Omega | OM-240 | Owner Manual | Omega OM-240 Owner Manual

Omega OM-240 Owner Manual
User’s Guide
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OM-240
24-Channel Ethernet Data Logger
with Embedded Web Server
omega.com info@omega.com
U.S.A.
Headquarters:
Servicing North America:
Omega Engineering, Inc.
Toll-Free: 1-800-826-6342 (USA & Canada only)
Customer Service: 1-800-622-2378 (USA & Canada only)
Engineering Service: 1-800-872-9436 (USA & Canada only)
Tel: (203) 359-1660 - Fax: (203) 359-7700
e-mail: info@omega.com
For Other Locations Visit omega.com/worldwide
The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and reserves
the right to alter specifications without notice.
02
SPECIFIC WARNINGS
To guarantee the IP protection during the installation, expect to seal the instrument
cables (with silicone or foam) after having tightened the cable-gland. Through the
installation expect suitable protections to avoid product overheating (eg. a shelter to avoid
direct sunlight); similarly for low temperatures. Do not open in case of bad weather
conditions (rain, snow, etc). Expect the recurring substitution of the hygroscopic salts.
Do not install in small locations and/or without ventilation, with high humidity, in
potentially dangerous areas or where is prescribed the use of explosion
-proof components.
Electrical connections on the product must be executed only from qualified and expert
personnel, in compliance with actual rules and regulations.
For external network powering, the plug at the end of the cord has ground contact; the
grounding of the powering is provided from the plug inserted in the socket. The product
powering source must be divided from dangerous voltage parts with double insulation and
must guarantee insulation of at least 3000 Vrms.
Be sure to have, in the plant, suitable protection from an electric short circuit (for example
high sensitivity differential circuit-breaker at the root of the AC/DC power supply unit).
Before any maintenance on the product, the powering must be disconnected.
Avoid any action that can short-circuit the rechargeable battery poles.
To enable the product protections, expect a connection to the ground plant through a proper
green-yellow grounding connector; this connector must be connected to the proper ground
clamp (or to any bolt if it is a metal cabinet).
Verify periodically rechargeable battery voltage; expect a substitution after roughly
5 years and if the voltage measured on the poles is too low (eg. 10.5V for a battery with
nominal voltage 12V) and investigate on the causes. Using the product differently from the
one expected from the manufacturer can compromise safety conditions. The use of parts
other than original spare parts could lead to irregular functioning or even dangerous
situations for a person and things.
03
TABLE OF
CONTENTS
QUICK START
6
WEB INTERFACE
39
Overview
6
WEB PAGES FUNCTIONALITY
39
DEVICE OVERVIEW
6
Web interface Language setup
40
Connections
6
Configuration of local analog channels
40
Front Panel
6
Input Configuration
43
Rear Panel
8
Multiplexer Configuration
47
Cabling
8
MODBUS SENSORS
51
Overview
8
What’s Modbus?
51
Power Supply
8
Digital Sensors Configuration
52
Connecting PSU
9
Output Configuration and Alarms 1&2
54
Analog Channels Connection
9
Virtual Channel Alarm
55
Examples
10
Tips
56
Digital Inputs Connection
18
DATALOGGER CONFIGURATION
58
Example
19
Overview
58
Digital Output Connection
20
Configuration -> Datalogger
58
RS485 SmartModbus Connection
20
ALARMS
61
Multiplexers Connection
21
Overview
61
Configuration
61
SETUP
22
SMS Configuration
62
POWERING THE DATALOGGER
22
Email Configuration
63
Default OM-240 Settings
22
SMTP Configuration
64
Direct connection (LOCAL) to the Datalogger
22
FTP Configuration
64
REMOTE CONNECTION TO THE DATALOGGER 23
Channel Alarm Types
65
IP Computer Settings
23
Low and High Thresholds
65
Overview
23
Derivate
65
Description
23
Examples
65
WEB CONNECTION AND OPENING
25
DIGITAL INPUTS CONFIGURATION
66
Overview
25
Example of Digital Input IN1 Configuration
69
Description
25
Example of Digital Input IN2 Configuration
71
CONNECTION THROUGH DHCP
26
VIRTUAL CHANNELS
73
Overview
26
Overview
73
Description
26
Why are Virtual Channels Implemented?
73
Display and Keyboard Functionality
29
Scripts
74
Keyboard Overview
29
Virtual Channel Configuration
76
Display Overview
Firmware and Web Updates – Vibrating Wire
Firmware Update
Data Download
30
Common Errors and Warnings
77
32
ADVANCED CONFIGURATION
79
Overview
79
Datalogger Stop and Switch Off
35
Connections
79
Display Language Setup
37
Measure log data transfer
81
Account Management
82
04
32
TABLE OF
CONTENTS
Date and Time
83
TROUBLESHOOTING
103
Energy Management
84
BASIC TROUBLESHOOTING
103
Info
84
LOCAL/REMOTE COMMUNICATION
104
CHARTS
84
EMAIL SENDING
106
Overview
84
FTP SERVER SENDING DATA
108
Activation
85
MEASURE
109
Setup and use
85
APPENDIX
110
MODBUS TCP (SCADA INTEGRATION)
90
APPENDIX A: WIRING SCHEMES
110
Overview
90
2 WIRES SENSORS
110
COMMUNICATION
90
4 WIRES SENSORS
114
Communication Bus
90
6 WIRES SENSORS
119
Measure Register
90
Timestamp details
91
Flag’s Register
91
MAINTENANCE
122
Sensor Acquired
92
SPECIFICATIONS
123
Examples
92
Input X Valid
92
Input X Alarm
92
REGISTER MAP
92
General
92
Analog Sensors Locations
93
Digital Sensors Locations
93
Multiplexers Sensors Locations
94
Digital Inputs Locations
96
Virtual Channels Locations
97
SENSOR BASE ADDRESS
98
Local Sensors (Analog)
98
Digital Sensors (Smart Modbus)
98
Multiplexers sensors
98
Digital Inputs
98
Virtual Channels
98
Event Log Registers
99
STATUS REGISTERS
99
Datalogger Status
100
Next Acquisition
100
Firmware Version
101
Model Info
101
Serial Number
101
Device Name
102
External Digital Input / Output Status
102
05
QUICK START
Overview
This chapter is about different product’s features, starting from a device overview, and it
will show how to connect every available sensor:
1. Front and Rear panel
Connection for:
2.Power Supply
3.Analog sensors
4.Digital Inputs
5.RS485 SmartModbus Sensors
6.Multiplexer boards
DEVICE OVERVIEW
OM-240 is a universal datalogger, capable of reading 0..25mA Current Loop and
Transmitter, -10..10V, Vibrating Wire, NTC, PT100, PT200, PT500, PT1000, Ratiometric,
Wheatstone Bridge, Thermocouple, Potentiometer and SmartModbus RS485 Digital
Sensors. It provides a maximum of 24 channels when using only 2 wires sensors.
OM-240 is expandable with SmartMux device.
Connections
Front Panel
Figure 1
06
Front Panel
Figure 2
The majority of connections are located In OM-240’s front panel:
• RS232: it can be used to connect a 3G Modem to expand connectivity
• Ethernet: This port is used to connect the device to an existing LAN. Internal Web Server
can be browsed to configure and download acquired data. It can be used for Internet connection (Cloud, FTP and EMAIL connections)
• USB Host: it allows the user to download measures, events and alarm logs to a pendrive,
or to update the firmware
• V OUT: this connector is designed to output the same voltage applied to V IN. It can be
turned off automatically when logger is in sleep mode or be kept always on.
• RS485#2 – V OUT: This is SmartMux port, which allows the connection of 16 SmartMux
in daisy chain and offers power supply.
• RS485#1 – V OUT: This is SmartModbus port, which allows digital sensors connections
and offers power supply.
• V IN: This port is to power the datalogger. It’s designed to work in 10-30V range.
• PWR-CONFIG: This port will allow the selection of Power supply. A jumper between two
rightmost connections is needed to let the datalogger be powered up.
• ANALOG INPUTS: This 8 terminal blocks is used to connect analog sensors. Starting from
bottom-left to bottom-right we find channels from 1 to 12, and from top-left to top-right we
find channels from 13 to 24.Every 6 connections, there is a Ground connector designed to be
the termination of shielded cables.
07
Rear Panel
Figure 3
OM-240’s rear panel has 2 Digital Inputs and 1 Digital Output.
• Digital Inputs IN1 IN2 can be configured to read rain meters and anemometers, or similar
pulse sensors (optoisolated, Min input voltage is 5V and Min current input is 2mA, while
Max input voltage is 24V and Max current is 10mA, Max frequency 1KHz, accuracy 0.1Hz).
• Digital Output is a relay output (for alarms), volt-free closure (low voltage, 30V 2A).
Cabling
Overview
This chapter will explain every connection to datalogger, how to optimize connections availability and to use proper connectors to avoid unexpected behavior (malfunctions).
Power Supply
OM-240 can be supplied with 10V to 30V. In order to grant correct functioning of
every connected sensor or device, and its internal circuitry, at least 2A PSU is needed.
If Analog Sensors, External Modems, RS485 SmartModbus Sensors are powered from
OM-240, a more powerful PSU should be used.
Warning: ALL V-OUT connections on the front panel - in the upper terminal block expose the same V-IN applied. If you apply 24V to V-IN, 24V will be exposed.
Since OM-240 can work in a wide range of voltage, use has to choose the right one
to power external devices connected.
08
Connecting PSU
The logger should be configured before powering it up.
New datalogger are shipped already configured (as it follows) to be powered from external
power source.
Rightmost pins of PWR CONFIG must be short-circuited to allow the datalogger to use
V-IN source.
Connect V-IN to the right Power Supply Unit.
Picture below shows connections.
Analog Channels Connection
OM-240 can handle sensors up to a total of wires of 48
Examples:
2 wires sensors: up to 24 channels
4 wires sensors: up to 12 channels
6 wires sensors: up to 8 channels
User can also mix sensors type and the datalogger will shift positions with this rule:
• 6 Wires sensors first
• 4 Wires sensors middle
• 2 Wires sensors last
With this simple rule, it will maximize connection simplicity
Here are few examples:
09
Example 1 (2 wires sensors)
User connects 4 sensors, all of them are 2 wires:
First of all we configure the datalogger to read this sensors, as shown in Figure 4.
Figure 4
Now we can proceed with physical configuration.
SENSOR1 will be connected to channel 1, A and B terminals.
SENSOR2 will be connected to channel 2, A and B terminals.
SENSOR3 will be connected to channel 3, A and B terminals.
SENSOR4 will be connected to channel 4, A and B terminals.
Wiring schemes are available from web server, or in the APPENDIX of this manual.
S1 S2 S3
Figure 5
010
S4
Example 2 (4 wires sensors)
User connects 3 sensors, all of them are 4 wires:
First of all we configure the datalogger to read this sensors, as shown in Figure 6.
Figure 6
Now we can proceed with physical configuration.
SENSOR1 will be connected to channel 1, A and B terminals, and channel 2, A and B terminals.
SENSOR2 will be connected to channel 3, A and B terminals, and channel 4, A and B terminals.
SENSOR3 will be connected to channel 5, A and B terminals, and channel 6, A and B terminals.
Wiring schemes are available from web server, or in APPENDIX of this manual.
011
S1 S2
S2 S4
Figure 7
Example 3 (6 wires sensors)
User connects 3 sensors, all of them are 6 wires:
First of all we configure the datalogger to read this sensors, as shown in Figure 8.
Figure 8
012
SENSOR1 will be connected to channel 1, A and B terminals, channel 2, A and B terminals,
and channel 3, A and B terminals.
SENSOR2 will be connected to channel 4, A and B terminals, channel 5, A and B terminals,
and channel 6, A and B terminals.
SENSOR3 will be connected to channel 7, A and B terminals, channel 8, A and B terminals,
and channel 9, A and B terminals.
Wiring schemes are available from web server, or in APPENDIX of this manual.
S1
S2
S3
Figure 9
013
Example 4 (4 wires and 2 wires mix)
User connects 4 sensors, 2 of them are 4 wires, while the other 2 are 2 wires.
First of all we configure the datalogger to read this sensors, as shown in Figure 10.
Figure 10
According to rules mentioned at the beginning of this chapter, we will start with 4 wires
sensors, followed by 2 wires sensors.
SENSOR1 will be connected to channel 1, A and B terminals, and channel 2, A and B terminals.
SENSOR2 will be connected to channel 3, A and B terminals, and channel 4, A and B terminals.
SENSOR3 will be connected to channel 5, A and B terminals.
SENSOR4 will be connected to channel 6, A and B terminals.
Wiring schemes are available from web server, or in APPENDIX of this manual.
014
Figure 11
S1
S2
S2 S3S4
Example 5 (6 wires and 2 wires mix)
User connects 3 sensors, 1 of them is 6 wires, while the other 2 are 2 wires.
First of all we configure the datalogger to read this sensors, as shown in Figure 12.
Figure 12
According to rules mentioned at the beginning of this chapter, we will start with 6 wires
sensors, followed by 2 wires sensors.
SENSOR1 will be connected to channel 1, A and B terminals, channel 2, A and B terminals,
and channel 3, A and B terminals.
SENSOR2 will be connected to channel 4, A and B terminals.
SENSOR3 will be connected to channel 5, A and B terminals.
Wiring schemes are available from web server, or in APPENDIX of this manual.
015
S1
S2 S3
Figure 13
Example 6 (6 wires and 4 wires mix)
User connects 3 sensors, 1 of them is 6 wires, while the other 2 are 4 wires.
