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7700 series manual - Advanced Micro Controls Inc

1. TEE OU T I 7 E 7 Fig 3 1 Module Installation Keying Bands Plastic keying bands can be inserted into the slot that the 7700 Module plugs into to insure that a different module cannot be inserted into the slot accidentally The keying bands must be inserted in the top backplane connector to allow insertion of a 7700 Module Between 28 and 30 Between 34 and 36 ADVANCED MICRO CONTROLS INC 3 1 Chapter 3 Installation Compatible Transducers Presently the Series 7700 Modules have been tested with AMCT s LHT Series LDTs Balluff LDTs with a K2 Output Power Supply Option and MTS s Temposonics II LDTs The modules will interface with a Temposonics II as long as it has an RPM or DPM Personality Module installed in its head Temposonics Il DPM Setup Located on the DPM Personality Module are switches that are used to configure it for various resolutions and internal or external interrogation You should refer to MTS documentatio
2. df a I O Rack Number 0 4 O Rack Number 1 gt Gp RT au Ee 7 0 112 au Ere silo Module BT Address 110 a zk 7 PLC 2 Single Addr 111 a PLC 3 Single Addr 10011 GES PLC 5 Single Addr I 011 Addressing Shortcuts 1 YO Group Number is always odd 0 2 Slot Number is always equal to 0 mi E Em d E o D E OH E CC 00000000000 000 Module Slot Numbers Fig 5 6 Modules 1 Slot Address EE d RIO Rack 1 MO Rack 2 VO Rack 3 A ER EE EE e lle EES Module BT Address 220 dai PLC 2 Single Addr 122 CE PLC 3 Single Addr 10022 Sa PLC 5 Single Addr I 022 TAN 0 0 0000 Modu Slot Numbers Addressing Shortcuts 1 I O Group Number is always even 0 0 2 Slot Number is always equal to 0 hi EI 0 Fig 5 7 Modules v2 Slot Address General Restrictions and Warnings 1 Itis important to have the AMCI Module installed in a single slot pair See Installing the Module Pg 3 1 Doing this will avoid any potential addressing conflicts when using a 1700 Module and 16 pt modules with 2 Slot addressing or 32 pt modules with 1 Slot addressing 2 When using an AMCI Module as a Block Transfer M
3. iii 1 2 Fig 1 2 7700 Application erected eer GE Seg tia 1 4 Chapter 2 Series 7700 Module Description Pig 2 1 7400 Front Panel re LAI i ee ee t 2 1 F18 2 2 Position Display stereo Ee ER oe etr E ere alano 2 2 Elg 2 3 Velocity Display 1 2 ete OE EE ME EE ON 2 2 Fig 24 Count Direction ie eet et er a edes 2 2 E1925 Pull Scale Longitud A tude eee eee lana 2 3 FHS 2 6 Bull Scale Count 5 adas pae lisi 2 3 Fig 2 7 Position Offset A tone reet e re P cei Ee ge ELLO DE Ge Re HE Bede See ERG ig 2 3 Fig 2 8 Setup Display i ea ov ER eR ERE es 2 4 Fig2 9 EDT KEE 2 4 Fig 2 10 DPM Recirculations pnie teer iii 24 Fig 2 11 Measurement Unit 2 tere eb epe lle DES gese beg 2 5 Fig 212 LDIGradient e oki ie eee e ated e 2 5 Eie 2 13 Decimal Pont ee A ee edes 2 5 Els 2 14 Preset Value eee mee aa 2 6 Fig 2 15 Speed Averages 4 uta eee etel lili 2 6 Lig 216 Data Format A A ae 2 6 Eie 2 L jol ranster A 2 6 Fig 2 18 Transducer Eault 2 2 tette rete a eer enden 2 7 Fig 219 EPROM AAA A IAEA 2 7 Lig 2 20 PS Fault Rmo ie ete lari 2 8 Eig 221 Position Overtlow sv id ert Pe temen 2 8 Fig 2 22 Position Bi ed N RE ER EG 2 8 Fig 2 23 Proeram Switch i iunt reete eee ettet beg ie ED N ee Se Eee piece 2 9 Fig 2 24 Keyboard Description ii 2 10 Fig 2 25 Transducer Input Connector Part Numbers see 2 11 Fig 2 20 Power Fuse 2 e dete dte teta 2 11 Chapter 3 Installation
