Appendix B - AutomationDirect
Contents
1. Creating amp Managing Communication Links Certain object classes represent and such as PLCs RTUs and controllers LookoutDirect uses the term driver to refer to these types of object classes The functionality built into driver objects enables them to communicate with the physical devices that they represent LookoutDirect communicates with the outside world primarily through driver objects The drivers are not separate applications They work as any other object in the LookoutDirect event driven environment except that they communicate with external devices With traditional systems a particular driver is assigned to a specific serial port In these configurations multiple drives cannot share a single serial port LookoutDirect does not associate baud rate data bits parity or stop bits with a particular serial port In this configuration drivers that implement different protocols and baud rates can use the same port and the same modem or radio frequency RF This capability allows you to mix and match PLCs RTUs and other devices over a single RF without communications conflicts or special hardware This is possible because of LookoutDirect s communication service Objects use the communications service to gain access to serial ports in an orderly and timely fashion Note Some LookoutDirect driver objects communicate with physical devices through dedicated hardware These driver objects do not use serial ports but instead2. GY3777 VGY0 B Numeric Yes Yes Single 16 Bit V memory word registers VGY3760 B BCD Aliases for mapped Remote I O Outputs GYO GY3777 VSO VS1760 Numeric Yes Yes Single 16 Bit V memory word registers decimal Aliases for mapped Stage status active bits SO S1777 VS0 B VS1760 B Numeric Yes Yes Single 16 Bit V memory word registers BCD Aliases for mapped Stage status active bits SO S1777 VSPO VSP760 Numeric Yes Yes Single 16 Bit V memory word registers decimal Aliases for mapped Special Relays system status bits SPO SP777 VSPO B VSP760 B Numeric Yes Yes Single 16 Bit V memory word registers BCD Aliases for mapped Special Relays system status bits SPO SP777 VTO VT360 Numeric Yes Yes Single 16 Bit V memory word registers decimal Aliases for mapped Timer Status done bits TO T377 VCTO B Numeric Yes Yes Single 16 Bit V memory word registers VCT360 B BCD Aliases for mapped Timer Status done bits TO T377 VX0 VX1760 Numeric Yes Yes Single 16 Bit V memory word registers decimal Aliases for mapped Inputs X0 X1777 Appendix B Table B 3 05 105 205 350 405 DirectLogic PLC Data Members VX0 B VX1760 B Numeric Yes Yes Single 16 Bit V memory word registers BCD Aliases for mapped Inputs X0 X1777 VYO VY1760 Numeric Yes Yes Single 16 Bit V memory word registers decimal Aliases for mapped Outputs YO Y1777 VY0 B VY176
3. Getting Started Guide A system for making sure that a computer can come online and run a LookoutDirect process if the computer currently running that process fails for some reason In the context of LookoutDirect remote is a position source location for a control See the Remote Position Source Connections section of Chapter 4 Using LookoutDirect for detailed information on the LookoutDirect remote position source The smallest signal increment that can be detected by a measurement system Also the number of pixels per inch on a computer monitor screen or dots per inch in printer output Request to Send part of a handshaking protocol for certain devices that connect the serial port of a computer See the RTS CTS Handshaking Settings section of Chapter 3 Serial Communications in the LookoutDirect Developer s Manual for detailed information Remote Terminal Unit a device similar to a PLC for use at a remote location communicating with a host system through radio or telephonic connections LookoutDirect mode in which processes run but no editing changes can be made Switch in and out of run mode by pressing lt Ctrl space gt or selecting Edit Edit Mode Signal Conditioning eXtensions for Instrumentation a National Instruments product line for conditioning low level signals Also called user and group accounts LookoutDirect uses security accounts to define what users or group of users have different operation privileges
4. Yes Single 8 Bit byte Control Relay RC760RC1000 RC1070 and Special Relay registers decimal Aliases Getting Started Guide B 12 www Automationdirect com Appendix B Table B 4 305 305S DirectLogic Data Members RC160 W RC360 W RC360 W Numeric Yes Since Bin word Control Relay 16 Bit word Control Relay RC760 W and Special Relay registers decimal Aliases RC1000 W RC1060 W RC160 WB RC360 WB Numeric Yes Single 16 Bit word Control Relay RC760 WB and Special Relay registers BCD Aliases RC1000 WB RC1060 WB RIOO RIOI50 Numeric Yes Yes Single 8 Bit byte registers decimal Aliases for mapped Inputs Paneer eee and Outputs IOO 10157 and 10700 10767 RIOO W RIO140 W Numeric Yes Yes Single 16 Bit word registers decimal Aliases for mapped Inputs RE UN roy and Outputs IOO IO157 and 10700 10767 RIOO WB RIO140 WB Numeric Yes Yes Single 16 Bit word registers BCD l l Aliases for mapped Inputs and RIOTO B RN Outputs IO0 10157 and 10700 10767 RS400 RS570 Numeric Yes Yes Single 8 Bit byte Shift Registers decimal RS400 W RS560 W Numeric Yes Yes Single 16 Bit word Shift Registers decimal RS400 WB RS560 WB Numeric Yes Yes Single 16 Bit word Shift Registers BCD SR400 SR577 Logical Yes No Shift Register Status Bits addressed in octal T600 T677 Logical Yes No Timer Counter status done bits addressed in octal TCA60
5. Read a specific bit in a Word not available for writing bits Convert to Real 32 bits DL250 DL350 and DL450 W Word 16 bits DL330 DL330P DL340 and DL305 WB Word 16 bits converts DL330 DL330P DL340 to BCD and DL305 Kp Note The range of data members shown in the following tables may be beyond the capacity of the specific DirectLogic PLC or compatible CPU that you are using OR may not include some of the data members shown Consult the appropriate PLC family user manual for the specific memory types and ranges available for your PLC CPU Automationdirect com B 7 Getting Started Guide Appensix B 05 105 205 350 405 DirectLogic PLC Family Data Members Table B 3 05 105 205 350 405 DirectLogic PLC Data Members Data Member aaa Activated Logical Yes No Object generated signal when TRUE this flag signifies an activeS communication connection between the process file and the PLC CO C3777 Logical Yes Yes Control Relays addressed in octal and mapped to V40600 V40777 CTO CT377 Logical Yes Yes Counter status done bits addressed in octal and mapped to V41140 V41157 CTAO B Numeric Yes Yes Counter current value words BCD CTA377 B addressed in octal and mapped to VO1000 V01377 CTAO DB Numeric Yes Yes Counter current value double words two CTA376 DB adjacent addresses 32 Bit BCD addressed in octal and mapped to V01000 V01377 Failed Logical Yes No Object g
