Microlink 840 User Manual - Microlink Measurement and Control
Contents
1. Figure 3 1 Creating a Site 2 Click the Add a New Site button and type a name for the site 3 The File Prefix ties together many sites the data for all sites with an identical File Prefix will be collected as a single overall site For exam ple you may have Microlink 840s gathering data in three locations If the File Prefix is S1 then all logged data will be sent to the same file under directory name S1 4 The Installation Date defines the date from which the software will scan for accrued data It defaults to today s date but you can enter any date you wish Enter the correct IP address for example 192 168 1 61 47471 6 When using a modem to transfer data enter the modem s dial up num ber Include only figures not spaces commas etc Remember to allow for additional dialling numbers such as those required for external lines 7 Save the site information and the ML840 Viewer stores the details in a text file called sites xml You can now connect to the site you have created as detailed in the previous section Establishing Communications with the 840 3 3 Configuring the Microlink 840 3 3 zeng the 840 s Clock Connect to a Windmill Site the Logger Details box appears Choose the Logger Settings tab 2 The Clock is the date and time which is currently set inside the ML840 Logger To set this to match the computer press the Reset button The Microlink maintains a count of seconds it has no in2. the busy light will be off If it goes on when you talk to the unit then you can see to which one you are talking and confirm that the software has found it Calculated Channels aren t being Logged In VT Viewer select the Program Setup menu If the Additional Reports box is not ticked your calculated channel settings will be ignored When the Additional Reports box is ticked daily and weekly totals are created according to your calculated channel definitions Calculated Channels aren t being Logged 4 1 Fault Finding 4 4 TCP IP Timeout If you receive a TCP IP timeout error increase the timeout setting 1 Inthe ML840 Viewer choose the Program Setup menu and select the Communications tab 2 Increase the Timeout setting TCP IP Timeout 4 2 Index Index accumulating counter see total counter additional reports 3 15 3 17 alarm 3 8 10 analogue input 2 3 3 5 3 7 8 3 12 average 3 12 busy light 2 1 calculated channels 3 14 15 3 17 channels 3 4 7 clock 3 4 collecting data 3 17 20 Communications tab 3 21 22 Connect Direct to an Ethernet logger 3 1 3 Connect to a Windmill site 3 2 3 connections 2 2 contact closure inputs 2 3 counter 3 5 3 7 8 3 11 accumulating 3 6 frequency 3 6 3 11 period 3 7 3 11 total 3 6 creating a site 3 2 3 current signals 2 3 data files 3 16 data format MySQL 3 19 text 1 1 xml files 3 17 Data Storage tab 3 11 12 decimal places 3 17 digital input 3 4 6 3 8 3 11 digital
3. 1 2s Run the setup exe program The software is normally installed into the C Program Files x86 Windmill Software Windmill folder where c is the drive on which Windows is running Two other folders are created c windmill setups for details of the program settings and c windmill data for your data files Installing the Microlink 840 on an ememe or Wi Fi Network Connect your Microlink to a network enabled PC over Ethernet You can use a crossover cable to make a direct connection or connect through a hub via normal UTP Ethernet cables For Wi Fi networks use an Ethernet cable to connect the Microlink to a Wi Fi router Allow 10 seconds for the Microlink 840 to boot up From the Windows Start menu choose the Windmill Software pro gram group Select ML840 Viewer See the next chapter for details of using the ML840 Viewer software to configure your Microlink The Microlink s Lights The Microlink 840 has two lights labelled Busy and Power The Busy light comes on when the software talks to that Microlink 840 and remains on un til the software talks to another Microlink If you only have one Microlink 840 then the light will remain permanently on The Power light is on when the Microlink is powered up The Microlink s Lights ZA Installing the Microlink 840 2 4 Screw Terminal Connections Wire your signals to the Microlink screw terminal connectors as follows 1 Signal ground 2 channel 0
4. 3 channel 1 4 channel 2 5 channel 3 6 channel 4 7 channel 5 8 channel 6 9 channel 7 10 no connection 11 power OV 12 power 12V 2 5 Microlink 840 Inputs Adapting for Special Purposes The following notes are for when you want to customise the Microlink 840 unit This may have been done at the factory for you or may not be neces sary in which case you can ignore this section The 840 PCB has an area next to the screw terminal to which series resistors SO to S7 and bias resistors BO to B7 can be fitted These can be used to adapt the inputs for special purposes 3V3 UP Bx input Sx npu Screw lt Terminal Processor x Cut Output Bx j z gt OV DOWN Figure 2 1 Microlink 840 The S resistors can be used to mount a resistor in series with the inputs They are normally shorted out by a PCB trace on the component side of the PCB You should cut this trace with a scalpel before adding the resistors Microlink 840 Inputs Adapting for Special Purposes 2 2 Installing the Microlink 840 The B resistors can be fitted between a fixed PCB hole and either the UP or DOWN holes as marked on the PCB Fitting to the UP hole connects the resistor to 3 3 Volts Fitting to the DOWN hole connects it to the 0 V 2 5 1 Contact Closure Inputs Add a Bx resistor in the UP position A closed contact will then read 0 whilst an open contact wil