First of all we configure the datalogger to read this sensors, as shown in Figure 14.
Figure 14
According to rules mentioned at the beginning of this chapter, we will start with 6 wires
sensors, followed by 4 wires sensors.
SENSOR1 will be connected to channel 1, A and B terminals, channel 2, A and B terminals,
and channel 3, A and B terminals.
SENSOR2 will be connected to channel 4, A and B terminals, and channel 5, A and B terminals.
016
SENSOR3 will be connected to channel 6, A and B terminals, and channel 7, A and B terminals.
Wiring schemes are available from web server, or in APPENDIX of this manual.
S1
S2 S3
S3
Figure 15
Example 7 (6 wires, 4 wires and 2 wires mix)
User connects 5 sensors, 1 of them is 6 wires, other 2 are 4 wires, and the last 2 are 2 wires.
First of all we configure the datalogger to read this sensors, as shown in Figure 16.
Figure 16
According to rules mentioned at the beginning of this chapter, we will start with 6 wires
sensors, followed by 4 wires and 2 wires.
SENSOR1 will be connected to channel 1, A and B terminals, channel 2, A and B terminals,
and channel 3, A and B terminals.
017
SENSOR2 will be connected to channel 4, A and B terminals, and channel 5, A and B terminals.
SENSOR3 will be connected to channel 6, A and B terminals, and channel 7, A and B terminals.
SENSOR4 will be connected to channel 8, A and B terminals.
SENSOR5 will be connected to channel 9, A and B terminals.
Wiring schemes are available from web server, or in APPENDIX of this manual.
Figure 17
S1
S2 S3
S3S4 S5
Digital Inputs Connection
OM-240 has 2 digital inputs (on rear panel) that can be configured, independently,
as “Trigger” or “Rainmeter/Anemometer”.
If they are configured as Trigger, a pulse on the channel will start an acquisition of all
configured channels.
If they are configured as Rainmeter/Anemometer, input frequency will be measured and
logged in measure log.
018
Readable signal specifications:
• Min 5V (2mA max)
• Max 24V (10mA max)
• Max Frequency 1KHz
• Accuracy: 0.1Hz
Inputs are optoisolated.
Example
In order to configure a trigger, connect it to DIGITAL INPUTS IN1 (or IN2, not showed here):
TRIGGER
Figure 18
Open OM-240’s web server, at “Channels Configuration -> Digital Inputs”
page. Select Trigger in the IN1 Input field:
Figure 19
Edge parameter (Up and Down) indicates if the trigger will raise voltage between poles or drop it,
or if it’s a “rectangular” wave, you can choose to use rising front or falling front.
Number of reading indicates how many acquisition cycles will be performed after a trigger event.
019
In order to use Triggers the OM-240 should not go in sleep mode. Check Energy
Management section to configure the datalogger to avoid switch off (by selecting Always ON).
For more information about how to configure Digital Inputs, refer to Digital Inputs section.
Digital Output Connection
OM-240 is provided with a Digital Output (NC / NO), which can drive low voltage
(max 30V, 2A). It’s a relay, so it is a volt-free switch.
In order to handle higher voltages or currents, use internal relay to drive a rugged heavy
duty relay.
RS485 SmartModbus Connection
OM-240 can read digital sensor over the RS485 SmartModbus port.
The port used for sensors connection is RS485#1.
WARNING: RS485#2 PORT DOES NOT WORK WITH DIGITAL SENSORS AS IT IS
DESIGNED TO WORK ONLY WITH MULTIPLEXERS.
RS485#1 port presents 5 connections:
• Data – : can be named as B or “inverting pin” or TxD-/RxD• Data + : can be named as A or “non inverting pin” or TxD+/RxD+
• GND: it is the reference pin. It is recommended to use GND (SC, C, or reference pin) while
connecting RS485 sensors.
• +V: OM-240 can power RS485 sensors. It provides the same power source applied to
OM-240 VIN. Be careful to choose the right supply to power both datalogger and sensor.
• GND: same as +V, is the negative connection of power supply.
RS485 allows daisy chain connections. The example below shows an OM-240 datalogger
with four temperature and humidity probes connected in daisy chain.
Figure 20
020
The minimum distance between two nodes (OM-240 to probe, or probe to probe) is 30 cm.
WARNING: BE CAREFUL ON CABLE DIMENSIONS, AS THEY ARE AFFECTED
FROM TOTAL LENGTH AND PROBE NUMBERS. BE SURE TO CHOOSE A CABLE OF
THE RIGHT SIZE FOR YOUR PROJECT.
Example
Figure 21
Not all probes have a signal GND (SC) pin, and in the example above, the probe was not
connected to signal ground.
Multiplexers Connection
OM-240 offers Analog Sensors expandability through Multiplexers.
Multiplexers are expansion boards that can read up to 24 sensors each, with connections
logic similar to OM-240 (explained in Multiplexer Section), which will be connected to
chan-nel 22/23/24 of OM-240
More than one Multiplexer can be connected to OM-240, up to 16 Units, daisy chained
to RS485#2 and channels 22/23/24.
021
SETUP
POWERING THE DATA LOGGER
The OM-240 is supplied not powered to avoid that during transport the backup battery
will discharge.
To begin working with the OM-240 proceed as follows:
• Connect external powering (battery charger or photovoltaic panel);
ATTENTION: Do not invert battery polarity, otherwise the data logger may be damaged or
stop working.
Default OM-240 Settings
The network card is setup from as follows:
IP Address: 192.168.1.100
Subnet Mask: 255.255.255.0
Gateway: 192.168.1.1
DNS1: 0.0.0.0
DNS2: 0.0.0.0
To connect with the OM-240 is necessary to setup PC network card in the same class of the
data logger, but with different IP (eg. 192.168.1.200).
Direct connection (LOCAL) to the Datalogger
To connect and manage the OM-240 through its on-board web pages, after the proper
configu-ration of PC network card, connect the PC to the OM-240 through an Ethernet
crossover cable (supplied). Once connected through the supplied cable, open any internet
browser and put, in the address bar, OM-240 IP address (default 192.168.1.100).
After a few seconds you will be asked for the data logger access credentials.
NOTES:
• The OM-240 is compatible with the main internet browsers (FireFox, IE9, Safari,
Chrome). FireFox is recommended to manage the OM-240.
•First page upload can take some time.
Following are the default credentials:
User “Admin” User “User”
User: Admin
User: User
Psw: Admin
Psw:
User
022
REMOTE CONNECTION TO THE DATALOGGER
This manual contains all basic information to properly connect the OM-240 to the
network through ethernet connection.
There is also a description of the procedure to set the logger and connect it through DHCP.
IP Computer Settings
Overview
Here you will learn how to set the computer IP address to allow the connection with
the OM-240.
Description
Open control panel and then: Network and Internet – Network Centre and Sharing
023
Then click on LAN connection and enter Properties (1)
A new window will open “Properites-LAN connection ” (2)
Select “Internet protocol version 4 (TCP/IPv4) (3), and click on Properties (4).
024
Select “Use this IP: “and write data you see in the picture below.
WEB CONNECTION AND OPENING
Overview
Here you will learn how to connect the OM-240 to the network and how to access the
WEB. Description
Connect the OM-240 through Ethernet cable (Look at the 2 different block diagrams)
DATA LOGGER
PC
PC
DATA LOGGER
ROUTER
Open the browser and write in the search bar the OM-240 IP address “192.168.1.100” and
then enter user and password:
User:
Admin
Password:
Admin
025
CONNECTION THROUGH DHCP
Overview
Here you will learn how to connect the OM-240 through DHCP. This option will allow the
user to use either the OM-240 webserver and the usual Internet connection.
Note. The router must be connected to a DHCP server
Description
When you are connected to the OM-240 web server (192.168.1.100 IP address to be written
in the search bar), select “Advanced” from left menu and then “Connections”.
1. Flag “ DHCP Enable” and then start OM-240 reboot.
2. After Rebooting, IP address has to be setted up – look at chapter “Computer IP settings”
3. In few steps (summary):
4. Open Control Panel and then “Network Centre and Sharing” window
5. Enter “LAN Connection”and open Properties
6. Select: Internet protocol version 4 (TCP/IPv4) and then click on Properties
7. This time – unlike before - select “Obtain an IP address automatically”.
026
Click OK and close all windows.
Control from display the new IP address (see picture below).
NOTES
The IP address shown in the picture has been assigned by the router.
027
Now you should enter the IP address shown in the display – instead of default IP
address 192.168.1.100 - in order to enter in the OM-240 web server.
028
Display and keyboard functionality
Through the OM-240 keyboard and instructions shown on the display is possible to perform
some simple operations without using a computer connected to OM-240.
NOTE:
Some operations (data download on USB key, FW update, network card
enabling, etc…) can require the OM-240 to automatically restart; this is normal.
Keyboard Overview
“Up” key
“Left” key
“reset” key
“Right” key
“Down” key
“reset” keys
“Up”, “Down”, “Left” e “Right” keys are used to move within menus and submenus and to
select the options. The “Enter” key is used to confirm the option.
The reset keys are used in case the OM-240 stops working. Pushing both keys at the same
time, you reboot the datalogger.
029
Display Overview
Display main page has three icons in the middle and some information in the upper and lower
part of the display.
The information shown in the main page are:
• Date and time
• IP address
• External powering voltage or internal batteries percentage.
• Internal temperature
Date and Time
Icons
IP address
Humidity
on early models
Powering
Temperature
Icons in the main page have the following meaning:
LOG: It shows last reading stored for each sensor configured on the OM-240. Through
“Right” and “Left” keys is possible to browse the different sensors.
To return to main menu press “Enter” key.
030
DL: It shows OM-240 current status.
To return to main menu press
ACQUISITION
It is possible to see in real time the current acquired channel. Selecting “Acquisition” between one measureing cycle and the other, an
extemporaneous acquisition will be instantly executed.
START DL
Start the data logger if not already running.
STOP DL
Stop the data logger if running.
TEST FTP
Test FTP parameters with sample file.
TEST MAIL
Test Mail parameters with sample email.
TEST ALL
Test both FTP and Mail.
SYS: Here you can find OM-240 connection parameters (network card), calibration values
and functions to download data on USB pen drive, update firmware and OM-240 stop (in
safety mode before cutting the power).
031
ATTENTION: Do not use at the same time the web interface and display functionality.
When you select SYS menu, the OM-240 enters in configuration mode: in this status the
OM-240 WILL NOT PERFORM THE CONFIGURED ACQUISITIONS. Once you ended the
operations in SYS menu, you must return in the main page (with the three icons).
Firmware and Web Updates – Vibrating Wire Firmware Update
To update OM-240 web pages and firmware refer to “ FW & WEB UPDATES – Vibr. Wire
FW Update” manual.
Data download
It is possible to download data (readings, log events and log alarms files) in two ways:
• PC (through web interface)
• USB (through USB pen drive)
To download data through a PC connected to the OM-240, first configure the PC network card
(with the OM-240’s same class but with different IP). Through the pages “Data Monitor –
Measures, Events, Alarms” is possible to download files as CSV format (compatible with the
most common spreadsheets eg. Microsoft Excel, Apple Numbers, Open Office Calc etc…)
To download data through USB pen-drive (supplied):
032
• Select through keyboard (“Right” and “Left” keys) the SYS menu and press “Enter” key;
If the OM-240 has an acquisition in progress, is necessary to wait its end. In this case will
be displayed the following screen:
• When the acquisition ends, it will be displayed the following screen:
• Through “Up” and “Down” keys select the option “Download data on USB” and press
“Enter” key;
033
• The following screen will be displayed and the OM-240 will be automatically
restarted;
At restart you will be asked to insert the USB pen-drive and to press “Enter” key to start data
download;
NOTE: the USB pen-drive in the OM-240 must be FAT32 formatted. Other format will
prevent the OM-240 to identify the USB pen-drive and the copy can’t be executed.
• Once the USB pen-drive is mounted, data copy will start automatically (according to
OM240 acquisitions quantity, the copy could take a few minutes).
• During the copy will be displayed the following screen:
ATTENTION: Do not disconnect the USB pen-drive or cut off the OM-240
pow-ering during the copy, since the copy can be incomplete or corrupted.
034
• Once the copy is ended, the following message will be displayed; press “Enter” to proceed;
• Disconnect the USB pen-drive and press “Enter”. The OM-240 will be restarted and the
ac-quisition will proceed as previously set.
Datalogger Stop and Switch Off
When is necessary to cut off the power from the OM-240 (for maintenance or other) is
strongly recommended to stop the OM-240 following these steps.
Select, through keyboard, DL -> Stop DL.
Select, through keyboard (Right and Left keys), the SYS menu and press “Enter”;
035
If the OM-240 has an acquisition in progress, is necessary to wait its end. In this case will
be displayed the following screen:
• When the acquisition ends, it will be displayed the following screen:
• Using “Up” and “Down” keys select “System shutdown” and press “Enter”:
036
You will see the following screen:
Now is possible to cut off the OM-240 power (eg. Extract the “V IN” clamp.
NOTE:
This switch off procedure allows OM-240 to end all the writing/reading
cycles on the SD memory card. If OM-240 power is cut without software
shutdown, a scandisk may occur at next boot.
Display language setup
To modify display language:
• Select “SYS” menu and press “Enter” key:
037
• Through “Up” or “Down” keys select “English” and press “Enter” key:
• The selected language will be displayed. Using “Left” and “Right” key is possible to slide
among the different languages. Select the chosen language and press “Enter” key:
• Display interface language will be changed in the selected one.