6. 9600 baud and odd parity If the first attempt is unsuccessful a second attempt will be made using an autobauding sequence If both attempts at establishing communication with the PLC are unsuccessful use the Link Editor to manually adjust the port configuration until communications are established Kp Note The choice of protocol is determined by two factors Automationdirect com Whether or not the PLC supports the protocol on the port where you are connect ing Refer to your PLC user manual for a list of protocols available for ports on PLCDirect and compatible CPUs If you need to perform write operations to individual Discrete I O points or con trol relays In this case you must select the K sequence protocol DirectNET pro tocol cannot write to individual bit locations B 15 Getting Started Guide Appensix B Enter a unique name for the link that is no more than 16 characters in length and a description of that is no more than 32 characters in length and then click Finish The name of the new link appears in the Link gallery of the Select Link dialog box Click Select The abbreviated name for the communications link you selected appears in the Comm Link text box in the Create DirectLogic dialog box ny Note The Poll Rate and Poll text boxes are used to for Modem RF communications links or to compensate for noisy networks Under normal circumstances it is unnecessary to complete these text boxes Refer to the onli
7. Getting Started Guide Measurement of data transmission speed formally defined as the number of electronic state changes per second Because most modems transmit four bits of data per change of state is sometimes misused or misunderstood a 300 baud modem is moving 1200 bits per second See BPS Graphic files in bitmap format If you are using a bmp file in LookoutDirect you cannot resize it on screen See Windows metafile Bits per second measure of the rate of transfer of data LookoutDirect uses the CBL Control Block Language compiler to compile a LookoutDirect source file 1ks into a binary file 14p A LookoutDirect file containing a LookoutDirect object class A cbx Control Block Extension file may have one or more object classes in it A method of verifying that the number of bits received is the same as the number of bits transmitted Used by TCP IP and serial protocols The LookoutDirect historical database that stores your data for access later See object classes A LookoutDirect process that monitors a LookoutDirect server process LookoutDirect clients should be computer independent so that they can be run from any computer on your network LookoutDirect server processes run on computers actually connected to your control hardware Term sometimes used for a serial port Input to a LookoutDirect object s writable data members For more information refer to Chapter 4 Using LookoutDirect Lookout
8. begin by adding about 20 milliseconds to your radio key up time Then increase this value in 10 millisecond increments until the remote radio begins to correctly receive the first bytes of the message Some radios may assert CTS before they are actually ready to transmit In this case disconnect the CTS line pin 5 on a 25 pin RS232 connector and set the CTS timeout to a value high enough to let the radio fully key before transmission After it transmits the last byte of data LookoutDirect continues to assert RTS keeping the radio keyed until the RTS delay off time period expires You should set this value to the default of zero milliseconds so that LookoutDirect un keys the radio as soon as possible to prepare to receive the response B 4 www Automationdirect com Appendix B When un keyed most radios generate an audible squelch tail that the remote device might decode as unexpected garbage bytes Some remote devices reject the entire message instead of just decoding the valid data and ignoring the extra garbage bytes In this case keep the radio keyed for several milliseconds using the RTS delay off setting This time period delays the squelch tail long enough for the remote device to recognize the last data frame as valid before receiving garbage bytes caused by the squelch tail If you set the RTS delay off setting too high the remote device begins transmitting its response before the local radio is un keyed causing a communicat
9. identification method you must change the default value from Name in order to make it unique on the network e The Description field can contain a 32 character alphanumeric string e The IP Address field must contain a valid IP address that is unique on your network You must be careful not to duplicate IP addresses on a network you will not be able to complete the link configuration if the IP address is not unique Your Network Administrator should be able to tell you what addresses are available to use If you intend to use IP Address you must change the value from its default value B 18 www Automationdirect com Appendix B ig Note You must be careful not to duplicate information in these user configurable fields in any module on the network You will not be able to complete the Link creation process if you choose an identifier that has been duplicated on another module Automationdirect com If you enter new values for a field click the Update Module button to write these new values to the EEPROM in the Ethernet module The Query Network button will initiate a rescan of the network using the Transport and Transport Protocol previously specified B 19 Getting Started Guide Appensix B Getting Started Guide B 20 www Automationdirect com Glossary A absolute date Numeric system LookoutDirect uses for keeping track of dates and times absolute time in which midnight 0 hours January 1 1900 is represent