4. Transducer 1 Fault Transducer 2 Fault EEPROM Error Power Supply Fault Reserved for future use Reserved for future use Reserved for future use 0 z Position Velocity Data 1 Read Status Mode Fig 9 2 Hardware Error Format Software Errors Software Errors are errors that occur when programming a 7700 Module with Block Transfer Write Instructions All software error codes are listed in Error Codes Pg 10 9 Single Transfer Data Format You can configure a 7751 to use Single Transfers instead of Block Transfers See Transfer Type Parameter Pg 2 6 When you do this you lose the ability to program the 7751 from the PLC and you only have access to the Position Data Once configured to use Single Transfers the 7751 acts like a 16 bit Input Card It writes its data into the Input Image Table at the beginning of every scan The following restrictions apply Notes and Restrictions If you once used the 7751 as a Block Transfer module and you are converting your setup to use Single Transfers you Must Remove all BTR and BTW Instructions that access the 7751 mod ule Block Transfer Instructions write control data into the Input and Output Image Table locations that may corrupt the data from the 7751 Data is transmitted in Binary Format only Valid position data is in the range of 0 to 60 000 EA60 An underflow overflow message will be transmitted if the Position value is negative or gre
5. nT IT E 6 1 Data and Module Address sei Ee ee Ee teeth tenta d eee ooa eer hear etn 6 1 Block Eenegung eege iii read 6 1 Elle Address zt f e P UNTEN UNE ED DN PU PERPE RIS DARE DD NERO 6 2 Enable EN and Done DN Bits eise esse ee se eene nnne enne enne 6 2 ii ADVANCED MICRO CONTROLS INC Series 7700 Table of Contents Chapter 6 PLC 2 Block Transfer Instructions conta Programming Example ciuda 6 3 PLC 2 Restrictions and Warnings esse ee see Ge Ge ener nennen nennen nennen 6 4 Chapter 7 PLC 3 Block Transfer Instructions OVerVIeW ira aa a a OR ER TRE UR 7 1 Module Address EE Lai peu eiecit e 7 1 Data Address Hi e Pee tet tete A eek eR Ee av Ee PES e id a 7 1 File Length NES 7 1 Control Eie EN EE A E A T a AA 7 2 Latch Enable LE Error ER and Done DN Bits_ seen 7 2 Programming Example nia acts 7 3 PLC 3 Restrictions and Warnings ees see see Ge Ge RA nennen nennen nennen nenne 7 4 Chapter 8 PLC 5 Block Transfer Instructions OVErview ENEE EENS Ee OA E pede ve Ht E eed AAA i 8 1 Module Address eee nicer as 8 1 Control BlOCK ARE EE NE testet acti N OE Da Re MH MAE EO Er N 8 1 Data File ds 8 1 Elle Long sk ASE EN ge EE EOD 8 1 ontinuousParamelef esse ge SEE GE Se MEE is 8 2 Enable EN Error ER and Done DN Bits _ 8 2 Programming Example EE Ee RE d be e eee 8 3 PLC 5 Restrictions and Warnings essere nennen ne
6. es ee ee ee Ge Ge nennen 8 2 Fig 8 3 7700 Module Block Length eene enne eene 8 2 Fig 8 4 PLC 5 Programming Example 2 eere 8 3 Chapter 9 Series 7700 Data Format Lig 9 T Data Format ER Hp teg uiii 9 1 Eig 9 2 Hardware Error Format und id leslie 9 2 Chapter 10 Programming Instructions and Error Codes Fig 10 1 7700 Program Instruction Format eese rennen rennen 10 1 Fig 10 2 Read Status Data Format sese een en en nne 10 8 Fig 10 3 Hardware Error Format i 10 9 Revision History This revision 7700 B94M replaces 7700 293M It adds information on the AMCI and Balluff transudcers It was first released 11 17 94 and coincides with software Rev 2 vi ADVANCED MICRO CONTROLS INC MWVIGH Chapter 1 Introduction to the 7700 LDT Interface Module The Series 7700 LDT Interface Modules Today s manufacturing processes are becoming more and more complex Achieving the goals of lower cost production higher output less wasted material and fewer rejects is important if a company is to compete in today s global economy To achieve these goals programmable controller systems are being used in more and more applications because of the precise control and flexibility that such a system provides One device that can be use to accurately measure linear distances is the magnetostrictive Linear Displacement Transducer LDT Until the introduction of the Series 7700 Modules inte
7. VO Rack Number 0 I O Rack Number 1 gt Ve We SN s4 56 ri With 1 Slot Addressing 1 I O Group is assigned to each slot in the chassis Each slot is given the Module Slot Number 0 HII D D E I OIE EE Oo B EE o EO EE o E zu o DU EE OO o el m 0 0 0 0 00 0 0 0 Module Slot Numbers Fig 5 2 1 Slot Addressing 1 0 Group Number I O Rack 0 I O Rack 1 VO Rack 2 amp He TE ORS OE Oe TEE TE DER With Slot Addressing two VO 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 77 0 1 2 3 4 5 6 71 Groups are assigned to each slot Each i slot is given the Module Slot Number 0 0 Tl Lg 0 0 0 0 0 Module Slot Numbers Fig 5 3 V2 Slot Addressing CU D Si E I o E EE Oo EB EE Oo EE CO E zu OE EE o o e e o o Addressing a Block Transfer Module All AMCI Modules communicate with the PLC through Block Transfers The PLC can read data from the AMCI Module with Block Transfer Read BTR Instructions and program the Modules Pr