NOTE:
actually the available languages are ITALIAN ENGLISH AND FRENCH
038
WEB INTERFACE
WEB PAGES FUNCTIONALITY
Follows a brief description of the main OM-240 web pages.
STATUS: Shows OM-240 status. In this page is shown the current OM-240 mode:
Run: OM-240 is set and started. It will start acquisitions according to selected
configuration. Con ig: OM-240 is in configuration mode. No acquisitions are in
progress. In this mode is possible to modify configuration parameters (channel
configurations, acquisition time, etc…), delete and download logs.
“Config” mode is expected only for “Admin” user
Stop: OM-240 is stopped. No acquisitions are in progress. In this mode is possible to
down-load logs but is not possible to change the configuration.
Moreover is possible to start, stop and set the OM-240 in configuration mode.
CONFIGURATION-ACQUISITIONS: in this page is possible to set acquisition frequency.
CHANNELS CONFIGURATION-LOCALS: in this page is possible to set local analog channels
on the OM-240.
CHANNELS CONFIGURATION –MULTIPLEXER: in this page is possible to set
multiplexer boards and their channels.
ATTENTION: For sensors wiring it is necessary refers to the schemes on the OM-240
web pages.
CHANNELS CONFIGURATION - DIGITALS: In this page is possible to set digital channels
to allow the OM-240 to read digital instruments.
DATA MONITOR - MEASURE: In this page is possible to display last OM-240
acquisition cycle. It’s also possible to download OM-240 executed and saved acquisitions.
039
Web interface language setup
To modify the web interface language, connect the OM-240 and access to web interface
with the user (Admin or User) that needs to change the language
Then:
• Select , from left menu, “Advanced” and in the submenus “Account Management”;
Figure 22
• In the page that will be displayed select “Language”;
• Insert the password in the field “Old password”;
• Press on “Save changes”.
Now the web interface will be converted in the selected language. To convert also the left
menu is necessary to refresh the web page pressing F5 or the specific symbol on internet
browser address bar.
NOTE:
To avoid that the browser will keep the old language is necessary to completely delete internet browser cache.
Configuration of local analog channels
In this manual is explained how to set up the local analog channels on the OM-240.
NOTE: it is important to make sure that the software configuration of channels coincides
with the physical wirings of sensors on channels. This is necessary to power correctly the
sensors.
To set up the local analog channels of the OM-240:
040
• enter the OM-240 with user Admin;
• make sure that the OM-240, in page STATE, is in Confi g mode before proceeding. If it
is not in Confi g mode, push on CONFIGURE to set up the OM-240 in configuration
mode;
Figure 23
• from the left menu, select the page channels configuration and afterward the entry local;
Figure 24
The page LOCA L ChA NNe LS CONFIGURATION opens. In this page it is possible to
enable and edit the local analog channels of the OM-240.
041
Figure 25
Add the proper sensor that you want to read.
• If your sensor requires two wires (for example a current loop 2W) Add 2 wires sensor
• If your sensor requires four wires (for example a volt 2ch with external supply) Add 4
wires sensor
• If your sensor requires six wires (for example a ratiometric sensor) Add 6 wires sensor
For example, if you push on button add 4 wires sensor in the underlying table a 4 wires sensors is added and it is possible to configure it.
Figure 26
After this selection press EDIT to setup sensors channel. Then, the first page of configuration
of the selected channel opens. In this page it is possible to select:
042
Figure 27
Input configuration
The page inp ut configuration is composed by a table which contains all the input parameters of configuration.
Figure 28
043
Particularly:
inp ut
Non-editable field. It indicates the input that is configuring. The
character “_A” or “_B” is added in case of a channel with 2 inputs
(ex: 1_A, 1_B)
acquisition:
the acquisition interval “personalized” for the channel
id e ntification
Field editable from the user. Name to assign to the sensor. This
field is exported as the heading of the column containing the measurements of sensor in file .CSV type “Measurements”
d e scrip tion
Field editable from the user. Description ascribable to the sensor
for a better identification. This field is present only in file .CSV
type “log measurements”
Me asure
Type of measurements to read on this input.
ty p e
p ow e r sup p ly
Power supply (output voltage or current) that the OM-240
will supply to the connected sensor. In case it is present
“external”, the OM-240 doesn’t supply any power supply
Different power supplies are proposed according to the
“TYPE OF MEASUR-MENT” selected.
m e asure
UNIT
Electrical unit of measure of the sensor. For some types of sensors
it is possible to choose between different units of measure (ex for
vibrating wire: digit, Hz, µs).
w a rm -up
[se c]
Field editable from the user. “Warm-up” time of the sensor.
It indicates how long the sensor is powered by the OM-240
before starting the measurement cycle. For some types of
measurements, this field could be disabled.
conve rsion
This field allows to select which conversion to realize between
LINEAR and POLYNOMIAL. It is also possible to decide to realize NO conversion (in this case the reading is expressed in electrical unit). This field is necessary to convert the reading of the sensor from electrical unit (mA, mV, digit, etc.) to engineering unit
(kPa, mm, mbar, etc.)
ze ro re a d ing
This field is enabled if the linear conversion has been selected. For
further information, please refer to manual “Linear and Polynomial
Conversion Quick Start”
se nsib ility
This field is enabled if the linear conversion has been selected. For
further information, please refer to manual “Linear and Polynomial
Conversion Quick Start”
p oly nomialcoe fficie nta -b -c-d
This field is enabled if the polynomial conversion has been selected. For further information, please refer to manual “Linear and
Polynomial Conversion Quick Start”
044
e ngine e ring unit
Field editable from the user. This field is enabled if the linear or
polynomial conversion is selected. It represents the acronym
of the unit of measure of the reading after the conversion in
engineering unit.
This field is enabled only for the type of measurement “Vibrating
Wire” or “Vibrating Wire + Thermistor”. It indicates (in msec) the
period of each stimulation phase
e x citation
This field is enabled only for the type of measurement “Vibrating
Wire” and “Vibrating Wire + Thermistor”. It indicates (in
msec) the stabilization period, i.e. how long the OM-240
waits before starting the reading phase
d e la y
This field allows to set up the range of functioning of the sensor.
If AUTORANGE is configured, the OM-240 decides automatically
with which range it is going to do the measurement. This implies
an increase in the reading time of the sensor.
range
sta rt fre que ncy
This field is enabled only for the type of measurement “Vibrating
Wire” or “Vibrating Wire + Thermistor”. It indicates the frequency
of the research start.
Stop
This field is enabled only for the type of measurement “Vibrating
Wire” or “Vibrating Wire + Thermistor”. It indicates the frequency
of the research end.
fre que ncy
Amplification factor applied to sensors’ signal. Raise this parameter only if sensor is placed far from datalogger and datalogger
provides unexpected or wrong readings.
Gain
Ex citation
factor(%)
Maximum amplitude of sensor excitation signal. Lower this parameter only if sensor is placed close to datalogger and provides
unexpected or wrong readings.
Ex citation
scaling sp e e d
This parameter sets adapting speed of excitation signal during vibraing wire reading.
Num b e r of
Sk ip p e d
d e cimals
Number of decimals recorded for this channel
The Data logger does not read the channel, but CSV file will be
populated with “skipped” values. This is to ensure compatibility
with software population layer in case of sensor change/removal.
Some fields will be grayed out depending on chosen sensor.
NOTE: in case of a channel with 2 inputs, the second configuration webpage is
completely identical to that described above. Other fields could be “blocked”
because they are connected to the configuration executed on input 1.
045
The second table on the page it is necessary to set up the possible alarm thresholds for the
selected input. In particular:
ala rm ty p e
High: the input is in alarm only if the reading
exceeds the value indicated in field high thre sh old
Low: the input is in alarm only if the reading
is lower than the value indicated in field
low
thre shold
Derivate: the input is in alarm only if the read-
ing differs from the previous reading of a value
greater than or equal to the value indicated in
field d e rivate
high thre shold
thre shold
Field editable from the user. It indicates the nu-
merical value to assign to the high threshold.
The value has to be inserted taking into account
the unit of measure of the reading.
low thre shold
Field editable from the user. It indicates the numerical value to assign to the low threshold. The
value has to be inserted taking into account the
unit of measure of the reading.
d e rivate thre shold
Field editable from the user. It indicates the nu-
merical value to assign to the derived threshold.
The value has to be inserted taking into account
the unit of measure of the reading.
vc ala rm w ith logical op e rations
Enabling this tick, the configured alarm is no lon-
ger connected to the single input. The channels
that adopt this option will be “linked” to each
other by logical operations (AND, OR, NOT and
XOR). If this field is enabled, therefore it will be
necessary to configure a virtual channel with an
opportune logical operation.
NOTE: the values inserted in alarm thresholds have to take into account the
possible linear or polynomial conversion that has been configured. If the user
configured a conversion, the threshold values have to be inserted in engineering unit. If the user didn’t configured any conversion, the thresholds values
have to be inserted in electrical unit.
046
• Once the configuration of webpage ended, or of 2 webpages in case of a channel with 2
inputs, push save modifications to confirm the created configuration.
• It is possible to visualize the scheme of connection of the just configured channel pushing
on wiring scheme in page local channels configuration.
Figure 29
Multiplexer Configuration
Here is shown the standard configuration of an sensor connected to a channel of the multiplexer.
• Open page local channel configuration and select the item channels configuration/
local from left menu;
Figure 30
Figure 31
047
• Tick the field add Mux24 ;
• Enable the new channel created, with position 22-23-24, and click edit;
• The page for the configuration of multiplexers opens;
Figure 32
NOTE: selecting Mux 24ch on channel 22-23-24 it couldn’t be possible to use them to connect a sensor
Figure 33
• after you saved the configuration, select from left menu the entry
tion / multiplexers;
• the page multiplexers opens. Here you could select mux 24ch.
048
channels configura-
Figure 34
• thus, the page multiplexer enabling opens. Thanks to the tick enable it is possible, pushing on edit, to configure the channels of the selected multiplexer-.
NOTE: it is possible to enable at most 16 multiplexers. We advise to enable only the multiplexers that are used.
Figure 35
049
• then, the page multiplexer configuration opens. This page allows the sensors insertion
thanks to three buttons: add 6 wires sensor, add 4 wires sensor and add 2 wires sensor.
Figure 36
• for example, if you push on button add 4 wires sensor in the underlying table a 4 wires
sensors is added and it is possible to configure it.
Figure 37
• pushing on edit it is possible to set up all sensor parameters, as you do for a local analog
channel. The configuration of an analog channel on multiplexer is not different from that
of a local analog channel.
NOTE: once the configuration of all channels of multiplexer ended, it is advised
to push on LOCK. In this way, the configuration is “blocked” and the removal
of one or more sensors doesn’t modify the position of those that are configured yet.
ATTENTION: the addition of a new sensor to a multiplexer that has been already
configured could cause a change in sensors position on multiplexer channels.
In case of sensors that are physically already connected to the multiplexer, it is
necessary to check that their positions are the same. If the positions changed,
it is necessary to re-wire the sensors to the multiplexer.”
050
MODBUS SENSORS
What’s Modbus?
Modbus is a serial communication protocol, made by Modicon in 1979 to link their PLC. It has
become a de facto standard in communication protocol, and it’s now a commonly available
means of connecting industrial electronic devices.
Advantages in industrial sectors are:
• developed with industrial applications in mind
• openly published and royality-free
• easy to deploy and mantain
• moves raw bits or words without placing many restriction on vendors
Modbus enables communication among many devices connected to the same network, for
example a system that measures temperature and humidity and communicates the results to
a computer. Modbus is often used to connect a supervisory computer with a remote terminal
unit (RTU) in supervisory control and data acquisition (SCADA) systems. Many of the data
types are named from its use in driving relays: a single-bit physical output is called a coil, a
single-bit physical input is called a discrete input or a contact.
Object Type
Access
Size
Coil
Read-Write
1-bit
Discrete Input/Contact
Read-Only
1-bit
Input Register
Read-Only
16-bits
Holding Register
Read-Write
16-bits
051
Digital Sensors Con iguration
For digital sensors, the OM-240 family offers an in-depth configuration. After choosing
Baudrate and Maximum RS485 Address (Fig.1), the User can “Save Changes” and start the
con-figuration of the sensors.
Figure 38
Figure 39
By clicking “Edit” (Fig.2) on the sensor row to configure, the system shows typical sensor (IPI,
H-LEVEL, TILTMETER) and a SmartModbus element (Fig.3).
SmartModbus is selected if the User has a generic modbus sensor.
052
Figure 40
Click “Next” to proceed the configuration. Fig.4 shows MODBUS parameters. These are usually
provided by the sensor’s manufacturer and reported in either the datasheet or instruction manual.
Figure 41
Modbus Address is sensor’s modbus address, usually settable from the sensor.
Pre Measure Actions:
Some sensors require either a command or a condition to be true before actually pushing the data
in the right register.
Send Command enabled orders the OM-240 to push data (Value field) in a sensor’s
register (Reg Address (hex)). You can “Force Multiple Reg” o “Write Coil”.
053
Wait Condition enabled let the OM-240 check if Coil, Input or Holding are less, more, equal
or different from a chosen Value. It allows also to wait for a certain time.
Endianess allows to select if the sensor use a Little Endian or Big Endian data type.
Acquire Measures:
This section is the actual data reading from the modbus sensor. On most sensors, this is the
only section the User should care of.