10. memory registers decimal V0 B V41237 B Numeric Single 16 Bit V memory registers BCD 0 9999 V0 DB Numeric Double two adjacent registers 32 Bit V41236 DB V memory registers BCD 0 99999999 VO R V41236 R Numeric Double word V memory registers signed real IEEE 32 Bit Floating Point VO S V41237 S Single 16 Bit V memory registers signed decimal ranging from 32768 to 32767 VCO VC3760 Numeric Yes Single 16 Bit V memory word registers decimal Aliases for mapped Control Relays CO C3777 Numeric VCO0 B VC3760 B VCTO VCT360 Numeric Yes VCTO B Numeric Yes Single 16 Bit V memory word registers VCT360 B BCD Aliases for mapped Counter Status done bits CTO CT377 Numeric Yes Single 16 Bit V memory word registers BCD Aliases for mapped Control Relays CO C3777 Single 16 Bit V memory word registers decimal Aliases for mapped Counter Status done bits CTO CT377 Automationdirect com B 9 Getting Started Guide Table B 3 05 105 205 350 405 DirectLogic PLC Data Members VGX0 VGX3760 VGX0 B Numeric Yes Yes Single 16 Bit V memory word registers VGX3760 B BCD Aliases for mapped Remote I O Single 16 Bit V memory word registers decimal Aliases for mapped Remote I O Inputs GXO GX3777 Inputs GXO GX3777 VGY0 VGY3760 Numeric Yes Yes Single 16 Bit V memory word registers decimal Aliases for mapped Remote I O Outputs GYO
11. 0 B Numeric Yes Yes Single 16 Bit V memory word registers BCD Aliases for mapped Outputs YO Y1777 XO X1777 Logical Yes Yes Inputs addressed in octal and mapped to V40400 V40477 YO Y1777 Logical Yes Yes Outputs addressed in octal and mapped to V40500 V40577 Automationdirect com B 11 Getting Started Guide Appensix B 305 305S Direct Logic PLC Family Data Members Table B 4 305 305S DirectLogic Data Members Object Rr eel signal when TRUE this flag signifies an active communication connection between the process file and the C160 C373 Logical Control Relays addressed in octal C1000 C1067 C374 C377 Logical Special Relays addressed in octal C770 C777 C1070 C1077 Failed Logical Object generated signal when TRUE this flag signifies the process file is no longer communicating with the PLC 100 10157 Logical Inputs and Outputs addressed in 10700 10767 ee Paused Logical Object generated signal when TRUE this flag signifies that the communication connection has paused but is still active and will go FALSE when its paused condition is satisfied Usually caused by memes the Link while it is in RO R777 Numeric Yes Single 8 Bit byte registers decimal RO W R776 W Numeric Yes Single 16 Bit word registers decimal RO WB RO WB R776 WB WB cae at Single 16 Bit Single 16 Bit word registers BCD registers BCD E RC370 Numeric
12. 0 WB Numeric Yes Yes Timer Counter current value words TCA677W WB BCD addressed in octal and mapped to R600 R677 Automationdirect com B 13 Getting Started Guide Establishing DirectLogic PLC Links LookoutDirect will use Links to easily build and store the communication settings for the DirectLogic PLC connection s This will also remove the guess work from communication settings There are three different types of Links you can create e a standard serial link that uses COM1 through COM4 directly to the PLC port e a serial link that will connect through a pair of modems to the PLC port e a link that will connect through a network card to an Hx ECOM module The majority of communications links can be quickly established using the LinkWizard The Link Wizard automatically searches for established communications links ny Note If you have a network of PLCs you must build a communications link for each different PLC For example it is possible that all PLCs on a network have the same communications settings protocol baud rate etc However each one would have a unique station address therefore you must build a separate link for each one Establishing a Communications Link Using the LinkWizard 1 Select Object Create Drivers choose DirectLogic as the object class and then click OK The Create DirectLogic dialog box appears with no Comm Link selected 2 Click the link button Create Direc
13. Direct objects you use to control a process change a data value adjust a register and so on LookoutDirect objects you can control with a LookoutDirect control object G 2 www Automationdirect com csv files CTS cursor data table D DAQ data member data type database datagram DCOM COM DDE Automationdirect com Glossary Comma Separated Value file a format widely accepted by spreadsheet and other data handling programs Clear to Send Part of a handshaking protocol for certain devices that connect the serial port of a computer See the RTS CTS Handshaking Settings section of Chapter 3 Serial Port Communications in the LookoutDirect Developer s Manual for detailed information The LookoutDirect data table can activate one row of data at a time using the data table cursor See the data table reference in the LookoutDirect online help or the LookoutDirect Object Reference Manual Short for Data AcQuisition Data source or sink associated with a LookoutDirect object A readable data member or source may be used in expressions or as inputs to other objects A writable data member or sink may have at most one connection into it created using the Object Edit Connections dialog box A data member may be both readable and writable See also native data member and alias Kind of value numeric logical or text that a parameter or data member can hold Collection of data stored for later retrie
14. ade of grey The number of pixels per inch determine the resolution of an image Programmable Logic Controller A software event in which a computer checks some value in a device or register In LookoutDirect a logical command that forces a device poll to check data member values How often a device is polled One variety of LookoutDirect control panel that can only be displayed at the size set by the process developer and which cannot be maximized When open a popup panel remains on top of other panels until minimized In LookoutDirect process refers to a LookoutDirect program used for industrial automation control monitoring or reporting The LookoutDirect binary file LookoutDirect executes when running a process Carries the 14p extension Data as it arrives in your process such as voltage or amperage Thermocouple data for instance arrives in volts as the raw unit and must be converted to degrees an engineering unit A serial communications setting that determines the number of empty bytes or amount of time a driver receives before recognizing the end of a message frame and requesting another message See the Setting Receive Gap section of Chapter 3 Serial Communications in the LookoutDirect Developer s Manual for more information about the receive gap G 9 Getting Started Guide Glossary redundancy remote resolution RTS RTU run mode SCX security accounts server source file
