Refrigerant & Ammonia Leak Monitoring System SNMP
Contents
1. To refresh the status click on Refresh in the toolbar above the table window To view all zone information from the IR em Expand the MIB tree until zoneTable is highlighted Right click on zoneTable and select Table View a table showing all zone names readings and thresholds will be displayed To refresh the table click on Refresh in the toolbar above the table window 10 5 SNMP MIB structure The MIB contains all the information read from the unit via the RS485 Camero interface The table below details all the variables accessible via the MIB Variable Name Within zoneTable Description Notes zoneNumber Yes Fixed the units zone number zoneName Yes The zones name zoneGasConc Yes The zones concentration zoneleakThresh Yes The zones leak alarm threshold zoneLeakCycles Yes The zones leak alarm cycles zoneSpillThresh Yes The zones spill alarm threshold zoneSampTime Yes The zones sample time zoneFlowAlm Yes The global flow fault status Will be set to 1 for all zones if a flow fault is present on any zone zonePresAlm Yes The global pressure fault status Will be set to 1 for all zones if a pressure fault is present on any zone zoneSpillAlm Yes The global spill alarm status Will be set to 1 for all zones if a spill alarm is present on any zone zoneLeakAlm Yes The zones leak alarm status isResponding No Indicates if the IR em unit is2. el vides ee resor Lp DOME 01 t 0 100 1 100 20 2 e2 o 120 2 Eu ral d 130 x6 2 140 4 o EJ 170 700 5 2d 180 Li w0 al a k 161 190 0 ta 20 200 10 1000 0 11 10 1 10 1 111 12 11 00 zo 1200 m 13 12 0 1 t4 13 0 M0 1400 D i51 1 1500 16 15 1 a0 1606 al ae lon m ote Accent Dabs ial heo nantes z I gt ina arg dod rtemet prtvabe arterias cpod products canvarogacs sona Table 32321 rM m m a Fig 4 iReasoning MIB browser You must also obtain a copy of the current MIB file for the unit available from CPC UK technical support The check the operation of the unit 1 Connect the unit to the Ethernet network or directly to a PC or Laptop using a cross over cable 2 Ensure your IP address settings are within range of the unit 3 From your PC or Laptop carry out a ping test to the unit i e from the command prompt type ping xxx xxx xxx xxx replacing xxx xxx xxx xxx with the units IP address 4 Start the MIB browser software 10 11 12 Load the units MIB file into the browser software Click file Click Load Mib Select the location of the MIB file Enter the IP address of the unit into the address bar at the top of the screen Expand the MIB tree until isResponding is highlighted Right click on isResponding and select Get the window on the right now report the status of this variable 1 IR em responding via RS485 0 IR em not responding via RS485
3. responding via RS485 isAnyAlarm No Indicates if any alarms are present Will be set to 1 if any alarm is present on any zone or within the unit numZones No Indicates the number of zones 8or16 Table 1 MIB details Individual leak spill pressure and flow faults alarms are not available via the RS485 Camero interface Therefore the leak alarm is calculated per zone by the unit using the following method Add up all the sample times for all the zones to get a total sample time For each zone Multiply the total sample time by the zone s leak cycles minus 1 to get an alarm confirmation period If the mode is sequential AND zone gas concentration has been gt zone leak threshold for alarm confirmation period AND Zone sample time is not set to 0 AND Leak cycles not set to 0 Set the zone leak alarm point on SNMP Else Clear the zone leak alarm point on SNMP I Notes 1 The total sample time needs to be continously calculated to take into account users changing the sample time values and enabling and disabling zones see below 2 If the mode obtained from GetStatus is not 3 sequential then all SNMP leak alarms must be cleared and their confirmation timers reset 3 A zone can be disabled by setting the sample time to zero This is benign w r t computation of alarm confirmation period 4 A zone can be set up to be still sampled but generate no leak alarm by setting its leak cycles to
