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967EN/968EN User`s Manual

1. A HOST PC TO MORE THAN ONE MODULE Al Switch or equi Note This MDI to MDI X connection does not require the use of a crossover cable A The ethernet port of this switch are automatic MDVMDI X TEE x5 and donot require CAT 5 UTP CABLE 900EN S005 passat FOSTERS _ UPTO100METERS crossover cables S S GU al f Straight Through or Crossover Cable f Acromag 967 8EN I Ethernet Modes Acromag Acromeg offers a straight through patch cable Model 5035 356 or a oe Hipa pat ofthis crossover cable Model 5035 360 for use with Series 9xEN modules LNK AG dui mayer ee crossover andis wired CAT 5 UTP CABLE oS MDI X UPTO100METERS IJ eneme Acromag SS we E DEE Straight Through or Crossover Cable T a Order Acromag Cable Model 5085 355 s N CAT 5 UTP CABLE f UP TO 100 METERS EHERNE EN Straight Through or Crossover Cable oo g CAT 5 UTP CABLE L e UP TO 100 METERS menne Acromag ae Straight Through or Crossover Cable rae a DEFO CAT 5 UTP CABLE Es UP TO 100 METERS ETERNE Straight Through or Crossover Cable g Power Voltage 18 VDC Current Current T D Max 82 mA 98 4 mA 24 VDC 63 mA 74 4 MA 36 VDC 44 8 mA 53 8 mA
2. v Connect 18 36V DC to the power terminals labeled DC amp DC Observe proper polarity For supply connections use No 14 AWG wires rated for at least 75 C CAUTION Do not exceed 36VDC peak 18 36VDC TBS S aS Toor S 2 DC S 71 8 GND T S 1 Ss eo L S 9 EARTH S 18 GROUND Eel re cote CAUTION Risk of Electric Shock More than one disconnect switch may be required to de energize equipment before servicing IMPORTANT External Fuse If unit is powered from a supply capable of delivering more than 1A to the unit it is recommended that this current be Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input T limited via a high surge tolerant fuse rated for a maximum current of 1A or less for example see Bel Fuse MJS1 v Connect Earth Ground as shown in the connection drawings on previous CONNECTIONS page Additionally connect the GND terminal TB3 3 to earth ground The ground connections noted are recommended for best results If sensors are already grounded use caution and avoid making additional ground connections which could create ground loops The module housing is plastic and does not require its own earth ground Transient energy is shunted to th
3. CO N or BR OO PhP RJ 45 CONNECTOR The Ethernet port of this unit is wired MDI X by default but includes automatic crossover the Ethernet port of your PC is typically wired MDI Thus you can use either a straight through or crossover cable to connect this device directly to a PC Ethernet switch or another unit Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual CROSSOVER CABLE FOR MDI TO MDI OR MDI X TO MDI X ed ich RJ45 Clip Side Down 5 RJ45 Clip Side Down E 1 FOR DIRECT PC TO ETHERNET MODULE PINS 1103 CONNECTIONS 2TO6 3T01 6102 From the factory the 967 8EN unit has a default IP address setting of 128 1 1 100 and a class C subnet mask of 255 255 255 0 This defines a restricted default address domain that your current network cannot address directly unless you first create an exclusive subnet targeted to the 967 8EN This typically involves a process by which you either change the address of your current network interface card which will temporarily disable it from your own network install a second network interface card or obtain an unused PC or laptop with a NIC installed In any case you must set the address of your network interface card to an address within the default address domain o
4. Getting Out of Trouble procedure A D Input Calibration The ideal A D input voltages raw counts and normalized counts are indicated below before re scaling for the range endpoints and midpoint based on the 16 bit 10V base input range of the A D Zero amp Full Scale A D Counts for A D ranges amp 0 05 accuracy Full Scale Range oV OmA Full Scale 10V 968EN 10 000V 10mV OV 10MmV 10 000V 10mV Raw A D Count 32767 66 0 66LSB 32768 66 Normalized Count 20000 41 0 41 20000 41 5V 968EN 5 000V 5mV 0V 5mV 5 000V 5mV Raw A D Count 163844 33 0 33LSB 16384 33 Normalized Count 20000 36 0 36 20000 36 20mA 967EN 20MA 20UA OMA 20UA 20mA 20UA Raw A D Count 13107 14 0 14LSB 13107414 Normalized Count 20000 32 0 32 20000 32 The 967EN utilizes the 10V native range of the A D to process 20mA A precision 200Q input shunt resistor 0 05 10ppm C is used to convert the input current to the A D voltage Thus all 967EN input current ranges are actually sub ranges of the 16 bit 10V range A full scale current of 20mA will present a full scale voltage of 4 0V to the A D yielding an effective internal resolution of one in 26214 parts for 20mA 13107parts or one in 13107 parts for 0 20mA For simplification the raw A D count for selected input ranges is normalized to a count of 20000 If you perform manual calibration via the controls of this page or you use th
5. Floating Point Submit Button Click here to execute your floating point control selections Reset Unit Control System Reset Not Per Channel Reset Button Click this button to remotely perform a system reset of the unit Note that resetting a unit will also restart any totalizer channels either to a preload value or the last value After completing the username password assignments plus the network and input configuration parameters click the Test Page button to access the web server Test Page and operate your unit Here you are able to read the input values scaled values scaled units and totalized values of the eight differential input channels of this unit You can even set an input polling rate for the active Test Page at the bottom Test Page Windows Internet Explorer 0 ae Go v http 128 1 1 100 protect test stm 42 6 Pjr File gdt view Favorites Tools Help Google G yocp OD Er i Bookmarkse Bit blocked P Check 4 Autolink v eb Send tow O Settings We R PSrest page M D he eae Toss 968EN 4008 Test Page i Port Channel o 1 2 3 4 5 6 Input Value Volts o omoo 0 0 onoo 0 0000 0 0000 0 0000 0 000 Scaled Input Value 0 ooo 0 0000 0 0000 0 ooo 0 oo 0 000 0 0000 Scaled Units mal Totalized Value Polling Rate lt Volts units Gal 0z NOTE Excitation MUST be applied for LO t
6. Input Calibration By default the unit automatically calibrates zero and Current 967EN Model span every input cycle using precise on board calibration reference or signals sufficient for most applications Optionally inputs may be Voltage 968EN Model calibrated manually by driving the input channel externally It is also possible to manually calibrate an entire input port based on the calibration of one channel from that port a manual calibration time saver Calibration is automatic manual per channel or port and a unit can mix manual and automatic calibration among channels Input Accuracy 967EN 4008 0 05 Typ better than 0 1 of span 967EN 4C08 Better than 0 1 of span 968EN 4008 Better than 0 05 of span 968EN 4C08 Better than 0 1 of span The above specs use auto calibration for nominal input ranges and reference test conditions This includes the effects of repeatability terminal point conformity and linearization but does not include sensor error Note relative accuracy can be improved with manual calibration Input Measurement Temperature Drift Better than 25ppm C 0 0025 C Input Analog to Digital Converter A D A 16 bit successive approximation converter Linear Technology LTC18561G Input Conversion Rate Varies according to the number of scan groups enabled and whether totalization is being performed Input Filter Normal mode filtering fixed per input type Input Filter Bandwidth
7. You must also Enable Floating Point Support to accomplish rescaling If you are using only a portion of this range you may have to interpolate your scaled full scale Units 5 characters Enter the units of measure for your rescaled input zero and full scale and this is an arbitrary definition used only for reference NOTE 967EN By default all 967EN current ranges are sub ranges of a larger 16 bit 10V A D input range This bipolar input range allows the input current to be measured in either direction between the terminals The 967EN employs a 2000 shunt resistor to convert the current signal to 4 0V full scale 0 020A x200Q This approximates 14 6 bit of resolution with an A D resolution of 13107 parts for 20mA 968EN Voltage Input Models Input Range Select a 16 bit A D input range of 10V or a 15 bit sub range of 5V Input Zero Fixed per Range Default is the same as input range zero 5V or 10V and this cannot be changed The voltage indicated corresponds to 0 of signal and a normalized count of 20000 Scaled Zero Default is the same as input zero 5V or 10V but you can rescale this value as required for your application Field is limited to a 32 bit number with up to 12 characters and a maximum of 4 decimal places For each channel 0 7 enter your rescaled value in engineering units that is to correspond to 0 of input signal You must also Enable Floating Point Support to accomplish rescaling If you are using onl
8. category II rating Electromagnetic Interference Immunity EMI Inputs outputs have demonstrated resistance to inadvertent state changes with interference from switching solenoids commutator motors and drill motors Electromagnetic Compatibility EMC Immunity Per European Norm BS EN 61000 6 2 2005 Electrostatic Discharge ESD Immunity 4KV direct contact and 8KV air discharge to the enclosure port per IEC61000 4 2 Radiated Field Immunity RFI 10V M 80 to 1000MHz AM 1 4 to 2GHz 3V M and 2 to 2 7GHz 1V M per IEC61000 4 3 Electrical Fast Transient Immunity EFT 2KV to power and 1KV to signal I O per IEC61000 4 4 Conducted RF Immunity CRFI 10V rms 150KHz to 80MHz per IEC61000 4 6 Surge Immunity 0 5KV per IEC61000 4 5 Emissions Per European Norm BS EN 61000 6 4 2007 Radiated Frequency Emissions 30 to 1000MHz per CISPR16 Class A WARNING This is a Class A product In a domestic environment this product may cause radio interference in which the user may be required to take adequate measures IMPORTANT Power input and output I O wiring must be in accordance with Class Division 2 wiring methods of Article 501 4 b of the National Electrical Code NFPA 70 for installations in the US or as specified in section 18 1J2 of the Canadian Electrical Code for installations within Canada and in accordance with the authority having jurisdiction This equipment is suitable for use in Class I Division 2 Groups A B C an
9. 0 1 90 seconds Specify 0 to turn cyclical i20 messaging OFF If Span is set to a non zero value a default time of 600 P i will be used 60 seconds to keep the connection open Times less than 5 i20 Configuration Page 0 5s will be less deterministic and are not recommended Map To IP Address This is the Static IP Address of a compatible target output device Any input may be mapped to an output or to separate outputs at two different IP addresses You should never map different channels to the same output Use 0 0 0 0 to turn this field back to its default inactive status Map To Holding Register This is the output holding register address of an output channel on a compatible i20 target Refer to the prior page for compatible models and their corresponding output channel register addresses Mapping Method This selection essentially tells the firmware how to map 0 at the input to the output In some cases the input signal range is bipolar and normalized to 20000 counts while the output channel is unipolar and normalized to a 0 20000 count For simplicity all BusWorks model I O ranges are normalized to these same values But you can use i20 to map unipolar input ranges to bipolar output ranges and visa versa Selecting Uni Uni or Bi Bi will cause OV OmA at the input to equal 0 of the output range Selecting Bi Uni will cause 0V OmA at the input to equal 50 of the output range Selecting Uni Bi will cause 0V OmA at the input
10. 0V full scale to the 10V input channel of a 16 bit A D 968EN input channels drive the 10V A D directly Inputs are wideband up to 200Hz and include transient voltage suppression Model 968EN voltage inputs are also fault tolerant to 25V Unit must be wired and configured for the intended input type and range see Connections section for details Inputs are bipolar differential and the signal can be input to either terminal and returned on the opposite terminal The following paragraphs summarize this model s input types ranges and applicable specifications Modbus TCP IP Analog Input 45 Configuration Parameters Not Programmable Via Modbus Registers Use the built in web interface screens to set these parameters which are generally required to setup communications SPECIFICATIONS Model Numbers 967EN 4008 967EN 4C08 968EN 4008 968EN 4C08 Analog Inputs Current 967EN Model or Voltage 968EN Model Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com 46 BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input SPECIFICATIONS DC Input Range 10V or 5V 968EN 20mA 0 20mA 4 20mA 967EN A nominal bipolar and differential field range of 10V is used on a per channel basis which corresponds to the full 16 bit A D Analog Inputs input range An Input sub range of 5V may be selected for the 968EN 15 bit Note that the 968EN 10V range may not be able to
11. 1 0 Reserved Wink Toggle amp Cal Access amp Restore Cal amp Rest Scaling amp System Reset Register Reserved Reserved Do Not Use Write 21845 5555H here to cause the unit to wink its green Run LED in order to ID the unit Write the same value a second time to stop winking Use the Unit Status Register wink mode flag to determine the wink state Write 24106 5E2AH to remove write protection from the calibration registers that follow All other values apply write protection to the calibration registers Write 44718 AEAEH to restore the default calibration coefficients Write 60138 EAEAH to restore the default scaling values Write 41429 A1D5H to this register to cause a system reset and reboot Reserved Do Not Use Reserved Reserved Do Not Use Reserved Reserved Do Not Use Calibration Value Registers 40025 40056 CHO 5V Cal HI 16 bit Signed Integer Data CHO 5V Cal LO 16 bit Signed Integer Data CHO 10V Cal HI 16 bit Signed Integer Data CHO 10V Cal LO 16 bit Signed Integer Data CH1 5V Cal HI 16 bit Signed Integer Data CH1 5V Cal LO 16 bit Signed Integer Data CH1 10V Cal HI 16 bit Signed Integer Data CH1 10V Cal LO 16 bit Signed Integer Data CH2 5V Cal HI 16 bit Signed Integer Data CH2 5V Cal LO 16 bit Signed Integer Data CHO02 10V Cal HI 16 bit Signed Int
12. For inputs a value of 1 means the input is ON Active low near OV while a value of 0 specifies the input is OFF or in its high state Normalized A 16 bit signed integer value is used to represent 20000 Data counts for bipolar input ranges and 0 20000 counts for Count This unipolar input ranges For example 1V OV and 1V are Model represented by integer values 20000 0 and 20000 for bipolar devices respectively Temperature A 16 bit signed integer value with resolution of 0 1 C Isb represents the range of a TC type measured in degrees C For example a JTC type has a range of 210 to 760C which read 2100 to 7600 counts within the data register respectively Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input 3 Q The following table outlines the register map for the 967 968EN I O processor The Modbus functions operate on these registers using the data types noted above except for the Reset Slave and Report Slave ID functions Register Map Model 967EN 4x08 Model 968EN 4x08 Not all programmable features of this device will include a corresponding Modbus configuration register Some functionality must be programmed via the built in web browser interface For example parameters related to network communications do not have a Modbus register and are programmed solely through the built in web interface Desc
13. If this unit were an i2o target device it has its outputs controlled by another units inputs then each i2o message sent to this device will require a socket and the Number of Sockets must be increased to allow for this A socket is a software mechanism that connects an application to a network protocol socket is a software object not a physical object For example a Modbus application program can send and receive TCP IP messages by opening a socket and reading and writing data to and from the socket On TCP IP and UDP networks a port is an endpoint to a logical connection a connection port and the way that a client program specifies a specific server program on a computer network For example a Modbus program will open TCP port 502 to be readable from other Modbus devices on the network which also use port 502 to establish a connection A port may have more than one socket active at a time and this server device will allow up to 5 sockets to operate simultaneously over its contact port 502 A Subnet Mask is used to subdivide the host portion of the IP address into two or more subnets The subnet mask will flag the bits of the IP address that belong to the network address and the remaining bits correspond to the host portion of the address The unique subnet to which an IP address refers to is recovered by performing a bitwise AND operation between the IP address and the mask itself with the result being the sub network address M
14. Input Polarity is Wrong Are your input terminals reversed Observe proper polarity for voltage inputs Current can be input to the input or input terminals if a non polarized range is selected Unit Fails Input Self Test Internal calibration reference has failed or has been miscalibrated Check the reference field of the Calibration Page and make sure a voltage between 4 9965 and 5 0035 5V 0 07 is indicated If not you may attempt to calibrate this yourself or return the unit to Acromag for calibration repair or replacement Current Inputs Have Greater Inaccuracy Auto calibration of current inputs fails to compensate for errors in the current shunt resistor Refer to Input Cal Page and perform a manual cal of the input if auto calibration results are not sufficient Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual Refer to Acromag Application Note 8500 734 for help in setting up network communication with your unit see CDROM shipped with unit or down load it from www acromag com This document gives details for changing your PC s TCP IP configuration in order to communicate with hardware similar to your unit see TCP IP Properties of Network Configuration in Windows If you have carefully followed this procedure and you still cannot browse your unit you may have the web browser of your laptop or PC setup