15. adjusting a control value entering or exiting edit mode opening or closing a control panel and logging in or logging out of the system Mathematical logical and other functions used by LookoutDirect expressions LookoutDirect expressions are often paths to a data member They can also function like variables that using a spreadsheet cell type formula become capable of performing flexible real time math operations condition testing and other complex operations functions See Chapter 1 Expressions in the LookoutDirect Developer s Manual for more information on expressions A failover is the takeover of a process by a standby computer when the primary computer fails for any reason An all digital communication network used to connect process instrumentation and control systems A National Instruments hardware product line for industrial automation control monitoring and reporting Sequence of bytes sent from a computer to a device or vice versa The syntax of the frame depends on the protocol being used A read frame contains enough information to specify a set of variables whose values the device should return A write frame specifies a variable in the device and a new value to write into that variable Some protocols support the writing of multiple variables in a single frame A response frame is returned from the device to the computer indicating whether the frame just sent to it was received successfully If the frame jus
16. dem Settings section of Chapter 3 Serial Port Communications in the LookoutDirect Developer s Manual for detailed information A LookoutDirect object class that has a displayable component such as a Pot a Switch or a Pushbutton A Dynamic Link Library which is a collection of small special purpose programs which can be called by a larger program running on the computer Sometimes called Dynamically Linked Library Lookout Directobjects used to communicate with PLCs RTUs and other I O devices LookoutDirect mode in which you can alter and create objects within a process Switch in and out of edit mode by pressing lt Ctrl space gt or by selecting Edit Edit Mode In LookoutDirect used to refer to scaled or converted data Thermocouple data for instance arrives in volts as the raw unit and must be converted to degrees an engineering unit Tasks LookoutDirect performs as a part of making your SCADA HMI work easier LookoutDirect environment services include serial communications database and logging security networking alarming and so on A widely used standardized local area networking technology specified in the IEEE 802 3 standard G 4 www Automationdirect com event expression functions expressions F failover FieldBus FieldPoint frame functionality functions Automationdirect com Glossary Anything that happens can be an event In LookoutDirect events include such things as
17. dem and finishes the polling cycle it drops the DTR line but the modem remains connected If the modem does not respond after several seconds of attempting to raise and drop the DTR line LookoutDirect generates an alarm stating that the modem is not responding If you receive this alarm message your modem is not configured to monitor the DTR line The Hayes Corporation standard command for configuring the modem to hang up and enter command mode upon loss of DTR is amp D2 You can use a terminal program to make this setting permanent on most modems by entering the modem command AT amp D2 amp W to store the setting permanently in nonvolatile modem memory Or you can just add amp D2 into the Dialing prefix The default Dialing prefix is ATX4MVEDT so you might change it to AT amp D2X4MVEDT Retries specifies the number of times LookoutDirect dials the specified phone number and attempts to connect to the modem at the other end of the line If it fails to connect after the specified Retries it generates an alarm and moves on to the next phone number in the polling queue if a queue has formed Wait for connection specifies the length of time LookoutDirect waits to receive a connect signal back from the modem it is calling The time period begins when LookoutDirect first sends the local modem the dialing prefix command The time should be long enough for the local modem to receive a dial tone dial the phone number allow the remote modem to pick
18. driver receives from a controller before the driver recognizes the end of a message frame and asks for another message Normally you should leave this at the default setting of 20 However if you are experiencing garbled communication alarms you might try increasing this number to allow more dead time before LookoutDirect decides it has received a complete message For example with a slow baud rate of 1200 you might have to increase the Receive gap setting to approximately 30 Hardwired serial connections require no hardware handshaking for line control Use this setting for all serial communication types except dial up telephone and remote radio transceivers You should also use this setting when directly connecting to the Master Repeater on a radio system or through a leased line modem Because a Master Repeater is a full duplex device that does not require keying and unkeying of the frequency it acts much like a physically hardwired network Other hardwired connection types include RS 232 RS 422 RS 485 and leased telephone lines B 3 Getting Started Guide Appensix B RTS CTS Handshaking Settings Getting Started Guide RTS CTS is a local hardware handshaking mechanism between the local computer and the local communication device Use the Radio RTS CTS serial connection when connecting the serial port to a device that requires RTS CTS hardware handshaking such as a radio transceiver that must be keyed up during data tran
