Yokogawa M1115NL User Manual

User’s Manual

IM 22B01D01-01E-A

M1115NL Wireless I/O

Yokogawa Corporation of America 2 Dart Road, Newnan, Georgia U.S.A. 30265 Tel: 1-800-258-2552 Fax: 1-770-254-0928

IM 22B01D01-01E-A

©Copyright July 2009

1st Edition

Thank you for your selection of the M1115NL I/O Module. We trust it will give you many years of valuable service.



Incorrect termination of supply wires may cause internal damage and will void warranty. To ensure your M1115NL module enjoys a long life, double check ALL your connections with the user manual before turning the power on.



To comply with FCC RF Exposure requirements in section 1.1310 of the FCC Rules, antennas used with this device must be installed to provide a separation distance of at least 20 cm from all persons to satisfy RF exposure compliance. Avoid:

• Operating DAWN WIreless the transmitter when someone is within 20 cm of the antenna

• Operating the transmitter unless all RF connectors are secure and any open connectors are properly termi-

nated

• Operating the equipment near electrical blasting caps or in an explosive atmosphere

All equipment must be properly grounded for safe operations.

All equipment should be serviced only by a qualied technician

ATTENTION!

CAUTION:



Exposure to RF energy is an important safety consideration. The FCC has adopted a safety standard for human exposure to radio frequency electromagnetic energy emitted by FCC regulated equipment as a result of its ac-

tions in Docket 93-62 and OET Bulletin 65 Edition 97-01.

SAFETY Notice:

GNU Free Documentation Licence:

Copyright (C) 2009 DAWN WIreless Technologies. DAWN WIreless Technologies is using a part of Free Software code under the GNU General Public License in operating the “M1115NL” product. This General Public License applies to most of the Free Software Foundation’s code and to any other program whose authors commit by using it. The Free Software is copyrighted by Free Software Foundation, Inc. and the program is licensed “As is” without warranty of any kind. Users are free to contact DAWN WIreless Technologies at the following Email Address:sales@dawnwirelesstech.com for instructions on how to obtain the source code used for the 905U-2. A copy of the license is included in Appendix F: “GNU Free Document Licence”.



This M1115NL module uses the “E2_900M Wireless Data Modem” radio and complies with Part 15.247 of the

FCC Rules. Operation is subject to the following two conditions:

This device may not cause harmful interference and must accept any interference received, including interference that may cause undesired operation.

This device must be operated as supplied by DAWN WIreless. Any changes or modications made to the device without the written consent of DAWN WIreless may void the user’s authority to operate the device.

This device must be installed by professional installers in compliance with 47 CFR Part 15 Subpart C Section

15.204 and 15.205, who will be responsible for maintaining EIRP no greater than 36 dBm in accordance with 47 CFR Part 15 Subpart C Section 15.247 (b)(2)(4).

In accordance with 47 CFR Part 15 Subpart C Section 15.204 only the following antenna/coax cable kits can be

used.

FCC Notice:

Manufacturer Model Number Coax Kit Net

YOKOGAWA SG-900-6 CC10/900 5dBi Gain

YOKOGAWA SG-900-6 CC20/900 2dBi Gain

YOKOGAWA SG-900EL CC10/900 2dBi Gain

YOKOGAWA SG-900EL CC20/900 -1dBi Loss

YOKOGAWA YU6/900 CC20/900 4dBi Gain

• Part 15 –This device has been tested and found to comply with the limits for a Class A digital device, pursuant to Part15 of the FCC rules (Code of Federal Regulations 47CFR Part 15). Operation is subject to the condition that this device does not cause harmful

interference.

• Notice Any changes or modications not expressly approved by DAWN WIreless could void the user’s authority to operate this equipment.

This Device should only be connected to PCs that are covered by either FCC DoC or are FCC certied.



DAWN Wireless products are designed to be used in industrial environments, by experienced industrial engineering personnel with adequate knowledge of safety design considerations.

DAWN Wireless radio products are used on unprotected license-free radio bands with radio noise and interference. The products are designed to operate in the presence of noise and interference, however in an extreme case, radio noise and interference could cause product operation delays or operation failure. Like all industrial

electronic products, DAWN Wireless products can fail in a variety of modes due to misuse, age, or malfunction.

We recommend that users and designers design systems using design techniques intended to prevent personal injury or damage during product operation, and provide failure tolerant systems to prevent personal injury or

damage in the event of product failure. Designers must warn users of the equipment or systems if adequate protection against failure has not been included in the system design. Designers must include this Important

Notice in operating procedures and system manuals.

These products should not be used in non-industrial applications, or life-support systems, without consulting

DAWN Wireless rst.

• A radio license is not required in some countries, provided the module is installed using the aerial and equipment conguration described in the M1115NL Installation Guide. Check with

your local distributor for further information on regulations.

• Operation is authorized by the radio frequency regulatory authority in your country on a non-protection basis. Although all care is taken in the design of these units, there is no responsibility taken for sources of external interference. Systems should be designed to be tolerant of these operational delays.

• To avoid the risk of electrocution, the aerial, aerial cable, serial cables and all terminals of the M1115NL module should be electrically protected. To provide maximum surge and lightning protection, the module should be connected to a suitable earth and the aerial, aerial cable, serial cables and the module should be installed as recommended in the In

stallation Guide

• To avoid accidents during maintenance or adjustment of remotely controlled equipment, all equipment should be rst disconnected from the M1115NL module during these adjustments.

Equipment should carry clear markings to indicate remote or automatic operation. E.g. “This equipment is remotely controlled and may start without warning. Isolate at the switch board before attempting adjustments.”

• The M1115NL module is not suitable for use in explosive environments without additional protection.

• The M1115NL operates unlicensed Radio frequencies and proprietary protocols to communicate over the radio. Nevertheless, if your system is not adequately secured, third parties may be able to gain access to your data or gain control of your equipment via the radio link. Before deploying a system make sure you have considered the security aspects of your installation carefully.