15. WARNING IEC Safety Standards may require that this device be mounted within an approved metal enclosure or sub system particularly for applications with exposure to voltages greater than or equal to 75VDC or 50VAC CONTROLS amp INDICATORS Green Run LED is ON if power is on and will blink in wink ID mode Yellow ST LED blinks ON OFF slowly if module is in default communication mode Green LINK LED is ON if auto negotiation has successfully established a connection Yellow ACT LED signals PHY network Activity busy ISOLATION BARRIERS Dashed Lines denote isolation barriers The I O circuit network and power circuits are isolated from each other for safety and noise immunity Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com 4 BusWorks 967 8EN User s Manual CONNECTIONS DIN Rail Mounting amp Removal Network For 100Base TX systems at a minimum use data grade Unshielded Twisted Pair UTP wiring that has a 1000 characteristic impedance and meets the EIA TIA Category 5 wire specifications It is recommended that you use a CAT 5 cable to connect this device to your PC For 10Base T systems you may use Category 3 Category 4 or Category 5 5E UTP STP cable In either case you are limited to 100 meters between any two devices Modbus TCP IP Analog Input When attaching the module to the i T type DIN rail angle the top
16. adjustment to view the entire page as shown You can elect to send this units input data to the target unit cyclically at the update rate specified or upon a of input span change since the last update a g sep OB Do O meis Ard Poed Hara A Seni ne ena Eres E Note The i20 mapping 120 Configuration Page feature may only be configured 7 z via the built in web browser hannel Number gt Span Change Update Time 100mS Map To IP Address Map To Holding Register Mapping Method gt Dass tanete page as there are no Modbus rhe ol registers for specifying these Uae te parameters 1 Bipolar to Bipolar Umpolar to Bipolar Bean While this unit supports Modbus TCP IP and UDP IP gt area i20 messages are only sent via ae Modbus TCP IP Doar Cape Bipolar to Bipolar Unipolar to Bipolar 2 PEE The i20 messaging will Bipolar to Unipolar anigi ar consume one TCP IP socket opt apa on the target device The i2o target device must have a Static IP address in order to process i20 messages This unit has 1 port of 8 input channels of current 967EN or voltage 968EN For simplicity the bipolar analog I O channels of BusWorks modules are all normalized to 20000 counts representing 100 Likewise BusWorks unipolar channels are normalized to 0 20000 representing 0 100 Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com hittp www acromag com 1 4 BusWorks 967 8EN User s Manual WEB BROWSER
17. but will revert to the static IP WEB BROWSER address specified if your DHCP server cannot be found DHCP refers to Dynamic Host Configuration Protocol and its routine for Network Configuration assigning dynamic IP addresses to devices on a network With dynamic addressing a device can have a different IP address every time it connects to the network and in some systems the IP address can even change while it is still connected Click the Submit button to complete any changes made on this page Click the Wink On Off button to toggle the module in out of wink ID mode In this mode the module s green RUN LED will blink to confirm identification The unit includes a default address push button to cause the module to assume a fixed default static IP address 128 1 1 100 This button is at the front of the module and is used to toggle the module into or out of Default Mode If you use the push button at the front of the module to place the module in default mode then Default Communications Mode will be indicated at the bottom of this screen This unit includes a special remote messaging functionality called i20 for i20 Configuration Page input to output communication This allows an i2o source like this unit to send input data to an output channel on any compatible BusWorks model over the network The i20 Mapping page is shown below and used to specify the static IP addresses of the targeted remote unit s Use the scroll
18. capacitor Data Rate Auto sensed 10Mbps or 100Mbps Duplex Auto negotiated Full or Half Duplex Compliance IEEE 802 3 802 3u 802 3x Ethernet Interface Modbus TCP IP Protocol Support Up to 5 sockets may be selected Web pages for configuration and control are built in and may be accessed over Ethernet via a standard web browser Most module functionality is configured via memory map registers or web pages but some functionality may only be configured via web pages IP Address The module IP address can be preset by the user static and Refer to Acromag Application loaded from internal non volatile memory or it can be automatically Note 8500 734 for instructions acquired at startup via a network server using a DHCP Dynamic Host on how to change the IP Configuration Protocol The unit also includes a default mode toggle address of your PC network switch to cause the module to assume a known fixed static IP address interface card in order to talk of 128 1 1 100 for trouble shooting purposes to an Acromag module Communication Distance The distance between two devices on an Ethernet network is generally limited to 100 meters using recommended copper cable Distances may be extended using hubs switches or fiber optic transmission However the total round trip delay time must not exceed 512 bit times for collision detection to work properly Controls Push Button Controls amp Indicators Default Address Switch This mom
19. each other and their full scale measurements to within 15LSB Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com 24 BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input WEB BROWSER Calibration Page IMPORTANT If you select Yes to Use this channel s calibration for all channels in the port note that the channel must be calibrated first before making this selection Channel Selector Bullets Click to bullet the channel you wish to calibrate Calibration is done on a per channel basis Optionally you can pick one channel from the port and use that calibration to represent all 8 port channels Zero Calibration Point Field This field indicates the low calibration endpoint for the selected input range This is the input signal that you have to apply to accomplish zero calibration Your input source must be of an accuracy greater than 0 03 of span to achieve better results than auto calibration Full Scale Calibration Point Field This field indicates the high calibration endpoint for the selected input range and is the input signal to apply to accomplish full scale calibration Your input source must be of an accuracy greater than 0 03 of span to achieve better results than auto calibration Calibration Step Button You click this button in a sequence of three steps to accomplish input calibration via this web page Specific instructions at each step appear printed o
20. efficiency switching regulator isolated flyback converter provides isolated power to the unit Refer to the simplified schematic on the following page to help gain a better understanding of circuit operation SIMPLIFIED SCHEMATIC 1 CHANNEL EACH OF 4 PORTS INP MUX ae 5 000V cur a 433V 433V BV ANV ISOLATED ETHERNET 2 porcini cic icici i icin cece cecil gt Ethernet Port Includes ESD Protection CHO1 CHOS i a CHe1 A S CPU DSP Pi a COM H za ol x S 7 ee A 4 1 J i i i SYSTEM STATUS LED s 2 amp Honeoni ANALOG COMMON ISOLATED ETHERNET ae Q GND AV PSRaM 2Mx16 PGM s PORT 7 ea te eee N _ ISOLATED INPUT POWER Sav RAIL je3evoc P 3 3V NV Te 12V lt gt S34 Iso atep lo c O FRAM A 1 FLYBACK rs WwW BIPOLAR 61V 3 SWITCHER Q E CONV v 3 R 12V 5VRAIL STE ee oes v A 967 8EN SIMPLIFIED SCHAVATIC lt lt 5 0v ENCLOSURE IS COMMON 7 v TO EARTH GROUND a S a THERE IS ONE PORT OF EIGHT DIFFERENTIAL CHANNELS THERE ARE TWO ANALOG COMMONS YOU MUST CONNECT ANALOG COMMON wav GION ay TO EARTH GROUND TO KEEP INPUT CIRCUIT FROM FLOATING 5 000V 5v CAL REFERENCE v Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acrom
21. i20 Configuration Page This messaging function works best if the target unit s are already online and ready to receive messages It will still work if the target output units come online after the input units but may take several minutes to discover the network targets and begin transmitting to them Likewise if the input unit or the target unit s go offline remote messaging will resume on its own when the connection is re established but this healing function may take several minutes depending on which device s went offline why and for how long Note that if you happen to perform the procedure for restoring a unit to its original configuration as outlined in the Getting Out Of Trouble section of this manual all of the mapping variables are returned to their default values and any i20 mapping will have to be reconfigured Modbus TCP IP Analog Input You can use i20 to map any input channel s of this model to output channel s on a compatible target unit or to separate units WARNING The i20 mapping feature of this model maps each input channel to one output channel on another unit You must specify the correct output register address on your target unit or it won t work and you may inadvertently change the configuration of your target output device Example i20 Target Output Devices Compatible With This Unit 972EN Upto6 Current Output Channels Registers 40019 40024 973EN Up to 6 Vol
22. made up of four octets 8 bits each octet having a value between 0 255 OOH FFH It is expressed here in decimal form with a period placed between octets Note If you are in Default Mode when you change the IP address noted then when you click submit your unit will leave the default mode and will assume the new IP address This will look like you lost communication with your web browser but you simply need to change the web browser address to continue communicating with the unit Note In order to network your PC with an Acromag module you may have to consult with your network administrator and either temporarily change the IP address in your TCP IP configuration see TCP IP Properties of Network Configuration in Windows or create a separate private network using a second network adapter installed in your PC recommended This is because your IP address is likely set to an address that is outside of the address domain of the unit s default IP address The necessary steps for setting up this interface address will vary with your operating system Refer to Acromag Application Note 8500 734 or document 8500 815 for help accomplishing this located on the CDROM shipped with your unit or via download from our web site at www acromag com The Number of Modbus Sockets refers to the number 1 5 of Modbus TCP IP access points to allow for this host The default allows up to 5 sockets but you can restrict access by reducing this number
23. of the mopuLe REMOVAL 3 unit towards the rail and locate the FROM DIN RAIL al s DOWNIARD PRESSURE HERE top groove of the adapter over the Booe oeeo Mor Rom rAr upper lip of the rail Firmly push the unit towards the rail until it snaps into place To remove first separate the input terminal block s from the bottom side of the module to create a clearance to the DIN mounting area Next while holding the module in place from above insert a 46 45 44 43 42 41 TB4 Any Series 9XXEN Ethernet Module T TYPE DIN RAIL screwdriver into the lower arm of the DIN rail connector and use it as a Se ae aan ERANA lever to force the connector down X 5 Remove Terminal Blocks On This A Side To Provide Clearance PRY WITH SCREWDRIVER INSERTED IN SLOT HERE DO NOT TWIST IST TO AVOID DAMAGING PLASTIC TAB PUSH SCREWDRIVER AS SHOWN TO TILT AND LIFT MODULE OFF RAIL until the unit disengages from the rail do not twist the screwdriver to avoid damaging plastic RJ45 MDI AND IVDI X CONNECTIONS PIN MDI WIRING MDI X WIRING Receive Receive Transmit ETHERNET PORT Not Used Not Used Transmit Not Used Not Used Note Crossover Connections MNINMUMRECOMVENDED CABLE 10Base T 100M CAT 3 CAT 4 or CAT 5UTP STP 100Base T 100M CAT 5 UTP STP
24. sending requests for data Clicking your browser refresh button will restart the Java requests Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com hittp www acromag com 22 BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input WEB BROWSER Normally this unit automatically re calibrates its base A D input range every time it scans its eight input channels by reading its own calibration reference voltage at the A D channel This reference has been precisely measured Calibration Page and its value stored inside the unit from the factory This is sufficient to achieve rated accuracy using automatic calibration The relative accuracy of IMPORTANT This module calibration can be improved via software calibration facilitated with the normally performs an controls of this page or instead by issuing the appropriate Modbus register automatic calibration of zero calibration commands But if you need to calibrate to your own standard or and full scale Recalibration you want to check the accuracy of the internal calibration then you can on a channel by channel basis utilize the controls of this page to manually calibrate the inputs instead is normally NOT required except for calibration that must 2 be done to a higher standard aa Do not attempt to recalibrate a 968EN 4008 Input Calibration Page channel unless absolutely E E N EA E EEA E N required or to verify the Cle on te channel me you wheats
25. www acromag com BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input 35 This circuit employs one pair of fault tolerant 8 1 analog multiplexers each HOW IT WORKS lead to differentially drive one group of 8 channels port of current or voltage inputs to the differential channel of a 16 bit A D converter Additional circuitry can optionally connect each A D input to OV zero or a precision 5V reference to help accomplish calibration and self test The A D has a native input range of 10V 967EN models utilize the 10V range a 2000 shunt resistor converts input current to A D voltage to drive 4V for 20mA input Units include an isolated 10 100Mbps Ethernet interface for configuration monitoring calibration and control of the I O Embedded configuration parameters are stored in non volatile memory The A D rescales the inputs via a resistor divider network utilizing a series 25KO resistor and a 17KQ divider resistor additionally coupled to an internal 4 096V A D reference via a series 10KQ resistor The rescaled signals alternately connect to the ADC The ADC uses a successive approximation algorithm and internal sample amp hold circuit to convert the input signal to a 16 bit serial output stream which is transmitted to the CPU via an SPI interface The I O terminals and the Ethernet port terminals also include transient suppression Embedded configuration parameters are stored in non volatile memory A wide input high
26. 0072 0047 CH 03 Data LO IEEE 754 Floating Point LO Bytes 30073 0048 CH 03 Data HI IEEE 754 Floating Point HI Bytes 30074 0049 CH 04 Data LO IEEE 754 Floating Point LO Bytes 30075 004A CH 04 Data HI IEEE 754 Floating Point HI Bytes 30076 004B CH 05 Data LO IEEE 754 Floating Point LO Bytes 30077 004C CH 05 Data HI IEEE 754 Floating Point HI Bytes 30078 004D CH 06 Data LO IEEE 754 Floating Point LO Bytes 30079 004E CH 06 Data HI IEEE 754 Floating Point HI Bytes 30080 004F CH 07 Data LO IEEE 754 Floating Point LO Bytes 30081 0050 CH 07 Data HI Reserved IEEE 754 Floating Point HI Bytes Reserved Do Not Use Reserved Reserved Do Not Use Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual Ref Addr Holding Registers 4x References Read Write Channel Configuration Registers 40001 40008 0 1 Description Channel 00 Configuration Default is 0019H see shading Note Before setting bit 12 be sure to first calibrate the channel before using its calibration to also calibrate its entire port Data Type Format 0 Not Used 0 Calibration use AZ AS 1 Use Manual Calibration 0 Not Used 0 Do NOT use this CH Calibration for this port 1 Use this CH Cal for Calibrating this port 0 No
27. 28 1 1 100 FA The server 128 1 1 100 at 968EN 4008 requires a username and password Warning This server is requesting that your username and password be sent in an insecure manner basic authentication without a secure connection fi User User name Password C Remember my password POLNE TEO RNE password and operate the module Note If you cannot download the module s web page it may be that the address of your network interface adapter is not set to a valid IP address within the module s default address domain Refer to Applications Note 8500 734 J for information on how to accomplish this For each new browser session that accesses the Home Page of this module you will be presented with a window prompting you to enter the current User Name and Password as shown on the following page This information is required before the program will allow you to make any other selections The default user name and password is User and password00 respectively After entering these defaults you may wish to invoke the Password Configuration Page to change these parameters to something more meaningful to you IMPORTANT If you forget your user name amp password you can always toggle the unit into default mode via the DFT button at the front of the unit hold this button for 5 seconds to invoke default mode In this mode the password and username will revert to the original defaults note
28. 3 Category 4 and Category 5 The differences in classification are found in their electrical performance and this is documented in the TIA EIA 568A standard Category 5 cable includes four twisted wire pairs at eight twists per foot This device is designed for use in harsh industrial environments Acromag recommends the use of shielded cable when wiring to this device Select STP Shielded Twisted Pair cable rather than UTP Unshielded Twisted Pair The use of shielded cable will help protect the data being transmitted from harmful EMI Electromagnetic Interference and RFI Radio Frequency Interference It will also help to lower your radiated emissions by keeping the cable from emitting EMI and RFI There are two types of cable solid cable and stranded cable Stranded cables are more flexible than solid cables But since attenuation is higher for stranded cables than solid conductor cables these are generally reserved for short runs and patch applications less than 6 meters Currently there are two types of shielding employed in Category 5 STP cable single shielded cable and double shielded cable Both of these cables have the same core and jacket as UTP cables but also include a thin foil outer shield that covers all four twisted wire pairs Some variations will also include a drain wire that encircles the outer foil The double shielded version adds an outer wire screen that wraps around the foil shield and also functions as a drain wi