5. Information Save Site Changes IMSfile Close Site Details Input Channels Calculated Channels Scheduled Scaling Defined Channels Channel Details ChannelName Combined __ Count Formula aici Calculated Channel Units yisits I Delete Clear Import Hardware Cancel Channels Accept Chan5_Max Chan6 Figure 3 9 Defining Calculations 2 Click the Add New button The Channel Details area appears 3 Type a name for the Calculated channel into the Channel Name box Make this different to any other calculated or hardware channels Spaces will be removed Performing Calculations 3 14 Configuring the Microlink 840 4 Construct a formula for calculating the new value To adda channel to the formula click the Import Hardware Channels button Now double click a channel to add it to the formula For the formula to work hard ware channels need to be enclosed in square brackets This is done automatically if you double click a channel in the list You can construct more complicated formulae if needed The Opera tors are supported The order of operations is Itis best to use brackets to avoid any ambiguity about the order of calculation 5 Type the units of your calculation volts bars counts or visits for example 6 Press Accept to save the new calculated channel 7 Repeat for as many calculated channels as you need then press OK Deleting Calculated Channels To
6. ML840 Viewer program 1 Connect to a Windmill Site and choose the Readings tab from the Logger Details box The values from all the channels on this logger are shown even if they are not enabled for storage in the logger There can up to 32 channels on a logger These come from the 8 hardware channels which can be digital input digital output or analogue input channels and minimum maximum and averaged data for each channel e Digital inputs can be Counting inputs either 16 or 32 bit counters Frequency or period counting e process value current frequency or period e maximum value e minimum value e Digital outputs e Digital status the momentary value of the 8 digital input lines e Analogue inputs can be a process value the current analogue input value a average the average over the epoch time a minimum the lowest value in this epoch maximum the highest value in this epoch 3 Setting What Happens When an Alarm Occurs You can set two alarms on each hardware channel typically a warning and acritical alarm On an alarm condition a message can be sent to a computer on the network and a digital output switched perhaps to sound a buzzer or turn on a light 1 Connect to a Windmill Site and choose the Alarms tab from the Logger Details box Setting What Happens When an Alarm Occurs 3 8 Configuring the Microlink 840 2 Click Alarm 0 to enable the first set of alarms for example the critical alarms T
7. closed the freezer You only want to be alerted when the temperature remains over the limit for a certain time 8 When you choose to send a message to a computer on the network you need to enter the Destination IP address of the computer If the com puter is on a different subnet you will also need the subnet mask and Setting What Happens When an Alarm Occurs 3 9 Configuring the Microlink 840 Gateway IP address You can ignore the Name Server IP address Your target computer needs a small Windmill application running on it to receive the message 9 When you are happy with your settings press the Apply button You can now set up alarm conditions on individual channels 3 7 1 Setting Alarm Levels on Invidual Channels When you ve set what happens when an alarm occurs you can configure the alarms for individual channels 1 In the Alarm tab Figure 3 5 click the channel s number The Alarm Input box appears al amp Alarm 0 Input 0 So aj x MV Enable Input for Alarm Input is of Counter Type Alarm Logic Alarm Level Direct Alarm 100 gt Combination Alarm Counts Enter your Alarm Level here Then use the buttone to find the nearest Alarm Source possible value c Alarm gt level C Alam lt level C Input State Alarm Count Alarm c Apply Cancel 4 Figure 3 6 Specifying alarm conditions 2 Tick Enable Input for Alarm 3 Choose whether an alarm is to be rai
8. data values Tick Completed day files to Postbox if you want daily files to be stored in the data Postbox directory as the daily file is completed Use this if you have another application that is collecting data from the daily files and you do not want to be re reading partially complete files The daily data file will be stored in windmill data postbox directory Tick Upload new settings from Postbox if you want a new settings file xml can be placed in the setups Postbox and will be uploaded to the ML840 unit after the next data collection event The program looks for the files in the windmill setups postbox directory 3 15 4 Storing Data in a MySQL Database WM Collect stores data in text files and optionally xml files You can tell it to also send data directly to a MySQL database Collecting Data 1 2 In the opening ML840 Viewer screen choose Program Setup Choose the MySQL tab A separate database called iml is created Within iml 4 tables are created e The iml_channels_table holds the names of the channels for logged data that will be found in the main iml_data_table The fields are a site_prefix a channel_name A Collecting Data Configuring the Microlink 840 sensor_error display_group associates this channel into a group so summaries for the group can be made e The iml_daily_table holds summary data for each completed day The fields are site_prefix channel_name channel_status
