 Power Frequency Magnetic Field EN61000 4 11 Voltage Dips and Interruptions 8 5 Environmental Enclosure Rating IP54 Humidity 0 95 non condensing Temperature PCB 20 to 70 degrees C Battery 60 to 85 degrees C GSM modem 40 to 85 degrees C Storage The NX12 should be stored in an environment that is dry corrosive free and not in direct sunlight Correct storage prevents p...

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