8. Word 027 in the Output Image Table is reserved for processor use DO NOT puta BT Module in I O Rack 2 I O Group 7 The starting File address cannot exceed address 177778 The maximum number of Block Transfers that can be handled by Rev J firmware of the PLC 2 30 processor module is fifty Each BT Module decreases the total number of available Timer or Counters by 1 The File to File Move Instruction used to buffer the data from an AMCI module also requires 1 Counter If you need the counter you can replace the File to File Move Instruction with a series of GET PUT Instructions that are conditioned with the BTW Done bit ADVANCED MICRO CONTROLS INC ANGI Chapter 7 PLC 3 Block Transfer Instructions Overview All PLC 3 processors have Block Transfer Instructions in their instruction sets There are four parts to PLC 3 BT Instructions They are Module Address The I O Rack Group and Slot Numbers where the module is located Data Address The starting file address that stores data written to or read from the module File Length The number of words needed to store data written to or read from the module Control File The starting address of the file used to control the Block Transfer Module Address The Module address is the I O Rack Group and Slot Numbers where the module is located in the system The I O Rack Group and Slot Numbers are entered separately in the Block Transfer Instruction Data Address
9. Setup Parameters cont d DPM Recirculations If a DPM Personality Module is used the number of recirculations that it is set for must also be programmed into the 7700 Possible numbers are 1 2 and 4 recycles The LDT can be set for a higher number of recirculations without effecting the resolution but the position update time will be longer The minimum number of recirculations needed for a desired resolution is listed in Specifications Pg 2 12 It is imperative that the number of recirculations set on the DPM module and DPM Recirculations Parameter be equal If they are not the 7700 will not calculate correct position or velocity data To decrease position update time and simplify your ladder logic program you decide to limit your position values from 20 bits to 12 bits Decreasing the resolution of the system allows you to change the number of recirculations from four to two Note that the number of recirculations that the DPM Personality Module is set for must also be changed PRESS IND LEDS DISPLAY COMMENTS V ENTER 2 Value stored in E2PROM Blinking Cursor removed Measurement Unit You are using a LDT that has its length and Gradient specified in millimeters In order to sim plify programming you can change the Measurement Unit from the default of inches to millimeters Changing this parameter will reset all other parameters to their default values except the Connection Type and Speed Average parameters
10. The Data File is the block of words that stores the information read from or written to the AMCI Module The Data Address is the first address of the file The Data File must have an Integer of Binary data type and can be a separate file or part of a larger file Note that you must create the Data File before the program is executed You create the file from your program loader For details on creating files refer to the users manual for your program loader File Length The File Length is the number of words in your data file When programming a BTR Instruction you can set the Block Length to 00 This will reserve 64 words in the PLC 3 memory but the module will only transmit the number of words necessary When programming a BTW Instruction the number of words needed depends on the number of