19. e way of uniquely identifying itself on a network The Ethernet address which is assigned at the factory is most always unique but it is not always the most convenient identifier to remember Fortunately there are three user configurable identifiers available the Module ID the Name and the IP Address the Ethernet address is not user configurable The Address Mode selection determines which of these indentifiers LookoutDirect will use to locate the ethernet modules on your network The important thing to remember is that whichever identifier you choose for the Address Mode it must be unique on the network If you want to change the module s configuration click the Setup button and make any adjustments needed for your network Setup Button Selecting a module in the Devices section will display the current configuration for that module in the Configuration section Before you change any of the values look at each of the options in more detail e The Module ID is a unique numerical identifier given to each module on the network This number can be either the module s dipswitch setting or a user configured address if the dipswitches are set to address 0 Refer to the Ethernet module s user manual part number H24 ECOM M for detailed information on assigning an address e The Name field can contain a 32 character alphanumeric string The value assigned at the factory is Name If you intend to use the Name field as the
20. ed by 1 midnight of January 2 1900 is represented by 2 and so on The absolute date time number 36234 47222250 represents 11 20 AM March 15 1999 The numeric value for 1 second in LookoutDirect is 000011574 the numeric value for 1 minute is 000694444 and the numeric value for 1 hour is 041666667 ACK Acknowledge an alarm or event active notification A feature of event driven software systems in which the application is alerted of value changes when they occur instead of through continuous loop driven queries address space An OPC term for the area you browse to find what items are available on an OPC server Part of the standard OPC interface this space may arrange items hierarchically alarm Software notification of a condition in a process This alarm may call attention of a value that has exceeded or fallen below certain levels set in the object database or in an Alarm object alias Name given to a data member using the Edit Database dialog box This name can be descriptive or mnemonic and may be associated with other data member configurations such as scaling logging and alarming A data member can have more than one alias each with different associated configurations Automationdirect com G 1 Getting Started Guide Glossary B baud rate bmp files BPS C CBL compiler cbx file checksum Citadel classes client comm port connection control objects controllable objects
21. enerated signal when TRUE this flag signifies the process file is no longer communicating with the PLC GX0 GX3777 Logical Yes Yes Remote I O Inputs addressed in octal and mapped to V40000 V40177 GY0 GY3777 Logical Yes Yes Remote I O Outputs addressed in octal and mapped to V40200 V40277 Paused Logical Yes No Object generated signal when TRUE this flag signifies that the communication connection has paused but is still active and will go FALSE when its paused condition is satisfied Usually caused by modifying the Link while it is in use SO S1777 Logical Stage status active bits addressed in octal and mapped to V41000 V41077 SPO SP777 Logical Special Relays system status bits addressed in octal and mapped to V41200 V41237 Getting Started Guide B 8 www Automationdirect com Appendix B Table B 3 05 105 205 350 405 DirectLogic PLC Data Members TO T0377 Logical Yes Yes Timer status done bits addressed in octal and mapped to V41100 V41117 TAO B TA377 B Numeric Yes Yes Timer current value words BCD addressed in octal and mapped to VOO000 V00377 TAO DB Numeric Yes Yes Timer current value double words two TA376 DB adjacent addresses 32 Bit BCD addressed in octal and mapped to VOO000 V00377 VO V41237 Numeric Yes Yes Single 16 Bit V memory registers decimal V0 D V41237 Numeric Yes Yes Double two adjacent registers 32 Bit V
22. in LookoutDirect See Chapter 6 Security in the LookoutDirect Developer s Manual for detailed information on LookoutDirect security A process that provides data services to client processes In LookoutDirect server processes are intended to be run on one computer only with direct connections to field hardware Client processes interact with field hardware through server processes LookoutDirect file that can be compiled to produce a binary LookoutDirect process file that runs a process Uses a 1ks file extension G 10 www Automationdirect com SQL standby startup file state file system objects T TCP TCP IP text data member trace traces table trend W wav files Automationdirect com Glossary Structured Query Language used to get information from and update information in a database A computer standing by to take over running a process if the primary computer fails or falls offline A LookoutDirect process file 14p you designate in the System Options dialog box that LookoutDirect will open and run any time LookoutDirect is opened The LookoutDirect file that stores the value of all LookoutDirect control parameters and object data members in use in a process Uses the file extension 14t LookoutDirect objects used to control other objects or process and analyze data Transmission Control Protocol a method protocol for sending data between computers Used with IP the Inter
23. ion alarm in LookoutDirect Dial Up Modem Settings Automationdirect com Use the Dial up serial connection when you use a modem in conjunction with a switched telephone line not leased line You can customize the dial up settings for your particular modem and phone line The default Dialing prefix settings are based on the Hayes Corporation AT command set which is an industry standard for data modems The following table explains the LookoutDirect default settings For additional commands refer to your modem operation manual Table B 1 Default Dial Up Modem Settings Attention code that must precede all commands Dial phone number with these modifiers P for pulse T for tone Local echo mode E for no echo Verbal or numeric result codes V for numeric result codes Result code and dialing options X4 waits for dial tone before dialing and recognizes busy signal Speaker on or off M for speaker always off When you use an external dial up modem with LookoutDirect the DTR line in your cable between the modem and the computer must be wired straight through This line is pin 20 on a 25 pin RS 232 connector and pin 4 on a 9 pin connector LookoutDirect uses the DTR line to command the modem to disconnect hang up and return to the command mode B 5 Getting Started Guide Appensix B Some factory modems are not configured to respond to the DTR line After LookoutDirect first successfully dials out to a remote mo