IMPORTANT Notice:

Limited Lifetime Warranty, Disclaimer, and Limitation of Remedies

DAWN Wireless products are warranted to be free from manufacturing defects for the “serviceable lifetime” of the

product. The “serviceable lifetime” is limited to the availability of electronic components. If the serviceable life is

reached in less than three years following the original purchase from DAWN Wireless, DAWN Wireless will replace

the product with an equivalent product if an equivalent product is available.

This warranty does not extend to:

• Failures caused by the operation of the equipment outside the particular product’s specication, or

• Use of the module not in accordance with this User Manual, or

• Abuse, misuse, neglect or damage by external causes, or

• Repairs, alterations, or modications undertaken other than by an authorized Service Agent.

DAWN Wireless liability under this warranty is limited to the replacement or repair of the product. This warranty

is in lieu of and exclusive of all other warranties. This warranty does not indemnify the purchaser of products for

any consequential claim for damages or loss of operations or prots and DAWN Wireless is not liable for any consequential damages or loss of operations or prots resulting from the use of these products. DAWN Wireless is

not liable for damages, losses, costs, injury or harm incurred as a consequence of any representations, warranties

or conditions made by DAWN Wireless or its representatives or by any other party, except as expressed solely in this

document.

Table of Conents

INTRODUCTION ......................................................................................................................................... 11

1.1 Overview......................................................................................................................................................................................11

1.2 Module Structure .........................................................................................................................................................................13

1.3 Getting Started ............................................................................................................................................................................14

CHAPTER 2 - INSTALLATION ...................................................................................................................15

2.1 General .......................................................................................................................................................................................15

2.2 Power/Supply .............................................................................................................................................................................15

2.2.1 Requirements .......................................................................................................................................................................15

2.2.2 Expansion I/O Supply ...........................................................................................................................................................17

2.2.3 Internal I/O ............................................................................................................................................................................17

2.2.4 Grounding .............................................................................................................................................................................18

2.3 Radio...........................................................................................................................................................................................19

2.3.1 900 MHz Spread Spectrum radio .........................................................................................................................................19

2.3.2 Meshing capability ................................................................................................................................................................19

2.4 Antenna ......................................................................................................................................................................................20

Dipole and Collinear antennas. ..................................................................................................................................................22

Yagi antennas. ............................................................................................................................................................................23

2.5 Connections ...............................................................................................................................................................................24

2.5.1 Bottom panel connections ....................................................................................................................................................24

Ethernet port ..............................................................................................................................................................................24

USB Device Port for conguration .............................................................................................................................................24

RS-232 port ...............................................................................................................................................................................24

RS-485 port with Modbus Support. ...........................................................................................................................................25

2.5.2 Side Access Conguration Panel .............................................................................................................................................25

“Factory Boot” switch ..................................................................................................................................................................25

USB Host port............................................................................................................................................................................26

Dipswitches ...............................................................................................................................................................................26

Front panel connections ............................................................................................................................................................27

2.5.3 Digital Inputs .........................................................................................................................................................................28

2.5.4 Pulsed Inputs ........................................................................................................................................................................29

2.5.5 Digital Outputs (Pulsed Outputs) ..........................................................................................................................................30

Digital Output Fail Safe Status ..................................................................................................................................................30

2.5.6 Analog Inputs ........................................................................................................................................................................32

Differential Current Inputs (AIN 1 & 2 only) ...............................................................................................................................32

Single Ended Current Inputs (AIN 3 & 4 only) ...........................................................................................................................33

Single Ended Voltage Inputs .....................................................................................................................................................34

2.5.7 Analog Outputs .........................................................................................................................................................................35

CHAPTER 3 - OPERATION ........................................................................................................................ 36

3.1 Overview.....................................................................................................................................................................................36

3.2 Indications..................................................................................................................................................................................36

3.2.1 Front Panel Indications .........................................................................................................................................................36

3.2.2 Boot Sequence “PWR” LED Indications ...............................................................................................................................36

3.2.3 Input / Output Indications......................................................................................................................................................37

Digital Inputs ..............................................................................................................................................................................37

Digital Outputs ...........................................................................................................................................................................37

Analog Inputs .............................................................................................................................................................................37

Analog Outputs ..........................................................................................................................................................................37

3.2.4 Ethernet Indications ..............................................................................................................................................................38

3.3 System Design ............................................................................................................................................................................39

3.3.1 Radio Channel Capacity .......................................................................................................................................................39

Dual Band Operation .................................................................................................................................................................39

3.3.2 Radio Path Reliability ...........................................................................................................................................................39

3.3.3 Design for Failures ...............................................................................................................................................................40

3.3.4 Indicating a Communications Problem .................................................................................................................................41

Fail-to-transmit alarm .................................................................................................................................................................41

Fail-to-receive alarm ..................................................................................................................................................................41

3.3.5 Testing and Commissioning ..................................................................................................................................................41

3.4 WIBMesh ....................................................................................................................................................................................42

CHAPTER 4 - CONFIGURATION ............................................................................................................... 43

4.1 Module Conguration ...............................................................................................................................................................43

4.2 First time Conguration ............................................................................................................................................................44

4.2.1 Default IP Address ................................................................................................................................................................44

4.2.2 Accessing Conguration .......................................................................................................................................................44

4.2.3 Power up the M1115NL module. ...........................................................................................................................................45

4.2.4 Over the Air Web Based Conguration .................................................................................................................................47

4.3 Module Information Web Page .................................................................................................................................................48

4.4 System Tools Web page ...........................................................................................................................................................49

System Log File .........................................................................................................................................................................49

Reading Conguration File ........................................................................................................................................................49

Writing Conguration File ..........................................................................................................................................................49

Firmware Upgrade – Web Page ................................................................................................................................................49