4. this is the intended application for the unit 1 1 Typical schematic To Server IR em Refrigerant Leak Detector TCP IP Power Gateway a Lo RS485 Fig 1 Schematic 2 Hardware details The unit is supplied as a standard din rail mounting enclosure Connections to the unit are via BL type 2 54mm terminals and a standard Cat5 UTP connection LAdNI H3MOd MANI 43MOd Li o v E LINK LED POWER LED LED 90mm CPC IREM SNMP Camero Gateway Not Used 60mm DDN 223 Bem 2 70 mm Fig 2 Layout 2 1 Power Connection Power must be connected to the unit via the power input connections The unit will operate from a wide range AC or DC supply DC 9VDC to 24VDC not dependant on polarity AC 24VAC Typical power consumption is 50mA 12VDC 2 2 RS485 Connection The RS485 connection is used to connect the unit to the IR em Screened 2 core beldan type cable should be used for connection to the IR em Note The screen must be connected 2 3 Ethernet Connection The Ethernet connection is used to connect the unit to an Ethernet network A standard UTP type CAT5 Patch cable maybe used For direct connection to a PC or Laptop use a CAT5 cross over patch cable 2 4 Indicator LED s The indicator LED s represent the status of the unit Power LED Will permanently illuminate when the unit is powered up CPU LED Will flash at a regular rate if t
5. 0 In this case the SNMP alarm must not be generated but the sample time must still be used in the total So again this is benign w r t computation of alarm confirmation period 11
6. CPC LL I CPC IREM SNMP Camero Gateway Unit 7 8 Heathrow Causeway Estate Ariel Way Hounslow Middlesex TW4 6JW 44 0 208 6302270 Refrigerant amp Ammonia Leak Monitoring System SNMP to Camero gateway User Manual Version 1 01 All rights reserved The information contained in this manual has been carefully checked and is believed to be accurate However CPC UK Ltd assumes no responsibility for any inaccuracies that may be contained herein In no event will CPC UK Ltd be liable for any direct indirect special incidental or consequential damages resulting from any defect or omission in this manual even if advised of the possibility of such damages In the interest of continued product development CPC UK Ltd reserves the right to make improvements to this manual and the products described herein at any time without notice or obligation Copyright Copyright by CPC UK Ltd No part of this manual may be reproduced or transmitted in any Form without express written authorization from CPC UK Ltd Trademarks All trademarks are acknowledged and are the property of their respective holders Contents Ls IAtrOMUCUION ERREUR 4 1 1 Typical schematic iie corea idad RR Rana ER Ave au XR ERES eee 4 Zu Hardware details ien nip n 5 2 1 Power Connection sees isi ii dee meer bak tae or erre te FEE EIER Arne Tre anal ER dar pF va dede FEE ME RABIA Gu 5 2 2 RS485CONMECUO ieu La
7. c ene id a 5 2 3 Ethernet Connection iiie rire diia 6 2 4 Indicator LED S 5 reoc ctio seater teseu Inc ocean tot Vue D Tee ERR E eed ke eoe Te Dc cad cmd po oe S x eere duet 6 2 5 DIP SWITCHES c2 E E Le ree ha De deae kk aco heh eo A a Rode u ee aee eo RR aD E Ra IUUD 6 2 6 MOUNTING THE nib 2 5 1222 einen 6 3 Gonfig ring thie Unhit souci O 7 3 1 Accessing the set p page erred ge ith eR n ina De ER RH RR a ERA RE HE Ea ca 8 3 2 RS485 Camero setup 5 2 seh s cae a seeds 8 4 Checking unit operation 2 2 1e ere tree neenon a nna dana arua iia a 9 5 SNMP MIB Str ctUte nana easanets cots cobaieesecesvedaccetstaceanseUecsatcenecndenseeaehceetaneduasenaeceece 11 1 Introduction This manual outlines the features and specifications for the IREM SNMP Camero Gateway The function of the unit is to convert the RS485 based Camero communication protocol into SNMP which is a Ethernet TCP IP based protocol The Camero protocol is a propriety RS485 protocol supported by the IR em refrigerant leak dectection unit and allows access to variables within the IR em such as gas PPM concentrations alarms and operating parameters The SNMP Simple Network Message Protocol is a TCP IP based protocol commonly used by servers to communicate with remote equipment such as routers printers and other servers The SNMP protocol is also used by BMS systems to communicate with remote controllers and monitoring devices