29. 3 consent of Acromag Inc Getting Out Of Trouble amp Sanitation 33 TECHNICAL REFERENCE For additional information KEY FEATURES wisi ficietesteivcse tive ciineieeieiweat 34 please visit our web site at HOW IT WORKG 0c ccceceee eens neces ee eeeeeeeeeeeas 35 www acromag com and MODBUS REGISTERG 0cceceeeeeeeeeeeeeenee eee eeee 36 download our whitepaper Register Functions 2 ccccseeeeeeeeeeeeeeeees 36 8500 765 Introduction to Register Mirroring cccceseeseeeeeeeeeeeeees 37 Modbus TCP IP or 8500 648 Data Types siii cece ereaaeeeaeeeisivceeds 38 Introduction to Modbus Register Map cccccccssssseeceeeesenseeeeeeeess 39 Default Register SettingS cccsceseeeeeeees 44 SPECIFICATIONS is orraa takasta aeiia 45 Model Numbers 2 ceeeeeeeeeeeeeseeeeeeeeees 45 This product is compatible Analog Inputs ccc cccccsscseesssseesseseeeeeeenes 45 with Internet Explorer 7 and MONIONY vsiiidn aston cetveinnria tidedeuhtaxcunatanieess 48 Mozilla Firefox v2 0 Enclosure and Physical ccccsssseeeeeeeeeees 49 Agency Approvals cccececeeeeeeeeeeeeeeeeeeeeenes 49 Environmental 0 eceeeeeeeeeeeeeeeeeeeeeeeeee 49 Reliability Predictions MTBF 0seseeee 50 Windows is a registered Controls E indiestore cona raran SS ae eeu ACCESSORY CABLES sscssecsssesssesssesssesseesses 52 P Patch Cable amp Crossover Cable 200 53 Acr
30. 3dB at 150KHz typical Bandwidth is dominantly restricted to the update rate of 8 channels Input Noise Rejection Common Mode Better than 72dB 60Hz typical with 200Q input unbalance Input Cable Length 1 O port interface cables should not exceed 30m in length for rated performance Floating Point Enable Disable You must enable Floating Point support in order to rescale an input signal or to accomplish integration totalization Disable it if you don t need to rescale or totalize Disabling floating point support reduces the amount of calculations that have to be performed and gives the processor more time to do other tasks besides acquiring data This can help to make critical control network applications more deterministic particularly over networks with heavy traffic flow Byte Order The unit allows you to specify the byte order for 32 bit floating point values Different Modbus systems will use different byte orders for the two 16 bit registers used to store a 32 bit floating point value Select the byte order compatible with your system Note that BO refers to the Least Significant Byte and B3 to the Most Significant Byte I20 Timing Update Time 4 0 Typical 500mS per channel Note accuracy can be improved by setting longer update times Percent of Span Average Input to Output response 28 1mS 1 Test was taken with eight 972 3EN 4006 Units connected through two switches and one hub All eight i20 channels were e
31. 6 bit Signed Integer Data normalizing it to 20000 for 30021 0014 CH 03 Data 16 bit Signed Integer Data 100 of the selected input 30022 0015 CH 04 Data 16 bit Signed Integer Data range or 0 20000 for 0 100 30023 0016 CH 05 Data 16 bit Signed Integer Data of unipolar ranges 30024 0017 CH 06 Data 16 bit Signed Integer Data 30025 0018 CH 07 Data 16 bit Signed Integer Data Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com 40 BusWorks 967 8EN User s Manual Register Map Model 967EN 4x08 Model 968EN 4x08 Note Totalized Channel Registers are NOT available on commercial models You MUST enable floating point in order to scale integrate and totalize Turn it off if you do not need to rescale integrate or totalize inputs as it will help to increase network determinism Ref Input Registers 3x References Read Only Addr Description Reserved Modbus TCP IP Analog Input Data Type Format Reserved Do Not Use Reserved Reserved Do Not Use Scaled Channel Low High Data Words 32 bit IEEE 754 Floating Point 30034 0021 CH 00 Data LO IEEE 754 Floating Point LO Bytes 30035 0022 CH 00 Data HI IEEE 754 Floating Point HI Bytes 30036 0023 CH 01 Data LO IEEE 754 Floating Point LO Bytes 30037 0024 CH 01 Data HI IEEE 754
32. 99 999 9999 12 characters including decimal portion Input Averaging Global Not Per Channel You can optionally specify the number of input samples to average together to form your input response Increasing this number will help to filter the measured response of noisy input signals but will increase the update time to 13ms from 8ms Input Averaging Enter the number of input samples to average together from 0 500 samples Selecting 0 is equivalent to selecting 1 and designates that no averaging will be performed You may increase this number to help filter the measured response of noisy input signals Note The Test Page does not display the averaged response Floating Point Configuration Global Not Per Channel Floating Point Control Enable Floating Point Support No or Yes This is normally set to No by default but must be set to Yes if you are rescaling an input or integrating totalizing an input Note that also selecting Yes to the Totalize query for any channel will automatically set this to Yes but if you later disable floating point the totalizer will just add 0 0 to the totalized value Disable IEEE Floating Point if you are not rescaling integrating or totalizing the input Selecting No to disable floating point support will reduce the amount of calculations that have to be performed and gives the processor more time to do other tasks besides acquiring data and this is recommended whe
33. Acromag i BusWorks 900EN Series Modbus TCP IP 10 100MB Industrial Ethernet I O Modules Industrial Grade Model 967EN 4008 Eight CH Differential Current Inputs Model 968EN 4008 Eight CH Differential Voltage Inputs Commercial Grade Model 967EN 4C08 Eight CH Differential Current Inputs Model 968EN 4C08 Eight CH Differential Voltage Inputs USER S MANUAL THERNET hte 4 DFT k w 1 T i xi m d i i 00 04 LW a u E w g A ay ACROMAG INCORPORATED Tel 248 295 0880 30765 South Wixom Road Fax 248 624 9234 P O BOX 437 Email sales acromag com Wixom MI 48393 7037 U S A Web http www acromag com Copyright 2009 2010 Acromag Inc Printed in the USA Data and specifications are subject to change without notice 8500 806 E12A011 2 BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input TABLE OF IMPORTANT SAFETY CONSIDERATIONS You must consider the possible negative effects of power component CONTENTS wiring sensor or software failure in the design of any type of monitoring or control system This is very important where property loss or human life is Symbols on equipment involved It is important that you perform satisfactory overall system design and it is agreed between you and Acromag that this is your responsibility AN GETTING STARTED MOUNTING AND DIMENSIONS 3 Means Refer to User s CONTROLS amp INDICAT TORS a 3 Manual this manual for ISOLATION BARRIERG 2 se
34. Base TX Support with auto negotiated 10 100Mbps Half or Full Duplex Rugged Network Ports are safety isolated from each other and transient protected for ESD EFT and other transients Auto MDI MDI X Crossover requires no special up down link port or crossover cables to connect this device to your PC or an external Ethernet switch or hub Nonvolatile Reprogrammable Memory allows the functionality of this device to be reliably reprogrammed thousands of times Operating amp Diagnostic LED s Aide Troubleshooting with two LED s to indicate power operating mode wink status plus two communication LED s for port activity and link status Internal Watchdog timer is built into the microcontroller that causes it to initiate a self reset if the controller locks up or fails to return from an operation in a timely manner Convenient Wink ID Mode will blink the green RUN LED as a tool to help identify specific remote units Wide Ambient Operation from 40 C to 70 C Industrial models Hardened For Harsh Environments and protection from RFI EMI ESD EFT amp surges Has low radiated emissions per CE requirements Plug In Terminal Blocks make wiring removal amp replacement easy Enclosure Has Integrated DIN Rail Mount for T type DIN rail Wide Range DC Power is diode coupled for use with redundant supplies and or battery back up Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http
35. Cn eatin es vite ded mts accuracy of internal oie TEN calibration as inadvertent mis C e WY calibration will negatively affect the channel s performance Reset Calibration R store All Default Calibration Values Restore All Default Scaling ing Values Calibration Configuration wikata amiidiga oie Ya fas Seats ten Us Gat Eta Voltage Refence Calibration Use the scroll bars to the right to scroll down the page eix Calibration Configuration Use this channels calibration for al channels in the port No Yes Use Auto Zero Auto Span Use Channel Calibration Voltage Refence Calibration Enter the measured valve of the internal voltage reference m the field below and cick on the Subent Reference Value button Comsrisht 2008 Acroenne Inc All rights reserved Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual You have 3 options for accomplishing input calibration The first option is to simply accept the default response of automatic input calibration The second option will allow you to achieve better accuracy by manually calibrating one channel from the port and using that channels response to represent all 8 channels of the port This effectively calibrates the A D channel that the port connects to and saves some time while improving accuracy Your third option is to manually calibrate each input channel separatel
36. Connects to Pin 5 Not Used Connects to Pin 4 Rx Receive Negative Not Used Connects to Pin 8 Not Used Connects to Pin 7 DIN Rail Mount Type EN50022 T rail 35mm I O Connectors Removable plug in type terminal blocks rated for 15A 300V AWG 12 24 stranded or solid copper wire Case Material Self extinguishing NYLON type 6 6 polyamide thermoplastic UL94 V 2 color beige general purpose NEMA Type 1 enclosure Printed Circuit Boards Military grade FR 4 epoxy glass Shipping Weight 1 pound 0 45 Kg packed Safety Approvals CE marked EMC Directive 2004 108 EC UL Listed UL508 17th Edition ANSI ISA 12 12 01 2007 cUL Listed Canada Standard C22 2 Nos 142 M1987 amp 213 M1987 Hazardous Locations Class l Division 2 Groups A B C D Safety Approvals 967EN 4C08 and 968EN 4C08 CE marked EMC Directive 2004 108 EC Operating Temp Industrial Grade 40 C to 70 C 40 F to 149 F Operating Temp Commercial Grade 0 C to 55 C 32 F to 131 F Storage Temp Industrial Grade 40 C to 85 C 40 F to 185 F Storage Temp Commercial Grade 0 C to 70 C 32 F to 158 F Relative Humidity 5 to 95 non condensing Power Requirements 18 36V DC SELV Safety Extra Low Voltage 1 944W maximum Observe proper polarity Keep DC power cables less than 10m in length Divide power by your voltage to approximate maximum current and select a supply that can deliver at leas
37. Floating Point HI Bytes 30038 0025 CH 02 Data LO IEEE 754 Floating Point LO Bytes 30039 0026 CH 02 Data HI IEEE 754 Floating Point HI Bytes 30040 0027 CH 03 Data LO IEEE 754 Floating Point LO Bytes 30041 0028 CH 03 Data HI IEEE 754 Floating Point HI Bytes 30042 0029 CH 04 Data LO IEEE 754 Floating Point LO Bytes 30043 002A CH 04 Data HI IEEE 754 Floating Point HI Bytes 30044 002B CH 05 Data LO IEEE 754 Floating Point LO Bytes 30045 002C CH 05 Data HI IEEE 754 Floating Point HI Bytes 30046 002D CH 06 Data LO IEEE 754 Floating Point LO Bytes 30047 002E CH 06 Data HI IEEE 754 Floating Point HI Bytes 30048 002F CH 07 Data LO IEEE 754 Floating Point LO Bytes 30049 0030 CH 07 Data HI Reserved IEEE 754 Floating Point HI Bytes Reserved Do Not Use Totalize Reserved d Chan Low High Data Words 32 bit IEEE 754 Floating Point Reserved Do Not Use 30066 0041 CH 00 Data LO IEEE 754 Floating Point LO Bytes 30067 0042 CH 00 Data HI IEEE 754 Floating Point HI Bytes 30068 0043 CH 01 Data LO IEEE 754 Floating Point LO Bytes 30069 0044 CH 01 Data HI IEEE 754 Floating Point HI Bytes 30070 0045 CH 02 Data LO IEEE 754 Floating Point LO Bytes 30071 0046 CH 02 Data HI IEEE 754 Floating Point HI Bytes 3
38. L A 7 a mee ANALOG COMMON DIGITAL COMMON Ed GND IT IS RECOMVENDED TO CONNECT NOTE A iSO alt INPUT TERMINAL TO COMVON C THE C TERMINAL IS ANALOG COMVON AND i iii IF INPUT SIGNAL IS NOT ALREADY INTERNALLY ISOLATED FROM ROUNO A GROUNDED TO KEEP DIFFERENTIAL BY ASAFETY RATED ISO FONG ence INPUTS FROM FLOATING Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual This module supports Modbus over TCP IP You may use your own Modbus TCP IP Analog Input Q WEB BROWSER software to issue Modbus commands to this module see Modbus Registers or you may use a standard web browser as these modules have built in web pages that allow you to setup and control the module Simply Home Page execute your web browser type the IP address assigned to your module in the Address window http 128 1 1 100 for our example click Go and you will be presented with a Home Page window similar to that shown below Home Page Windows Internet Explorer o hetp j 128 1 1 100 Bile Edit Wew Favorites Tools Help Google G Fl cos O Bh T Bookmarks E 1 blocked 3 check Autolink We k PSrtome page The Home Page provides buttons to access the other web pages of this module that are used to configure 3 the network parameters emet change the user name and 0 BEBE e MAE ap Send tow settings Connect to 1
39. LE SHOOTING Diagnostics Table Upon power up after blinking momentarily the green Run LED should remain ON This indicates the unit is properly powered and operating normally If RUN continues to blink then the unit may not be connected to the network or the cable is bad Otherwise a continuous blinking RUN LED can indicate unit is in wink ID mode or it may be indicative of a firmware initialization error Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com 32 BusWorks 967 8EN User s Manual TROUBLE SHOOTING Diagnostics Table If your problem still exists after checking your wiring and reviewing this information or if other evidence points to another problem with the unit an effective and convenient fault diagnosis method is to exchange the unit with a known good unit Acromag s Application Engineers can provide further technical assistance if required Complete repair services are also available from Acromag Modbus TCP IP Analog Input POSSIBLE CAUSE POSSIBLE FIX Cannot Access Web Pages Unit Won t Accept Username amp Password Have you forgotten your username and password settings Return the unit to the Default Mode and use the default username and password to access the Password Configuration Page to reset them to something you can remember Communication To Unit is Lost Was communication interrupted by severe interference
40. Model 5035 355 A yellow 3 foot long single shielded Category 5e CABLES STP patch cable with drain wire and an RJ45 plug at both ends Use this cable to connect an Acromag 9xxEN I O module to the Acromag 900EN Patch Cables amp S005 switch Cable Model 5035 360 A green 5 foot long single shielded Category 5e Crossover Cables STP crossover cable with a drain wire and an RJ45 plug at both ends This cable performs the Ethernet crossover function and is used to connect a PC directly to an Acromag Series 9xxEN I O module Note that you do not need to use a crossover cable to connect your PC to this module or if you re using the Acromag 900EN S005 switch as the 967 8EN is auto crossing You may obtain cable in other lengths and colors as required for your application from other vendors For example shielded CAT 5e cable is available from the following vendors e L com Connectivity Products www L com com e Pro Link www prolink cables com For very noisy environments or in the presence of strong electrical fields you can obtain double shielded CAT 5e cable and shielded RJ45 plugs from the following vendors e L com Connectivity Products www L com com see cable model TFSC2004 and shielded plug T8P8CSR e Regal Electronics www regalusa com see shielded plug model 1003B 8P8CSR C5 Complete premium double shielded Category 5e standard and crossover cables in variable lengths can be obtained from Lumberg at www lumbergusa
41. Non Volatile This 8 Kilobyte memory is resident on the I O board and is used to store the channel configuration calibration coefficients and scaling information for the inputs It is user modified via channel setup and calibration Its contents can be cleared to factory default calibration values by clicking the Restore All Default Calibration Values button of the Input Calibration web page SRAM Volatile This 96 kilobyte memory is integrated within the central processor and is used as scratchpad memory by the processor during run time Its contents are cleared at power down PSRAM Volatile This 4 Megabyte memory is external to the central processor and used as the run time memory for high speed execution of this unit s internal program Its contents are cleared on power down Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input 49 Dimensions 1 05 inches wide 4 68 inches tall 4 35 inches deep Refer to the dimensions drawing at the front of this manual Network Connector 8 pin RJ 45 socket with metal shield shield is isolated and bypassed to earth ground at the GND terminal with an isolation capacitor and TVS Connections are wired MDI but unit is auto crossing Use CAT 5 cable minimum to connect module to a PC Signal MDI Description Tx Transmit Positive Tx Transmit Negative Rx Receive Positive Not Used
42. TTON SWITCH DEFO FHH press To SET DEFAULT ADDRESS H D ieee AND ACTIVITY LED YELLOW DEFAULT ADDRESS TBI TB4 TBS AACA AAAA L Acromag L 46 3 42 136 35 34 33 32 3 RUN ST RUN PWR LED GREEN geese ae zt O ket MODULE STATUS Sse gs LED YELLOW Eer 0 8 8 iea oo KJ INPUTS6 7 PWR LINK ACTIN ETHERNET LINK GREEN y a 11 12 13 14 15 16 HK 21 22 23 24 25 26 bet CONNECTOR ARARAAR AAAAAA XY ao sssssi spif sP TERMINAL BLOCKS TRY TRA 3 90 99 1 4 35 ANALOG IN 110 5 TB4 TB3 TB4 36 35 34 33 32 31 46 45 44 43 42 41 a i gssges 218 8 INPUTS 6 7 PWR l TRANSFORMER 33v 3 iq IC IC gt TRANSFORMER 5 9V 5 le 967 8EN ISOLATION DIAGRAM 3 a O E w z INPUTS 3 4 5 TB2 pa i M111 12 13 14 15 16 21 22 23 24 25 26 XK J TB1 SISS TBA ANALOG IN SSSSSSE ANALOG IN Modbus TCP IP Analog Input 3 MOUNTING AND DIMENSIONS Unit mounts to T type DIN rails 35mm type EN50022 Units may be mounted side by side on 1 inch centers