9. delete a calculated channel select it from the Defined Channels list and press the Delete button If you are part way through creating a new channel and have not yet pressed the Accept button you can just press the Cancel button The Clear button removes the formula leaving you with a blank box but does not remove the channel Turning Off Calculations If you wish to temporarily turn off calculations but don t wish to delete all the ones you have entered you can do so Select the Program Setup menu If the Additional Reports box is not ticked your calculated channel settings will be ignored When the Additional Reports box is ticked daily and weekly totals are created according to your calculated channel definitions The Results of the Calculation When a complete set of data for a particular day has been read from the Microlink 840s the calculated channels file is processed and the calcula tion results appended to the file Weekly files containing the daily totals are also prepared 3 11 Making a Site Inactive If a site is not collecting data for example an experiment has been closed for maintenance or an IP connection is not available you can mark the site as inactive Data will not then be collected from that site 1 Inthe VT Viewer choose the Site Manager menu 2 Inthe Site Details tab tick Site is Offline and will not be accessed Making a Site Inactive 3 15 Configuring the Microlink 840 3 12 Setting where Data
10. in the recorded epoch e The averaged frequency over the epoch These options are controlled through the Data Storage page Period Measurement Period measurement counts the time between pulses You can use it for ex ample to record the total time a machine was on The firnware in the 840 can also record e The maximum period between pulses in the recorded epoch e The minimum period in the recorded epoch e The averaged period over the epoch e These options are controlled through the Data Storage page 3 5 3 Configuring an Analogue Channel There is one setting you can change when configuring an analogue channel here the input range Configure Channel 7 Calculate Input Division 1 Input Division Factor Input Voltage Range 1 4013E 45 Digital Input Digital Output Cancel Figure 3 4 Configuring an Analogue Channel e By default the 840 can handle inputs in the range 0 to 3 3 V DC e For signals larger than this you can use resistance dividers to set the range to be for example 0 5 V or 0 10 V You can ask for this to be done before the Microlink 840 leaves the factory or can add resistors to the Microlink yourself See Section 2 5 for details If necessary enter the appropriate division factor e For bipolar signals for example 5 V see Section 2 5 Specifying Channels to be Analogue or Digital 3 7 Configuring the Microlink 840 3 6 Showing Real Time Readings You can see current readings with the
11. is Stored By default the data is stored in c windmil 1 data and setup files i n c windmill setups You can move the windmill folder elsewhere but you need to tell the ML840 Viewer where it is 1 In the opening ML840 Viewer screen choose Program Setup 2 In the General tab enter the new location in the File Locations box Save Setup Changes Close Schedules Communications Options mysql File locations Setup files C windmillssetups Data files C windmill data Data in Monthly Directories Iv Data Tables Epochs per day 24 0 000 For daily files not starting at midnight Data time offset hh mm Data Format Additional Reports Create xml data files Turn on consistency checking Iv 00 00 r r Save Changes Figure 3 10 Program Setup Options If Data in Monthly Directories is ticked then the daily data files will be placed in a folder called C windmill data site_prefix mmyy where mmyy is the current month and year otherwise all the files will appear in c windmill data site_prefix 3 13 Setting the Format of Data Files Data is saved in tables in text files You can also save data as xml files and export it toa MySQL database Data is saved at regular intervals or epochs To choose how to save data Setting the Format of Data Files 3 16 Configuring the Microlink 840 1 Inthe opening M
12. reading date the date for this set of data sum the total of each channel for the day count number of epochs in the day for calculating means etc max maximum value for any epoch during the day min minimum value for any epoch during the day e The iml_data_table holds data values for each channel at each epoch time for each site are found here The fields are site_prefix channel_name channel_status reading_time the end of the epoch to which this data value belongs reading_raw the value actually read from the logger may later be adjusted to a different reading_value reading_value the data value to be used for this epoch upload_time the date time at which this data value was uploaded from the logger e The iml_sites_table holds the names and other details of each site in the ML840 system The fields are site_prefix site_name the full name of the site site_port the communications port for this site e g the IP address last_upload the date time of the last dat upload from this site Used to check for sites where communications fail logger_error the last error code received from the logger You will normally pull data from the iml_data_table into your own data base for use with other data sets you are collecting To keep the iml_data_table relatively small it is possible to delete data values after a re tention period of 1 or more months 3 Enter the IP address of the server where th