Measure n enabled allows the OM-240 to read the register (Holding, Input or Coil) at the
speci-fied “Reg Address (hex)”. Data Type is Signed or Unsigned Integer, Float and Fixend
Point. Register Number&Order let the User choose which register and in which order data is
stored in. Usually is reported in sensor’s datasheet or instruction manual.
Endianess allows to select if the sensor use a Little Endian or Big Endian data type.
Post Measure Actions:
As Pre Measure Actions, this is not always required, but some sensors need a register to be
written in order to return in standby or reset. Settings are quite similar to Pre Measure Actions’ Send Command, which can be enabled or not, and actions are Force Multiple Reg,
Write Coil (Register Address is specified in Reg Address (hex) field) and Wait Time.
Endianess allows to select if the sensor use a Little Endian or Big Endian data type.
Output configuration and alarms 1 & 2
Figure 42
Figure 43
This are channel related settings. The user can specify channel name, a short description, and
data conversion.
054
Conversion:
Linear: if sensor output is linear, the systems needs to know Zero Point (Ez) and Sensibility(S)
and Number of Decimals (field will be enabled). The output will be equal to Sx - Ez
Polynomial: if sensor output is not linear this allows the user to specify sensor output curve,
and enable Zero Reading (Ez), Poly.Coeff. A, B, C and D and Number of Decimals. The output
will be equal to Ax3 + Bx2 + Cx + D - Ez
Engeneering Units: to complete data with the right engeneering unit like bar,°C, °F, %HR and
so on.
Number of Decimals: after linear or poly conversion, here are the number of decimal digits the
system will round the value at.
Skipped: the system will ignore this sensor
Virtual channel alarm
This section enables Logical Operations with Virtual Channels Alarm. Virtual Channels section allows logial operations between alarms, (AND, OR, XOR, NOT).
055
Tips
Multiple Sensor in one single Modbus Device
Our System allows the user to connect one single Modbus device providing information
coming from different sensors.
What if a sensor has more than 2 channels?
The OM-240 allows to create another sensor with the same Modbus address (Fig.9,10,11),
so user can select 4 (or more, creating other sensors) registers to read data from.
Pre Measure Actions (if required) will be set only in first sensor (relative to the Modbus
slave device) and Post Measure Actions will be set only in last sensor (always relative to the
Modbus slave device)”
Figure 44
Figure 45
Figure 46
056
Figure 47
Figure 48
057
DATALOGGER CONFIGURATION
Overview
This chapter will explain following webserver configuration pages:
• Change Datalogger’s name
• Acquisition speed and precision
• IoT Enabling
Configuration -> Datalogger
Figure 49
This page is dedicated to low levels tweaks to improve stability and correct readings.
058
Serial Number: This is the device serial number. It is composed by 8 decimal digits.
Identification: A short string (16 characters maximum) to identify the datalogger.
Identification is used for USB data export. Admitted characters are:
Letters (a-z, A-Z)
Numbers (0-9)
Only this special characters: ._()[]-{}
Non-admitted characters will be substituted with _ (underscore) character.
Measurement Settings (Standard, High Precision, Fast): These are 3 different measure configurations. User can also modify settings, these are recommended settings.
Fast Measurement: The datalogger does not execute analog autocalibration.
Relay Warmup: Delay time between relay activation and acquisition process
ADC Average Number: Number of average computed by Analog to Digital Converter
Simultaneous Relay Number: number of simultaneously activated relays
Relay time Gain: Relay excitation time (tens of milliseconds)
ADC Speed: ADC Sample rate, in SPS (Sample per Seconds)
Relay Discharge: before acquisition process, all relays are set to short circuit to discharge
capacitors.
Relay Reset: Optimization of relays movements
Turn Off Analog During Warm-up: during sensor’s warm-up, analog board is temporarily
turned off
Analog always on: Analog circuits are turned on at first acquisition cycle (in RUN) and
then won’t be turned off (except when CONFIG or STOP mode are set). This allows faster
acquisition rates. In Test Measure mode, analog board is turned on temporarily then turned
off again. If datalogger will go in sleep mode, analog circuit should be re-initialized at next
acquisition cycle.
Polynomial digit: This field establishes number of decimal digits for channel with Linear or
Polynomial conversions. This number is used if the channel is left at “DEFAULT”. A single
channel can override this setting in its own setting page.
059
Enable VW Tracking: This option will speed up Vibrating Wire Excitation by lowering the
time needed for frequencies scan.
VW Noise subtraction: It performs a noise analysis of the channel, to have a better SNR
after excitation.
VW Excitation: This field enables the excitation of Vibrating Wire. If it’s disabled, no
excitation will be applied while reading vibrating wire, thus making the reading impossible.
It can be used to test with functions generators.
Thermocouple break check: before TC readings, OM-240 inspects TC circuitry to check
total resistance. If value is out of thresholds, TC will be flagged as broken, and NAN, +FS
or -FS will be recorded. If Thermocouple break check is disabled, this control won’t be
executed. It is useful to disable this control when using calibrators or mV sources
connected as thermo-couple, since their behavior is not the same as Thermocouple’s wire.
FTP file name format: it allows choice between different file name’s formats.
Low Battery Alarm Threshold: An alarm will be triggered if V IN voltage drops below this
threshold.
IOT Configuration
IOT Enable: This checkbox, enables the communication with Exosite cloud. Read dedicated
chapter for more info.
WARNING: BEWARE OF ENABLING THIS FIELD. BEFORE ENABLING THIS FIELD,
BE SURE TO DELETE ALL MEASURE LOG PRESENT IN MEMORY. IF MEMORY IS
NOT CLEAR, AT THE FIRST ACQUISITION, THE DATALOGGER WILL PROCESS
EXISTING DATA AND TRY TO EXPORT TO EXOSITE CLOUD. USUALLY THIS
OPERATION REQUIRES FEW HOURS AND THE DATALOGGER WILL BE STRUCK
PROCESSING THIS DATA FOR NECESSARY TIME.
IOT Cik: This field is dedicated to the CIK field, gathered from Exosite cloud after the
creation of a device. Read dedicated chapter for more info.
Download/Upload Calibration: it allows logger calibration saving or restoring.
Default Settings Recover: It will restore default settings
Reboot: it reboots the datalogger
060
ALARMS
Overview
• OM-240 can handle alarms of both channel (reading out of a determined range) and
device (malfunction, wrong configuration etc.)
• Alarms can be recorded on Alarm logs and can be sent via SMS, EMAIL, FTP or activate
through OM-240’s Digital Output (refer to Chapter1 for more info).
• A first configuration must be done in the Alarm Configuration page (on the web server,
click on “Configuration” and “Alarms”). The following screen will be prompted.
Simple steps to configure alarms:
• Select Output
• Select “Delay”
• Select “End”
Configuration
Figure 50
In the “SENSOR” section, it is possible to select how OM-240 will handle Sensor’s
alarm: Enabling any of this checkbox will modify datalogger’s action:
• Send SMS will send an SMS (if RS232 modem is connected) with the Alarm
061
• Send email will send an email (if RS232 modem OR Ethernet connection with internet is
connected) with the Alarm, to specified recipient (see next section)
• Upload on FTP will upload the Alarm Log’s row (if RS232 modem OR Ethernet connection
with internet is connected) with the alarm triggered
• Enable Digital Output will trigger the backpanel’s terminal block to control an external
Alarm system
• Frequency increase will increase acquisition frequency to gather more information about
the event that has triggered the alarm. Acquisition Frequency is set at 1 minute when the
channel is in ALARM. If the datalogger is configured to read different sensors, and more
than one sensor is in alarm, reading frequency will probably be lower.
There are pretty much the same options in the “OM-240” Section, except for
Frequency increase.
Event Nr. Dropdown menu will let you choose the number of events in alarm at which the
datalogger triggers the alarm. 1 means at the first occurrence, 2 will skip first value in alarm,
and if it still in alarm during next acquisition the alarm will be triggered, otherwise there
will be no alarm event.
End Dropdown menu will let you choose the number of events after which the datalogger
will cease to trigger. NEVER is the option to disable this feature, and let the datalogger trigger EVERY set alarm.
After configuration, click Save to proceed.
If you selected SMS, email or FTP, the relative configuration option will be activated.
SMS Configuration
Figure 51
062
This page will let you select SMS recipient for triggered alarms.
Number: the recipient(s) of the SMS
Sensor Alarm: if you have selected SMS in sensors alarms this will let you use the current
recipient for the sensor alarm
OM-240 alarm: if you have selected SMS in OM-240 alarm this will let you use the
current recipient for the datalogger’s alarm
Add Measure in alarm: it will attach measure value to the SMS.
Text: it allows a small text writing (up to 30 characters) contained in the SMS
Tries: it makes you choose the number of tries if SMS send fail.
Click save to proceed.
Email Configuration
Figure 52
This page will let you select the email recipient for triggered alarms.
Address: the email address of the recipient
Sensor Alarm: if you have selected email in sensors alarms this will let you use the current
recipient for the sensor alarm
Datalogger alarm: if you have selected email in datalogger alarm this will let you use the
current recipient for the datalogger’s alarm
Object: email’s object
Text: a small text (30 charaxters) to be sent with email
SMTP Configuration: it will open a new page to configure SMTP parameters
Save Changes to proceed
063
SMTP Configuration
Figure 53
This page allows the setup of SMTP parameter .
SMTP Server: the smtp server to send mail
Port: port used to communicate with SMTP Server
Username and Password: Credentials to be used to send email
Retry: number of retry(ies) in case of transmission errors.
Send test email: it will send an email to check if parameters are correct
WARNING: Only standard SMTP (not encrypted) is supported.
FTP Configuration
Figure 54
064
This page allows FTP connection configuration. Sending Measure Table is related to
Measure log transfer and this is explained in the related section.
FTP Configuration table allows to setup all parameters for FTP server connection. If the
server is not on the same LAN, a 3G modem or Internet connection is required.
Server: it is the server address
Folder: it allows to specify subfolder to be used. The directory MUST exist
Username and Password: credentials used to connect to the server
Port: port used to connect to the server
Tries: number of attempts in case of failure.
Save changes to continue
WARNING: Only standard FTP (not encrypted) is supported.
Channel Alarm Types
Thresholds in OM-240 alarm settings are here described.
WARNING: all alarms evaluations are computed AFTER linear or polynomial conversion, if any.
Low and High Thresholds
Thresholds are basically limits to sensor’s ranges. If a threshold is overcome (lower value so
low threshold, or higher value so high threshold), the alarm is triggered.
Derivate
Derivate alarm will analyze, at n sample, value of n-1 sample and compare to n sample.
If value(n)-value(n-1)>threshold, an alarm is triggered.
Examples
Derivate alarm, linear conversion
(Ln*S+Lz)-(Ln-1*S+Lz) > threshold
Ln is last sample, while Ln-1 is second-last sample. S is sensibility parameter and Lz is offset
(Zero reading) in linear conversion’s channel settings.
065
DIGITAL INPUTS CONFIGURATION
The OM-240 has two digital inputs (IN1 & IN1) on its back side.
Figure 55
The digital inputs could be configured to acquire a trigger or an rain gauge or an
anemometer. The trigger could be used with a seismic station and it is used to start one or
more acquisitions extemporaneous.
NOTE: in case of a rain gauge or anemometer, no elaboration of reading is considered
(ex: average speed, maximum, instantaneous, daily storage, etc.)
066
To set up a digital input it is necessary:
• to select the entry channel configuration, then digital inputs;
• the page digital inputs configuration opens. In this page it is possible to set up 1 or
both digital inputs independently;
Figure 56
067
• in this page you could find the following fields:
inx inp ut
(X is 1 or 2)
Using the drop-down menu, it is possible to select the
type of digital input between 4 possibilities:
-
d isa b le d
-
trigge r
-
rain gauge
- w ind gauge
The input has to be configured according to the
sensor that is connected.
acquisition fre que ncy
Sampling rate of selected channel (wind gauge, rain
gauge)
se nsib ility
This field enables only for RAIN GAUGE and
ANEMOMETER. If it is well configured, it
allows to transform the counts in engineering
units (ex: from “counts” to “mm”)
e d ge
This field enables only for TRIGGER. It is possible to
select between two entries:
Up
or
d Ow N.
The state
change could be high-low (DOWN) or low-high (UP).
Therefore, if on the input generally there is no
voltage and you want to do an acquisition with the
OM-240, in case a voltage arrives on the input
(ex: 5Vdc) it is necessary to select Up. This because
you pass from a low (0Vdc) to a high (5Vdc) state.
unit m e asure
This field enables only for RAIN GAUGE and WIND
GAUGE. It indicates the unit of measure of the
read value.
num b e r of re a d ings (trigge r)
Editable field. Numerical value. This field enables
only for TRIGGER. It indicates how many
extempora-neous and consecutive acquisitions the
OM-240 has to do with a trigger. Acquisitions are
done independent-ly from the configured acquisition
interval. These data are stored and so they could be
exported in CSV file.
NOTE: If you enable the digital inputs, the OM-240 is in permanent acquisition. This
means that, even if the OM-240 is in Timed, he will never go in “low consumption”
mode. This situation has to be taken into account in case it is necessary to optimize the
consump-tions (for example with batteries or solar panel)
068
Example of digital input in1 configuration
Here is shown the standard configuration of a digital input configured as trigger.
• open page digital input configuration and select the entry channels configuration /
digital inputs from left menu;
Figure 57
• in field input in1 select trigger;
• in field edge select up;
Figure 58
NOTE: in this example it has been selected UP because we supposed there is any voltage on
digital input IN1 and that in case of a trigger, a voltage of 5Vdc is applied.