Program Instructions that you are writing to the AMCI Module The File Length of a BTW Instruction MUST equal the number of words used by the Program Instructions Using a File Length of zero will cause an Invalid Command Error if the number of words used by the Program Instructions is not 64 The table below lists the number of words transmitted by a 1700 Module when a BTR Instruction is executed Chapter 9 Data Format gives the format of the transmitted data 1700 USERS To make the present 1700 modules compatible with older versions you must set the Module to Read Only with the PLC Program Parameter If you set the PLC Program Parameter to Rea
11. A Indicator LED on the display indicates transducer 1 while the B Indicator LED indicates transducer 2 Decimal Point Parameter This parameter sets the position of a decimal point on the Position Full Scale Counts Position Offset and Preset Value displays The value of the Decimal Point Parameter sets the number of digits to the right of the decimal point Maximum value is 4 digits If you are using a 7752 Module the Decimal Point parameter for the additional transducer is sequentially available by pressing the NEXT Key The A Indicator LED on the display indicates transducer 1 while the B Indicator LED indicates transducer 2 ADVANCED MICRO CONTROLS INC 2 5 Chapter 2 Series 7700 Module Description Function and Parameter Displays cont d SETUP PARAMETERS cont d POS TAC SF o A B CG D PLC SERIES MATTI LILILILILI PRG RUN FAULT EH WEN MEN Fig 2 14 Preset Value POS TAC SF O A B e D BD EET N ee PLC SERIES PRG RUN FAULT Fig 2 15 Speed Average POS TAC SF o A RESESSIE Eer PLC SERIES DI PRG RUN FAULT EH WEN MEN Fig 2 16 Data Format POS o SF o A B e Ee CE pee pes aun en PLC SERIES PRG RUN FAULT Fig 2 17 Transfer Type Preset Value Parameter This parameter specifies the value that the Position Function will change to when the Auto Preset feature is used See Auto Preset Pg 4 6 The values of this parameter range from 499 999 If you are using th
12. Fig 8 4 PLC 5 Programming Example ADVANCED MICRO CONTROLS INC Rung 1 Rung 2 Rung 3 Rung 4 Rung 5 BTR Instruction to the AMCI Module Data will be transferred every scan with continuous transfer enabled Copy File Instruction buffers the data from the Module This in sures that the program will use the same data throughout each scan The BT Write is enabled when ever CRI is latched on CRI is latched on when a BTW Request is made CRI is unlatched when the BTW Request is removed and the BTW Done bit is set 8 3 Chapter 8 PLC 5 Block Transfer Instructions PLC 5 Restrictions and Warnings The following restrictions must be followed when using a BT NW A R N N G Module in a PLC 5 System If these restrictions are not followed unpredictable operation may occur 1 It is important to have an AMCI Module installed in a single slot pair See Installing the Module Chapter 3 Doing this will avoid any potential addressing conflicts when using a 1700 Module and 16 pt modules with 2 Slot addressing or 32 pt modules with 1 Slot addressing 2 When using an AMCI Module as a Block Transfer Module in a chassis that uses a Remote I O Adapter the I O Adapter must be a 1771 ASB Series B Firmware Rev F or later Using a Remote I O Adapter that has an earlier Series or Firmware Revision may not work properly with a BT Module 3 When using a single channel Transducer Interface Module 1731 41 7751
13. Broken Transducer Cable Improper wiring of the Transducer Cable Faulty Transducer If you are using a multi channel module the transducer fault may not be on the channel that is being shown on the modules display In this case the fault light will be on but the module will be displaying Position and Velocity information Use the NEXT Key to cycle through the modules channels until the fault is found Error Class 2 E2PROM Fault This message is displayed at all times The module recognizes that the program data Scale Factor Offsets etc is incorrect This error can be cleared by pressing the CLEAR Key If the Err 2 