13. x x x x x Figure 3 7 Setting which data you want to store in the Logger For counters choose 16 or 32 bit counts 16 bit allows counting up to 65000 32 bit allows counting to over 16 million 16 bit counts occupy less space in the Logger so data can be saved over a longer period without being overwritten For 16 bit set Count LSW to 1 and Count MSW to 0 click the current value to change For 32 bit set both Count settings to 1 To store frequency or period values click the Process box so a 1 is shown If you are unable to do this and an x remains you haven t en abled that channel for frequency or period counting Section 3 5 2 discusses how to do this To save the state of digital inputs at the end of the epoch logging interval tick Record the Status of digital inputs Setting which data you want to store in the 840 Logger 3 14 Configuring the Microlink 840 5 You can also store maximum minimum and average values over the epoch for each channel 6 You can store the last analogue input value of the epoch by enabling process but it is probably more useful to store the average maximum and minimum values Note that if you update the storage allocation in the Microlink Logger as detailed above you will lose all existing saved data After updating you may need to change engineering units names etc for the channels Do this in the Input Channels box Section 3 9 and click the Read Channels from Hardwa
14. L840 Viewer screen choose Program Setup 2 Inthe General tab look for the Data Tables section 3 The epochs per day is the number of rows in the daily table This may not be the same as the number of epochs the logger will store during the day A value of 24 gives hourly counts or readings in the table A value of 96 gives counts or readings every 15 minutes in the table 4 You can choose the number of decimal places you want to see in the data file For example for 3 decimal places use 0 000 For data which will be an integer like counts use 0 5 If you are using calculated channels then tick the Additional Reports box 6 Youcan choose to have data files saved in xml files as well as in text files Tick the Create xml data files box 7 The tables in the data file usually start at midnight and contain a day s data However if you want to start logging at a different time you can do so Just enter how long after midnight you want to start into the Data time offset box 3 14 Understanding Error Messages 1 Connect to a Windmill Site and choose the Errors tab from the Logger Details box 2 Zeroes mean no errors For others click on Interpret and a box explaining the meaning of the error appears 3 15 Collecting Data Collecting Data You can regularly download blocks or epochs of data from the Microlink 840 using the WM Collect utility Data will be saved as text files and op tionally can be saved as xml files a
15. Microlink 840 User Manual Manual Code ML840 1 0 Issue Date October 2011 Information in this manual is subject to change without notice Updates are listed on our web site at http Awww microlink co uk techsupp html Biodata Limited 2011 10 Stocks Street Manchester M8 8QG UK Tel 0161 834 6688 Fax 0161 833 2198 E mail sales microlink co uk http www microlink co uk E mail sales wmsoft com http www windmillsoft com Table of Contents Table of Contents 1 Introduction 2 Installing the Microlink 840 2 1 22 2 3 2 4 2 5 2 6 Installing the Software Installing the Microlink 840 on an Ethernet or Wi Fi Network The Microlink s Lights Screw Terminal Connections Microlink 840 Inputs Adapting for Special Purposes Microlink 840 Digital Outputs 3 Configuring the Microlink 840 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 Running the ML840 Viewer Software Establishing Communications with the 840 Setting the 840 s Clock Setting the Epoch Length Specifying Channels to be Analogue or Digital Showing Real Time Readings Setting What Happens When an Alarm Occurs Setting which data you want to store in the 840 Logger Configuring Input Channels Naming Enabling Scaling and Setting Units 3 10 Performing Calculations 3 11 Making a Site Inactive 3 12 Setting where Data is Stored 3 13 Setting the Format of Data Files 3 14 Understanding Error Messages 3 15 Collecting Data 3 16 E mailing Data an
16. able a channel click its code number and its status will be changed Y ou can also click its current Enabled setting to change To change the units of measurement click the current units and typein a new one When you change the units you will also need to tell the software how to scale the data so that it is displayed accurately in the new units T his uses the formula New Engineering Units Scale x Standard Units Offset For example if a pressure transducer produces 0 volts output at 1 atmosphere rising smoothly to 10 volts at 5 atmospheres then to obtain the reading in atmospheres you need scale 0 4 offset 1 0 Similarly temperatures can be displayed in Fahrenheit by setting scale 1 8 offset 32 and voltages can be displayed in millivolts by setting scale 1000 offset 0 Configuring Input Channels Naming Enabling Scaling and Setting Units 3l Configuring the Microlink 840 If you plan to use the standard Windmill software suite to collect or display data in real time eg Windmill Logger Chart or DDE Panel select IMS File from the menu bar You can then load this setup file into the other Windmill programs 3 10 Performing Calculations You can perform calculations on the data and store the results in the logged data file Your calculations are saved as it they were normal hardware channels 3 10 1 Defining Calculations 1 Choose the Site Manager menu and select the Calculated Channels tab Site