43. achieve Current 967EN Model the full scale endpoints exactly 967EN units also utilize the 10V A D or range but with 2000 precision shunt resistors 0 125W at the inputs to Voltage 968EN Model convert input current to voltage such that 20mA DC 22mA Max drives 4V full scale to the A D 967EN input sub ranges of 0 20mA and 4 20mA may also be selected Inputs may optionally be rescaled to support sub ranges of nominal ranges or to accomplish integration and totalization of the input signal All selectable input ranges are normalized to 20000 for 100 of range or 0 20000 for 0 100 of range over range is 2000 or 2500 for 4 20mA range Positive current or voltage is delivered to the input terminal and returned on the negative input terminal Input Resolution 305 176uV bit 10V and 5V or 1 5259uA bit 967EN The internal 16 bit A D resolution is 82768 parts for 10V range and 13107 14 6 bits for 20mA as this drives only 4V full scale to the 5V 16 bit A D input channel All input ranges are normalized to 20000 counts or 0 20000 counts by the firmware Your effective resolution will vary with your range selection and input scaling Normalized Resolution for 968EN Input Ranges Raw A D 32768 16 bit 16384 15 bit Resolution 305 176uV bit 305 1 76uV bit PPM Normalized 13107bits 0 13107bits 2621 13107bits 14 6 bits 14 6 bits 14 3 bits Raw A D Resolutio
44. ag com 36 BusWorks 967 8EN User s Manual MODBUS REGISTERS The x following the leading character represents a four digit address location in user data memory The leading character is generally implied by the function code and omitted from the address specifier for a given function The leading character also identifies the VO data type Register Functions Modbus TCP IP Analog Input Modbus registers are organized into reference types identified by the leading number of the reference address Read Write Discrete Outputs or Coils A Ox reference address is used to drive output data to a digital output channel Read Discrete Inputs The ON OFF status of a 1x reference address is controlled by the corresponding digital input channel Read Input Registers A 3x reference register contains a 16 bit number received from an external source e g an analog signal Read Write Output or Holding Registers A 4x register is used to store 16 bits of numerical data binary or decimal or to send the data from the CPU to an output channel Note The ON OFF state of discrete inputs and outputs is represented by a 1 or 0 value assigned to an individual bit in a 16 bit data word port This is sixteen Ox or 1x references per data word With respect to mapping the Isb of the word maps to the lowest numbered channel of a port and channel numbers increase sequentially as you move towards the msb All I O value
45. are NOT available on commercial models Note You must separately enable floating point if you enable the totalizer here see Floating Point Enable register IMPORTANT If you set bit 12 to use this channel s calibration for the entire port note that the channel must already be manually calibrated for this to work properly Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com 4 BusWorks 967 8EN User s Manual Register Map Model 967EN 4x08 Model 968EN 4x08 Shaded registers from 40025 to 40056 are write restricted and reserved for internal firmware and factory use these registers are modified indirectly by the calibration registers 40112 40113 Do not attempt to directly modify the contents of these registers Ref Addr Description Modbus TCP IP Analog Input Data Type Format Holding Registers 4x References Read Write Miscellaneous Unit Configuration Registers 40017 40021 40017 0010 Input Averaging Def 0000H No Averaging Set to 0 or 1 for No Averaging Set to an integer greater than 1 to specify the number of samples to average 500 samples maximum 0011 Global Floating Bit 15 Floating Point ON OFF Point Enable and Byte Order Def 0000H disabled Reserved 0 OFF 1 ON 0 Not Used Data Word Byte Order b3 b2 b1 bO bO b1 b2 b3 b1 bO b3 b2 b2 b3 bO b1 Reserved Do Not Use Bits14 2 Bits
46. ation already done for this channel will apply to all eight port channels the 8 channels are multiplexed to the same A D channel This selection should be done only after calibrating this channel This saves additional time by only requiring one manual calibration per port When done properly with very accurate signal sources and measurement equipment this method of calibration is generally better than auto calibration but not as accurate as calibrating per channel as calibrating each channel individually would additionally compensate for the small errors contributed by the input filters and input and input multiplexer Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual Note If calibrating one channel per port the other channel s should have Use Channel Calibration selected Selecting yes automatically selects Use Channel Calibration for the remaining port channels You can still override this auto selection by subsequently selecting another option for any number of the other port channels Use Auto Zero Auto Span Bullet Clicking this bullet will use automatic calibration for the selected input channel default behavior With automatic calibration the port utilizes the on board 5V 0 05 5ppm C reference source and ground to calibrate the input Only the OV and 5V range points are actually auto calibrated while calibration of 5V and
47. ays click the Reset Calibration button to start over from Zero calibration Step 1 The A D 5V or 10V range is now calibrated for this channel Note that the 967EN always uses 20mA into its 200Q shunt to drive 4 0V to the 10V A D input If your calibration configuration selected No for the query Use this cannel calibration for all channels of this port then you should repeat this procedure for the other channels If Yes was selected for this query then you do not need to repeat this procedure as this calibration will be used to determine the response for the other port channels Modbus TCP IP Analog Input 2 1 WEB BROWSER Calibration Page If you are not satisfied with auto calibration you can choose to use the web browser calibration page to achieve manual calibration easier or via direct Modbus register access as described in Method 2 of the following page Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com 28 BusWorks 967 8EN User s Manual WEB BROWSER Calibration Page Modbus TCP IP Analog Input Method 2 Input Calibration via The Modbus TCP IP Interface J Write the appropriate Channel Configuration Register to select the input range to be calibrated for the input channel 968EN units can select 5V or 10V 967EN models will always use the 20mA range to calibrate even if you select one of the other ranges This optimi
48. com refer to their etherMate line For example specify RJ45S RJ45S 656 B 3M for a double shielded 3 meter straight cable Specify RJ45S RJ45S 656 BX 3M for a double shielded 3 meter crossover cable Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com
49. corresponds to Model 968EN 4x08 Channels channel number Write a set bit Ch 7 0 to this register to trigger the A D to sample the corresponding input s and store the positive calibration signal Isb is lowest numbered channel of this group First write 24106 to Calibration Access Register 40037 to remove write protection from the calibration value registers This block Mirrors Refer to Register Mirroring 1xxxx 1xxxx Registers Input Status Registers are mapped to the 41xxx Holding Register space using an address offset of 41000 This block Mirrors Refer to Register Mirroring Oxxxx Oxxxx Registers Coil Registers are mapped to the 42xxx Holding Register space using an address offset of 42000 This block Mirrors Refer to Register Mirroring 3xxxx 3xxxx Registers Input Registers are mapped to the 43xxx Holding Register space using an address offset of 43000 Notes Register Map 1 The 16 bit A D range uses an A D count of 82768 counts for its native 10V input range To simplify all input ranges are subsequently normalized to a count of 20000 by the unit and this corresponds to 100 or 0 20000 corresponding to 0 100 2 967EN Models have a fixed A D range of 10V but use a 2000 input shunt to drive 4 0V to the A D representing 20mA input Bipolar current ranges are normalized to 20000 by the unit corresponding to 100 Unipolar current ranges are normalized to 0 20000 for 0 100 Default Regi
50. d D or non hazardous locations only Industrial Models ONLY WARNING EXPLOSION HAZARD Substitution of components may impair suitability for Class I Division 2 WARNING EXPLOSION HAZARD Do not disconnect equipment unless power has been switched off or the area is known to be non hazardous Reference Standard CNR indicates investigation to Canadian Standard C22 2 No s 142 M1987 amp 213 M1987 USR indicates investigation to United States UL Standards 508 Seventeenth Edition amp ISA 12 12 01 2000 MTBF Mean Time Between Failure MTBF in hours using MIL HDBk 217F FN2 967EN 4008 968EN 4008 25 C 603 470 hrs 615 185 hrs 40 C 420 948 hrs 428 160 hrs Per MIL HDBK 217 Ground Benign Controlled GgGc Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input D 1 Connector Shielded RJ 45 socket 8 pin 10BaseT 100BaseTX SPECIFICATIONS Wiring Wired MDI X w Auto Crossover support Protocol Modbus TCP IP w Web Browser Configuration Modbus Port Up to 5 sockets supported uses port 502 reserved for Modbus The port number can be optionally changed to any number from 0 to 99999 to fit the application Transient Protection Transient Voltage Suppressors are applied differentially at both the transmit and receive channels The metal shield is capacitively coupled to earth ground terminal via an isolation TVS and
51. d at left unit assumes IP address 128 1 1 100 allowing you to re invoke the Password Configuration Page and change the username and password as required Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com hittp www acromag com 1 0 BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input WEB BROWSER Password Configuration Page Network Configuration 968EN 4008 Password Configuration Page New Username and Password name pasword Verify Username and Password name password f Network Confguraion Page Test Pago Input Configuration Page Utility Page ome Page fe 2009 Inc All rights reserved Use up to 20 alphanumeric characters case sensitive to specify your username and 10 alphanumeric characters case sensitive to specify a password You will have to type these entries in twice to help prevent errors Click the submit button to write your changes to the module After completing your username password changes click on the appropriate button at the bottom of the page to select another web page If you made changes you may be prompted to re enter your new username and password before being permitted to move to other pages After setting your username and password you can click the Network Configuration Page button and a screen similar to that shown below will appear Use this screen to set the network configuration parameters for your module these parameters ca
52. dure to try restoring its firmware configuration WARNING Use this only as a last resort as this procedure will reset everything to its default state all holding registers and network settings the permanently coded MAC ID does not change 1 With unit power OFF depress and hold the front panel DFT push button 2 With DFT depressed apply power 3 Note that the green RUN LED will turn ON Continue to hold the push button depressed for about 5 seconds until the green RUN LED turns OFF Release the DFT push button at this point and the RUN LED will blink for 1 20 seconds as the unit acquires its address then remain ON for normal operation normal boot At this point the unit is not in the default communication mode but all registers are reset back to their default factory state 4 If the green RUN LED never turned OFF while you held the DFT push button during power up then reinitializing the unit has failed and you should try it again This time make sure that the DFT push button switch is completely depressed and held until RUN turns OFF while powering the unit If you do use restore and want to return the unit to service you will also have to separately restore the calibration reference Modbus TCP IP Analog Input 3 3 TROUBLE SHOOTING Trouble Browsing Your Unit Getting Out Of Trouble Oe So your unit has apparently gone wild and power cycling the unit did not correct your problem then follow
53. e Modbus register commands to calibrate the inputs see below then this has the added benefit of being able to correct for any negative full scale offset as auto calibration only utilizes OV and 5V to calibrate the bipolar input For current inputs manual calibration additionally compensates for the initial error of the input shunt resistor up to 0 05 IMPORTANT Always allow the module to warm up a few minutes prior to calibration Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual Method 1 Channel Calibration Using the Built In Browser Interface s Bring up the browser interface and select the Input Calibration Page 2 Allow the module to warm up a few minutes before continuing 3 Browse to the bottom of the Calibration Page and check that the reference field indicates a voltage between 4 996 and 5 003 5V 0 08 If you suspect this is inaccurate this voltage will have to be precisely measured and input in this field first this requires that unit be removed from its enclosure see Optional Reference Calibration above 4 For best results Zero is always calibrated before full scale Note the Zero Calibration Point indicated in its field You must apply this exact input signal to the input channel being calibrated to proceed Your signal source should be accurate to better than 0 05 auto calibration standard 967EN Units Th
54. e GND terminal via isolation capacitors and transient voltage suppressors You must connect earth ground to complete this path and ensure protection Additional earth grounding is also recommended at input analog common see connection drawings Connect analog current 967EN or voltage 968EN signals to the input terminals as shown below Input channels are differential TB1 and TB2 each support 3 differential input channels while TB4 supports 2 differential inputs and two Common returns C The common connections are optionally used to reference input channels to analog Earth Ground Warning To comply with safety and performance standards use shielded cable and connect earth ground as noted Failure to use good wiring and grounding practices may be unsafe and negatively affect performance Analog Inputs The Common C terminal is connected to analog common of the circuit This is used to reference analog input common to earth ground and to reference any differential input channels to earth ground if they would otherwise be left floating common if they would otherwise be left floating This terminal is also used to reference the input circuit common to earth ground Current Inputs 967EN Models Only Input is bipolar differential which allows current to be input on either lead positive or negative Current 20mA is converted to voltage 4 0V via precision 200Q shunt resistors inside the unit This voltage drive
55. e web browser For detailed information on Modbus feel free to download our technical reference 8500 648 Introduction To Modbus at www acromag com You can also find more information specific to Modbus TCP IP by downloading whitepaper 8500 765 Introduction To Modbus TCP IP Additional information regarding Ethernet can also be found in our whitepaper 8500 747 Introduction To Ethernet IP For your convenience the 967 8EN mirrors the contents operation of Register Mirroring registers Oxxxx 1xXxxx amp 3xxxx as applicable into holding register space for systems and controllers that cannot directly access registers 0xxxx 1XXXX amp SXXXxX All Modbus registers can be written to or read from using either the standard methods described in the Modbus specification or through mapping mirroring to the Holding Registers The registers are mapped as follows and specifics follow the mapping Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com hittp www acromag com 38 BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input MODBUS Oxxxx Coil Registers are mapped to 42xxx Holding Registers 1xxxx Input Status Registers are mapped to 41xxx Holding Registers REGISTERS 3xxxx Input Registers are mapped to 43xxx Holding Registers Register Mirroring For 3xxxx Input Registers the format of the registers is identical and you only need to offset your address by 43000 For exa
56. e zero input signal is always 20mA This is equivalent to delivering 20mA to the terminal and returning it at the terminal This produces an A D calibration voltage of 4 0V 968EN Units The zero input signal is a negative voltage of 9 95V or 5V according to input range configuration Note that if you do not have a precision negative voltage just flip the differential positive and negative terminal connections and use a precision positive voltage After applying the Zero Calibration signal to the channel simply click the Step 1 button to calibrate the zero If you make a mistake you can always click the Reset Calibration button to start over from Calibrate Zero Step 1 5 Note the Full Scale Calibration Point indicated in its field You must apply this exact input signal to the input channel being calibrated Your signal source should be accurate to better than 0 05 auto calibration standard 967EN Units The full scale calibration input signal is always 20mA This is equivalent to delivering 20mA to the terminal and returning it at the terminal This produces an A D calibration voltage of 4 0V 968EN Units The full scale input signal is a positive voltage of 9 95V or 5V according to your input configuration After applying the correct Full Scale Calibration signal to the channel simply click the Step 2 button to calibrate the full scale If you make a mistake you can alw