message remains after pressing the CLEAR Key the E2PROM memory is damaged and the module must be returned for repairs See inside front cover Returns Policy for additional information ERROR CLASS 3 RAM Fault Not implemented on the Series 7700 Modules Reserved for future expansion ADVANCED MICRO CONTROLS INC 2 7 Chapter 2 Series 7700 Module Description Status Indicators cont d ATAR Error Class 4 Power Supply Shut down Fault Shown only a A A when the module is displaying the Position and Velocity Data PLC SERIES Functions The parameters will be displayed normally This error occurs when the current draw from the power supply is to large and the Module turns the DC DC converter off There are three major causes of this fault Short across Transducer Cable S RE Mis
14. the most significant bit of the Hardware Error byte is set to a 1 This bit should be used to distinguish between Position Velocity data and Parameter Value data in the BTR file If you are in Read Status Mode and change the value of a parameter that is being transmitted to the PLC you must issue another Read Setup or Read Parameter Transducer 1 2 Instruction before the new parameter value is sent to the PLC ADVANCED MICRO CONTROLS INC Chapter 10 Programming Instructions and Error Codes Error Codes There are two classes of errors that the module is programmed to detect Hardware Errors These errors occur when the module detects a problem with the transducer connections or its own internal hardware Software Errors These errors occur if the Program Instructions received from the PLC are incorrect Error diagnostic codes are placed in the Status Word of the BTR file that is sent to the PLC In the case of Hardware Errors fault messages are also displayed on the front panel See Status Indicators Pg 2 7 Hardware Errors The least significant byte bit 0 7 of the Status Word is used to transmit information on hardware faults The format of the information is shown below BitNo 07 06 05 J04 03 02 01 100 Transducer 1 Fault Transducer 2 Fault EEPROM Error Power Supply Fault Reserved for future use Reserved for future use Reserved for future use 0 Position
15. 2 Transducer Mounn o trilocali 3 2 Grounding Clamp EE e OE EE OUE OE EE ONE N 3 2 Cable Installation nte entere E t Eee Pot eee Ue p tee EE 3 3 Chapter 4 Keyboard Programming CONVENIOS TREE ER echec etre OE GE aNd ns Se 4 1 Scaling Parameters nee A need eens ee eee oe 4 1 Count DIPECHO aoo RR Forte eov ed Ee ai eate notre Noua 4 1 Eull Scale Lenpthi RE N N RE N HEU 4 2 BUS Cale Count iS ti crt I TER deg 4 2 Position Offset 55 eto ec e Ex SEENEN 4 2 setup Parameters once re Lee rei e ie te Rau ath E Ebr ea 4 3 EDI Lype 2p EE ENE eh ce eel eth Be 4 3 DPM Recirculatiolls satinato 4 4 Measurement Uniti a e 4 4 EDT Eet EE 4 5 Decimal Point POSION ie ee iere reete ala 4 5 Pieset Male conset roa tate aeneon 4 5 Speed Average 15 ns dete RE OE EN 4 6 Data Format stanare 4 6 Transfer Type 5 255 Ang cee a AE ME HE dent 4 6 Auto Preset E s seht ete ete vo vU redet e Pe ee te P HEN PU 4 7 Chapter 5 AMCI Module Addressing Module Addressing ni eet eee HA Te Ee Ee Re E Eee ELI Eee ced da 5 1 Definition ot Terms uu oerte eter ette tdt ia 5 1 VO Rack ME EER ES OE EK EES 5 1 IO DC EE EE EE EE EE TO 5 1 Slot Addressing 1 EN a 5 1 Addressing a Block Transfer Module ie 5 2 Addressing a Single Transfer Module AA 5 3 Addressing Examples mensa eet EE EE AE EE EE cid 5 3 Restrictions and Warnings ii dete eee Rei e 5 4 Chapter 6 PLC 2 Block Transfer Instructions Oudl AAR CT