Firmware Upgrade – USB .........................................................................................................................................................49

4.5 Feature Licence Keys Web Page .............................................................................................................................................51

4.6 Address Map ..............................................................................................................................................................................51

4.6.1 Standard M1115NL I/O (Basic I/O) .......................................................................................................................................52

4.7 Serial Expansion I/O ..................................................................................................................................................................52

4.7.1 Adding modules ....................................................................................................................................................................52

4.7.2 115S Expansion I/O Memory Map ........................................................................................................................................53

CHAPTER 5 - DIAGNOSTICS .................................................................................................................... 54

5.1 IO Diagnostics ...........................................................................................................................................................................54

5.1.1 Modbus Error Registers........................................................................................................................................................55

5.2 Connectivity ...............................................................................................................................................................................55

LQI (Link Quality Indication) ......................................................................................................................................................56

5.3 Network Diagnostics .................................................................................................................................................................57

Ping ...........................................................................................................................................................................................57

Trace Route ...............................................................................................................................................................................58

5.4 Network Statistics .....................................................................................................................................................................59

5.5 Monitor Radio Comms ..............................................................................................................................................................61

5.6 Statistics.....................................................................................................................................................................................63

CHAPTER 6 - SPECIFICATIONS ............................................................................................................... 64

6.1 Specications ............................................................................................................................................................................64

APPENDIX A: DBM TO MW CONVERSION TABLE ................................................................................ 66

APPENDIX B: I/O STORE REGISTERS ...................................................................................................67

“Output Coils” ............................................................................................................................................................................67

“Input Bits” .................................................................................................................................................................................67

“Input Registers” ........................................................................................................................................................................68

“Holding Registers” ....................................................................................................................................................................69

APPENDIX C: EXPANSION I/O STORE REGISTERS ............................................................................. 70

I/O store for a 115S-11 Expansion I/O module ..........................................................................................................................71

I/O store for a 115S-12 Expansion I/O module ..........................................................................................................................72

I/O store for a 115S-13 Expansion I/O module ..........................................................................................................................73

APPENDIX D: MODBUS ERROR CODES ................................................................................................74

APPENDIX E: WEB PAGE CONFIGURATION ......................................................................................... 75

Network Conguration ....................................................................................................................................................................75

Mesh .................................................................................................................................................................................................77

IP Routing .........................................................................................................................................................................................79

Radio Settings .................................................................................................................................................................................80

Mesh Fixed Routes ..........................................................................................................................................................................81

Example #1................................................................................................................................................................................81

Example #2................................................................................................................................................................................82

WIBMesh Conguration ..................................................................................................................................................................83

WIBMesh Mappings .........................................................................................................................................................................85

Write Mappings (Writing Local I/O to remote I/O) ......................................................................................................................85

Read Mappings (Read remote I/O and storing it locally) ...........................................................................................................87

Gather/Scatter Write Mappings .................................................................................................................................................88

Sensitivity Block.........................................................................................................................................................................89

M1115NL Module I/O Registers .................................................................................................................................................90

115S Serial Expansion Modules I/O Registers ..........................................................................................................................91

Fail Safe Conguration ...................................................................................................................................................................93

“Invalid” register state ........................................................................................................................................... 93

Fail Safe Blocks ........................................................................................................................................................................94

Serial Conguration ........................................................................................................................................................................95

Modbus TCP to RTU Gateway ..................................................................................................................................................95

Expansion I/O ............................................................................................................................................................................97

I/O Conguration .............................................................................................................................................................................98

Analog Inputs .............................................................................................................................................................................99

Calculating Span ................................................................................................................................................................100

Calculating Zero .................................................................................................................................................................100

Analog Outputs ................................................................................................................................................................................101

Digital Input..............................................................................................................................................................................102

Digital Output ...........................................................................................................................................................................102

Pulsed Outputs ........................................................................................................................................................................103

Modbus TCP Transfer ...................................................................................................................................................................103

Modbus TCP Conguration .....................................................................................................................................................106

Modbus TCP Mappings ...........................................................................................................................................................107

APPENDIX F: GNU FREE DOCUMENT LICENCE .................................................................................108

TABLE OF FIGURES

Figure 1 – Module Structure ...........................................13

Figure 2 – Power Connectors .........................................15

Figure 3 – Supply Connections ......................................15

Figure 4 – Expansion I/O power & RS485......................17

Figure 5 - Earthing ..........................................................18

Figure 6 -Wrapping Coax Connections ..........................21

Figure 7 – Collinear Antenna mounting ..........................22

Figure 8 - Yagi Antenna Mounting ..................................23

Figure 9 – Bottom Panel Connections ............................24

Figure 10 – RS485 Connections ....................................25

Figure 11 – Side Access Panel .......................................25

Figure 12 – Front Panel Connections .............................27

Figure 13 – Digital Input Wiring ......................................28

Figure 14 – Pulsed Input Wiring .....................................29

Figure 15 – Digital Output Wiring ...................................30

Figure 16 – Digital Output Failsafe Times ......................31

Figure 17 - Fail-Safe State .............................................31

Figure 18 – Differential Current Inputs ...........................32

Figure 19– Single Ended Current Inputs ........................33

Figure 20 – Voltage Inputs..............................................34

Figure 21 – Analog Outputs ............................................35

Figure 22 - Boot Sequence.............................................36

Figure 23 - Installation ....................................................43

Figure 24 – Conguration Software ................................43

Figure 25 – Network Settings .........................................45

Figure 26 - Ping ..............................................................45