57. eeeceeeeeeeeeeeees 3 additional information CONNECTIONS watiscmescattiutercaiatcirennasercn 4 DIN Rail Mounting amp Removal 4 The information of this manual NefWOTK iaoee scat ces a aaia 4 may change without notice POWET sssssssseeseserennneorernnnteerrinnnnnennnnnneeennnn 6 Acromag makes no warranty Earth Ground ines cccccccdscestececeeesendetedecesnercecetes 7 of any kind with regard to this Analog Inputs 0 cccccccessseceeeeeesseeeeeaes 7 material including but not Analog COMMON cccccccececeeeseeeesseeeees 8 limited to the implied WEB BROWSER ives 5000s s8ccevs ees edie 9 warranties of merchantability Home Page iin setea a 9 and fitness for a particular Password Configuration Page 0 10 purpose Further Acromag Network Configuration Page 0sssceseseeen 10 assumes no responsibility for i20 Configuration Page ccceseeeeeeeeeeeereee 13 any errors that may appear in Input Configuration Page cccseeseeeeeeeeees 16 this manual and makes no T OSU Pag Cues icc iccciccnencectevesen vent RNEER ENEEK 21 commitment to update or Calibration Page 22 keep current the information libration PAGE ereeseeeeeeeeeteeeeteteeeteeeees cont iried ip this manual No ROUBLE RAOIN a EE A ETT part of this manual may be E DOTING esses teeeeentetetetetetetetae copied or reproduced in any Diagnostics Table E T T 31 form without the prior written Trouble Browsing Your Module EEE E 3
58. eger Data CH02 10V Cal LO 16 bit Signed Integer Data Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input 43 Ref Addr Description Data Type Format Register Map Holding Registers 4x References Read Write Calibration Value Registers 40025 40056 CH3 5V Cal HI 16 bit Signed Integer Data CH3 5V Cal LO 16 bit Signed Integer Data CH3 10V Cal HI 16 bit Signed Integer Data CH3 10V Cal LO 16 bit Signed Integer Data CH4 5V Cal HI 16 bit Signed Integer Data CH4 5V Cal LO 16 bit Signed Integer Data CH4 10V Cal HI 16 bit Signed Integer Data CH4 10V Cal LO 16 bit Signed Integer Data CH5 5V Cal HI 16 bit Signed Integer Data CH5 5V Cal LO 16 bit Signed Integer Data CH5 10V Cal HI 16 bit Signed Integer Data CH5 10V Cal LO 16 bit Signed Integer Data CH6 5V Cal HI 16 bit Signed Integer Data CH6 5V Cal LO 16 bit Signed Integer Data CH6 10V Cal HI 16 bit Signed Integer Data CH6 10V Cal LO 16 bit Signed Integer Data CH7 5V Cal HI 16 bit Signed Integer Data CH7 5V Cal LO 16 bit Signed Integer Data CH7 10V Cal HI 16 bit Signed Integer Data CH7 10V Cal LO Reserved 16 bit Signed Integer Data Reserved Do Not Use Reserved Reset Totalizer T
59. entary push button switch is located on the front panel and is used to toggle the module into or out of Default Communication Mode In Default Mode the module assumes the fixed static IP address 128 1 1 100 a default subnet mask 255 255 255 0 a default username of User and a default password of password00 This switch can also be used to restore the module to its initial factory configuration by holding this switch in its default position while powering up the unit see Getting Out Of Trouble in the Troubleshooting section for more information Indicators LED s RUN Green Constant ON if power is on and unit is OK Continuous flashing ON OFF indicates unit is in wink ID mode ST Orange Slowly blinks ON OFF in default mode and stays ON if an under over range condition occurs LINK Green Indicates Ethernet link status ON if auto negotiation has successfully established a connection ACT Orange Indicates current activity on the Ethernet port ON if data is being transmitted or received Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com 5 BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input ACCESSORY CABLES The minimum cable required for full operation of this device is Category 5 The term Category refers to classifications of UTP Unshielded Twisted Pair cables There are 3 main categories of cable Category
60. es not transfer scaled values scaled units preload values nor any floating point information or any items not represented in a register The Export Status window will let you know if the configuration was received correctly at the remote station destination stations may still require their own calibration Note Unit will only export its configuration to identical model numbers An industrial 968EN 4008 cannot export to a commercial version 968EN 4C08 Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual POSSIBLE CAUSE POSSIBLE FIX Green RUN LED Does Not Light Bad connections Recheck Power Connections Try a system reset Cycle the power to the unit Internal 3 3V power has failed or a fatal processor firmware error has occurred Return unit for repair Input Power TVS has failed This could occur for a sustained voltage surge or continuous over voltage at the power terminals Return unit for repair Power should be fused externally or current limited to a safe operating level no less than twice the maximum input current Continuous Flashing Green RUN LED A network link has not been established A normal unit will flash the green RUN LED and maintain a solid STATUS LED at startup until a link has been established Check your cable and switch hub connections Once a link is established the green Run LED shou
61. ese selection properly to avoid unexpected results Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com 1 6 BusWorks 967 8EN User s Manual WEB BROWSER i20 Configuration Page Input Configuration Page After completing the username amp password assignment plus the network configuration parameters use the Input Configuration page to set your input ranges rescale inputs setup integration totalization setup floating point required for scaling integration totalization reset the totalizer enable disable scan groups and reset the unit Once you have carefully made your selections click the Channel Configuration Submit button at the bottom of the page to activate your configuration reconfiguration takes effect immediately following Channel Configuration Submit Modbus TCP IP Analog Input Case Study Example i20 Operation SPAN CHG UPDATE TIME IP ADDRESS Non Zero Address Non Zero Address Non Zero Address 0 0 0 0 Zero Address Non Zero Address Results CASE 1 The current input value is sent via i20 every 25 seconds CASE 2 An i20 message is sent whenever the input changes by more than 25 of the input span Additionally the module will send a heartbeat message every 60 seconds to keep the receiving socket open and ready for input This heartbeat value is the current SPAN reference value the last va
62. f 48 bit addresses to use They are restricted to use only the addresses in their series and only one time thus ensuring that no two computers in the world will ever have the same network address An Ethernet packet will include two 48 bit address fields appended to it that represent the MAC address of the sending computer and the destination computer In IEEE 802 networks the Data Link Control DLC layer of the OSI Reference Model is divided into two sub layers the Logical Link Control LLC layer and the Media Access Control MAC layer It is the MAC layer that interfaces directly with the network media and where this address distinction is applied each different type of network media requires a different MAC layer Use Static IP Addressing tells this unit to fix the IP address setting to the Static IP Address specified By default the unit is set to use Static IP Addressing and a Static IP Address of 128 1 1 100 You can optionally choose to have the IP address assigned dynamically via DHCP BOOTP or DHCP BOOTP w Fallbacks This will also require that you specify a valid Host Name see above Use DHCP tells the unit its IP address is to be obtained dynamically and may change each time this device is connected to the network Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input 1 3 Use DHCP w Fallbacks works the same way
63. f the Acromag unit That is an address from 128 1 1 0 to 128 1 1 255 except for 128 1 1 0 which is typically reserved for servers and 128 1 1 100 which is the default address of the 967 8EN itself Once you are able to address the unit at its default address you can then reconfigure its IP address setting to an address more meaningful to your own network Application Note 8500 734 is downloadable from the Acromag website and covers this process in greater detail HOST PC CONNECTED DIRECTLY TO A MODULE CAT 5 UTP CABLE HOST PC Modbus TCP IP Analog Input D CONNECTIONS Network A crossover cable simply connects the differential transmit pair on each enad to the receive pair on the opposite end Use a standard direct cable when connecting to a hub or switch port which are generally wired MDI X fd UP TO 100 VETERS o o S Use Regular or Crossover Cable E l Refer to the Accessory Cables section at the back of this manual for more information on accessory cables including patch and crossover cables available from Acromag and other vendors TIP You can significantly enhance the EMI RFI performance of your network connections by using Category 5E STP cable Shielded Twisted Pair with shielded RJ45 plug connectors This will also help to protect your installat
64. figuration Page Password Configuration Page Test Page Input Configuration Page Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com hittp www acromag com 30 BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input WEB BROWSER Input Self Test Control The Self Test makes use of built in calibration reference signals to check the operation of input ports and reference If the Span and Zero values are within the allowable specs the unit will display PASS If the Span or the Zero is out of specification the unit will display FAIL This can serve as a trouble shooting aide if you are experiencing problems It does not require that you connect anything to the input and doing so will not affect the results of this test Likewise you do not have to disconnect your input signals to run this test Utility Page Connecting field input signals during self test will not harm the unit as the input port multiplexer is disabled during self test and no signal contention is possible Each channel is internally multiplexed to a pair of input buffers that drive a 16 bit 10V A D channel The Self Test Control will test the relative accuracy of the input ports by sampling the reference signals Simply click the Start Self Test to begin testing This triggers the unit to momentarily connect each A D input channel s buffers each port channel to the internal reference signals OV and 5V and
65. ge from 0 99999 but most popular applications will use port numbers at the low end of this range already set aside for specific applications such as 502 for Modbus or 80 for HTTP For example ports make it possible for you to check your email and browse the web at the same time because web browsers use port 80 while retrieving your email uses port 110 Gateway refers to the IP Address of the gateway if your local area network happens to be isolated by a gateway Typically it is assigned the first host address in the subnet If a gateway is not present then this field should contain an unused address within the host subnet address range A gateway is a device which links dissimilar networks and transfers data between them at the application layer level In this way Gateways essentially convert messages from one protocol to another The Active IP Address refers to the current IP Address being used by this host as opposed to any new assignments being made via this page The MAC Address refers to the Media Access Control address that uniquely identifies the MAC hardware of this device All Ethernet devices have their own MAC address This is a unique fixed address that was assigned to the MAC at its manufacture It is not to be confused with the dynamically assigned 32 bit IP Address commonly denoted as four 8 bit numbers separated by periods e g 128 1 1 100 Every manufacturer producing Ethernet hardware has by assignment a series o
66. iately with no reset required You must apply the exact input full scale signal to the input channel being calibrated Your signal source should be accurate to better than 0 05 auto calibration standard 967EN Units The full scale calibration input signal is always 20mA This is equivalent to delivering 20mA to the terminal and returning it at the terminal This produces an A D calibration voltage of 4 0V 968EN Units The full scale input signal is a positive voltage of 9 95V or 5V according to your input configuration Write a 16 bit word into the correct Span Cal Trigger Register with a set bit in the bit position that corresponds to the channel you wish to calibrate full scale at You would write to the Span Cal Trigger register to address channels 0 7 A set bit in these registers will trigger the unit to sample the corresponding channel capture the full scale signal and store the digital count The unit will replace calibration coefficients immediately with no reset required Repeat these steps for the other input channels to be calibrated When finished calibrating write 0x0000 to the Calibration Access Register to replace write protection for the calibration registers and to help prevent potential miscalibration Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input 29 You may also access a Utility Page that inc
67. ion from damage due to ESD Electro Static Discharge The use of shielded cable is strongly recommended for installations in harsh industrial environments and or in the presence of strong electrical fields ue sorl Acromag 967 8EN Ethernet Module O The ethernet port of this ETHERNET module is wired MDI X but supports automatic crossover vii ia Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com 6 BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input CONNECTIONS Network USE OF AN ETHERNET SWITCH TO NETWORK You can use an Ethernet switch or switching hub to build a network of Ethernet modules similar to that shown below This drawing shows how to network connect these modules to a 5 port Ethernet switch Acromag Model 900EN S005 Note that the 900EN S005 switch includes automatic MDI MDI X crossover and straight through or crossover cable s may be used but it is generally not good practice to use crossover cables when connecting to an auto crossing switch Acromag S00EN S005
68. is process for each channel of this unit Modbus TCP IP Analog Input 1 Q WEB BROWSER Input Configuration NOTE If you are rescaling the input signal to a sub range of the input you will have to interpolate the scaled endpoints to align with the fixed input zero and full scale endpoints indicated NOTE The Totalizer Option is NOT available on commercial models IMPORTANT Your effective resolution will decrease proportionally as you reduce the nominal signal span through rescaling Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com 20 BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input WEB BROWSER Input Configuration Reset Totalizer Click this button to reset the current channel s totalized value to the Preload Totalizer value Totalization Calculation Example During totalization on this model an instantaneous input sample is gathered every 8ms if no input averaging is being done see table of page 40 If the instantaneous scaled input value indicates 500 units are gallons and time base is set to per Minute Then 500 gallons minute 1 minute 60 seconds equals a flow rate of 8 33 gallons per second Since a new sample is obtained every 8ms multiply 8 33gallons second by 0 008seconds sample to get an incremental increase in volume of 0 0667gallons sample and this amount is added to the totalized value The maximum possible totalized value is 9 9
69. l by totalizing its time sliced instantaneous value In order for the totalized value to accurately accumulate you need to specify the time base units of the input signal to perform the integration over Select per Second per Minute per Hour or NA You must specify a time base other than NA for totalization to occur Note that if NA is selected and Totalize Yes then 0 0 is added to the totalized value Likewise disabling the totalizer on all channels can be used to raise the throughput from 125Hz to a rate between 200 and 1298Hz see Table Totalize amp Preload Totalizer Choose Yes for the Totalize to totalize the input this will also automatically enable floating point support You can optionally choose to preload a totalized value on power up or upon system reset by inserting a number in the Preload Totalizer field In this way you can choose that your post power reset preload value be taken from the Preload Totalizer field or from the last totalizer value before power up or system reset During operation your incremental time sliced measurement will be added to this total every 8ms Note that in order totalize an input you MUST also Enable Floating Point Support by selecting Yes to that query At the End Count of 9999999 Rollover or Latch When your totalized value reaches the limit of its field you can click to select Roll Over and continue totalizing from zero or restart from
70. ld not continue to blink but remain ON If it continues to blink then the firmware may be in error Unit in wink mode Read Status register to verify wink status Write 5555H to Wink Toggle Register to toggle wink mode off on Unit failed to boot firmware A continuously flashing green Run LED can signify the unit has failed to initialize and may require repair if you are sure you have a good network connection and proper power voltage Cannot Communicate Power ON to the unit Check if green RUN LED is ON Fiber Connections not crossed over The auto crossing feature does not apply to the fiber port These connections must physically cross transmit to receive and visa versa Cannot Communicate Wrong IP Address Change IP address of unit or host PC so they match domains Try the default unit address of 128 1 1 100 Many Communication Errors Is cable segment longer than 100M Distance between two Ethernet nodes is limited to 100 meters with approved cable Correct Cable Shielded CAT 5 5E cable or equivalent is recommended Missing earth ground connection Connect earth ground to TB3 GND terminal adjacent to power terminal Cannot Browse Unit Your browser may be setup to use a proxy server for LAN communications Temporarily disable the use of a proxy server by your browser see procedure of next page Modbus TCP IP Analog Input 3 1 TROUB