069
•In field numbEr of rEAdingS (TriggEr) insert the number of acquisitions you want that
the OM-240 does after a trigger signal (ex.5)
Figure 59
• Push save changes to confirm the configuration.
The OM-240, with this configuration, in case it receives a positive voltage on digiTAl
inpuT in1, does 5 consecutive acquisitions of all configured channels.
A practical example of the use of trigger function is that of associate OM-240 to a
Seismic Station. The majority of Seismic Stations has the possibility, in case of a seismic
event, to ac-tivated a digital output (an output voltage). If this signal is connected directly
to the digital input IN1 of the OM-240, when a seismic event happens the Seismic Station
furnishes a digital output on the digital input of the OM-240. The OM-240 starts to acquire
all connected sensors to verify the monitoring area after the event.
070
Example of digital input in2 configuration
Here is shown the standard configuration of a digital input configured as rain gauge.
• open page digital input configuration and select the entry channels configuration /
digital inputs from left menu;
Figure 60
• in field input in2 select rain gauge;
Figure 61
071
• in field sensibility insert the sensibility of sensor (for example 0.2 mm/count);
• in field unit of measure insert the unit of measure of the done conversion (example
“mm”)
Figure 62
With this configuration, the OM-240 acquires the number of impulses for a period of a
hour. Once this interval ends, the OM-240 memorizes the number of counts done during this
period of time. If for example in one hour 5 counts are detached, the OM-240 applies the
following conversion:
5 COUNT * 0.2 MM/COUNT = 1 MM
Once tche value is memorized, the counter sets to zero.
Alarm configuration is the same as all other channel types, with High, Low and Derivative
Thresholds. VC alarm with Logical Operations is present, as a Virtual Channel alarm can be
used in Virtual Channels Logical Alarms.
072
VIRTUAL CHANNELS
Overview
This chapter is focused on Virtual Channels (VC from now on), to understand why VC are
implemented on OM datalogger and how to configure them.
1. Why are Virtual Channels implemented in OM Family? – This paragraph shows benefits
of Virtual Channels
2. Scripts – Scripts are a fundamental section of Virtual Channels’ architecture.
3. Virtual Channels configuration – “HOW TO” use and configure Virtual Channels’ with
analog and digital sensors, digital input and multiplexers.
4. Common Errors – Here are shown common errors made during virtual channels creation,
and how to avoid them.
Why are Virtual Channels Implemented?
We usually use sensors to get a measure. Anyway, we could need a way to modify that
number because we need either a derived measure (airflow/airspeed) or an expression calculated on more than 1 sensor (dewpoint or Δt between two zones for instance). We can calculate this with spreadsheet or just let our datalogger do the work.
OM Family has this feature with Virtual Channels.
Virtual Cannels allows operations to be made on a single channel or between channels.
OM group them into Scripts, with a maximum of 5 scripts containing 16 virtual channels
each. Each Virtual Channel can handle up to 9 elements (including Virtual Channel beloning
to the same script).
Figure 63
073
Scripts
OM-240 automatically provides the script name during its creation. Acquisition timing
can be chosen between 1 second and 7 days, with “DEFAULT” option not overriding
OM-240 global acquisition timing.
After selecting “Create” button the new script will be listed below:
Figure 64
Edit button allows the configuration of Virtual Channels contained by the selected Script. As we
see in following Figure, OM-240 provides a large toolbox to program Virtual Channels.
Figure 65
074
Figure 66
an: selects an analog channel (prompts a dialog box to input channel number)
dig: selects a digital channel (prompts a dialog box to input channel number)
mux: selects multiplexer position (prompts two dialog boxes, the 1st for channel number,
the 2nd for mux address)
cv: selects a virtual channel (only those included in the same script, prompts a dialog box for
CV number)
Apart from this we have mathematics operations, like +, -, *, /, sin, cos, tan, pi-value.
Logical operations allow operations between alarms states. Every channel (analog, digital, virtual and mux) provides a checkbox in alarm configuration, VC Alarm with Logical
Operations. This enables alarms to be handled by virtual channels.
Figure 67
The following Virtual Channel will trigger an alarm only if one of the two channels is in
alarm.
Figure 68
075
an(1.A)
an(2.A)
an(1.A) XOR an(2.A)
F
F
F
F
V
V
V
F
V
V
V
F
an(1.A)
an(2.A)
an(1.A) AND an(2.A)
F
F
F
F
V
F
V
F
F
V
V
F
an(1.A)
an(2.A)
an(1.A) OR an(2.A)
F
F
F
F
V
V
V
F
V
V
V
V
an(1.A)
NOT an(1.A)
F
V
V
F
Virtual Channel Configuration
By clicking “config” in the Virtual Channel row (Figure 23) the user can edit Identification (channel
name) and alarm properties.
Figure 69
076
Alarm configuration is the same for all channel types, with High, Low and Derivative
Thresholds. VC alarm with Logical Operation is present, as a Virtual Channel alarm can be
used in Virtual Channels Logical Alarms.
Common Errors and Warnings
In order to write Virtual Channel’s formula correctly, you should avoid typing the whole
formula in the dialog box prompted by the system.
G
N
O
R
W
Figure 70
Figure 71
077
As you can see this causes an error.
Formula has to be written using keys printed on the screen. The prompt should be used
ONLY to write channel number.
The same procedure applies for dig, mux and cv buttons.
Figure 72
Figure 73
WARNING: Channel B (1.B, 2.B, and so on) can’t be used on Virtual Channels. If you need
to use the channel B of a multiaxis sensor, like Voltage 2CH, Vibrating Wire + Thermistor,
and all others, you should use 2 separate channels during configuration.
078
ADVANCED CONFIGURATION
Overview
Advanced parameters are explained in this section.
•Connection configuration, for Ethernet and 3G modem parameters
•Measure log transfer, for FTP server configuration
•Account management, to change account passwords
•Date and Time, to change timezone or set daytime saving
•Energy management, to improve power consumption especially if battery powered
•Information about firmware versions, mac address, bootloader
This section will show how to configure Advanced parameters in the OM-240’s web server.
Connections
Figure 74
This page allows to set network parameters.
In the first block you select which connection will be used by OM-240 to send Email and
FTP files.
Network Card Configuration
DHCP Enable: to choose whether or not to use DHCP or specify network parameters
079
IP Address, Subnet Mask and Default Gateway, DNS Servers addresses depend on network
infrastructure.
Figure 75
This settings are related to 3G modem. Parameters are usually provided by telephone
operator. WARNING: Remember to set DNS also on RS232 2G/3G modem.
080
Measure log data transfer
Figure 76
This page contains data transfer settings.
Sending Measure block allows to choose the way to send data:
None: no data transfer
Email: data will be transferred via email
FTP: data will be transferred via FTP
FTP Configuration block contains the configuration to create an FTP connection with a
user’s server.
081
Account Management
Figure 77
Here it is possible to change the passwords for User and Admin accounts, and to change
web language.
082
Date and Time
Figure 78
In this screen it’s possible to change date, hour and Timezone.
083
Energy Management
Figure 79
This page is about Energy Management.
OM-240 can work in 2 modes:
Always On: the datalogger does not turn off itself to save energy, Ethernet connection is
available.
Timed: The datalogger turns off itself, waking up few minutes before acquisition starting.
VOUT port can be kept always on, or timed.
Info
This page contains information about firmware, web, bootloader and model. Note this
parameters in case of assistance enquiry.
CHARTS
Overview
OM240 is provided with a simple tool to generate Charts. It’s available on request and need
to be activated with a Purchased Key. Contact your dealer for more information.
It’s possible to export data and save charts as pdf, png or vector files.
084
Activation
In order to activate charts, you have to buy a key from dealer. Load Data Monitor -> Charts
page and insert the key in the right field and click Submit button.
Figure 80
Setup and Use
From the Web Server pages go in “Data Monitor” and then click “Charts”. This screen will
be loaded.
Figure 28
Figure 81
No chart is available at this time, and we need to create one.
Click on “Configure chart” to proceed.
The next screen will ask for Start and Stop date, and you will need a Logarithmic scale
(Log scale check) to allow different unit channels to fit the same chart and be readable.
085
Figure 82
Click Next to proceed.
Sensor select screen allows channels selection, so you choose which channel(s) you want to
include in the chart. One or more sensors should be selected to go further on.
Axis selection create up to 3 vertical axis related to that channel. If different scales are presents, this solves readability troubles.
Figure 83
086
Color window let the user select the color of that channels. A full palette is available.
Figure 84
Marker checkbox, will put markes points on the charts as shown here (AN_0001 has Marker
checked, other channels instead do not).
Figure 85
Click Next to go on last configuration screen.
Here it is possible to choose Chart’s Title, Subtitle, Description and Name.
087
Figure 86
Click “Plot data” to load the chart.
Figure 87
From this screen it’s possible to print or download the chart:
088
Figure 88
You can now select the new chart from “Saved charts selection” and Plot every time you
need. It can be autoupdated after every new acquisition event by checking autoupdate flag,
or manually updated with “update” button, in bottom left area of the window.
Figure 89
089
MODBUS TCP (SCADA INTEGRATION)
Overview
Modbus ADU (application data unit) is sent in form of TCP packets. All Modbus TCP ADU
are sent via TCP to registered port 502.
Modbus over TCP allows OM-240 integration in LabVIEW and SCADA systems. By
reading holding registers, it’s possible to gather all sensors data (analog, smartmodbus,
multiplexers, digital inputs), events and alarm, datalogger status and information.
• It’s possible to read sensor’s alarm status.
• By integrating OM-240 in a SCADA, industrial plant remote monitoring and logging are
possible without the need on-site visits.
• Maintenance costs are reduced through centralized control and monitoring to minimize
downtime.
• Centralized alarms to improve operational effectiveness.
• Data could be available in mobility (depending on used SCADA).
COMMUNICATION
Communication Bus
Communication bus for this module is Ethernet interface.
Port used for TCP communication is 502 (Modbus TCP Standard Port)
Modbus function to use for registry reading is ReadHoldingRegister.
Measure Register
For each sensor (analogs, digitals, multiplexers and virtual channels), 16 registers will be
exported. Input A’s last acquired measure (Offset 0-1), input b (Offset 2-3), sensor’s temperature (Offset 4-5), Acquisition’s timestamp (Offset 6-7-8-9-10-11-12-13-14) and different flags
to show acquisition status and alarm status (Offset 15).
Measures will be communicated in float IEEE754 standard.
Endialess can be user configured by writing 0-1-2-3 values into configuration register at
0x5000 address.
Following table will represent 4 endianless configurations:
IEEE754 = AA:BB:CC:DD
AA = MSB
DD = LSB
Configuration=0 (default)
090
AA
BB
CC
DD
AA
DD
CC
DD
BB
AA
CC
AA
BB
MSB Modbus address LSB Modbus address 0
0
MSB Modbus address LSB Modbus address 1
1
Configuration=1
BB
MSB Modbus address LSB Modbus address 0
0
MSB Modbus address LSB Modbus address 1
1
Configuration=2
CC
MSB Modbus address LSB Modbus address 0
0
MSB Modbus address LSB Modbus address 1
1
Configuration=3
DD
MSB Modbus address 0 LSB Modbus address 0
MSB Modbus address 1 LSB Modbus address 1
Timestamp details
Timestamp is composed by 9 registers, with offset 6 (MSB) to 15 (LSB). Timestamp is an ASCII
string 18 bytes long, in the following format: “dd/mm/yy hh:mm:ss”
Flag’s Register
Flag’s register is mapped as it follows:
BIT
Content
1
A valid Input
0
2
3
4
5
6
Sensor acquired
B valid Input
Valid Temp input
A alarm Input
B alarm Input
Temp alarm Input
091
Sensor Acquired
This register is set to 1 when sensor is acquired and a new data is available. SCADA (or
Modbus Master) reads the updated register and reset it to 0 by using Coils Functions. In this
way the system is ready to note the presence of a new acquisition.
This BIT is also accessible through read/write coils functions.
Coils are mapped on flag “Sensor Acquired” having referral to base address of each sensor.
To obtain Coil address of a sensor, Use the following formula:
Coil Address = Base Address/10
Base Address computation will be shown in next pages.
Example 1
Channel: CH4
Base Address: 30
Coil Address: 3
Example 2
Channel: DIG2
Base Address: 90
Coil Address: 9
By using Coil functions, Modbus Master will be able to read the entire Coil Vector (858
sensors) in a single Modbus transaction, to understand acquired sensors and to read only
updated measures, without the need to read the 10 registers block every time.
Input X Valid
It indicates if matching Inputs are valid or not.
If sensor is configured as Volt 1CH, registers status will be:
• Input A Valid: 1
• Input B Valid: 0
• Input temp Valid: 0
For a digital single channel sensor, registers status will be:
• Input A Valid: 1
• Input temp Valid: 1
• Input B Valid: 0
Input X Alarm
It indicates if matching inputs are in alarm.
092
REGISTER MAP
General
All this registers are read-only.
Only “Sensor Acquired” BIT is read-write, using Write single/multiple coils.