24. is section provides the necessary steps to configure serial port settings for hardwired radio and dial up communications 1 From the LookoutDirect menu bar select Options Serial Ports The Serial Port Settings dialog box appears Serial Port Settings Serial port CO M1 Receive gap 20 Serial connection bytes amp Hardwired Dialup C Radio ATS CTS Fale dela at fo eS timeout fico Tes Draup settings Dialing pretis ATH4MVEDT Beties 3 Ment fol cannectiarn En seconde Pause between calle 2 secandE Alarm priority ji Defaults _ Accent uit Help Getting Started Guide B 2 www Automationdirect com Appendix B 2 In the Serial Port data field select the communication port you are defining In this example we are using COM 1 3 Define the serial port parameters for the appropriate communication port 4 Click on Accept to save the parameter changes for the serial port 5 Click on Quit to exit the dialog box Selecting the Serial Port The Serial Port data field is a drop down list box Use it to select the communication port you are defining Windows supports up to nine serial ports however most computers support only two serial ports without additional hardware Setting the Receive Gap Hardwired Settings Automationdirect com The Receive gap setting is available for all serial connection types This number specifies the number of empty bytes or amount of time a
25. ish Every read only write only or read write connection LookoutDirect makes to external hardware is counted as an I O point LookoutDirect is licensed for use with a set number of I O points If you exceed the number you are licensed to use with your copy of LookoutDirect a warning message appears on your computer screen warning you to shut down one of your processes within a specified time before LookoutDirect cuts back on I O usage A LookoutDirect data member containing the fundamental data for certain object classes When you make a connection to an implicit data member you only use the name of the object not the name of the object followed by the data member name G 6 www Automationdirect com L 14p files 14t files lka files lkp files lks files logging logical data member lst files M multiplex Automationdirect com Glossary File extension for LookoutDirect process files These are the compiled files LookoutDirect runs when it runs a process File extension for a LookoutDirect state file which stores the values for LookoutDirect controls and other objects with state information File extension for LookoutDirect security files File extension for LookoutDirect process files in versions of LookoutDirect earlier than LookoutDirect 4 File extension for a LookoutDirect source file which LookoutDirect compiles to make a LookoutDirect process file that LookoutDirect can run This i
26. ne help for further information Using the Link Wizard to Add an Ethernet Link The following provides the procedure for configuring a communications link between a standard network interface card and an Ethernet communications module ny Note Refer to Windows online help for information on configuring your network and installing network protocols l In the Select Link dialog click Add The Link Wizard opens Select Ethernet and then click Next Select the correct transport and protocol and then click Next LookoutDirect scans the network for ethernet modules Kp Note The following restriction apply to the transport layer Getting Started Guide e Ifthe Operating System is Windows NT 4 0 the only Transport option available to you is Winsock Windows 95 98 allow you to choose either IPX interrupt or Win sock e Ifyou select UDP IP as the Transport Protocol you must change the IP address of the module from its default value of 255 255 255 255 before you can connect to it 4 Select the device and addressing mode If you selected the UDP IP protocol in the last step enter correct the IP address of the network card Refer to Making Changes to the Device and Addressing Mode below further information Click Next B 16 www Automationdirect com Appendix B LookoutDirect attempts to communicate with the ethernet module 6 Enter a unique name for the link that is no more than 16 characters in length and a descri
27. net Protocol TCP IP sends data as packets with IP handling the delivery of data and TCP keeping track of the individual packets LookoutDirect data member used for text data A term for data from a single source over some period of time stored in an ODBC compliant database ODBC databases present data in the form of traces tables A traces table contains a field or column of data for each data member being logged along with a field you can use to query the database Historical data showing the change in a value over time Often used in connection with graphing the data for display File extension given to sound files You can play a wav file in LookoutDirect to add sounds or speech to alarms or events G 1 Getting Started Guide Glossary Windows metafile wmf file X xls file Getting Started Guide A standard graphics file type for use in the Microsoft Windows operating environment If you use a metafile graphic in LookoutDirect you can enlarge or reduce it on the screen use them as masks without specifying transparent pixels and use the LookoutDirect Animator to animate the colors of the graphic File extension given to Windows Metafile graphic files File extension given to Microsoft Excel files G 12 www Automationdirect com