17. d Reports 4 Fault Finding 4 1 4 2 4 3 4 4 No Route to Host Error Can the Software Contact the Logger Calculated Channels aren t being Logged TCP IP Timeout Microlink 840 User Manual 1 1 2 1 2 1 2 1 2 1 2 2 2 2 2 4 3 1 3 1 3 1 3 4 3 4 3 4 3 8 3 8 3 11 3 12 3 14 3 15 3 16 3 16 3 17 3 17 3 21 4 1 4 1 4 1 4 1 4 2 Introduction 1 Introduction The culmination of 30 years experience of designing data acquisition and control systems the Microlink 840 logger is our most versatile unit yet You can use it anywhere on an Ethernet network or over the Internet and can 1 P 5 6 7 8 Monitor analogue transducers for example pressure temperature force voltage and 4 20 mA current Monitor Digital Sensors for example flow meters Monitor Utility Meters for example electricity and gas meters Monitor machines for example recording percentage on off times and counting items produced Monitor digital status for example count switch closures Control digital outputs Count totals frequency periods pulse widths and elapsed time Save minimum maximum and averaged values Logged data is exported as text files You can also export it as xml files En ergy Lens compatible files or send it directly to a MySQL database Microlink 840 User Manual Ll 2 Installing the Microlink 840 Installing the Microlink 840 2 1 2 2 2 3 Installing the Software
18. e Microlink and make sure that you can communicate with it You can then Establishing Communications with the 840 3 1 Configuring the Microlink 840 create a site and in future connect to that The site holds the configuration details for all the Microlinks on your network 3 2 1 Connecting to Directly to Microlink 840 Logger Do this when you want to e Check the settings of the ML840 for example the clock and enabled channels e Find the IP address of the unit e Change the IP to a temporary IP address so that your PC can communicate with it e Make a permanent change to the IP address of the ML840 When connecting directly to ML840 you can only have one Microlink on the network Otherwise you may change the IP addresses of all the units on the network This would result in you being unable to contact any of them It is best to use a crossover lead and to have a one to one connection with the ML840 1 From the opening ML840 Viewer screen choose the Connect to a Windmill Site menu then select Direct to an Ethernet Logger 2 Type in the IP addresses for example 192 168 1 61 and port 47471 and click Connect The Logger details box appears where you can con figure channels alarms and so on 3 If the software can communicate with the Microlink the BUSY light will come on the unit 3 2 2 Connecting to a Site A site allows you to communicate with one or more Microlinks These must all have the same IP addresses For d
19. e mySQL database is to be found into the MySQL database server box If it is on this computer 3 20 Configuring the Microlink 840 then either give the IP address of the computer if it is on a network or 127 0 0 0 if it is standalone 4 Enter the version of the MySQL driver installed on this PC into the Driver box The current version is MySQL 5 1 ODBC Driver 5 Enter the login details for the MySQL system into the Username and Password box 6 Inthe Dataretention box data values older than the number of months specified will be deleted from the iml_data_table as new data is ac quired Use 0 if you want data to be kept in the iml_data_table 3 15 5 Using the Windmill Suite to Display and Log data in Real Time 1 Select Site Manager and go to the Input Channels tab 2 Choose the IMS File menu option This generates an ims file for this Microlink 840 The file will be called prefix_LO_yymmdd ims and saved in the windmill setups directory 3 When you start a Windmill program like Logger DDE Panel or Chart from its File menu choose Load Hardware Setup and choose the pre fix_LO_yymmdd ims file For more details of using any of these programs click its Help button 3 16 E mailing Data and Reports You can e mail data and settings files to people 1 Choose the Program Setup menu and select the Communications tab E mailing Data and Reports 3 21 Configuring the Microlink 840 Save Setup Changes Close i Ge
20. eight hardware channels each of can be configured as one of e Digital Input for example to monitor a contact closure Specifying Channels to be Analogue or Digital 3 4 Configuring the Microlink 840 e Digital Output for example to provide a logic signal to switch other equipment e Analogue Input for example a 0 3 3 V DC voltage 3 5 1 Setting a Channel to be Digital or Analogue 1 Connect to a Windmill Site and and from the Logger Details box choose the Input Output tab 2 The software shows the channels as numbered 0 7 Each channel can be either digital or analogue Digital channel numbers start from 0 and go up Analogue channel numbers start from 7 and go down 3 To change a digital channel to an analogue channel click the high est numbered digital channel and change its settings 4 To change an analogue channel to a digital channel click the lowest numbered analogue channel and change its settings s Logger Deteets Oxe Correcsat Feb 3 s 5 35 as 5 5 a tang ido Figure 3 2 ML840 Viewer Choosing how to use your Channels 3 5 2 Configuring a Digital Input Counter Channel 1 From the Logger Details box choose the Input Output tab Specifying Channels to be Analogue or Digital 3 5 Configuring the Microlink 840 2 Click a digital channel number from 0 upwards The Configure Channels box appears Configure Channel 7 DER Mode Analog Input f Tital OOK 25 Minimum Low T