71. ludes a couple of built in utilities that allows you to verify input operation without actually wiring to the inputs WEB BROWSER self test control and allow you to export your configuration to an identical unit export configuration control You can select the Utility Page button from the Test Page screen to display a screen similar to that shown here Utility Page BHE When you first enter a page GO E htpi28 1 1 100 protect utiity stm v x Jek that includes controls like this File Edit View Favorites Tools Help you may note that your first Google G yaos O E i Bookmarke E 1 blocked check 4 Autolink O Settings click on a control is ignored we de Sutiy Page gt Do o eae G Toos This is because the first click a only activates the control 968EN 4008 Utility Page Self Test Control Start Self Test For help click here Export Configuration Control w Use the scroll bar on the right to continue scrolling down the page as shown below gt Utility Page Windows Internet Explorer yo DES 6 E http 128 1 1 100 protectfutiity stm x x c BEE File Edit View Favorites Tools Help Google G ya o O E i Bookmarks E 1 blocked Yr check Autolink gt O Settings w k Utility Page 2 0 fm i Rage iQ Tools z a Export Configuration Control IP Address To Export Configuration To Export Status Export Configuration Network Con
72. lue sent if a new SPAN value has not occurred CASE 3 An i20 message is sent whenever the input value changes by more than 25 of the input span Additionally an i20 message containing the current input value will be sent every 25 seconds and the new reference value becomes the current input value CASE 4 No i20 messages will be sent CASE 5 No i20 messages will be sent After completing the username amp password assignment plus the network configuration parameters use the Input Configuration page to set your input ranges rescale inputs setup integration totalization setup floating point required for scaling integration totalization reset the totalizer and reset the unit 968EN 4008 Input Configuration Page Chanel OChamel OChanne2 OChame3 OChamel4 OChannel Channel Chame 7 Cick on couste menber you wish to configure Current configuration values wil be loaded mutcenatically and any desired changes can thea be made Click on the Channel Coxfiguration Suten button when finished with each channel Channel 0 Rage OSV t0SV 10V to 10V V Input Fullscale v Sealed Zero 100000 0001 Sealed Fuilscale 0 aks OMYGC Sper Second Oper Mimte Oper How ONA Tote QNo Yes Preload Totalize 9 At power up start totaizer from Preoad O Last Valve Reset Toine The configurations below are global and do not need to be dove for each channel Input Averaging Use the scroll bars on the right to scroll do
73. measure the response If the resultant measurement is within an acceptable level of error with respect to rated accuracy then the Port status will indicate Passed Note that this effectively tests the signal path of each channel as it tests the circuit operation beginning from the output side of the input port s 8 1 input multiplexer Thus the Self Test does not test operation of the port input multiplexer or the integrity of the input filters as the reference signal is switched to the input buffers of the four A D channels after the input multiplexer Export Configuration Control Enter the IP address of the destination unit you are trying to replicate this configuration at This unit must be already connected to the network Refer to Network Connections for examples of how to network connect units The export function is a real time saver when commissioning multiple units in similar fashion Simply enter the IP address of the unit you wish to send your I O configuration to it is assumed that you have already communicated with it and setup its network parameters Click the Export Configuration button to transmit your I O configuration With reference to the Modbus Memory Map for this device this function sends the contents of all Holding Registers 4xxxx registers right up to the wink register to the IP address indicated It does not send network configuration parameters which must be preset via the web browser Likewise it do
74. mple if you want to read Input Register 1 through the Holding Registers you would use the Read Holding Registers function with an address of 43001 For the 1xxxx Input Status Registers the return data is reformatted to match the Holding Register format For example if you request the Input Status for 16 digital inputs instead of getting 2 bytes returned with the 16 bits representing the 16 digital inputs you will get 16 separate words each set to either 0000H OFF or FFFFH ON For the Oxxxx Coil Registers reads are handled in the same way as the 1xxxx Input Status Registers You can also write to the coil registers by using the Preset Single Register function with an address offset of 42000 Setting the data to OOOOH will turn the coil OFF while setting the data to FFOOH will turn the coil ON Writing to multiple coils is not supported via register mirroring you must use the Write Multiple Coils function for that Data Types I O values for 967 8EN units are represented by the following simple data types for temperature percentage and discrete on off Summary Of Data Types Used By 9xxEN Models Data Types Discrete A discrete value is generally indicated by a single bit of a 16 bit word The bit number position typically corresponds to the discrete channel number for this model Unless otherwise defined for outputs a 1 bit means the corresponding output is closed or ON a 0 bit means the output is open or OFF
75. n 1 5259uA bit 1 5259uA bit 1 5259uA bit PPM 38 15ppm 76 30ppm 95 36ppm Normalized 20000 0 20000 0 20000 14 6 bits 14 6 bits 14 3 bits Input uses a 2000 shunt and the 10V 16 bit A D Range Input ranges are normalized to 20000 for 100 and 0 20000 for 0 100 Limits to Re Scaling Nominal Ranges To achieve a minimum acceptable resolution of 12 bits 2048 parts rescaling should not divide the nominal A D base range of 10V by more than 16 0 0625x 967EN input voltage equals input current x2000 and the 10V A D range is used A peak reading occurs at a normalized count of 22500 112 5 with full scale corresponding to 20000 counts 100 RANGE 10V 968EN 5V 968EN 967EN uses 10V monas as ARI 0 625V 0 625V 3 125mA Input Reference Test Conditions 20mA 967EN or 10V 968EN input ambient temperature 25 C 24VDC supply Input Over Voltage Protection Bipolar Transient Voltage Suppressors TVS clamp level less than 50V and greater than 18V Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input 4 Input Impedance 4MQ minimum 968EN 2000 967EN SPECIFICATIONS Voltage Input Reference Test Conditions 10V DC input ambient temperature 25 C 24VDC supply Input Over voltage Protection Bipolar Transient Voltage Suppressers Analog Inputs TVS clamp level less than 50V
76. n this button Reset Calibration Button Click this button if you make a mistake in the calibration sequence and wish to start over from step 1 Restore All Default Calibration Values Button Click this if you believe channel calibration has been done in error or you are getting erratic results after recalibrating This will affect all input channels at one time and the values restored are the ideal values not the results of an actual calibration You might choose this option if your calibration was done in error or produced unexpected results Restore All Default Scaling Values Button Click this button if your own scaling produced unexpected results and you wish to return the input scaling values of the selected channel to their default values typically the input range signal endpoints Note that this will affect all input scaling values and will restores them to their ideal values Calibration Configuration By default zero and full scale are calibrated automatically and this will be sufficient for most applications You may optionally calibrate each channel separately to obtain the highest possible accuracy Or to save time you can calibrate one channel from the port i e one A D channel and select an option to allow that channel s calibration to calibrate the response for all 8 channels of the port A D channel Use this channel s calibration for all channels of the port Yes or No If you select Yes then the manual calibr
77. n you are also not rescaling or integrating and totalizing the input This can help to make critical control network applications more deterministic particularly over networks with heavy traffic flow Consider that input data is normally acquired every 5ms or every 8ms if totalization enabled on any all channels or every 13ms if input averaging is greater than 1 Twenty percent of this time is used to convert the data for all 8 channels leaving only 80 to process all the other tasks required to store this data into Modbus registers run the web server and serve this data over the network You can increase the time devoted to servicing these other tasks by disabling floating point effectively increasing network determinism So leave it off if you don t need to rescale or totalize Note that even with floating point disabled the measured input value will still indicate a floating point number but the scaling and totalizing field will indicate Inactive Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual Floating Point Configuration continued Floating Point Control Byte Order Different Modbus systems will use different byte orders for the two 16 bit Modbus registers used to store a 32 bit floating point value Select the byte order compatible with your system Note that BO refers to the Least Significant Byte and B3 to the Most Significant Byte
78. nabled using timed updates only Input Averaging was disabled 2 Test Unit 968EN 4008 was directly connected to the Ethernet port of a 973EN 4006 Only one i20 Chanel was used for the test only using percent of span Input Averaging was disabled Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com 48 BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input SPECIFICATIONS Analog Inputs Memory Input Integration Totalization Industrial Units Only If totalization is enabled the instantaneous input is sampled at a slower rate of every 8ms and you can integrate this signal by totalizing its time sliced instantaneous value To totalize you must separately enable Floating Point Support and you also need to scale the input appropriately and specify the time base perform the integration over per Second per Minute per Hour or NA You must specify a time base other than NA for totalization to occur Note that if NA is selected and Totalize Yes then 0 0 is added to the totalized value The totalized value is non volatile and you can preload a totalized value on power up or system reset By default it totalizes from the last totalizer value before interrupting power or performing a system reset During run time your incremental time sliced measurement value will be added to this total every 8ms The software also gives the capability to reset the curre
79. nal circuitry The 16 bit A D converter of this unit has a base range of 10V There is one port of eight differential channels that are separately multiplexed to this A D channel 967EN current models utilize the same 10V A D range but employ 2000 input shunt resistors to drive 4 0V to the A D for 20mA input Once you have selected an input channel to calibrate and then a calibration configuration you simply follow the instructions printed on the Calibrate Channel bar as you click the bar making sure that you apply the zero and full scale calibration point signals indicated at the appropriate times Manual Input Calibration Voltage or Current Inputs These web controls allow you to perform manual calibration on an input channel Manual calibration is accomplished on a per channel basis or optionally on a per port basis by calibrating one channel from each port i e each A D channel To begin at the top of the Input Calibration Page first select the channel to be calibrated Next select the Calibration Configuration for the channel before continuing Modbus TCP IP Analog Input 23 WEB BROWSER Calibration Page For reference one LSB of input signal is equivalent to the input full scale voltage range divided by 65536 Full Scale Zero 65536 In general an uncalibrated A D input can produce a zero offset error up to 28LSB and a full scale error up to 0 4 Each port will match their zeros to within 10LSB of
80. nnot be set via Modbus registers You may have to consult your network administrator to complete the contents of this page Network Configuration Page Windows Internet Explorer 0 Sey g B 1 100 protect configur stm v Pl Bile Edt Yiew Favorites Toos Help Google Gv G0 OD Ere i Bookmarks E1 blocked Ep check y Autolink sb Send tow J settings GE Network Configuration Page A dh i page Gp Tools a 968EN 4008 Network Configuration Page Static IP Address 12 100 Number of Modbus Sockets 5 Subnet Mask Modbus Port Number Gateway 128 1 1 1 Active IP Address 128 1 1 100 MAC Address 52 4F 42 45 52 54 O Use Static IP Addressing OUse DHCP Use DHCP W Fallbacks Wink On Off Test Page Input Configuration Page Password Configuration Page Utility Page Calibration Page i20 Configuration Page Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com hittp www acromag com BusWorks 967 8EN User s Manual A Static IP Address is as the name implies siatic and represents a unique fixed IP Address that is generally assigned by your service provider or system administrator The Default Mode static IP address assigned to this module is 128 1 1 100 refer to product side label An IP Address is a unique identification number for any host this module on any TCP IP network including the internet The IP address is
81. nput 25 WEB BROWSER Calibration Page Reference Measurement This procedure is not normally required and has already been done at the factory The reference voltage is measured between the pins of a header along the front edge of the circuit near the LED s do not disassemble mated boards You will have to remove the unit from its enclosure to measure this voltage This should only be performed at a static safe workstation by qualified personnel or damage to the unit may result Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com 26 BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input WEB BROWSER Calibration Page Note The internal 5V reference voltage can be measured via a two pin header along the front edge of the top circuit board near the LED s This calibration has already been done at the factory in an ambient temperature near 25 C and should not need to be repeated Submit Reference Value Button Click this button after you have entered a measured reference voltage in the Voltage Reference field to store your measured value in non volatile memory Restore Factor Voltage Reference Value Button If you make a mistake and have entered the wrong value for the calibration reference you can click this button to restore the original value measured from the factory You would also click this button if you performed a system restore of the unit see Troubleshooting
82. nt totalized value to zero For example during totalization we gather an instantaneous input sample every 8ms If your instantaneous scaled input value indicates 500 and units are gallons and the time base is set to per Minute Then 500 gallons minute 1 minute 60 seconds equals a flow rate of 8 33 gallons per second Since a new sample is obtained every 8ms multiply 8 33gallons second by 0 008seconds sample to get an incremental increase of volume of 0 0666 gallons sample and this amount is added to your totalized value Note that with floating point disabled the measured input value will still indicate a floating point number but the scaling and totalizing fields will indicate Inactive This unit contains both volatile and non volatile memory It does not contain any fixed or removable disk or tape drives or memory cards For security or sanitization considerations review the following Flash Memory Non Volatile 512 Kilobyte flash memory is used for storage register data communication configuration parameters and web page information and is user modified via reconfiguration It is sanitized via the Restore procedure by holding the default switch while powering up the unit until the green Run LED turns OFF At this time the memory reverts to the factory default settings except for the MAC ID and serial number which are fixed Refer to Getting Out of Trouble section in this manual for more information FRAM
83. o operate tbs vi R Inactive Inactive f Inactive Network Configuration Page Password Configuration Page Input Configuration Page Calibration Page Utility Page LL i20 Configuration Page Voltage or Current Inputs Note that the 8 input channels of these modules are grouped into one port If the channel is not configured for floating point which is necessary to accomplish scaling and totalizing then Inactive will be indicated for the scaled input value scaled units and Totalized value Polling Rate The input values update continuously at the Polling Rate set via this slide control Click and drag this control to set the rate at which you wish to read the inputs via this web page The rate is indicated just to the right of this control Disable input polling by dragging it to the far right Modbus TCP IP Analog Input 2 1 WEB BROWSER Input Configuration Test Page When you first enter a page that includes controls like the polling rate slide of this page you may note that your first click on the control is ignored This is because the first click activates the control TIP If you notice that the Input Test Page has stopped scanning I O or appears to have halted simply click the refresh button to restart the polling This may happen if the unit is interrupted for a period of time and it causes the Java applet to time out and stop
84. odbus TCP IP Analog Input 1 1 WEB BROWSER Network Configuration This module can be placed into a default communication mode via the DFT push button at the front of the module To activate hold the DFT button for 5 seconds The Status LED will start a slow blinking to indicate default mode Default Mode uses a static IP address of 128 1 1 100 a default subnet mask of 255 255 255 0 a default username User and a default password passwordoo Note that Acromag Series 9xxEN Ethernet I O modules may take up to 15 seconds to boot upon power up depending on your network configuration and whether a DHCP server is present Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com 1 2 BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input WEB BROWSER Network Configuration The Modbus Port Number is set to port 502 by default which has been reserved for Modbus applications Port numbers represents an endpoint or channel for network communications In this way every IP address is divided into many ports and when one computer sends data to another computer it sends the data from a port of an IP address to a port on another IP address Any one port can only be used by one program at atime The use of port numbers allows different applications on the same computer to utilize network resources without interfering with one another The port number could ran