Figure 27 – Main Welcome Screen ................................46

Figure 28 -Over the air Conguration .............................47

Figure 29 – Module Information......................................48

Figure 30 – System Tools ...............................................49

Figure 31 - Firmware Upgrade LED Indications .............50

Figure 32 - Feature License Keys ..................................51

Figure 33- I/O Diagnostics ..............................................54

Figure 34 - Connectivity..................................................55

Figure 35 – Network Diagnostics....................................57

Figure 36 – Trace Route .................................................58

Figure 44 - Mesh Conguration ......................................77

Figure 45 - IP Routing ....................................................79

Figure 46 – Radio Conguration Screen ........................80

Figure 47 - Mesh Fixed Route #1 ...................................81

Figure 48 - Mesh Fixed Route#2 Routing Rules ............82

Figure 49 - Mesh Fixed Route #2 ...................................82

Figure 50 – Mesh Fixed Route #2 Routing Rules...........82

Figure 51 – WIBMesh Conguration Screen ..................83

Figure 52 – WIBMesh Mappings ....................................85

Figure 53 – Write Mappings ...........................................85

Figure 54 – Read Mappings ...........................................87

Figure 55 – Gather/Scatter Mappings ............................88

Figure 56 – Sensitivity Block ..........................................89

Figure 57- Invalid Register State ....................................93

Figure 58 – Fail Safe Blocks...........................................94

Figure 59– Serial Port Conguration ..............................95

Figure 60 – Modbus TCP to RTU ...................................96

Figure 61 – I/O Conguration .........................................98

Figure 62 – Analog Input Conguration ..........................99

Figure 63 – Analog Output Conguration .....................101

Figure 64 – Digital Input Conguration .........................102

Figure 65 – Digital Output Conguration ......................102

Figure 66 – Pulsed Output Conguration .....................103

Figure 67 - Modbus Server ...........................................104

Figure 68 - Modbus Client ............................................104

Figure 69 - Modbus TCP Client Mappings ...................105

Figure 37 – Network Statistics Period ............................59

Figure 38 – Network Statistics ........................................59

Figure 39 – Hourly Statistics...........................................60

Figure 40 –Daily/Weekly Statistics .................................60

Figure 41 - Monitor Comms ............................................61

Figure 42 – Module Statistics .........................................63

Figure 43 – Network Conguration Screen ....................75

Introduction

11. Overview

The M1115NL range of I/O modules has been designed to provide standard “off-the-shelf” telemetry functions, for an economic price. Telemetry is the transmission of data or signals over a long distance via radio or twisted-pair wire cable.

Although the M1115NL Series is intended to be simple in its application, it provides many sophisticated features,

which will be explained in the following chapters.

This manual should be read carefully to ensure that the modules are congured and installed to give reliable performance.

The M1115NL telemetry module extends the functionality provided by the earlier 105U and 905U E-series modules. It provides on-board I/O via a front mounting 20-way connector and has provision for extra expansion modules (DAWN Wireless 115S or MODBUS devices) to be connected using a standard RS485 serial connection.

The module can monitor the following types of signals

• Digital (on/off) signals - Contact Closure or Switch

• Analog (continuously variable) signals – Tank level, Motor speed, temperature, etc

• Pulsed signal - Frequency signal – Metering, accumulated total, rainfall, etc

• Internal Signals – Supply voltage, Supply failure, battery status, etc.

The modules monitor the input signals and transmit the values by radio or Ethernet cabling to another module or mod-

ules that have been congured to receive this information.

The M1115NL radio has been designed to meet the requirements of unlicensed operation for remote monitoring and control of equipment. A radio licence is not required for the M1115NL in many countries.

Input signals that are connected to the module are transmitted and appear as output signals on other modules. A

transmission occurs whenever a “Change-of-State”, “COS” occurs on an input signal. A “Change-of-State” of a digital

or an internal digital input is a change from “off” to “on” or vice-versa.

For an analog input, internal analog input or pulse input rate a “Change-of-State” is a congurable value called “Sensitivity”. The default Sensitivity is 1000 counts (3%) but can be changed in the Sensitivity Block page.

In addition to change-of-state messages, update messages are automatically transmitted on a congurable time ba-

sis. This update ensures the integrity of the system.

Pulse inputs counts are accumulated and the total count is transmitted regularly according to the congured update

time.

The M1115NL modules transmit the input/output data using radio or Ethernet. The data frame includes the “address” of the transmitting module and the receiving module, so that each transmitted message is acted on only by the correct receiving unit. Each message includes error checking to ensure that no corruption of the data frame has occurred due to noise or interference. The module with the correct receiving “address” will acknowledge the message with a return transmission (acknowledgement). If the original module does not receive a correct acknowledgement, it will retry 1 to 5 times (default is 3) before setting the communications fail status of that message. For critical messages, this status can be reected on an output on the module for alert purposes. The module will continue to try to establish communications and retry, each time an update, or change-of-state occurs.

A system can be a complex network or a simple pair of modules. An easy-to-use conguration procedure allows the

user to specify any output destination for each input.

Two versions of the M1115NL are available. The Legacy version provides operation with existing DAWN Wireless I/O devices (905 series and 105 series modules). The second version provides enhanced features, including IP address-

ing, allowing thousands of modules to exist in a system, and allowing automatic routing of messages through repeater stations.

Each M1115NL radio can have up to 24 expansion I/O modules (DAWN Wireless 115S) connected by RS485 twisted pair provided there is sufcient power to power all modules with I/O. Any input signal at any module may be congured

to appear at any output on any module in the entire system.

Modules can be used as repeaters to re-transmit messages on to the destination module. Repeaters can repeat mes-

sages on the radio channel or from the radio channel to the serial channel (and serial to radio). Using Legacy protocol, up to ve repeater addresses may be congured for each input-to-output link. The meshing protocol will automatically

select other stations to act as repeaters if required.

The units may be congured via ethernet using a web browser or via USB port and system conguration software. The web based conguration and software conguration is dened in Chapter 4 - Conguration.

1.2 Module Structure M1115NL

Figure 1 – Module Structure

The M1115NL is made up of a number of basic sections, which all interface with a central Input and output storage

area (I/O Store).