16. A Bo sen iD designate what is showing on the alpha numeric display When you are in Program Mode a blinking digit on the alpha numeric display shows the position of the Cursor PLC SERIES I Ip 3 C Status Indicators Indicates the operating condition of the AL 110 module PRG Yellow light is on when the module is in Program Mode AVUI RUN Green light is blinking when the module is operating FAULT Red light is on when there is a fault condition The nature of the fault is shown on the alpha numeric E display CLEAR PRG RUN FAULT FUNCTION ENTER A j y Program Switch Located on the top panel hidden from view Used to enable or disable Program Mode When lt gt NEXT enabled the module is programmable from the keyboard J Keyboard Used to examine or change the Functions and Parameters of the module ob LP Transducer Input Connector Connector for the AMCI Balluff or MTS Temposonics II Transducers o n a n o n n uuu n Fig 2 1 7700 Front Panel ADVANCED MICRO CONTROLS INC 2 1 Chapter 2 Series 7700 Module Description Function and Parameter Displays 2 2 The following displays are available on the 7700 Modules A brief description of each Function or Parameter is given to the right of the display Unless noted each of the displ
17. Average You wish to change the Speed Average from it s default setting of 120 mSec to 240 mSec The Speed Average parameter sets the amount of time that the 7700 Module totals the change in position of the magnet before calculating it s velocity in Counts per Second Increasing the Speed Average will reduce the amount of jitter that may occur in the velocity data PRESS IND LEDS DISPLAY COMMENTS A ENTER A S A 240 Value stored in E2PROM Blinking Cursor removed Data Format You are using a PLC 2 16 processor in your application Because all of the PLC 2 s math instructions use BCD numbers you want the Position and Velocity data in BCD format PRESS IND LEDS DISPLAY COMMENTS A ENTER NONE bed Value stored in E2PROM Blinking Cursor removed Transfer Type You are using a PLC 2 20 processor in your application Because this processor does not have Block Transfer Instructions you must configure the module to use Single Transfers PRESS IND LEDS DISPLAY COMMENTS Default Value Value stored in E2PROM Blinking Cursor removed 4 6 ADVANCED MICRO CONTROLS INC Chapter 4 Keyboard Programming Auto Preset Feature The Position Function can be forced to equal the Preset Value Parameter without the need to calculate the Position Offset This allows you to quickly set a reference position on the LDT In the example in Applications Notes this reference point is 250 00 and corresponds to the cylindrical
18. BTW Request CR1 L BTW Request BTW CR1 VI U DN Fig 6 5 PLC 2 Programming Example ADVANCED MICRO CONTROLS INC 6 3 Chapter 6 PLC 2 Block Transfer Instructions PLC 2 Restrictions and Warnings The following restrictions must be followed when using a BT NW A H N N G Module in a PLC 2 System If these restrictions are not followed 6 4 1 unpredictable operation may occur It is important to have an AMCI Module installed in a single slot pair See Installing the Module Chapter 3 Doing this will avoid any potential addressing conflicts when using an AMCI Module and 16 pt modules with 2 Slot addressing or 32 pt modules with 1 Slot addressing When using an AMCI Module as a Block Transfer Module in a chassis that uses a Remote VO Adapter the VO Adapter must be a 1771 ASB Series B Firmware Rev F or later Using a Remote I O Adapter that has an earlier Series or Firmware Revision may not work properly with a BT Module When using a single channel Transducer Interface Module 1731 41 7751 as a Single Transfer Module the chassis that contains the module MUST be set up for 1 slot or Ya slot addressing 2 Slot addressing will not function properly This is because of the restrictions imposed by the Allen Bradley TIC chip If remote racks are being used words 125g and 126g are used to store remote I O fault bits BT and Input Modules must not be placed in the following slots RACK 2 Groups 5 and 6