Analog Sensors Locations
Register Address (dec)
Description
Sensor
0-1
MSB-LSB Input A LOCAL CH1
CH1
2-3
MSB-LSB Input B LOCAL CH1
CH1
4-5
MSB-LSB Temperature LOCAL CH1
CH1
6-14
Timestamp acquisition LOCAL CH1
CH1
15
Flags LOCAL CH1
CH1
16-17
MSB-LSB Input A LOCAL CH2
CH2
18-19
MSB-LSB Input B LOCAL CH2
CH2
20-21
MSB-LSB Temperature LOCAL CH2
CH2
22-30
Timestamp acquisition LOCAL CH2
CH2
31
Flags LOCAL CH2
CH2
112-113
MSB-LSB Input A LOCAL CH8
CH8
114-115
MSB-LSB Input B LOCAL CH8
CH8
116-117
MSB-LSB Temperature LOCAL CH8
CH8
118-126
Timestamp acquisition LOCAL CH8
CH8
127
Flags LOCAL CH8
CH8
MSB-LSB Input A DIGITAL 1
DIG1
MSB-LSB Input B DIGITAL 1
DIG1
…
…
…
…
Digital Sensors Locations
BASE_DIG+0 BASE_DIG+1
BASE_DIG+2 BASE_DIG+3
093
BASE_DIG+2 -
MSB-LSB Input B DIGITAL 1
DIG1
MSB-LSB Temperature DIGITAL 1
DIG1
Timestamp acquisition DIGITAL 1
DIG1
BASE_DIG+15
Flags DIGITAL 1
DIG1
…
…
…
…
…
…
…
…
…
BASE_DIG+4048 - BASE_DIG+4049
MSB-LSB Input A DIGITAL 254
DIG254
BASE_DIG+4050 - BASE_DIG+4051
MSB-LSB Input B DIGITAL 254
DIG254
BASE_DIG+4052 - BASE_DIG+4053
MSB-LSB Temperature DIGITAL 254
DIG254
BASE_DIG+4054 - BASE_DIG+4062
Timestamp acquisition DIGITAL 254
DIG254
BASE_DIG+4063
Flags DIGITAL 254
DIG254
MSB-LSB Input A MUX 1- CH1
MUX1 - CH1
MSB-LSB Input B MUX 1- CH1
MUX1 - CH1
MSB-LSB Temperature MUX 1- CH1
MUX1 - CH1
Timestamp acquisition MUX 1- CH1
MUX1 - CH1
Flags MUX 1- CH1
MUX1 - CH1
BASE_DIG+3
BASE_DIG+4 BASE_DIG+5
BASE_DIG+6 BASE_DIG+14
Multiplexers Sensors Locations
BASE_MUX+0 BASE_MUX+1
BASE_MUX+2 BASE_MUX+3
BASE_MUX+4 BASE_MUX+5
BASE_MUX+6 BASE_MUX+14
BASE_MUX+15
094
…
…
…
…
…
…
…
…
…
MSB-LSB Input A MUX 1- CH32
MUX1 - CH32
MSB-LSB Input B MUX 1- CH32
MUX1 - CH32
MSB-LSB Temperature MUX 1- CH32
MUX1 - CH32
Timestamp acquisition MUX 1- CH32
MUX1 - CH32
Flags MUX 1- CH32
MUX1 - CH32
MSB-LSB Input A MUX 2- CH1
MUX2 - CH1
MSB-LSB Input B MUX 2- CH1
MUX2 - CH1
MSB-LSB Temperature MUX 2- CH1
MUX2 - CH1
Timestamp acquisition MUX 2- CH1
MUX2 - CH1
BASE_MUX+527
Flags MUX 2- CH1
MUX2 - CH1
…
…
…
…
…
…
…
MUX3
MUX3
…
MUX4
MUX4
…
…
…
BASE_MUX+496 BASE_MUX+497
BASE_MUX+498 BASE_MUX+499
BASE_MUX+500 BASE_MUX+501
BASE_MUX+502 BASE_MUX+510
BASE_MUX+511
BASE_MUX+512 BASE_MUX+513
BASE_MUX+514 BASE_MUX+515
BASE_MUX+516 BASE_MUX+517
BASE_MUX+518 BASE_MUX+526
095
…
…
…
…
MUX15 CH1
MUX15 - CH1
…
…
…
MSB-LSB Input A MUX_16 - CH_32
MUX16 - CH32
MSB-LSB Input B MUX_16 - CH_32
MUX16 - CH32
BASE_MUX+8176 BASE_MUX+8177
BASE_MUX+8178 BASE_MUX+8179
BASE_MUX+8180 BASE_MUX+8181
BASE_MUX+8182 BASE_MUX+8190
BASE_MUX+8191
MSB-LSB Temperature MUX_16 - CH_32 MUX16 - CH32
Timestamp acquisition MUX_16 - CH_32
MUX16 - CH32
Flags MUX_16 - CH_32
MUX16 - CH32
MSB-LSB Input A DigIn1
DigIn1
MSB-LSB Input B DigIn1
DigIn1
MSB-LSB Temperature DigIn1
DigIn1
Timestamp acquisition DigIn1
DigIn1
Flags DigIn1
DigIn1
MSB-LSB Input A DigIn2
DigIn2
MSB-LSB Input B DigIn2
DigIn2
MSB-LSB Temperature DigIn2
DigIn2
Digital Inputs Locations
BASE_DIN+0 BASE_DIN+1
BASE_DIN+2 BASE_DIN+3
BASE_DIN+4 BASE_DIN+5
BASE_DIN+6 BASE_DIN+14
BASE_DIN+15
BASE_DIN+16 BASE_DIN+17
BASE_DIN+18 BASE_DIN+19
BASE_DIN+20 BASE_DIN+21
096
Virtual Channels Locations
BASE_DIN+22 -
Timestamp acquisition DigIn2
DigIn2
Flags DigIn2
DigIn2
MSB-LSB Input A Script1 Ch1
Script1 - Ch1
MSB-LSB Input B Script1 Ch1
Script1 - Ch1
MSB-LSB Temperature Script1 Ch1
Script1 - Ch1
Timestamp acquisition Script1 Ch1
Script1 - Ch1
Flags Script1 Ch1
Script1 - Ch1
MSB-LSB Input A Script1 Ch2
Script1 - Ch2
MSB-LSB Input B Script1 Ch2
Script1 - Ch2
MSB-LSB Temperature Script1 Ch2
Script1 - Ch2
Timestamp acquisition Script1 Ch2
Script1 - Ch2
BASE_VIRT+31
Flags Script1 Ch2
Script1 - Ch2
…
…
…
…
…
…
…
…
…
MSB-LSB Input A Script5 Ch16
Script5 - Ch16
MSB-LSB Input B Script5 Ch16
Script5 - Ch16
MSB-LSB Temperature Script5 Ch16
Script5 - Ch16
BASE_DIN+30
BASE_DIN+31
BASE_VIRT+0 BASE_VIRT+1
BASE_VIRT+2 BASE_VIRT+3
BASE_VIRT+4 BASE_VIRT+5
BASE_VIRT+6 BASE_VIRT+14
BASE_VIRT+15
BASE_VIRT+16 BASE_VIRT+17
BASE_VIRT+18 BASE_VIRT+19
BASE_VIRT+20 BASE_VIRT+21
BASE_VIRT+22 BASE_VIRT+30
BASE_VIRT+1264 BASE_VIRT+1265
BASE_VIRT+1266 BASE_VIRT+1267
BASE_VIRT+1268 BASE_VIRT+1269
097
BASE_VIRT+1270 BASE_VIRT+1278
BASE_VIRT+1279
Timestamp acquisition Script5 Ch16
Script5 - Ch16
Flags Script5 Ch16
Script5 - Ch16
SENSORS BASE ADDRESS
Following formulas will show how to get every connected sensor’s base address.
Local Sensors (Analog)
BASE_ANALOG = 0
Channel_ADDRESS = (Channel-1)*16 + BASE_ANALOG
8CH Channel = [1;8]
24CH Channel = [1;24]
Digital Sensors (Smart Modbus)
8CH
B A S E _ 128
DIG
24CH
384
Channel_ADDRESS = (Channel-1)*16 + BASE_DIG
Channel = [1;254]
Multiplexer Sensors
BASE_MUX
8 CH
24 CH
4224
4480
Channel_ADDRESS = ((Address-1)*32*16)+((Channel-1)*16)+BASE_MUX
Address = [1;16], Channel = [1;24]
Digital Inputs
BASE_DIN
8 CH
24 CH
12416
12672
Channel_ADDRESS = ((Channel-1)*16) + BASE_DIN
Channel = [1;2]
098
Virtual Channels
8 CH
BASE_VIRT
24 CH
12448 12704
Channel_ADDRESS = ((Script-1)*16*16)+((Channel-1)*16)+BASE_VIRT
Script = [1;5], Channel = [1;16]
Event Log Registers
This register set handles Event Log status.
For every log, timestamp, and code is exposed.
This register set starts at Modbus address 0x3800 (14336 DEC).
Register
Description
14346
Event Code n
14336 - 14344
14347-14410
14411 – 14419
14421
14422-14485
…
…
…
15816 – 15824
15826
15827-15890
Timestamp Event n
Event n
Event String n
Event n
Timestamp Event n-1
Event Code n -1
Event String n -1
…
…
…
Timestamp Event n -19
Event Code n -19
Event String n -19
Event n
Event n-1
Event n-1
Event n-1
…
…
…
Event n-19
Event n-19
Event n-19
099
STATUS REGISTERS
This register exposes information about the datalogger. Base Address for this register is
0x4000 (16384 DEC)
It can be read in every way, as there is no bond on alignments or number of registers to read.
Register (dec)
Description
16385
Next acquisition MSB
16384
16386
16387
16388
16389
16390
16391
16392
16393
16394
16395
16396
16397
16398
16399
16400
16401
16402
16402
16403
16404
16405
16406
16407
16408
16405
16406
16407
16408
16409
0100
Datalogger status
Next acquisition
Next acquisition LSB
Firmware version MSB
Firmware version LSB
Model info 1
Model info 2
Model info 3
Model info 4
Model info 5
Model info 6
Model info 7
Model info 8
Model info 9
Model info 10
Model info 11
Model info 12
Serial number 1
Serial number 2
Serial number 3
Serial number 4
Device name 1
Device name 2
Device name 3
Device name 4
Device name 5
Device name 6
Device name 7
Device name 8
External digital input status (LSB) + External digital output status (MSB)
Datalogger Status
This register contains datalogger status.
Register Value Description
1
Ready
3
Stop
2
4
5
6
7
8
Run
Configuration
Alarm
Diagnostic
Error
Backup
Next Acquisition
This register, composed by 48 bits, exposes next acquisition’s timestamp, when the datalogger acquires the next sensor.
Bit
Description
6-11
Minutes (0-59)
0-5
12-16
17-21
22-25
26-32
33-47
Seconds (0-59)
Hours (0-23)
Day (1-31)
Month (1-12)
Year (0-99)
Reserved
Firmware Version
These two registers, composed in the format A.B.CD, expose firmware version loaded on the
datalogger
Register
Bits
Description
Firmware version MSB
7-0
B
Firmware version MSB
Firmware version LSB
Firmware version LSB
15-8
15-8
7-0
A
C
D
Letters A, B and C, contain binary value of versions (values from 0 to 99).
Letter D contains, if present, ASCII value of alphanumeric character that could be present at the
end of the version string to identify special firmwares. If D is not present, its value will be 0.
0101
Model Info
This register, when chained, forms a 24 character string to identify configured datalogger
model.
Chaining should be executed starting from Model info 1 to Model info 12 registers.
Example:
Model info 1 MSB Model info 1 LSB
Model info 2 MSB
Model info 2 LSB
Model info 3 MSB
Model info 3 LSB
M
X
L
O
G
A
Serial Number
This register, when chained, forms an 8 characters long string to identify datalogger’s serial
number. Chaining should be executed starting from Serial Number 1 to Serial Number 4
registers.
Example:
Serial num. 1 Serial num. 1 Serial num. 2 Serial num. 2 Serial num. 3 Serial num. 3 Serial num. 4 Serial num. 4
MSB
LSB
MSB
LSB
MSB
LSB
MSB
LSB
1
5
2
1
4
7
9
6
Device Name
This register, when chained, forms a 16 characters string which represents datalogger’s
name. Chaining must be executed starting from Device name 1 register to Device name 8
register.
Example of Device name register’s chaining (Device name: Bridge_1)
Device name
1 MSB
Device name 1
LSB
Device name 2
MSB
Device name 2
LSB
Device name 3
MSB
Device name 3
LSB
Device name
4 MSB
Device name
4 LSB
B
r
i
d
g
e
_
1
External digital input/outputs status
This register contains digital input/output current status.
MSB
It contains external digital output status
LSB
It contains external digital input status
B15
#
0102
B14
#
B13
O6
B12
O5
B11
O4
B10
O3
B9
O2
B8
O1
B7
#
B6
#
B5
I6
B4
I5
B3
I4
B2
I3
B1
I2
B0
I1
TROUBLESHOOTING
In case of OM-240 malfunctioning or irregular behavior, read the following pages and
carry out the indicated attempts before contacting our Assistance Department.
BASIC TROUBLESHOOTING
This paragraph provides basic OM-240 troubleshooting tips.
ARE YOU UP-TO-DATE?
1. Verify that you installed the last version of firmware
2. Verify that you have an adequate power supply (from photovoltaic module or external
power supply) on the V IN clamp of the OM-240; check if the voltage is within the
range accepted by the OM-240 and stable.
IF THE OM-240 DOESN’T TURN
ON. Follow this step, testing after each:
1. remove power supply on V IN clamp for 10 seconds and try to reconnect.
2. verify the presence of jumper cables on the “PWR CONFIG” clamp
3. control that the power supply system works, is correctly sized and respects the
character-istic declared on datasheet
4. make sure you hadn’t set the OM-240 in Timed mode using the webpage “Energy
management”
NOTE: if on the display appears TELNET MODE, contact directly OMEGA Assistancetechnical support for assistance.