28. ption of that is no more than 32 characters in length and then click Finish The name of the new link appears in the Link gallery of the Select Link dialog box 7 Click Select The abbreviated name for the communications link you selected appears in the Comm Link text box in the Create DirectLogic dialog box Making Changes to the Device and Addressing Mode Module List Group Each ethernet module is assigned a unique 12 digit address at the factory called the Ethernet address A sticker located either on the back of the PC board in the module or on the side of the module itself will have the Ethernet address printed on it The Module List will display any ethernet modules it finds on the network sorted by their Ethernet address If you select any device in the Module List the current configuration for that device is displayed in the fields in the Address Mode section e The Query button executes a rescan of the network for Ethernet mod ules using the same Transport and Transport Protocol specified in the previous dialog e The Setup button displays a dialog box that allows you to assign a Name Description and IP address to the selected module e The Link Editor button displays a dialog box that will let you manually configure the Link parameters for a specific Ethernet module Automationdirect com B 17 Getting Started Guide Appensix B Getting Started Guide Address Mode Group Each ethernet module must have som
29. rely on their own proprietary network cards for interfacing to the outside world A few examples include Modbus Plus SA85 card Data Highway KT card and DeltaTau PMAC card You do not need to configure serial ports for these object classes Refer to the appropriate object class documentation in Online Help or the Reference manual to verify if a particular object class uses a Serial port ion in Online Help Automationdirect com B 1 Getting Started Guide Understanding the Communications Service The LookoutDirect serial communication service allocates serial port usage between driver objects At the frequency of the object Poll Rate a driver object notifies the communications service that it needs to use a specific serial port to poll a device If the requested serial port is not in use LookoutDirect allocates the serial port to the driver object When the driver object takes control of the serial port it defines port communications parameters such as baud rate and protocol and polls its device When polling is complete the driver object releases the port so the communications service can allocated it to other driver objects You can uniquely configure each serial port for hardwired radio or dial up communications through the Serial Port Settings dialog box Kp Note You must define serial port communication settings on both the Development Runtime and Runtime only LookoutDirect products Defining Serial Port Connections Th
30. s the file you should make sure you keep backed up in case you need to recreate a corrupted process file or in case some future version of LookoutDirect cannot run a process file compiled in an earlier version of LookoutDirect The process of storing data in a computer database file See Chapter 7 Logging Data and Events in the LookoutDirect Developer s Manual for more information on logging data in LookoutDirect A LookoutDirect data member of the logical data type Extension for the LookoutDirect state file in versions of LookoutDirect earlier than LookoutDirect 4 A method of working with more than one data stream using only one communications channel There are a number of different methods of multiplexing depending on the hardware and software being used A number of LookoutDirect driver objects support multiplexing hardware G 7 Getting Started Guide Glossary N native data member NetDDE numeric data member O object object classes object connections ODBC OPC Getting Started Guide Data members built into a LookoutDirect object class as opposed to data members you create by using aliases A way of networking using DDE dynamic data exchange retained in LookoutDirect 4 and later for compatibility with earlier versions of LookoutDirect A LookoutDirect data member of the numeric data type A specific instance created from an object class Software modules you use to create individual objec
31. smission and unkeyed during data reception Other half duplex communication media such as RS 485 may require RTS CTS hardware handshaking When you select RTS CTS hardware handshaking LookoutDirect controls the RTS or request to send pin and monitors the CTS or clear to send pin during data transmission pins 4 and 5 on a 25 pin RS 232 connector Therefore you must have at least the RTS pin pin 4 wired straight through on your RS 232 cable The CTS pin pin 5 is optional LookoutDirect initiates a serial transmission on an RTS CTS port by first asserting RTS to key the radio It then begins monitoring the state of the CTS pin When the radio transmitter is fully keyed and ready to transmit the radio asserts CTS and immediately begins data transmission If the radio does not assert CTS within the CTS timeout setting default 1s 100 msecs LookoutDirect assumes the radio is ready to transmit and transmits anyway The CTS timeout setting is the maximum amount of time that LookoutDirect waits after asserting RTS for CTS before transmitting Most radios typically take between 10 and 80 milliseconds to key up Consult your radio specifications and DIP switch settings to determine the key up delay on your radio If your radio can assert CTS when it is ready to transmit add about 50 milliseconds to the radio key up delay specification and use this total value for the CTS timeout If your radio does not assert CTS you should
32. t received was a read frame the response frame contains a set of requested values The way an object works operates or performs a task Functionality is a general concept that applies in the same way to all objects in a given object class Parameters define the specific functionality of an individual object See expression functions G 5 Getting Started Guide Glossary G gray proximity H Hi and HiHi historical logging HOA I T O point implicit data member Getting Started Guide A term used in LookoutDirect color animation This sets what percentage of gray will be replaced by a given color as conditions change in a monitored value or set of values Alarm settings Both warn that a value has gone above some setpoint Generally a Hi alarm is used to alert an operator of a need for intervention A hihi alarm is usually used to alert an operator that the value has been exceeded by an even greater margin than a hi alarm indicates and is usually used to indicate an urgent need for action The process of storing data in a database for use at another time or from another location Hand Off Auto control used to set whether a value must be changed manually is completely turned off or functions automatically You can use a Pot object and a complex expression to create this sort of control in LookoutDirect or you can use a RadioButton object depending on the particular requirements of the task you need to accompl