85. omag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual 4 22 2222 AAAA ry gt J Acromag U IK aS a aei RUN ST Ee B36 35 34 33 32 31 e a gasses AEE oo 8 o INPUTS PWA LINK ACT 67 ee MODEL 967EN 4008 t D 0 C oe MODEL 967EN 4C08 MODEL 968EN 4008 MODEL 968EN 4C08 ETHERNE az a8 H g skelk elkse s T1 TB2 a 1 05 _ T RAL DIN MOUNTING le 3 90 26 7 DIN EN 50022 35mm 99 1 4 35 NOTE Dimensions Are INCHES MILLIMETERS MODEL 967 8EN ENCLOSURE DIMENS J ETHERNET The front panel DFT push button is used to toggle the module into or out of Default Mode In Default Communication Mode the module assumes a fixed static IP address of 128 1 1 100 a default subnet mask of 255 255 255 0 a default username of User and a default password of password To activate depress the DFT button for 5 seconds until the ST LED blinks on off slowly To disable depress the DFT button for 5 seconds or until the s blinking ST LED stop PUSH BU
86. omplish Note that internally 967EN models utilize a 10V 16 bit A D range On the 967EN your calibration endpoints will remain 20mA even if you have selected a different input range Submit Calibration Configuration Button Select your mode of calibration and click this button to write your selection to the unit Then you can calibrate the channel as required repeating it for each of the channels Voltage Reference Calibration The on board calibration reference used for automatic calibration can be separately calibrated by accurately measuring its value and entering it in the field provided in the Voltage Reference Calibration section of this page This has already been done at the factory and recalibration of this reference should not normally be required You should not change the value indicated in this field unless authorized to do so or performance may be negatively affected Voltage Reference Field 4 996 to 5 004 The internal calibration reference is precisely measured at the factory and its voltage value stored in the unit and indicated in this field This reference voltage is 5V 0 05 5ppm C and should read between 4 996 and 5 004 5V 0 08 This value is used to make a correspondence between the A D response digital count and the voltage signal itself in order to calibrate its linear response You can enter your own measured value in this field if you need to recalibrate it not recommended Modbus TCP IP Analog I
87. or shock Reset the unit by cycling power Unit Fails to Start up or Initialize Input power voltage below 18V Check your power supply voltage and make sure that it is at least 18V and of sufficient capacity select a current capacity at least 2x the maximum current draw of the unit Adding another unit to network slows web page interaction considerably Does each unit have a unique MAC address All units are normally shipped with a unique MAC address assigned from the factory An error in shipment could release a unit with a default MAC address 52 4F 42 45 52 54 Go to the Network Configuration Page and verify that each unit has a unique MAC address installed should always be true If you have 2 units with same MAC address this will slow down communications considerably and you must contact the factory for MAC reassignment Inputs Appear Noisy or Unstable Have you grounded your inputs Note that un grounded inputs and the Port Common terminal both require an earth ground connection Connect the Port Common C terminal to earth ground If input source is not already grounded then try connecting the IN lead to the port C terminal which separately must also be connected to earth ground Have you tried Input Averaging You can use controls on the input configuration page to set the number of samples to average inputs over Try increasing this number above 1 to minimize noise up to 500
88. r some master client devices linked to the same network To avoid problems other master devices on the network should be restricted from attempting to control i20 target devices You can also make use of the Number of Sockets parameter to limit access to an i20 target device Note that i20 inputs map externally to outputs on compatible target devices Individual inputs may even be mapped to separate outputs on different units at different IP addresses Subsequent messages will be sent at a periodic rate specified via the update time Note that the target output channel may still be controlled independently but its level will be overwritten by subsequent mapped i20 messages when this feature is enabled To avoid problems it is recommended that you do not attempt to separately control the mapped analog output ports directly Span Change Set the count input range span change since the last input update that when equaled or exceeded at any port channel will trigger the input data of the port to be sent to the specified output port s For example if you set this field to 10 of a 10V input range then a change in signal of 2V or greater will trigger the i20 transfer Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input 1 5 Update Time x100ms Specify the time between messages as a multiple WEB BROWSER of 100ms from 1 to 900
89. re The drain wire or wire screen typically makes contact at each end of the cable with the metal shield around special RJ45 plug connectors The metal shield of these connectors then makes contact with the metal shield of shielded RJ45 sockets The socket shield may make direct contact with earth ground or it may be capacitively coupled to earth ground In the Acromag 9xxEN modules this shield contacts earth ground via a high voltage capacitor and transient voltage suppressor In addition to minimizing radio frequency and electromagnetic interference this arrangement also has the added benefit of enhanced protection from ESD Electro Static Discharge Further Acromag recommends the use of enhanced Category 5 cable CAT 5e This cable has all the characteristics of Category 5 but includes enhancements that help to minimize crosstalk It is rated for frequencies up to 200MHz double the rate of Category 5 Category 5e cable also has a greater number of turns per inch in its twisted pairs making its performance more suitable for applications that make use of all four wire pairs for simultaneous bidirectional data transmission full duplex This cable is defined in TIA EIA 568A 5 Addendum 5 Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input 53 Acromag offers the following cable accessories for use with this module ACCESSORY Cable
90. rigger for Channels 7 0 Register always reads back as 0000H 40111 006E Reserved Calibration Trigger Registers 40112 40113 Reserved Do Not Use Bits 15 8 Not used Bits 7 0 1 Reset Totalizer O No Action Bit position corresponds to input channel to reset totalizer at Isb is lowest numbered channel Reserved Do Not Use 40112 006F Zero Cal Trigger for Channels 7 0 Bit position corresponds to channel number Write a set bit to this register to trigger the A D to sample the corresponding input s and store the zero signal Isb is lowest numbered channel of group First write 24106 to Calibration Access Register 40037 to remove write protection from the calibration value registers before triggering Model 967EN 4x08 Model 968EN 4x08 Shaded registers from 40025 to 40056 are write restricted and reserved for internal firmware and factory use these registers are modified indirectly by the calibration registers 40112 40113 Do not attempt to directly modify the contents of these registers Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com 44 BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input Register Map Ref Addr Description Data Type Format Holding Registers 4x References Read Write Model 967EN 4x08 Calibration Trigger Registers 40112 40113 40113 0070 Span Cal Trigger Bit position
91. ription Data Type Format Input Registers 3x References Read Only 30001 0000 Unit Status Use this register to check status of wink mode default mode or watchdog timeout CH 00 Status Over Under range Input Range Data Format 16 bit Unsigned Integer Bit 15 NV Memory Fault 1 Non Volatile Memory failed initialization Bit 14 Wink Mode Flag 1 Wink Blinks Run LED for ID See Wink Unit Register Bit 13 Default Mode Flag 1 Default Mode Indication Bits 12 0 0 Not Used Bit 15 4 0 Not Used Bit 3 Over Range Flag Bit 2 Under Range Flag b1 bO 967EN 00 20mA 01 0 20mA 10 VDC 10 4 20mA Not Used 11 Not Used _ Not Used 968EN 5V DC CH 01 Status See CHO explanation apply to CH 1 CH 02 Status See CHO explanation apply to CH 2 CH 03 Status See CHO explanation apply to CH 3 CH 04 Status See CHO explanation apply to CH 4 CH 05 Status See CHO explanation apply to CH 5 CH 06 Status See CHO explanation apply to CH 6 CH 07 Status Reserved See CHO explanation apply to CH 7 Reserved Do Not Use Normalized Channel Data Registers Reserved Reserved Do Not Use The 16 bit Signed Integer Data 30018 0011 CH 00 Data 16 bit Signed Integer Data stored here refers to the input 30019 0012 CH 01 Data 16 bit Signed Integer Data range A D count but after 30020 0013 CH 02 Data 1
92. rrent input at the lead A precision 2000 shunt resistor converts 20mA to 4 0V at the A D The A D has a native 10V input range configured 16 bits Thus the effective resolution of 20mA is 14 6 bits 13107 parts The 20mA input is normalized to a count of 20000 for 100 over range is 2000 counts Input Range The current unit utilizes the 10V A D input range and is designed for a bipolar current of 20mA All input ranges are sub ranges of the native 16 bit A D range of 10V 20mA into 2000 is 4 0V for 14 6 bits of resolution or 1 part in 13107 Input Zero Fixed per Range Default is same as input range zero 20mA OmA or 4mA and this cannot be changed The indicated value will correspond to 0 of signal and a normalized count of 20000 for 20mA range or 0 for the 0 20mA and 4 20mA ranges Modbus TCP IP Analog Input 1 7 WEB BROWSER Input Configuration For the 968EN you can select an input range of 5V or 10V Each of these ranges can be rescaled to your own engineering units For the 967EN all current input ranges are sub ranges of the native 10V A D input range and utilize a precision 2000 input shunt to convert input current to A D voltage 20mA into 2000 yields 4 0V to the A D Once you have carefully made your selections click the Submit button to activate your reconfiguration reconfiguration takes effect immediately following clicking Submit For the 967EN all curren
93. rs to monitor configure and control unit I O Read Coil Output Status Read Input Status 1XXxx Read Holding Registers AXXXX Read Input Registers 3XXXX MODBUS Force Single Coil Output OXXxx Preset Single Register 4XXXX REGISTERS Force Multiple Coils Outputs OXXxx Preset Multiple Registers 4XXXX Register Functions Report Slave ID See Below Hidden If an unsupported function code is sent to a unit exception code 01 Illegal Function will be returned in the response If a holding register is written with an invalid value exception code 03 Illegal Data Value will be returned in the response message You may refer to the Modbus specification for a complete list of possible error codes 967 8EN 4016 Report Slave ID Example Response Unit ID Echo Unit ID Sent In Query Function Code 11 Byte Count 43 Slave ID Model No 13 967EN 4008 Run Indicator Status FFH ON Firmware Number 41 43 52 4F 4D 41 47 2C 39 33 30 30 2D 31 String Additional 36 31 41 2C 39 36 37 45 4E 2D 34 30 30 38 Data Field ACROMAG 9300 161A 967EN 4008 serial number amp rev six byteMACID Note Model 967EN 4008 uses slave ID 13 and firmware number 9300 161 Model 967EN 4C08 uses slave ID 14 and firmware number 9300 162 Model 968EN 4008 uses slave ID 15 and firmware number 9300 163 Model 968EN 4C08 uses slave ID 16 and firmware number 9300 164 The firmware model numbers are also indicated on the home page of th
94. s a 16 bit A D with an input range of 10V NOTE YOU MAY INPUT CURRENT ON EITHER LEAD WITH BIPOLAR DIFFERENTIAL INPUT SHIELDED CABLE 967EN SIMPLIFIED INTERNAL CONNECTIONS ONE CHANNEL MUX gt To A D aE G10 Q gt MUX 2 WIRE XMTR 00 967EN SIMPLIFIED INTERNAL CONNECTIONS ONE CHANNEL 967EN NOTE GROUNDING gt 200 TOAD IF CURRENT LOOP IS NOT ALREADY 10V GROUNDED THEN IT IS RECOMMENDED amp gt THAT YOU CONNECT INPUT TO EARTH MUX GROUND AS SHOWN Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com 8 BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input CONNECTIONS l i l i DCS PLC Analog Inputs OR OTHER L f CONTROL NOTE YOU MAY INPUT CURRENT ON ETHER LEAD WTH BIPOLAR DIFFERENTIAL INPUT IT IS RECOMMENDED THAT YOUR CURRENT LOOP BE EARTH GROUNDED AT SOME PONT FOR BEST RESULTS DONOT ALLOW DIFFERENTIAL INPUTS TO FLOAT MUX 967EN SIMPLIFIED CONNECT ANALOG COVIMON INTERNAL CONNECTIONS C TERMINAL TO EARTH GROUND ONE CHANNEL Voltage Inputs 968EN Models Only You can set the channel to accept fixed voltage input ranges of 10V or 5V You may also rescale a portion of 10V A D range to smaller sub ranges down to a minimum span 1 1 6 of the native span in order to maintain minim
95. s are accessed via the 16 bit Input Registers or 16 bit Holding Registers given in the Register Map Input registers contain information that is read only For example the current input value read from a channel or the states of a group of digital inputs Holding registers contain read write information that may be configuration data or output data For example the high limit value of an alarm function operating at an input or an output value for an output channel Each 967 8EN unit has a default factory configuration as noted in the Specifications section Your application will likely differ from the default configuration provided and the unit will need to be reconfigured You may reconfigure most features of this unit by issuing the appropriate Modbus functions to Register Map registers as required by your application You may also use a standard web browser to access the built in web pages of the unit to perform basic I O amp reconfiguration Below is a subset of standard Modbus functions that are supported by this unit along with the reference register address group that the function operates on Use these functions to access these registers as outlined in the Register Map for sending and retrieving data Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input 3 1 The following standard Modbus functions operate on register map registe
96. ster 967EN 968EN Default Register Settings Settings REGISTER ACTION Channel Configuration Registers Use Auto Zero Span Cal Here is a summary of the Do not use CH Cal for Port 967EN 968EN default register Totalizer to use Preload settings and corresponding Totalizer is OFF default behavior Totalizer Action is Rollover Totalizer Time Base is NA Input is 20mA or 10V Digital Filter Input Averaging 0 No Input Averaging Floating Point Enable amp Byte Order Disable b3 b2 b1 b0 Order Wink Register OFF Do Not Wink Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual Not all parameters of this device can be set via Modbus registers In general parameters related to I O will have a Modbus register while those related to network communication must be set via the web interface Here is a list of configuration parameters which do not have a Modbus register Username amp Password Static IP Address Number of Modbus Sockets Subnet Mask Gateway Address Host Name Select Static DHCP or DHCP w Fallback Addressing Wink On Off Self Test Utility Export Configuration amp Export IP Address i20 Function A DIN rail mount industrial Ethernet I O system providing 8 fully differential input channels for current 967EN or voltage 968EN Units have an isolated 10 100M Ethernet interface for monitoring calibration and control
97. t input ranges are sub ranges of the native 10V A D input range and utilize a precision 2000 input shunt to convert input current to A D voltage 420mA into 2000 yields 4 0V to A D Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com hittp www acromag com 1 8 BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input WEB BROWSER Input Configuration 967EN Current Input Models continued Scaled Zero Default is the same as input zero 20mA OmA or 4mA but you can rescale this value as required for your application Field is limited to a 32 bit number of up to 12 characters and a maximum of 4 decimal places For each channel 0 7 enter your rescaled full scale that is to correspond to 0 of input signal You must also Enable Floating Point Support to accomplish rescaling If you are using only a portion of this range you may have to interpolate your scaled zero endpoint Input Full Scale Fixed per Range Default is the same full scale as input range 20mA and this cannot be changed The full scale indicated will correspond to 100 of input signal and a normalized count of 20000 Scaled Full Scale Default is the same as input full scale 20mA but you can rescale this value as required for your application Field is limited to a 32 bit number with up to 12 characters and a maximum of 4 decimal places For each channel 0 7 enter your rescaled full scale that is to correspond to 100 of input signal
98. t Used 0 Not Used 0 Not Used Totalizer Initial Value 0 Use Preload Value 1 Use Last Value Totalizer End Count 0 Rollover 1 Latch Totalizer OFF ON 0 OFF 1 ON Bit 5 0 Not Used Bits 4 3 Totalizer Time Base 00 Per Second Commercial Default Not Used 01 Per Minute 10 Per Hour 11 No Action Industrial Default 0 Not Used Input Range Selection 967EN 968EN 00 0 20mA 0 5V 01 1 0 20mMA 1 10V 10 2 4 20mA Reserved 11 Reserved Reserved Bit 2 Bits 1 0 CHO01 Config See explanation for channel 00 above CHO02 Config See explanation for channel 00 above CHO03 Config See explanation for channel 00 above CH04 Config See explanation for channel 00 above CHO05 Config See explanation for channel 00 above CHO6 Config See explanation for channel 00 above CHO07 Config Reserved See explanation for channel 00 above Reserved Do Not Use Reserved Reserved Do Not Use Note Totalizer option is not available on commercial models Modbus TCP IP Analog Input 4 1 Register Map Model 967EN 4x08 Model 968EN 4x08 Totalized inputs are sampled every 8ms or 13ms with Input Averaging Your input signal per time base is thus multiplied by 8ms per sample to get your incremental increase or decrease of volume that is added to your totalized value The maximum totalized value possible is 9 999 999 9999 Note Totalizer Options