The I/O Data Store provides storage for I/O data as well as providing services to other processes in the system. The I/O Store provides eight different blocks of data - two containing input and output bit data, two containing input and output word data, two containing long-word type data and two containing oating-point data. The two les of each type

in turn support inputs and outputs on the local machine, and data storage for the gateway function of the machine. These les are mapped into the address map as described below. There are other registers values within the database that can be used for system management - these will be discussed later in this manual.

The Radio Interface allows the M1115NL to communicate with other modules within the system using a proprietary

radio protocol called “WIBMesh”. Messages from other M1115NL modules are received by the radio port and used to update the input values in the I/O Data Store. The WIBMesh protocol is an extremely efcient protocol for radio

communications. Radio messages can be sent using exception reporting - that is, when there is a change of an input signal - or by read/write messages. Each message will be comprised of multiple I/O values termed as a “block” of I/O).

There are also update messages, which are sent for integrity purposes. Messages include error checking, with the

destination address sending a return acknowledgment. Up to four attempts are made to transmit the message over each hop of the radio path, if no acknowledgement is received. The WIBMesh protocol is designed to provide reliable

radio communications on an open license-free radio channel.

The On-Board I/O in the form of - 8 discrete I/O, 2 single ended analog inputs, 2 differential analog inputs, and 2 current sourcing analog outputs. Each discrete I/O can function as either a discrete input (voltage free contact input) or

discrete output (transistor output). Each I/O point is linked to separate I/O registers within the I/O Data Store.

There are also a number of Internal I/O that can be accessed from the I/O Data Store. These inputs can be used to

interpret the status of a single module or an entire system

• Battery voltage – The battery terminal voltage displayed as an Analog value.

• Loop Supply – Monitors the +24V DC Analog Loop Supply (ALS), used to power analog current loops and displays

this as an Analog value.

• Expansion Module Volts – Monitors the Supply voltage of the connected expansion modules, displayed as an Analog value.

• RSSI – Will indicate the radio signal level for the selectable address, displayed as a dB level. Note: Only available in Legacy version. Otherwise, refer to Communication diagnostics functions

• Comms Fail – A selectable register can indicate a Communications fail for the selected address. Note: Only avail able in Legacy version. Otherwise, refer to Communication diagnostics functions

Lastly, the Expansion port, which enables 115S expansion I/O modules to be added to the module. Expansion module

I/O is dynamically added to the I/O of the M1115NL by adding an offset to the address.

1.3 Getting Started

Most applications for the M1115NL require little conguration. The M1115NL has many sophisticated features, however if you do not require these features, this section will allow you to congure the units quickly.

First, read Chapter 2 - , “Installation”, which will go through the power supply, antenna/coax connections and any I/O connections.

Power the M1115NL and make an Ethernet connection to your PC (refer to Section 4.2 “First time Conguration”)

Set the M1115NL address settings as per Section 0 ”Network Conguration”

Save the conguration and the M1115NL module is now ready to use.

Chapter 2 - Installation

2.1 General

All M1115NL Series modules are housed in a plastic enclosure with DIN rail mounting, providing options for up to 12 I/O points, and separate power & communications connectors. The enclosure measures 170 x 150 x 33 mm including

connectors. The antenna protrudes from the top

2.2 Power/Supply

Figure 2 – Power Connections

Figure 3 – Supply Connections

2.2.1 Requirements

The M1115NL power supply is a switch-mode supply and will accept a 15 - 30 volt DC power source connected to the “Sup + & Sup -” terminals.

Both Supply and Battery connections have reverse polarity and over voltage protection.

If powered from the “Sup + & Sup -” terminals the Power Supply must be able to supply enough current to power all operations, e.g. Module Quiescent current, Peak Transmit current, Digital and Analog I/O including loop supply, Bat-

tery charging (if applicable), etc.

The recommended “Supply” power source is +24VDC 2Amp (+12VDC 4Amp).

The module can be operated primarily from the supply terminals or in conjunction with a battery connected to the “BAT + & GND” terminals.

If a backup battery is used then the module Supply can have a lower current rating as the Peak current will be supplied by the battery.

To calculate the Power Supply current limit, use the following criteria.

Quiescent Current of the module is 200mA.

Module I/O total is 500mA

Peak Transmit current is 500mA

External Expansion I/O connected is 1000mA Max

Battery charging is 1000mA (Internally limited)

The following table represents the Supply current limit for different requirements

Expansion I/O No Expansion I/O

No Battery tted 2200mA 1200 mA

Battery tted 2700 mA 1700 mA

E.g. If there is a battery connected and no expansion I/O the minimum current needed is 1.7Amps @13.8V this is

because the battery will provide peak current during radio transmissions.

If a backup battery is not connected and I/O modules are required and then the minimum current needed will be

approximately 2.2Amps @13.8V.

This is allowing for 500mA Peak Transmit current and up to 1 amp for expansion I/O

The power supply should be CSA Certied Class 2 approved for normal operation and if being used in Class I Div 2 explosive areas, the power supply must have a Class I Div 2 approval.

The power supply automatically charges a 13.8V Sealed Lead-Acid battery connected to the “BAT+” and “GND”

terminals at up to 1A.

The power supply input and battery charging are hosted on a 4-way terminal on the bottom edge of the module abelled “Supply”.

2.2.2 Expansion I/O Supply

To allow increased I/O Capacity, a second 4-way terminal labelled “Expansion I/O” provides a +12 Volt supply (up to 1A) and RS485 communications for any 115S serial expansion I/O modules.

M1115NL

Figure 4 – Expansion I/O power & RS485

As a guide when using the I/O power connection from the M1115NL, the number of I/O modules is limited to three

115S-11 (using inputs), one 115S-12, or one 115S-13.

If more I/O Modules are required, you will need to calculate the overall current consumption using the following criteria and power the modules from an external supply.