33. tLogic DL Tag Comm Link Pall Rate The Select Link dialog appears Existing communications links that are links found by the Link Wizard are displayed in the Links gallery Getting Started Guide B 14 www Automationdirect com Appendix B Mg Note If no links appear in the Links gallery refer to Using the Link Wizard to Add a Serial Communications Link below 3 Double click the desired link The links name appears on the Create DirectLogic dialog box in the Comm Link text box 4 Click OK to establish the link Using the Link Wizard to Add a Serial Communications Link The wizard will guide you through the creation of a communications link between LookoutDirect and your PLC 1 Inthe Select Link dialog click Add The Link Wizard opens 2 Select the correct communications port and then click Next Select the PLC family Click Not Sure if you do not know what family your PLC belongs to Click Next after making your family selection If you are using a AutomationDirect compatible PLC the Link Wizard will attempt to detect the family automatically 4 Select the correct protocol The correct protocol will already be highlighted if a PLC family was selected in the previous step Click Next after making your protocol selection LookoutDirect attempts to establish communications with the PLC using the node address and protocol you selected The first attempt at communicating with the PLC will be made using
34. ts to perform tasks in LookoutDirect Software links between objects used to transmit data and commands from one object to another Open DataBase Connectivity a standard application programming interface API for accessing a database You can use ODBC statements to access files in a number of different databases including Access dBase DB2 and Excel ODBC is compatible with the Structured Query Language SQL Call Level Interface ODBC handles SQL requests by converting them into requests an ODBC database can use OLE for Process Control an industry standard interface providing interoperability between disparate field devices automation control systems and business systems Based on ActiveX OLE Component Object Model COM and Distributed COM DCOM technologies G 8 www Automationdirect com P parameter ping pixel PLC poll poll rate pop up panel process process file R raw unit receive gap Automationdirect com Glossary Input to an object similar to a writable data member whose value is specified in the object parameter list in a LookoutDirect source 1ks file Typically parameter values are set in the object Object Create or Object Modify dialog box A small utility program in Windows and DOS that checks to see 1f a computer can be reached across a network Also used to indicate the running of that program Picture Element the smallest bit of a picture Has one color or sh
35. up the line and send back a connect message If the specified time is too short your system could be operating correctly but never make a connection Pause between calls is the length of wait time after hanging up before it sends the local modem the next dialing prefix signal If the specified time is too brief your system may not hang up the existing call but instead attempt to call the next number Kp Note Specific modems radios and local phone lines may operate faster or slower than the default settings You may need to use a trial and error approach to find the best settings for your system Getting Started Guide B 6 www Automationdirect com Appendix B DirectLogic Data Members Protocol driver objects contain a great deal of data V memory registers inputs outputs internal control relays are all included within this object Therefore as soon as you create a DirectLogic object you have immediate access to the entire data member set of the object As with all LookoutDirect drivers you can access I O points and other data through data members The following tables contain data members currently supported by the DirectLogic object class Data Modifiers In order to have the DSData Server peform data conversions as it moves data in and out of the PLC the data modifier presented in the following can be added to the end of a data item Table B 2 Recognized by ee Lee Peace cadet PLC Convert to BCD 16 bits All
36. val display or analysis Message sent between objects in LookoutDirect A datagram contains a route and a value Distributed Component Object Model a Microsoft standard in which client program objects request services from server program objects The Component Object Model COM is a set of interfaces clients and servers used to communicate within the same computer running Windows 98 95 or Windows NT Dynamic Data Exchange currently used in LookoutDirect to exchange data with other programs such as Microsoft Excel running on your network G 3 Getting Started Guide Glossary deadband deviation dialing prefix displayable objects DLL driver objects E edit mode engineering unit environment services Ethernet Getting Started Guide A value that must be exceeded for an alarm to sound or a change in state to be recorded For instance if you have a low level alarm set at 5 with a deadband of 2 the alarm will not trigger until the value being monitored drops to 5 The alarm will then stay active until the value being monitored moves above 7 A deadband keeps small oscillations of value from triggering an alarm and then canceling it too rapidly Set a deviation to filter out small changes in value when logging data Before being logged to a database a value must change by at least the deviation amount of the last logged value Part of the Hayes AT command set for use with modems See the Dial Up Mo
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