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NX12
Nortech NX12 User Manual
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NX12
Micro GSM RT
U
© Nortech Manag
ement Ltd, Uni
ted King
dom
Page
14
of
25
Failed communi
cation attempts ar
e date/time s
tamped by the RTU,
along wi
th the
reason for the fai
lure. These logs a
re reported to the i
Host system up
on the next
successful contact.
13
15
Table of Contents
Default Chapter
3
Table of Contents
3
1 Safety & Notices
5
Safety
5
Qualified Users
5
Notices
5
Versions
5
2 NX12 RTU Description
6
Applications
6
Central Ihost User Interface
6
Communications
6
3 NX12 RTU Set-Up Requirements
7
Auxiliary Power Supply
7
Battery Operation
7
USB Port / Field Support Kit
7
4 NX12 RTU Firmware Functions
9
Clock
9
Inputs / Outputs
9
Auxiliary Supply On/Off
9
Binary Inputs
9
Counter Inputs
10
Analogue Inputs
10
Output Channels
11
RS485 Modbus
11
RTU / Communication Events
11
Data Log Sizes
11
Input Monitoring During Ihost Calls
11
Connection between the RTU and Ihost
11
Reconfiguration of the RTU Settings
12
5 NX12 RTU Operation
13
Cold Start
13
LED Indicators
13
RTU Connection to the Ihost System
13
Call Retry Algorithm
13
6 Installation
15
Qualified Users
15
AC Powered Models
15
DC Powered Models
15
Procedure
15
Circuit Board Layout
15
PCB Connections
16
Wiring Connection Diagrams
18
Digital Inputs
18
Analogue Inputs
19
Output Channels
20
Enclosure and Mounting
21
DIN Rail Option
21
Enclosure Option
21
7 Maintenance
22
Technical Assistance
22
Communications Test
22
I/O Tests
22
Replacing the Battery
22
Recycling
23
8 Specification Data
24
General
24
AC Powered Units
24
DC Powered Units
24
Emc
25
Environmental
25
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Nortech NX12 Specifications
General
Brand
Nortech
Model
NX12
Category
Control Unit
Language
English
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