115S Module Static Current drain = 120mA

115S Digital Inputs require 13mA per active input

115S Digital Outputs require 25mA per active output

115S Analog Inputs and Outputs require 50mA per I/O when operating at 20mA

E.g. a single 115S-11 using inputs only has a current consumption of approximately 320mA so you could connect up to three 115S-11 modules to the Expansion port without overloading the on board I/O power supply.

A single 115S-12 using all analog inputs and digital outputs has a current consumption of approximately 720mA so

you could only connect one.

Keep in mind that when calculating the current consumption for the expansion I/O, the maximum available current from the onboard power supply is 1 Amp. If the overall Expansion I/O current consumption is over the 1 Amp maximum an external power source will be required. The M1115NL provides up to 1 Amp for battery charging.

2.2.3 Internal I/O

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The internal Supply voltages can be monitored by reading the Modbus locations below.

The registers can also be mapped to a register or an analog output on another module within the radio network.

30005 Local Supply voltage (8-40V scaling) 30006 Local Battery voltage (8-40V scaling) 30007 Local 24V loop voltage (8-40V scaling) – Internally generated +24V supply used for analog loop

supply. Maximum Current limit is 150mA

30008 115S Supply Voltage (8-40V scaling)

Floating Point Registers 38005 – 38008 also indicate the Supply voltage, Battery Voltage, +24V Supply and 115S Supply voltages but in a voltage scale.

There are no dedicated discrete low voltage alarm indicators however each supply voltage does have a High and a low Setpoint Status which can be used for this type of alarm.

See section 0“Analog Inputs” for details on how to congure these alarms.

2.2.4 Grounding

To provide maximum surge and lightning protection each module should be effectively earthed / grounded via a

“GND” terminal on the module – this is to ensure that the surge protection circuits inside the module are effective. The

module should be connected to the same common ground or earth point as the enclosure “earth” and the antenna mast “earth”.

The M1115NL has a dedicated Earth connection screw on the bottom end plate next to the Supply terminals. All EARTH wiring should be minimum 2mm² - 14 AWG

If using the M1115NL with serial Expansion I/O modules then all expansion modules must have a separate earth con-

nection from the front terminal back to the common earth or ground point. See Figure 5 below

2.3 Radio

The following radio variants are available in the M1115NL dependent on the country of operation.

2.3.1 900 MHz Spread Spectrum radio

The radio operates in the 902-928 MHz ISM band and uses frequency hopping spread spectrum modulation, which

is a method of transmitting radio signals by rapidly switching the carrier among many frequency channels, using a

pseudo random sequence known to both transmitter and receiver as Hop Sets.

There are two Hop sets and each one uses a different pseudo random sequence of radio channels. Each Hop Set is made up of 50 channels, which cycle through to the next channel after each transmission. (Some countries use fewer

channels, e.g. New Zealand).

The receiver is continually scanning all channels in the hop-set and when a valid data packet is heard, it locks on to the channel and receives the data.

A spread-spectrum transmission offers some advantages over a xed-frequency transmission. These are - Spreadspectrum signals are more resistant to narrowband interference, they are difcult to intercept or eavesdrop because

of the pseudorandom transmission sequences and transmissions can share a frequency band with other types of conventional transmissions with minimal interference.

2.3.2 Meshing capability

The DAWN Wireless WIBMesh protocol is based on the “Ad hoc On Demand Distance Vector” (AODV) routing algorithm which is a routing protocol designed for ad hoc networks.

AODV is capable of unicast and multicast routing and is an on demand algorithm, meaning that it builds and maintains

these routes only as long as they are needed by the source devices.

The Protocol creates a table, which shows the connection routes to other device in the system. The Protocol uses

sequence numbers to ensure the routes are kept as current as possible. It is loop-free, self-starting, and can scale to a large numbers of nodes.

See section 3.4 “WIBMesh” for more details on conguration.

2.4 Antenna

The M1115NL module will operate reliably over large distances. The distance that can be reliably achieved will vary with each application and depend on the type and location of antennas, the degree of radio interference, and obstructions (such as hills or trees) to the radio path.

Typical reliable distances are detailed below, however longer distances can be achieved if antennas are mounted in

elevated locations – such as on a hill or on a radio mast.

Using the 900 MHz Spread Spectrum radio the distances achievable will be:

• USA/Canada 15 miles - 6dB net gain antenna conguration permitted (4W EIRP)

• Australia/NZ 12 km - Unity gain antenna conguration (1W EIRP)

To achieve the maximum transmission distance, the antennas should be raised above intermediate obstructions so

the radio path is true “line of sight”. Because of the curvature of the earth, the antennas will need to be elevated at

least 15 feet (5 metres) above ground for paths greater than 3 miles (5 km). The modules will operate reliably with some obstruction of the radio path, although the reliable distance will be reduced. Obstructions that are close to either antenna will have more of a blocking effect than obstructions in the middle of the radio path. For example, a group of trees around the antenna is a larger obstruction than a group of trees further away from the antenna.

The M1115NL module provides a range of test features, including displaying the radio signal strength. Line-of-sight paths are only necessary to obtain the maximum range. Obstructions will reduce the range however, but may not prevent a reliable path. A larger amount of obstruction can be tolerated for shorter distances. For very short distances, it is possible to mount the antennas inside buildings. All radio paths require testing to determine if they are reliable - re-

fer section 5.4 “Network Statistics” Where it is not possible to achieve reliable communications between two modules,

then a third module may be used to receive the message and re-transmit it. This module is referred to as a repeater. This module may also have input/output (I/O) signals connected to it and form part of the I/O network - refer to Chap-

ter 4 Conguration of this manual.