IF THE OM-240 DISPLAY STOPS RESPONDING
Follow this step, testing after each:
1. remove power supply on V IN clamp for 10 seconds and try to reconnect.
IT IS IMPOSSIBLE TO UPLOAD THE CONFIGURATION
Follow this step, testing after each:
1. on webpage STATUS verify that the OM-240 is in “Config”
2. make sure that the configuration you are trying to upload has been created with the same
major release of the firmware on the OM-240.
0103
NOTE: if what is written above is correct, the configuration file could be damaged. In this
case, the OM-240 warns with an error message and the file is no more usable. We suggest
to repeat the configuration.
IF THE OM-240 STOPS DURING AN ACQUISITION
Follow this step, testing after each:
1. verify the events log and refer to manual “Codes Alarms-Events” to understand the
eventual logs
2. verify that the OM-240 is correctly supplied. If the power supply is below the
minimum threshold or over the maximum threshold of power supply, the OM-240
blocks every activity in progress;
3. verify the alarm log to identify the problem and refer to manual “Codes Alarms-Events”
to understand the eventual logs
4. Verify if in alarm logs there is an “overcurrent” error. In case of overcurrent, the
OM-240 stops the acquisition.
5. verify the available memory. In case of full memory, the OM-240 stops the acquisition.
IT IS IMPOSSIBLE TO HAVE ACCESS TO SYS MENU
Follow this step, testing after each::
1. verify that the OM-240 is not acquiring. In this case, wait until the end of the acquisition or
go in “DL” menu and select “Stop DL”
IT IS NOT POSSIBLE TO DOWNLOAD DATA ON USB FLASH-DRIVE
Follow this step, testing after each:
1. verify that the USB flash-drive is formatted in FAT32;
2. verify with the PC that the USB flash-drive is read without any errors.
3. try with a different USB flash-drive
LOCAL/REMOTE COMMUNICATION
This paragraph provides OM-240 local communication (from PC through a LAN cable)
and remote communication (from PC through internet) troubleshooting tips.
ARE YOU UP TO DATE?
1. Verify that you installed the last version of firmware
2. Verify that you have the correct power supply (from photovoltaic module or external
pow-er supply) on the V IN clamp of the OM-240
0104
IF YOU ARE NOT ABLE TO ESTABLISH THE CONNECTION WITH THE OM-240 .
Follow this step, testing after each:
1. remove the power supply on V IN clamp for 10 seconds and try to reconnect.
2. reboot the PC and try to connect
3. make sure you configured appropriately the network card of the PC, that is it is part of the
same subnet mask of the OM-240.
4. make sure you are using the correct LAN cable according to the type of network you chose.
5. make sure the OM-240 is not configured in “Timed”. In this case the network card
remains switched off. It is necessary to turn it on manually from SYS menu.
6. make sure the OM-240 is not used by another user. The OM-240 accepts only one
connec-tion at a time.
7. make sure that the last user that logged on the OM-240 had logged out. Otherwise, it
is necessary to wait until the automatic log out. This happens after the time configured
in page “Energy management” has passed. You could also reboot the OM-240, in order to
not wait for the log out.
8. in case of use of remote communication devices (ex: HSPA router connected to the
OM-240), remove them and do a test of direct connection between PC and the OM-240.
This is neces-sary in order to exclude problems with communication interfaces.
IF USER CANNOT HAVE ACCESS TO THE OM-240 WITH AN USER Follow this step,
testing after each:
1. make sure that the access credentials are correct
2. if you logged out with a n user and you are trying to enter again with a different user,
delete the browser cache, close and re-open the browser (some browsers are configured in
order to memorize passwords)
3. make sure that the last user that logged on the OM-240 had logged out. Otherwise, it
is necessary to wait until the automatic log out. This happens after the time configured
in page “Energy management” has passed. You could also reboot the OM-240, in order to
not wait for the log out.
4. in case of use of remote communication devices (ex: HSPA router connected to OM-240),
remove them and do a test of direct connection between PC and OM-240. This is necessary
in order to exclude problems with communication interfaces.
THE CONNECTION TROUGH THE OM-240 AND COMPUTER GOES
DOWN. Follow this step, testing after each:
1. be sure that your PC is not set on Energy Saving mode
2. Try to change the LAN cable
3. Try using another LAN port of your PC or using another PC
4. verify that the OM-240 is not in Timed mode. In this case, once ended the timeout
time configured in webpage “Energy management”, the network card turns off if there
isn’t any data exchange.
0105
E-MAIL SENDING
ARE YOU UP TO DATE?
1. Verify that you installed the last version of firmware
2. Verify that you have the correct power supply (from photovoltaic module or external
pow-er supply) on the V IN clamp of the OM-240
This paragraph provides OM-240 e-mail sending troubleshooting tips.
THE E-MAIL TRANSMISSION INVOLVES DIFFERENT DEVICES. IN THIS
DOCUMENT, WE TRY TO DETERMINE WHICH DEVICE COULD CAUSE THE
PROBLEM AND THEN WE TRY TO SOLVE IT.
The “system” is composed as follows:
1. OM-240
2. Internet Service Provider (ISP): allows the communication between OM-240 and the e-mail server
3. E-mail Server (ESP): allows to send and to receive e-mails
NOTE: it may be that the ISP (Telecom, Vodafone, AT&T, Verizon, etc.) doesn’t
coincide with the ESP (Gmail, AOL, etc.)
Resolution
FIRST OF ALL, INSURE WITH YOUR IPSP THAT:
1. The SIM card or your network is enabled to the internet
2. The e-mail transmission is allowed on the used APN or on the used network
SECONDLY, INSURE WITH YOUR ESP THAT:
1. there are no momentary breakdowns on ESP server
2. the username and password of your e-mail account are valid and accepted
3. that the e-mail account you want to use is active
THESE POINTS DO NOT DEPEND ON OMEGA ENGINEERING AND NEED TO BE
RESOLVED THROUGH YOUR ISP OR ESP.
If you don’t have any problem with the ISP and the ESP, you could proceed looking for
causes on the OM-240.
0106
IF THE OM-240 DOESN’T SEND ANY E-MAIL ALTHOUGH IT IS
CONFIGURED. Follow this step, testing after each:
1. verify the events log and refer to manual “Codes Alarms-Events” to understand eventual
logs
2. verify that the SIM is properly inserted in its slot into the communication device (HSPA
router or 2G modem) or that your network devices are properly configured to permit the
e-mail sending (firewall, port, etc)
3. verify that you inserted your SMTP server account correctly (“SMTP Server
Configuration” page)
4. verify that the SMTP account is a simple authentication. The OM-240 doesn’t support SSL.
5. If you use a communication device base on mobile network, verify that there is a mobile
coverage (according to the adopted technology e.g: 2G, 3G or 4G) on the site where the
OM-240 is installed.
6. If you use a 2G (GSM/GPRS) modem, verify that there is a good 2G signal where the
OM-240 is installed. In some place there is only a 3G or 4G coverage. 2G modem is
not compatible with 3G, 4G and CDMA networks.
0107
FTP SERVER SENDING DATA
ARE YOU UP-TO-DATE?
1. Verify that you installed the last version of firmware
2. Verify that you have the correct power supply (from photovoltaic module or external
pow-er supply) on the V IN clamp of the OM-240
THIS PARAGRAPH PROVIDES FTP SERVER SENDING DATA TROUBLESHOOTING TIPS.
The FTP transmission involves different devices. In this document, we try to determine which
device could cause the problem and then we try to solve it.
The “System” is composed as follows:
1. OM-240
2. Internet Service Provider (ISP): allows the communication between the OM-240 and
FTP server
3. server FTP: physical space in which it is possible to memorize files
NOTE: the FTP server could be completely transferred to societies that offer an
hosting FTP service. It could also be internal. In this second case, you have to
ask for information to your IT manager.
FIRST OF ALL, INSURE WITH YOUR ISP THAT:
1. The SIM card or your network is enabled to the internet traffic through APN
2. The data transmission on FTP server is allowed on the used APN or on the used network
INSURE WITH YOUR SYSTEM ADMINISTRATOR OR WITH THE SOCIETY THAT
SUPPLIES THE HOSTING FTP SERVICE THAT:
1. there are no momentary breakdowns on FTP server
2. the username and password of FTP account are valid and accepted
3. the FTP account and the same FTP server that will be used are active
THESE POINTS DO NOT DEPEND ON OMEGA ENGINEERING AND NEED TO BE
RESOLVED THROUGH YOUR ISP OR ESP
If you don’t have any problem with the ISP and the FTP server, you could proceed looking for
causes on the OM-240.
IF THE OM-240 DOESN’T SEND ANY DATA ON FTP SERVER ALSO IF CONFIGURED.
0108
Follow this step, testing after each:
1. verify the events log and refer to manual “Codes Alarms-Events” to understand the possible logs
2. if you use a HSPA router or 2G modem verify that the SIM card is properly inserted in its slot.
3. verify that you have inserted your FTP server account correctly (“Measure log data transfer” page)
4. verify that the FTP server is a basic authentication FTP (for example not MD5, KERBEROS
etc.) and that doesn’t utilize any secure layer (for example SSH/SSL, FTPS/SFTP etc.). The
OM-240 does not support secure layer and encrypted authentication (encrypted
username and password).
5. if you use a mobile device, verify that there is a good coverage on the site were the
OM-240 is installed.
6. if you use 2G (GSM/GPRS) modem, verify that there is a good 2G (GSM/GPRS) signal on
the site were the OM-240 is installed. In some place there is only a 3G or 4G coverage.
2G modem is not compatible with 3G, 4G and CDMA networks .
MEASURE
ARE YOU UP-TO-DATE?
1. Verify that you installed the last version of firmware
2. Verify that you have the correct power supply (from photovoltaic module or external
pow-er supply) on the V IN clamp of the OM-240
This paragraph provides measure instruments troubleshooting tips.
ONE OR MORE VIBRATING WIRE INSTRUMENTS ARE NOT READ.
Follow this step, testing after each:
1. verify the events log and refer to the manual “Codes Alarms-Events” to understand the
eventual logs;
2. verify the instrument with a portable OM-240;
3. verify the connection of instruments on the OM-240 inputs;
4. change the parameters “Excitation time” (accepted values from 5 to 100) and “Delay
Time” (accepted values from 20 to 100) focusing on this last one;
5. try to contract the parameters “Start Frequency” and “End Frequency” according to the
value read with the portable OM-240,
6. consult the reference manual of the instrument
0109
ONE OR MORE ANALOG INSTRUMENTS ARE NOT READ.
Follow this step, testing after each:
1. verify the events log and refer to the manual “Codes Alarms-Events” to understand the
eventual logs;
2. verify the instrument with a portable OM-240;
3. verify the connection of instruments on the OM-240 screw clamps;
4. verify that the configured parameters are coherent and correct according to the type of
connected instrument (power supply, warm-up time etc)
5. consult the reference manual of the instrument
APPENDIX
APPENDIX A: WIRING SCHEMES
This appendix will show how to connect different sensor types to OM-240
datalogger. Connection schemes are sorted by number of wires (2,4,6 wires).
2 WIRES SENSORS
Current Loop 2 Wires
Figure 116
0110
4..20mA Transmitter (External Supply)
Figure 117
Servo Uni Axial (External Supply)
Figure 118
0111
Thermistor
Figure 119
Thermocouple
Figure 120
0112
Vibrating Wire
Figure 121
Voltage (External Supply)
Figure 122
0113
4 Wires
4..20 Transmitter
Figure 123
4..20 Transmitter 2 channel (External Supply)
Figure 124
0114
Current Loop 2 Channels (Internal and External Supply)
Figure 125
Potenziometer 4 Wires
Figure 126
0115
Potenziometer (2 Channel)
Figure 127
PT100/PT200/PT500/PT1000
Figure 128
0116
Ratiometric (External Supply)
Figure 129
Servo BiAxial (External Supply)
Figure 130
0117
Vibrating Wire with Thermistor (NTC)
Figure 131
Voltage
Figure 132
0118
Voltage 2 channels (External supply)
Figure 133
6 Wires
2..40mA Transmitter 2 channels
Figure 134
0119
Ratiometric
Figure 135
Servo Biaxial
Figure 136
Figure 136
0120
Servo UniAxial (5 Wires)
Figure 137
Voltage 2 channel
Figure 138
0121
MAINTENANCE
In the event that you need after-sale calibration, service or repair of your OM-240, please
con-tact Omega’s Customer Service Department for an Authorized Return (AR) No.
Omega Customer Service
email: cservice@omega.com
Phone: 1-800-622-2378
0122
SPECIFICATION
SPECIFICATIONS
• On-Board Web Server
• 24 Differential Analog Input Channels
• Measures: Thermocouples, PT100 RTD, NTC Thermistor, mV, mA, mV/V
• View Data in real Time or Store to 2 GB Internal Memory
• Available GPRS Modem
• Expandable up to 384 channels with multiplexers
• Ethernet, RS485, RS232 and USB Connections
• SMS and e-mail Alerts
The OM-240 is a versatile, high accuracy “smart” data acquisition system with 24
analog inputs. It can be used in a wide range of applications including HVAC, oil and
gas, water quality, energy and building monitoring. With the OM-240 no other
configuration/analysis software package is needed as it is provided with a Web server on
board; just use a standard Web browser and it is ready to use. Logged data is ready to be
shown in graphic “real time” mode (License required) or exported in a CSV file.