21. he Alarm Edit box appears amp Logger Details ah i i Close Connection Help Logger Settings Input Output Readings Errors Alarms j Alarm Settings Enable Delay Message Output State a Enable Direct Source Greater Level S Aarm Ean ee a V Alarm Enable V Hardware Output I Message Hardware Output Control Alarmed State 0 OFF jo fo fo fo Enable Delay Enable Direct 7 Alarmed State 1 ON Destination IP Address a co c Iv clam Reset Subnet Mask po f p p Dupi Chanina Gateway IP Adddress 5 Alarm Delay Secs fo Jo fo fo Name Server IP Address Apply Cancel Figure 3 5 Specifying what happens on alarm Tick the Alarm Enable box 4 Choose how you will be alerted to the alarm by switching a digital output sending a message to a computer or both 5 When switching a digital output choose to switch it on or off when an alarm occurs Select Alarmed state 0 or 1 When 0 or off a high voltage is sent to the inputs When 1 or on a low voltage is sent to the inputs 6 You can choose to reset the alarm once the alarm condition ceases or to make it stay on 7 You can insert a delay between an alarm threshold being crossed and an alarm sounding useful in reducing the instances of false alarms For example if you were monitoring the temperature of a hospital freezer it may temporarily cross an alarm threshold when somebody opened it only to recross it moments later when they
22. ifferent IP addresses you will need to create multiple sites By default the system has one site called ML840 This assumes one Microlink 840 is connected at IP address 192 168 1 61 and port 47471 See the next section for details of creating other sites 1 From the opening ML840 Viewer screen choose the Connect to a Windmill Site menu then select To an existing site 2 Click the Connect button The Logger Details box appears for you to configure channels alarm and so on 3 2 3 Creating a Site By default the system has one site called ML840 but you can create others Establishing Communications with the 840 3 2 Configuring the Microlink 840 1 In ML840 Viewer choose Site Manager This holds the information about each place where data is collected For example the name of the site the communications link the number and names of the data col lection locations within the site and any special processing of data from each location Socom na Save Site Changes IIMSfile Close i Site Details Input Channels f Calculated Channels f Scheduled Scaling Site Name Add A New mi840 x Site File Prefix eLog Remove This Installation Date 25 10 2011 Be All data in the loggers before this date is ignored IT Site is offline and will not be accessed Connections to Logger Units Site Connection COM port number or IP addr xxx wxx xxx xR port Modem Telephone Number 192 168 1 61 47471
23. ime 1 to 255 mSec a 25 Minimum High Time 1 to 255 mSec Total Counter Total and Frequency Counter N Count on Rising Edge Period Counter F Count on Falling Edge Pulse Width Counter F Restore Count at Power Up C Elapsed Time Counter Apply Cancel Figure 3 3 Configuring a Digital Input Channel 3 Choose from 5 counter types and set the appropriate options detailed below Total Accumulating Counts e Choose whether to start from 0 at power up or restore the last count a power up e Choose whether to count on the change from low to high or from high to low e Specify a minimum on and off time to avoid counts from contact bounce Frequency Measurement Frequency measurement counts the number of pulses within a time period Hertz is the number of pulses within one second Specify a Gate Time the time over which pulses are counted so that frequency can be measured The gate time should be long enough to count sufficient pulses to give a good resolution of the frequency The longer the gate time though the less often the frequency can be updated For example if the pulse rate is 100 Hz then a gate of 0 1 seconds will count 10 pulses giving a resolution of only 10 while a gate time of 1 second will count 100 pulses Specifying Channels to be Analogue or Digital 3 6 Configuring the Microlink 840 The firmware in the 840 can also record e The maximum frequency in the recorded epoch e The minimum frequency
24. l read 1 We recommend a 1 kOhm resistor but anything similar will work 2 5 2 Analogue Inputs Changing the input Range The Microlink 840 accepts analogue inputs in the range 0 3 3 V You can change this by adding resistors You can divide down Analogue Inputs to the 3V3 input range of the 840 by adding an Sx resistor and a Bx resistor in the DOWN position The ML840 Setup program has a facility for calculating the values of the two resistors The two resistors in total should present a load which your input signal is capable of driving For example for 0 10V input signals you can try Sx 20 kOhm Bx to down 9 76 kOhm The signal is divided by 20 9 76 9 76 3 2 5 3 Current Loop Inputs You can convert a 4 20 mA current signal to a voltage by adding a resistor in the Bx DOWN position A value of 150 Ohms will produce a 3 Volt signal at 20 mA 2 5 4 Negative Input Voltages If your input signals go negative by more than a few volts then the output drivers will start to protect themselves and unwanted currents will flow which will affect analogue readings on all channels The driver chip IC3 is fitted in a socket so if you are not using outputs you can simply remove it If you have some outputs then you can remove it from its socket and bend out wards those pins which are inputs only Pin 18 is associated with Input 7 Pin 17 Input 6 etc to Pin 11 Input 0 Microlink 840 Inputs Adapting for Special Purposes 2 3 Instal