An antenna should be connected to the module via 50 ohm coaxial cable (e.g. RG58, RG213, Cellfoil, etc) terminated with a male SMA coaxial connector. The higher the antenna is mounted, the greater the transmission range will be,

however as the length of coaxial cable increases so do cable losses. For use on unlicensed frequency channels, there are several types of antennas suitable for use. It is important antennas are chosen carefully to avoid contravening the maximum power limit on the unlicensed channel - if in doubt refer to an authorised service provider.

The net gain of an antenna/cable conguration is the gain of the antenna (in dBi) less the loss in the coaxial cable (in dB).

The net gain of the antenna/cable conguration is determined by adding the antenna gain and the cable loss. For example, a 6 element Yagi with 70 feet (20 metres) of Cellfoil has a net gain of 4dB (10dB – 6dB).

Maximum Gain per region

Country Max Gain (dB)

USA / Canada 6

Australia / New Zealand 0

Europe 0

Typical Antenna Gains

Antenna Gain (dB)

Dipole with integral 15’ cable 0

5dBi Collinear (3dBd) 5

8dBi Collinear (6dBd) 8

6 element Yagi 10

9 element Yagi 12

16 element Yagi 15

Typical Coax losses (900 MHz)

Cable Type Loss (dB per 30ft / 10m)

RG58 -5dB

RG213 -2.5dB

CC10 (3m Cellfoil) -3dB

CC20 (6m Cellfoil) -6dB

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Connections between the antenna and coaxial cable should be carefully taped to prevent ingress of moisture. Moisture ingress in the coaxial cable is a common cause for problems with radio systems, as it greatly increases the radio losses.

We recommend that the connection be taped, rstly with a layer of PVC Tape, then with a vulcanising tape such as “3M 23 tape”, and nally with another layer of PVC UV Stabilised insulating tape. The rst layer of tape allows the

joint to be easily inspected when trouble shooting as the vulcanising seal can be easily removed.

Where antennas are mounted on elevated masts, the masts should be effectively earthed to avoid lightning surges. For high lightning risk areas, surge suppression devices between the module and the antenna are recommended. If the antenna is not already shielded from lightning strike by an adjacent earthed structure, a lightning rod may be installed above the antenna to provide shielding.

Dipole and Collinear antennas.

A collinear antenna transmits the same amount of radio power in all directions - and they are easy to install and use because they do not need to be aligned to the destination. The dipole antenna with integral 15 ‘cable does not require any additional coaxial cable; however a cable must be used with the collinear antennas. Collinear and dipole antennas should be mounted vertically, preferably 1 wavelength away from a wall or mast to obtain maximum range.

Figure 7 – Collinear Antenna mounting

Yagi antennas.

A Yagi antenna provides high gain in the forward direction, but lower gain in other directions. This may be used to compensate for coaxial cable loss for installations with marginal radio path.

The Yagi gain also acts on the receiver, so adding Yagi antennas at both ends of a link provides a double improvement.

Yagi antennas are directional. That is, they have positive gain to the front of the antenna, but negative gain in other directions.

Hence, Yagi antennas should be installed with the central beam horizontal and must be pointed exactly in the direction of transmission to benet from the gain of the antenna. The Yagi antennas may be installed with the elements in a

vertical plane (vertically polarised) or in a horizontal plane (horizontally polarised), however both antenna must be in the same plane for maximum signal. If the antenna are mounted in different planes the receive signal level will be

reduced by around 30dB.

Figure 8 - Yagi Antenna Mounting

For a two-station installation, with both modules using Yagi antennas, horizontal polarisation is recommended. If there are more than two stations transmitting to a common station, then the Yagi antennas should have vertical polarisation, and the common (or “central” station should have a collinear (non-directional) antenna.

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Note that Yagi antennas normally have a drain hole on the folded element - the drain hole should be located on the bottom of the installed antenna.

2.5 Connections

2.5.1 Bottom panel connections

Figure 9 – Bottom Panel Connections

Ethernet port

The M1115NL modules provides a standard RJ-45 Ethernet port compliant to IEEE 802.3 10/100 BaseT. This port provides full access to the module, including conguration, diagnostics, log le download and rmware upload, of both

the local and remote units. Additionally the Ethernet port can provide network connectivity for locally connected third-party devices with Ethernet functionality.

USB Device Port for conguration

The M1115NL module also provides a USB-device (USB-B) connector. This connector provides conguration of the device and remote conguration access to other devices in the radio network.

RS-232 port

The M1115NL module provides an RS-232 serial port, which support operations at data rates up to 230,400 baud. This port supports MODBUS protocol.

The RS-232 port is provided by an RJ-45 connector wired as a DCE according to EIA-562 Electrical Standard.

RJ-45 Signal Required Signal name Connector

1 RI Ring Indicator

2 DCD Data Carrier Detect

3 DTR Y Data Terminal Ready

4 GND Y Signal Common

5 RXD Y Receive Data (from Modem)

6 TXD Y Transmit Data (to Modem)

7 CTS Clear to Send

8 RTS Request to Send

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RS-485 port with Modbus Support.

The M1115NL module provides an RS-485 serial port, which supports operations at data rates up to 230,400 baud. Default baud rate is 9600 baud, No Parity, 8 data bits and 1 stop bit which match the 115S serial expansion modules defaults. This port Supports MODBUS protocol.

The RS-485 port is provided by two screw terminals. On-board termination of the RS-485 circuit is built-in.

Figure 10 – RS485 Connections

2.5.2 Side Access Conguration Panel

Figure 11 – Side Access Panel

On the side of the module is a small access cover that hides a “Factory Boot” switch, USB Host port and a small bank of dipswitches that are used for Analog input voltage/current selection, External Boot and Default conguration

settings.

“Factory Boot” switch

The “Factory Boot” switch is used for factory setup and diagnostics. This switch should not normally be used, except if advised by DAWN Wireless support.

USB Host port

This port is a USB Host (Master port), which can interface with USB storage devices for data logging (Future) and for upgrading the module Firmware – See section 4.4 “System Tools” for details on how this is done.