8. ddress bar in your browser 5 You will now be prompted to enter the setup username always admin and password default password 6 The setup page will now be displayed within your web browser Note If you are uncertain of the IP address or password switch dip switch 4 down on and the default IP address and password will apply 3 2 RS485 Camero setup There are no settings within the unit for the RS485 interface However you must ensure that the IR em unit has been setup to use the Camero protocol and has been setup as address 0 4 Checking unit operation To check the unit is communicating to the IR em review the comms status within the HTML setup page see sections 3 Configuring the unit and 3 1 Accessing the setup page The check the full operation of the unit you must use the appropriate SNMP MIB message information block browser software This software will enable the user to view the contents of the MIB structure and therefore verify the unit is operating correctly This manual explains how to check the operation of the unit using the iReasoning MIB Browser Personal edition software package which can be downloaded for free from http www ireasoning com downloadmibbrowserfree php Be EX QOpeskees To pones Hep address 19 166 230 260 Avene 0x 1941419697204 v peon Get Nest hd ee E Recut Table 192 1 68 239 256 zene Table wt Or eo pres CEOs FD 2 Refresh B8 tpat TPI antante Ie yw DNA melak Teh
9. he CPU is running correctly Activity LED Will flash irregularly according to Ethernet activity Link LED Will permanently illuminate when properly connected the Ethernet network 2 5 Dip switches There are four dip switches on the unit only one of these is used Switch No 4 Down ON default IP address settings and admin password will be used Up OFF user set IP address settings and admin password will be used 2 6 Mounting the unit The unit is designed to be mounted onto standard 1 5 top hat type din rail within an enclosure or control panel 3 Configuring the unit Various settings primarily TCP IP settings must be configured by the user These are accessed via the HTML setup page Go e mem Mex Pi Ele Eit Yew Fpode oor feb oO Bsn gt Dee rogar rhe cc UO a Enable DHCP J IP Address 192 168 230 25 Gateway Subnet Mask Primary DNS Secondary DNS 19216801 Host Name FEMSNMPG Password ro Board 01 01 s w 1 0 mac 00 50 C2 8D 90 03 comms not connected refresh Sore rear 107 M M E e a MM s Fig 3 HTML setup page Enable DHCP Tf ticked the unit will use dynamic IP addressing If ticked you must also configure the Primary DNS Secondary DNS and Host name settings Default disabled not ticked IP Address The IP address of the unit this setting only applies if DHCP is disabled Default 192 168 0 140 Gateway For future use this
10. setting maybe left as default Subnet Mask The network subnet mask this setting only applies if DHCP is disabled Default 255 255 255 0 Primary DNS The address of the primary DNS Domain Name Server this setting only applies if DHCP is enabled Default 192 168 0 1 Seconday DNS The address of the secondary DNS this setting only applies if DHCP is enabled If only a primary DNS is present set the same as primary DNS Default 192 168 0 1 Host Name The host name of the unit This is the name that will identify the unit on the DNS server This setting only applies if DCHP is enabled Default IREMSNMPG Password The admin password as used to access the setup page Default password The string at the bottom of the setup page indicates the basic status of the unit board The board number for future use S W The software revision of the unit max The unique mac address of the unit comms The RS485 status not connected IR em not responding via RS485 connected IR em online and responding via RS485 Note To refresh this string you must click on the refresh link at the end of the string 3 1 Accessing the setup page To access the HTML setup page 1 Connect the unit to the Ethernet network or directly to a PC or Laptop using a cross over cable 2 Ensure your IP address settings are within range of the unit 3 Start the web browser application 4 Enter the IP address of the unit into the a
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