0123
SPECIFICATION
CPU AND MEMORY
• Processor: ARM Cortex-M3 MCU with 1 MB Flash, 120 MHz CPU, ART Accelerator,
Ethernet
• RAM Memory: 1 Mbyte RAM
• Mass Storage: 2 GB SD card for data (about 5 Mega data points) and Web pages
• Clock accuracy: High precision RTC (real time clock with battery back-up) temperature
compensated
• On-Board Sensors: Temperature (accuracy ±1%), measured inside the datalogger
ANALOG INPUTS
Number of Inputs: 24 differential analog inputs, individually configured. Channel expansion provided by multiplexers. There are 8 terminal blocks (each terminal block can handle
up to 3 sensors). The OM-240 is designed to work with 2 to 6-wire sensors. You can connect
2-wire sensors on each channel and read 24 sensors, or 4-wire sensor and read 12 channels.
The system will order sensors depending on how many wires they use, placing 6 wires sensors first, 4 wires in the middle, and 2 wires last.
Once software configuration is done, clicking on “Wiring scheme” button on the web interface near the sensors will show how to physically connect the chosen sensor to the block. It
shows “relative” position, so if you start connecting sensors from the first you will not have
to leave “unused” positions (except for the ground connection of every block, if not used).
Multiplexers are needed if the total “wires” from sensors exceeds the 48 provided by the
OM-240.
0124
SPECIFICATION
ANALOG MEASUREMENTS
Measurement Rate
Analog Initialization (±10V range)
Instrument Warm-Up
Measurement (±10V range)
Maximum Speed
Standard Speed
1.70 sec
7.10 sec
Depends on sensor configuration
80 ms
1.57 sec
Times indicated are not valid for vibrating wire measures
Init analog phase is made only once before measurement cycle
ADC: 24-bit (22 true bit) differential analog-to-digital converters, 5SPS to 1000SPS, 0-24 average function, auto-calibration and auto-range
ANALOG INPUT TYPES
Current Loop (2 Wires): 0 to 25 mA range; power supply: 24/10 Vdc, external
Transmitter (3-4 Wires): 0 to 25 mA range; power supply: 24/10 Vdc, external
Voltage (4 Wires): ±10 mV, ±100 mV, ±1V, ±10V ranges; power supply: 24/20/10/5Vdc,
external
Servo Inclinometer: ±5V range; power supply: ± 12 Vdc (dual), external
Wheatstone Bridge (6 Wires, With Sensing): ±10mV/V range; power supply: 10/5 Vdc,
external (max 10 Vdc)
Minimum bridge resistance: 200 Ω; power supply: 10/5 Vdc, external (max 10 Vdc)
Potentiometer: ±2.5V range; power supply: 10/5 Vdc
0125
SPECIFICATION
Thermocouple Input Types and Ranges
THERMOCOUPLE (LOGGER @ 25°C AMBIENT TEMPERATURE)
TC TYPE
RANGE
ERROR
TC-K
From -200 °C to 1370°C
±1,24 °C
TC-B
From 600 °C to 1820 °C
±1,22 °C
TC-J
From -200 °C to 1200 °C
±1,04 °C
TC-T
From -200 °C to 400 °C
±1,99 °C
TC-E
From -200 °C to 1000 °C
±0,93 °C
TC-R
From -20 °C to 1760 °C
±1,64 °C
TC-N
From -260°C to 1300°C
±1,24 °C
TC-S
From -20 °C to 1760 °C
±1,64 °C
RTD Input: 100Ω Platinum (Pt100/200/500/1000)
RTD: range -195 to 847°C (-319 to 1556°F);
Power supply: 1.2 mA
Thermistor (3000 Ω@25°C NTC):
Range: -50 to 0°C (-58 to 32°F) maximum error ± 2°C (± 3,6°F)
Range: 0°C to 150°C (32 to 302°F) maximum error ± 1°C (± 1,8°F)
Power supply: 0.05 mA /0.1 mA/1.2 mA
Reading Resolution:
1 µA at FS for 20 mA range;
1 µV at FS for ±10 mV range;
10 µV at FS for ±100 mV range;
100 µV at FS for ±1 V range;
1 mV at FS for ±10 V range;
0.1 °C for Pt100 RTD;
0.1 °C for NTC thermistor;
0.1 Hz for 6000 Hz range;
0.001 mV/V at FS for ±10 mV/V (Wheatstone bridge)
0126
Measurement Accuracy:
0.01% mV/mA FS (0.17% FS for Pt100/Pt200/Pt500/Pt1000) - with Standard Measurement
Temperature Drift: < 10 ppm/°C, range -30 to 70°C
Input Noise Voltage: 5.42 µV pp
Input Limits : ±12V
DC Common Mode Rejection: >105 dB
Normal Mode Rejection: >90 dB
Input Impedance: 20 MΩ typical
Switched Output Power Supply: The voltage ‘V OUT’ is switched on and off under program
control. V OUT is the unregulated input power supply ‘V IN’ (2 A)
DIGITAL I/O
Digital Output: One relay output (for alarm, etc.): volt-free closure (low voltage 30V, 2A)
Digital Inputs: Two opto-isolated digital inputs individually selectable for switch closure.
Max Input Voltage: 24V (max current: 10mA)
Min Input Voltage: 5V (max current: 2mA)
Measurement Rate (MR): max frequency 1 kHz
Accuracy: 0.1 Hz
PROTECTION:
• Electro-Mechanical Relays for Measuring Each Channel:
Electrical Endurance: min 2 x 105 operations
Mechanical Endurance: 100 x 106 operations.
• Circuit Protection (Gas Discharge Tubes):
DC Breakdown Voltage (@100V/s): 75V
Tolerance of DCBV: ± 20%
Impulse Breakdown Voltage (@100v/µs ): 250V
Impulse Breakdown Voltage (@1kv/µs ): 525V
• Overvoltage and Reverse Polarity Protection
Short Circuit Protection on Every Output
0127
SPECIFICATION
INTERFACES
Display & Keyboard: Small backlight graphic LCD 128 x 64 dpi with membrane keyboard
for the minimal local management without the PC. Keyboard for starting a data acquisition
scan, sequential display of the last stored readings for each channel (sensor ID, converted
unit reading, unit of measure), device status, data download and firmware/Web pages
update by USB pen drive, safe mode (back-up/format/restore internal SD card).
LAN Ethernet Isolated: 10/100 Mbps, RJ45
RS232: 9-pin, DE9: DCE port for optional GSM/GPRS modem connection
Baud Rates: selectable from 9600 bps to 115.2 kbps
Default Format: 8 data bits; 1 stop bits; no parity
USB: USB 2.0 pen drive only (FAT 32), 5 V 200 mA
RS485#1 OPTO-ISOLATED:
Connection: 5 screw clamp port for max. No.254 Modbus RS485 digital bus sensors
Communication Interface: RS485
Communication Protocol: MODBUS RTU
Voltage ‘V OUT’: Switched on and off under program control. V OUT is the unregulated input power supply ‘V IN’ (1 A).
Power supply management: Always on or energy safe
RS485#2 OPTO-ISOLATED:
Connection: 5 screw clamp port for max. 16 multiplexer boards connection.
Communication interface: RS485
Communication protocol: MODBUS RTU
Voltage ‘V OUT’: Switched on and off under program control. V OUT is the unregulated input power supply ‘V IN’ (1 A).
Every channel of each multiplexer board is completely independent.
SOFTWARE & FIRMWARE:
• Web server on board (independent OS platform)
• Live update (firmware and web pages)
• Acquisition Time Interval: selectable from 1 second up to 1 week (depends on the number
of channels acquired)
• FTP client to send data/alarms on an FTP server (SFTP not supported)
0128
SPECIFICATION
• MAIL to send data/alarms to max 5 email address (SMTPS / SSL not supported)
• SMS to send alarms to max 5 telephone numbers
• Data download (readings, logs) in .csv file (compatible with Microsoft Excel)
• Virtual channels management
• Languages: Italian, English and French
SYSTEM POWER REQUIREMENTS
Voltage (External Power Supply): 10 to 30 Vdc (reverse polarity protected), max 5A
External Rechargeable Batteries: 12 Vdc nominal
Typical Current Drain (@12 Vdc, External Power Supply):
Sleep Mode(MAX): 315 µA
ON: 62 mA - ON with ethernet connected: 87 mA - ON with display ON: 115 mA
ON with display ON and ethernet connected: 142 mA
Analog Initialization: 115 mA
Measurement: 123 mA (with 12 mA @ 24 V sensor consumption)
ENVIROMENTAL CONDITIONS
Operating Temperature: -30 to 60°C (display -20 to 60°C)
Storage Temperature: -40 to 85°C (display -30 to 80°C)
Relative Humidity: 80 %RH
Overvoltage Category: II
Pollution Degree: 2
Sound Levels: < 74 dBA
Maximum Height of Use: 3000 m (9800 ft)
PHYSICAL CHARACTERISTICS
Weight: 980 g (2.16 lb)
Dimensions: 231 L x 138 W x 117 mm H (9.09 x 5.43 x 4.61”)
Material: Plastic and metal
Wiring: Removable screw terminal connectors
0129
SPECIFICATION
To Order
Model No.
Description
24-channel Ethernet data logger with embedded web server
GSM/3G modem for OM-240
Spare 12 Vdc power supply for OM-240
Comes complete with 12 Vdc power supply, Ethernet cable, USB thumb drive.
Ordering Example: OM-240 24-channel Ethernet data logger with embedded web server.
0130
SPECIFICATION
WARRANTY/DISCLAIMER
OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a
period of 13 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month
grace period to the normal one (1) year product warranty to cover handling and shipping time. This
ensures that OMEGA’s customers receive maximum coverage on each product.
If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service
Department will issue an Authorized Return (AR) number immediately upon phone or written request.
Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no
charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser,
including but not limited to mishandling, improper interfacing, operation outside of design limits,
improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of
having been tampered with or shows evidence of having been damaged as a result of excessive corrosion;
or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating
conditions outside of OMEGA’s control. Components in which wear is not warranted, include but are not
limited to contact points, fuses, and triacs.
OMEGA is pleased to offer suggestions on the use of its various products. However,
OMEGA neither assumes responsibility for any omissions or errors nor assumes liability
for any damages that result from the use of its products in accordance with information provided
by OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by
the company will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR
REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT
OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF
LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total liability of
OMEGA with respect to this order, whether based on contract, warranty, negligence,
indemnification, strict liability or otherwise, shall not exceed the purchase price of the
component upon which liability is based. In no event shall OMEGA be liable for
consequential, incidental or special damages.
CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic
Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical
applications or used on humans. Should any Product(s) be used in or with any nuclear installation or
activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility
as set forth in our basic WARRANTY/DISCLAIMER language, and, additionally, purchaser will indemnify
OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the
Product(s) in such a manner.
RETURN REQUESTS/INQUIRIES
Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department.
BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED
RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID
PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return
package and on any correspondence.
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent
breakage in transit.
FOR NON-WARRANTY REPAIRS, consult OMEGA
FOR WARRANTY RETURNS, please have the
for current repair charges. Have the following
following information available BEFORE contacting
information available BEFORE contacting
OMEGA:
OMEGA:
1. Purchase Order number under which the product
1. Purchase Order number to cover the COST
was PURCHASED,
of the repair,
2. Model and serial number of the product under
2. Model and serial number of the product, and
warranty, and
3. Repair instructions and/or specific problems
3. Repair instructions and/or specific problems
relative to the product.
relative to the product.
OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible.
This affords our customers the latest in technology and engineering.
OMEGA is a trademark of OMEGA ENGINEERING, INC.
© Copyright 2018 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied,
photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable form, in
whole or in part, without the0131 prior written consent of OMEGA ENGINEERING, INC.
Where Do I Find Everything I Need for
Process Measurement and Control?
OMEGA…Of Course!
Shop online at omega.com
TEMPERATURE
M
U Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies
M
U Wire: Thermocouple, RTD & Thermistor
M
U Calibrators & Ice Point References
M
U Recorders, Controllers & Process Monitors
M
U Infrared Pyrometers
PRESSURE, STRAIN AND FORCE
M
U Transducers & Strain Gages
M
U Load Cells & Pressure Gages
M
U Displacement Transducers
M
U Instrumentation & Accessories
FLOW/LEVEL
M
U Rotameters, Gas Mass Flowmeters & Flow Computers
M
U Air Velocity Indicators
M
U Turbine/Paddlewheel Systems
M
U Totalizers & Batch Controllers
pH/CONDUCTIVITY
M
U pH Electrodes, Testers & Accessories
M
U Benchtop/Laboratory Meters
M
U Controllers, Calibrators, Simulators & Pumps
M
U Industrial pH & Conductivity Equipment
DATA ACQUISITION
M
U Communications-Based Acquisition Systems
M
U Data Logging Systems
M
U Wireless Sensors, Transmitters, & Receivers
M
U Signal Conditioners
M
U Data Acquisition Software
HEATERS
M
U Heating Cable
M
U Cartridge & Strip Heaters
M
U Immersion & Band Heaters
M
U Flexible Heaters
M
U Laboratory Heaters
ENVIRONMENTAL
MONITORING AND CONTROL
M
U Metering & Control Instrumentation
M
U Refractometers
M
U Pumps & Tubing
M
U Air, Soil & Water Monitors
M
U Industrial Water & Wastewater Treatment
M
U pH, Conductivity & Dissolved Oxygen Instruments
M5639/0918
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