25. ling the Microlink 840 2 6 Microlink 840 Digital Outputs 12Vin 12 Vin 1KO WV Output pin Figure 2 3 Microlink 840 LED Drive Output 12 Vin A 12 V relay O Output pin o Figure 2 2 Microlink 840 Relay Drive Output Microlink 840 Digital Outputs 2 4 Configuring the Microlink 840 3 Configuring the Microlink 840 Use the ML840 Viewer program to configure the Microlink 840 Amongst other things this lets you e Set up communications between the computer and the Microlink Section 3 2 e Choose whether each channel is a digital input counter digital output or analogue output Section 3 5 e Choose the type of counter totalling frequency period pulse width elapsed time Section 3 5 2 e Set alarms Section 3 7 e Set which data is to be stored Section 3 8 e Change input channel names and units Section 3 9 e Perform calculations on the data Section 3 10 e Set where data is to be stored and the format of the logged data Sections 3 12 and 3 13 e Choose how often to collect data from the Microlink Section 3 15 3 1 Running the ML840 Viewer Software 1 Make sure your Microlink 840 units are connected and switched on 2 From the Windows Start menu choose the Windmill program group and select ML840 Viewer 3 2 Establishing Communications with the 840 The first time you use the ML840 Viewer you should connect directly to th
26. nd exported to a MySQL database You use WM Collect to automatically collect stored data from the Microlink at regular intervals You can either run it continually or if you just want to collect data daily weekly or monthly trun it as a Windows schedule You can also log and display data in real time using the Windmill suite of software To do this make sure that you select IMS file from the Site Manager window Section 3 9 Data will be saved in text files ale Configuring the Microlink 840 3 15 1 Scheduling Data Collection with WM Collect Use the WM Collect program to automatically collect data from the Microlink 840s at regular intervals For example you could collect data ev ery 5 minutes or every hour For counts you can choose to reset the counter when you collect data 1 In the opening ML840 Viewer screen choose Program Setup 2 Choose the Schedules tab and click Add New Event 3 Choose how often to upload the data and whether to reset counts when you do so WM Collect must be running continuously to in order to collect the data Make sure that WM Collect doesn t automatically shut itself down 4 Choose the Options tab 5 Clear the Apply box 3 15 2 Collecting Data Daily Weekly or Monthly Use Windows Task Manager or Scheduled Tasks depending on your ver sion of Windows to schedule automatic data collection daily weekly or monthly For example in Windows 7 you will find Scheduled Tasks in Star
27. neral ma Schedules if 5 I TOPAP comms _ Timeout secs eMail Mail report to Copy mail to Mail from SMTP server Password Mail changed settings files Save Changes Cancel Figure 3 12 Emailing reports Mail report to E mail address of to where you want the report sent Copy mail to E mail address of to where you want a copy sent Mail from E mail address from which the report will be sent SMTP server The outgoing mail server from which the e mail will be sent Password Your e mail account s password E mailing Data and Reports 3 22 Fault Finding 4 Fault Finding 4 1 4 2 4 3 No Route to Host Error This error occurs on Ethernet systems either because there is no physical connection between a Logging unit and the PC or because there is no network enabled on your PC Check e the cabling e that the Microlink 840 is powered up e that the local area connection settings on your PC are correct Can the Software Contact the Logger When the software talks to a Logger module the module s busy light comes on It remains on until the software talks to another Logger The busy light is on the back panel of a boxed Logger and on the Logger module s front panel in a rack based system If you only have one Logger then the light will remain permanently on The busy light is useful for diagnosing problems If you remove the power supply from the unit and then reconnect it
28. output 2 4 5 3 8 digital status 3 8 3 11 Direct to an Ethernet Logger 3 2 e mailing data and reports 3 21 22 engineering units 3 13 Microlink 840 User Manual epoch 3 4 3 11 3 17 errors 3 17 Ethernet 2 1 file format 3 16 MySQL 3 19 text 1 1 folder 2 1 format of data files 3 16 frequency counter 3 6 3 11 General tab 3 16 17 hardware channels 3 4 7 IMS file 3 21 inactive channel 3 15 Input Channels tab 3 12 3 21 input range 2 3 Input Output tab 3 5 IP address 3 2 lights busy 2 1 power 2 1 location of data files 3 16 Logger Details 3 5 3 8 Logger Settings tab 3 4 logging interval see epoch maximum 3 12 minimum 3 12 MySQL database 3 19 naming channels 3 12 13 negative input voltages 2 3 Options tab 3 18 19 outputs 2 4 period counter 3 7 3 11 power light 2 1 process 3 8 Program Setup 3 16 Program Setup menu 3 17 19 3 21 Readings 3 8 rows in the table 3 17 sample period see epoch Schedules tab 3 18 scheduling data collection 3 18 screw terminal connections 2 2 Site Details tab 3 15 Site Manager menu 3 3 3 12 3 14 15 3 21 status 3 8 3 11 time to start logging 3 17 total counter 3 6 trouble shooting 4 1 2 units 3 13 Wi Fi 2 1 WM Collect software 3 17 xml files 3 17 Microlink 840 User Manual Index ii