Dipswitches

The Dipswitches are used to select a number of functions within the module; the table below indicates the different

switch positions.

• Dipswitches 1 to 2 – Selection for measuring Current or Voltage on Analog Input 3. Set DIP switches ON to measure Current (0-20mA) and OFF for Voltage (0-5VDC).

• Dipswitches 3 to 4 – Selection for measuring Current or Voltage on Analog Input 4. Set DIP switches ON to measure Current (0-20mA) and OFF for Voltage (0-5VDC).

• Dipswitch 5 – DIP Switch not used

• Dipswitch 6 – When set to ON (Enabled), the module will boot up with a known factory default including a default IP address for Ethernet connection. (Refer to 4.1 “Default ”)

Switch Function Current Voltage

DIP 1 & 2 Analog Input #3

DIP 3 & 4 Analog Input #4

Switch Function Enabled Disabled

DIP 5 Not used

DIP 6 Default Conguration

Front panel connections

Figure 12 – Front Panel Connections

The M1115NL front panel provides connections for the following

• Eight Digital Input /Output (DIO1-8).

• Two 12 bit, 0.1% accuracy differential analog inputs.

• Two single ended 12 bit, 0.1% accuracy analog inputs.

• Two 15 bit, 0.1% accuracy current sourcing analog outputs.

• Connection terminals for Common and +24V Analog Loop Supply (ALS maximum current limit is 150mA).

2.5.3 Digital Inputs

Each digital I/O channel on the M1115NL can act as either an input or an output. The input/output direction is

automatically determined by the connections and conguration of the I/O.

If you have an I/O channel wired as an input but operate the channel as an output. No electrical damage will occur however, the I/O system will not operate correctly.

If operating the channel as an output and performing a “read inputs” on this location it will indicate the status of the output.

Marked DIO1-8 the Digital inputs share the same terminals as the Digital outputs on the M1115NL module.

A digital input is activated by connecting the input terminal to EARTH or Common, either by voltage-free contact, TTL

Level, or transistor switch.

Each digital input has an orange indication LED that will turn on when the input has been connected to a GND or

common.

Figure 13 – Digital Input Wiring

2.5.4 Pulsed Inputs

The M1115NL supports 8 x digital signals, of which inputs 1-4 can be used as pulsed inputs.

The maximum pulse frequency is 50 KHz for Input 1 & 2 and 1 KHz for Input 3 & 4.

Digital/Pulsed inputs are suitable for TTL signal Level, NPN-transistor switch devices or voltage-free contacts (relay/

switch with debounce capacitor).

Figure 14 – Pulsed Input Wiring

Frequencies greater than 1 KHz need to use a TTL logic drive or an external pull-up resistor. Pulsed inputs are converted to two different values internally. First is the Pulse Count, which is an indication of how many times the input has changed state over a congured time period. Secondly there is a Pulse Rate which is an analog input derived from the pulse frequency. E.g. 0 Hz = 4mA and 1 KHz = 20mA.

2.5.5 Digital Outputs (Pulsed Outputs)

Digital outputs are open-collector transistors and are able to switch loads up to 30VDC, 200mA.

The 8 digital outputs share the same terminals as the digital input. These terminals are marked DIO1-8.

Figure 15 – Digital Output Wiring

When active, the digital outputs provide a transistor switch to EARTH (Common).

To connect a digital output, refer to “Figure 15” above. A bypass diode (IN4004) is recommended to protect against

switching surges for inductive loads such as relay coils.

The digital channels DIO1-4 on the M1115NL module can be used as pulse outputs with a maximum output frequency of 1 KHz.

Digital Output Fail Safe Status

As well as indicating the Digital Output status (on / off), the LEDs can also indicate a communications failure by ashing the Output LED. This feature can be utilised by conguring a Fail Safe time and status on the “I/O Conguration” web page as shown below.

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Figure 16 – Digital Output Failsafe Times

The Fail Safe Time is the time the output counts down before activating a Fail Safe state.

Normally this would be congured for a little more than twice the update time of the mapping that is sending data to it.

This is because the Fail Safe Timer is restarted whenever it receives an update. If we send successive update

messages and fail to receive both the timer counts down to zero and then activates the Failsafe state.

If the Failsafe state is enabled (ON) this will indicate with the LED ashing briey OFF and the digital output will turn

on.

If the Failsafe state is disabled (OFF) this will indicate with the LED ashing briey ON and the digital output will turn

off.

Figure 17 - Fail-Safe State

2.5.6 Analog Inputs

The M1115NL can provide two oating differential analog inputs and two grounded single-ended analog inputs.

Analog Input 1 & 2 can automatically measure Current (0-20 mA) or Voltage (0-25V) depending on what is connected

to the input.

Analog input 3 & 4 must be congured to measure Current (0-20mA) or Voltage (0-5V) via the DIP switches under the Side Access Conguration Panel (See Section 2.5.2 ).

An internal 24V Analog Loop Supply (ALS) provides power for any current loops with a maximum current limit of

150mA.

The LEDs have an analog diagnostic function and will indicate the status of the input.

If the current is less than 3.5 mA the LED will be off and if greater than 20.5mA the LED will be on.

The LED will icker with the duty cycle relative to the analog reading in this range. (Note by default there is a 5 second

delay on the input because of the Filter)

Also, LEDs beside AI1+, AI2+ ash according to current on these inputs. LEDs beside AI1- and AI2- ash according to

the voltage on the Analog inputs.

Differential Current Inputs (AIN 1 & 2 only)

Differential mode current inputs should be used when measuring a current loop, which cannot be connected to earth

or ground. This allows the input to be connected anywhere in the current loop. Common mode voltage can be up to

27VDC.

The diagram below indicates how to connect Loop powered or externally powered devices to the M1115NL Differential

Analog Inputs.

Figure 18 – Differential Current Inputs

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