99. t twice this amount Supply 967EN 4008 968EN 4008 Current Draw 82mA Typical 99mA Maximum 63mA Typical 76mA Maximum 45mA Typical 54mA Maximum CAUTION Risk of Electric Shock More than one disconnect switch may be required to de energize equipment before servicing SPECIFICATIONS Enclosure amp Physical Agency Approvals Environmental CAUTION Do not exceed 36VDC peak to avoid damage to the module External Fuse Select a high surge tolerant fuse rated for 250mMA or less to protect unit Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com DO BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input SPECIFICATIONS Environmental These limits represent the minimum requirements of the standard but product has typically been tested to comply with higher standards in some cases Reliability Prediction Isolation Input channels as a group power and network circuits are isolated from each other for common mode voltages up to 250VAC or 354V DC off DC power ground on a continuous basis will withstand 1500VAC dielectric strength test for one minute without breakdown Complies with test requirements of ANSI ISA 82 01 1988 for voltage rating specified Note that input channels are not isolated channel to channel Installation Category Designed to operate in an installation in a Pollution Degree 2 environment with an installation category over voltage
100. tage Output Channels Registers 40019 40024 951EN Up to 2 Current Output Channels Registers 40101 40102 952EN Up to 2 Voltage Output Channels Registers 40101 40102 Note The 972 973EN comes in a 4 channel and 6 channel variety The analog input data may be transferred cyclically or upon exceeding a stated count input range span since the last update However if you select percent of span you will still need to specify a cyclic update rate in order to keep the communication socket open and prevent a timeout if your Span changes happen to occur at intervals greater than 90 seconds apart If you select a time of 0 with Span specified a default time value of 90 seconds will be used to ensure the connection remains open i20 uses TCP IP which is a connection oriented protocol You may want to make the update time longer to conserve network bandwidth while still preventing a timeout If you disable Span then your output control messages will occur at every interval of your update time for times greater than or equal to 0 5 seconds Setting the update time to 0 disables cyclic messaging Setting it to a time less than 0 5s may be less deterministic IMPORTANT This module is designed to function as a Modbus TCP IP slave server Normally Modbus servers are not allowed to initiate messages on their own and may only respond to client master requests The i20 functionality of this unit is a special application that may cause confusion fo
101. the 10V range endpoints 968EN are coincident interpolated The internal calibration reference was precisely measured at the factory and its voltage value is stored in the unit Steering circuitry prior to the port input buffers allows the A D channel to connect to this reference voltage and alternately to analog common for zero The unit utilizes the corresponding raw A D output count for both zero and the reference voltage to calibrate the input by defining the equation of a straight line used to predict the input signal for any given A D count Only the OV and 5V range points are actually auto calibrated while calibration of 5V and the 10V range endpoints are coincident interpolated Automatic calibration will be sufficient for most applications This method of calibrating the inputs is the most convenient and will achieve stated accuracy of 0 05 for voltage inputs and 0 1 for current inputs It is less accurate for current inputs because it does not compensate for the initial inaccuracy of the input current shunt resistor 2000 0 05 5ppm C Use Channel Calibration Bullet Clicking this bullet will select manual per channel calibration which associates the current calibration with only the current channel It is possible to achieve the greatest accuracy if you calibrate on a per channel basis and you have a precise input signal source and digital voltage meter with better than 0 05 accuracy but it takes more time to acc
102. the Preload Value whichever is selected Optionally you can latch the totalized value Note that if the added value exceeds the amount required to reach the limit of 9 999 999 0 the additional amount it is over will be added to the count it rolls over it assumes a free running counter and rolls over while ignoring the preload value Note Counter Operation This counter is limited to 7 digits of accuracy amp resolution starting with 4 places before and after the decimal point see below Then as the count grows beyond the least 7 digits the least significant digit is zeroed as the most significant digit is incremented For example note the transitions and digit shift left the counter starts at 0000 0000 and increments to 0999 9999 then 9999 9990 to 99999 9900 then 999999 9000 to 9 999 999 0000 then it rolls over or latches as specified At Power Up Start Totalizer From Preload or Last Value When you power up reset the unit or reset the totalizer you can direct the totalization to start from the Preload value in the Preload Totalizer field or simply the last totalized value Note A system reset always starts the totalizer from the preload value or the last value whichever is selected here However Reset Totalizer always restarts from the preload value even if Last Value is selected here Channel Configuration Submit Click this button to submit your channel configuration selections Select another channel and repeat th
103. this procedure to restore it to its initial configuration and regain control Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com hittp www acromag com 34 BusWorks 967 8EN User s Manual Modbus TCP IP Analog Input KEY FEATURES TECHNICAL REFERENCE Safety Agency Approvals CE all models UL amp cUL listed plus Class l Division 2 Groups A B C D approval 967EN 4008 and 968EN 4008 ONLY True Differential Wide Band Input path is fully differential right through to the A D converter for improved noise rejection Web Browser Reconfiguration allows a standard web browser to be used to configure control monitor and calibrate over Ethernet Fully Isolated input channels as a group network ports and power circuits for safety and increased noise immunity Wideband Inputs can be processed in as fast as 5ms 200Hz for all 8 channels 16 bit A D Converter for high accuracy and high resolution Built In Calibration Source facilitates precise automatic calibration and self test Integration and Totalization of Inputs is Possible via scaling registers and non volatile memory storage Industrial Models Only Optional User Scaling allows inputs to rescale to user defined sub ranges or other engineering units to facilitate integration totalization Selectable Modbus TCP IP or UDP IP Protocol Support for up to 5 sockets using Modbus TCP IP Flexible IP Addressing supports static or DHCP 10Base T and 100
104. to equal 100 of the output range The mapping method tells the firmware how to map the endpoints between the i2o input and the i2o target as follows i20 Input to Output Ideal Endpoint Effect Unipolar to Unipolar Direct Unipolar Mapping Maps 0 20000 0 100 at input to 0 20000 0 100 at output Bipolar to Bipolar Direct Bipolar Mapping Maps 20000 100 at input to 20000 100 at output Bipolar to Unipolar Maps 20000 100 to 0 0 to 10000 50 and 20000 100 to 20000 100 Unipolar to Bipolar Maps 0 0 to 20000 100 10000 50 to 0 and 20000 100 to 20000 100 Note that you can mismatch your selections relative to the I O in order to truncate portions of your I O range For example if have a bipolar input and a unipolar target and select Unipolar to Unipolar then the negative portion of my input 20000 to 0 100 to 0 will map to 0 while the positive portion of my input maps directly to my output 0 20000 0 100 Select Bipolar to map bipolar inputs to bipolar outputs or select Unipolar to map 20000 100 of the input to zero output 0 If Bipolar is selected for an output that is unipolar then the negative input range 100 to 0 will map to zero at the output truncated Likewise if select Unipolar to Bipolar for an input that is bipolar then your negative input range may achieve unexpected invalid output values Be sure to make th
105. to use a proxy server when browsing the web If you are using Internet Explorer refer to the Tools pull down menu select Internet options click the Connections tab then click the LAN Settings button Locate the Proxy server information and uncheck the box next to the statement Use a proxy server for your LAN Then click OK to return to the Connections screen and click OK again to save your settings You should now be able to use Internet Explorer to browse the unit as required However to later restore your PC s connection to your company network you may have to re enable the use of a proxy server for your LAN There is limited built in error checking to prevent you from writing invalid values to a configuration register If you inadvertently write an invalid value to an internal register operation may become unpredictable under certain conditions If resetting the unit fails to restore order then to regain control of the unit the unit can either be re downloaded at the factory or you can try restoring its initial configuration by following this procedure Procedure For Restoring any 967 8EN Unit to its Initial Configuration Also used if you wish to sanitize the unit and return it to original state IMPORTANT Before attempting Restore please follow the default mode activation procedure located on page 3 Then if you are still unable to communicate with your module you can utilize this proce
106. um 12 bit performance SHIELDED z CABLE 5 voutace f Y REN NETos Volts ONE CHANNEL 01 MUX CONNECT INPUT VOLTAGE AS SHOWN OBSERVE PROPER POLARITY INPUT RANGES ARE 4 10V 4 5V MUX OR USER SCALED Connect input voltage to input positive and negative while observing proper polarity If the input source is floating it is recommended that you connect the negative input to the analog common terminal of the port terminal C Additionally analog common C should also be connected to earth ground Analog Common Y Common connects to analog common of the differential input circuit and is provided in order to reference the input circuit to earth ground and to reference a differential input signal to analog common if it would otherwise be left floating Check your grounding scheme if inputs are clamped or appear unstable There are two C terminals on TB4 for this purpose You only need to connect earth ground to one of these to earth ground the input circuit as they are all connected in common DIFFERENTIAL INPUT GROUND REQUIREMENTS POMERGROUNDTERMINA OOOO GROUNDED SHIELDED CABLE MX l INPUT SOURCE l 06 re S e BUF UN GROUNDED SHIELDED CABLE Te N D INPUT SOURCE rR a N r AD au Sy Q CONNECT EARTH GROUND S Q z oe TOKE INEUTOROUT gt cron l UIT L cu FROM FLOATING
107. via Modbus TCP IP Unit is DC powered with reverse polarity protection Field inputs are wide band multi ranging and fully differential Sixteen bit A D conversion is used and input ranges may be rescaled to sub ranges or other engineering units to help facilitate integration totalization Input channels include transient protection Input channels as a group network ports and power circuits are isolated from each other and from earth ground Non volatile reprogrammable memory in the unit stores configuration calibration and totalization data The BusWorks model prefix 900 denotes the Series 900 network I O family The EN suffix denotes EtherNet The four digit suffix of this model number represents the following options respectively 4 Modbus 0 Industrial Model or C Commercial Model 08 8 Channels Differences between Industrial and Commercial Models Industrial Models Commercial Models Operating Temp 40 C to 70 C 0 C to 55 C Accuracy 0 05 Typ 967EN amp 968EN 0 1 967EN amp 968EN Approvals CE UL cUL CE only Totalizer Yes Not Available Eight differential input channels organized as one port of input current 967EN or input voltage 968EN The eight channel port is differentially 8 1 multiplexed to a 16 bit A D channel Model 967EN input channels use precision 2000 shunt resistors to convert input current to voltage such that 20mA will drive 4
108. wn the page Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual The configurations below are giobal aad do not nsed to be dose for each channel Input Averaging Number of samples to average 500 Floating Point Control Enable Floating Poit Support ONo Yes Byte Order B0 B1 B2 BS B3 B2 B1 BO BI BO B3 B2 B2 B3 B0 B1 These models have eight input channels of current 967EN or voltage 968EN The Input Configuration page of the 968EN voltage unit is shown above The 967EN is identical except that it refers to current ranges Input Configuration Repeated Per Channel You must repeat your reconfiguration for each channel of interest Configuration involves first selecting the input channel its input range and optionally rescaling the input s zero and full scale value to your own engineering units You can also setup an integrator by specifying the scaled input units and its time base in order to totalize the input You can enable disable totalization of an input set its preload and initial value and reset the totalizer After you have made your channel specific selections click the Channel Configuration Submit button to apply your selections 967EN Current Input Models Note On 967EN models a current input of 20mA 22mA maximum may be input at the positive or negative input lead but its sign is relative to cu
109. y using very accurate input signal and measurement equipment to achieve calibration This would additionally compensate for the small errors contributed by the input filters buffer amplifiers and input multiplexers as well as the initial inaccuracy of the input shunt resistor of current inputs Which method you choose refers to your Calibration Configuration selected via controls on this page While the relative accuracy of calibration can be improved via software calibration facilitated with the controls of this page or by instead issuing the appropriate Modbus register calibration commands the Automatic calibration will be sufficient for most applications This page additionally allows the internal 5V calibration reference that is used to accomplish automatic calibration to be calibrated An accurate voltage reference measurement is made between P1 header pins 1 and 2 The measured value representing the calibration voltage is recorded and stored inside FRAM memory that resides on the I O board of the unit The controls of this page allow a new value to be stored This has already been done at the factory and should not need to be repeated unless miscalibration is suspected In order to take this voltage measurement it requires that the board assembly be carefully removed from the enclosure and this requires handling at an ESD safe work station We do not recommend that you do this in the field as it invites potential damage to sensitive inter
110. y a portion of this range you may have to interpolate your scaled zero endpoint Input Full Scale Fixed per Range Default is the same as input range full scale 5V or 10V and this cannot be changed The voltage indicated corresponds to 100 of signal and a normalized count of 20000 Scaled Full Scale Default is the same as full scale 5V or 10V but you can rescale this value as required for your application Field is limited to a 32 bit number with up to 12 characters and a maximum of 4 decimal places You must also Enable Floating Point Support to accomplish rescaling If you are using only a portion of this range you may have to interpolate your scaled full scale Units For reference enter the units of measure for your rescaled zero and full scale Acromag Inc Tel 248 295 0880 Fax 248 624 9234 Email sales acromag com http www acromag com BusWorks 967 8EN User s Manual Integration Totalization Per Channel Industrial Grade Models Only You can optionally integrate an input signal by totalizing its time sliced instantaneous value with integration totalization enabled at any channel the instantaneous inputs of this unit are sampled at a fixed rate of 8ms for all 8 channels or 13ms with Input Averaging gt 1 Time Base per Second per Minute per Hour No Application With integration totalization enabled the instantaneous input is sampled at a slower rate of every 8ms You can optionally integrate this signa
111. zes calibration by using as much of the A D range as possible and it will drive 4 0V into the A D which has a native 16 bit input range of 10V This step is effectively not required to calibrate the 967EN unit Write 24106 5E2AH into the Calibration Access Register to remove write protection from the calibration registers For best results Zero is always calibrated before full scale You must apply the exact input zero signal to the input channel being calibrated to proceed Your signal source should be accurate to better than 0 05 auto calibration standard 967EN Units The zero input signal is always 20mA This is equivalent to delivering 20mA to the terminal and returning it at the terminal This produces an A D calibration voltage of 4 0V 968EN Units The zero input signal is a negative voltage of 9 95V or 5V according to input range configuration Note that if you do not have a precision negative voltage just flip the differential positive and negative terminal connections and use a positive reference voltage Write a 16 bit word into the correct Zero Cal Trigger Register with a set bit in the bit position that corresponds to the channel you wish to calibrate zero at You would write to the Zero Cal Trigger register to address channels 0 7 A set bit in these registers will trigger the unit to sample the corresponding channel capture its zero signal and store the count The unit will replace calibration coefficients immed

967EN/968EN User`s Manual

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