29. re button 3 9 Configuring Input Channels Naming Enabling Scaling and Setting Units In Section 3 5 we discussed choosing whether a hardware channel was an analogue or digital input or output For input channels you can also choose aname for the channel whether or not the channel is enabled any scaling to be applied to the readings from that channel and the units of the channel volts Hz counts etc These details are used by the other Windmill programs such as WM Collect and SetupIML 1 Choose the Site Manager menu and select the Input Channels tab Configuring Input Channels Naming Enabling Scaling and Setting Units 3 12 Configuring the Microlink 840 Input Channels mi840 v Logger number 0 X Read Channels from Hardware To update the list of channels enabled on this ML840 logger click the Read Channels from Hardware button Logger Channels Offset 00 Chan1_Count t 0 0 counts 01 Chani_Freq H 0 0 Hz 02 Chant _Fmin A 0 0 Hz 03 Chani_Fmax A 0 0 Hz 04 DigStatus A 0 0 bit_pattern 05 Chan5 06 Chan5_Avg 07 Chan5_Min 08 Chan5_Max 09 Chan6 10 Chan6_Avg 11 Chan6_Min Click on a channel code to disable a channel click on a parameter to change it Save Changes Figure 3 8 Configuring input channels If you have changed which data is stored Section 3 8 click the Read Channels from Hardware button To re name a channel click its name and type in a new one To disable or en
30. sed when this channel goes into an alarm state or whether a combination of channels need to be in alarm Select either Direct Alarm or Combination Alarm 4 Choose the source of the alarm Only options available with your chosen channel are shown 5 Set the level which when crossed causes an alarm condition For an analogue input the value you enter here will change to the nearest ac tual value that the Microlink s analogue to digital converter will produce 6 Choose whether an alarm occurs when the channel is above gt or below lt this level Setting What Happens When an Alarm Occurs 3 10 Configuring the Microlink 840 3 8 Setting which data you want to store in the 840 Logger You can choose how much data is stored in by the 840 Logger The more parameters you save the more space may be taken up If say you were stor ing all possible data and logging every hour you would have around a month s data stored Remember that you also regularly read the 840 using WM Collect software and save the data to the computer s hard drive 1 Connect to a Windmill Site and choose the Data Storage tab from the Logger Details box Close Connection Help Logger Settings Input Output Readings Data Storage ig Inputs Variables stored for each input channel Digital Channels Count LSW Count MSW Process 0 Parameters V Record status of digital inputs Send to Unit M M x x x x x x x x x x x
31. t gt All Programs gt Accessories gt System Tools gt Task Scheduler Look for the WM Collect program and click the Next button Choose whether to collect data daily weekly or monthly Select the time for collec tion Set WM Collect to run once then close The command to initiate a download is the path of wmcollect exe For example C Program Files Windmill Software wmcollect exe When running WM Collect as a scheduled task you should tell it for how long to run before shutting down 1 Choose the Program Setup menu and select the Options tab 2 Enter a running time and tick the Apply box 3 15 3 Extra Saved Data You can save real time counts and place completed daily files to a Postbox directory 1 In the opening ML840 Viewer screen choose Program Setup Collecting Data 3 18 2 amp Program Options _ Configuring the Microlink 840 Choose the Options tab Save Setup Changes Close i General Schedules Communications Options mySQL VT collect Application Only Extra saved data Program Operation Shutdown after 1 minutes Apply WM Completed day files to Postbox I Save real time counts D Upload new settings in Postbox V Sensor Type Data File Type ELOG X X Save Cees Cancel Figure 3 11 Setting some data collection options Tick Save real time counts if you want the WM Collect to keep an updating file of real time
32. ternal knowledge of days or months The data and time that data is collected by the software is calculated within the PC from the Microlink seconds count As time in the Microlink logger is reset according to the PC time you should ensure that all computers that you might use to collect data are on the same time 3 4 Setting the Epoch Length The epoch length is the time in seconds over which data is logged and max imum minimum and average readings are calculated The default epoch is 3600 which means that the count will be logged every hour 1 Connect to a Windmill Site and choose the Logger Settings tab 2 Enter a minimum value we recommend that the value for the Epoch length should be 60 seconds or longer 3 Enter a maximum value the longest Epoch that can be used is 32000 seconds 9 hours As the Epochs progress they are numbered The count will be stored at the end of the current epoch You can t edit this setting You can have different epoch lengths for each channel When the maximum number of epochs is reached the earliest data will be overwritten Data should have been collected by WM Collect before this happens The maximum number depends on how many channels of data you are collecting but for 8 hardware channels plus maximum minimum and average values it can store 933 epochs See Section 3 8 for details of setting which data is stored 3 5 Specifying Channels to be Analogue or Digital A Microlink 840 has
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