19. Velocity Data 1 Read Status Mode Fig 10 3 Hardware Error Format When an error is detected the 7700 Module sets the appropriate bit to 1 ADVANCED MICRO CONTROLS INC 10 9 Chapter 10 Programming Instructions and Error Codes Error Codes conta Software Errors When an error occurs in the Program Instructions the 7700 responds by placing an error code in the Software Error byte of the Status Word and then stops accepting Program Instructions until the error is cleared with the Clear Errors Command See Clear Errors Pg 10 2 For example your BTW file contains 5 Program Instructions The third Instruction tells the module to set the Full Scale Count to an invalid number The 7700 will execute the first two Program Instructions normally but will set an error code when it tries to perform the third Instruction Program Instructions 3 4 and 5 will not execute ERROR ERROR CODE WORD COMMENTS Invalid Command 218cp Occurs when the Command Word is incorrect This error most often occurs when a Data Word is interpreted as a Command Word Invalid Message This error occurs when the final Instruction in the BTW file Length does not have enough Data Words The problem may be an improper LENGTH value in the BTW Instruction Placing ANY Instruction after a Read Parameter Instruction or attempting to read parameters from both transducer will also cause this error Message Ignored 23BCD You attempt
20. a Transducer Fault condition Position and Velocity Data equal 0 See Status Indicators Pg 2 7 for more information P Power Supply Fault bit It equals 1 when the internal power supply is shut down Position and Velocity Data equal 0 See Status Indicators Pg 2 8 for more information U Underflow Overflow Bit It equals 1 when the Position Data is greater than 99 999 or less than 99 999 Position Data equals the amount of underflow overflow Use the Sign bit to determine if the condition is an Underflow or Overflow See Status Indicators Pg 2 8 for more information S Sign Bit It equals 1 when the Position Data is negative Notes 1 A 7751 transmits the first four words and the Status Word A 7752 transmits all nine Words 2 Datacan be transmitted in Binary or BCD format See Data Format Parameter Pg 2 6 3 t may be necessary to convert the Position or Velocity data to a continuous 20 bit format This is accomplished by Word 1 1000 Word 2 Note that you should mask the four status bits from Word 1 before you convert the Position data ADVANCED MICRO CONTROLS INC 9 1 Chapter 9 Series 7700 Data Format Block Transfer Data Format cont d Hardware Errors The least significant byte bit 0 7 of the Status Word is used to transmit information on hardware faults The format of the information is shown in Fig 5 2 BitNo 07 06 0504 03 02 01 100
21. as a Single Transfer Module the chassis that contains the module MUST be set up for 1 slot or 2 slot addressing 2 Slot addressing will not function properly This is because of the restrictions imposed by the Allen Bradley TIC chip 4 When the processor enables a Block Transfer it put all of the needed information into a queue A queue is a data structure where the first piece of information put into the queue is the first piece of information taken out Once the information is queued a separate part of the processor performs the Block Transfer while the rest of the processor continues with the program scan Each I O Rack in the system has it s own queue Each queue can hold 17 BT Requests When the Block Transfer has its Continuous bit set to 1 Continuous Parameter is YES the Block Transfer is placed permanently in the queue Each Queue has a Queue Full bit in word 7 of the processor s status file Bit 8 is for Rack 0 Bit 9 is for Rack 1 and so on up to bit 15 for Rack 7 The appropriate bit is set when a Queue is full of BT Requests Once set your ladder logic program must clear these bits We recommend that your program monitor these bits and take appropriate action if these bits are set Note If you have more than 17 Block Transfers associated with one rack and you set all of their continuous parameters to YES only the first 17 Block Transfers scanned will be performed All other transfers cannot be put into the queue and will ne
22. data to a range of values meaningful to your application In the example you are measuring the amount of liquid on a cylindrical tank p IRE DET hit Y Tank Height De EED ms LDT Length Cm IH ae Resolution ER BH Zi A EES Ka IERE Figure 1 2 7700 Application Tank Capacity 250 Gallons 40 Inches 72 Inches 0 01 Gallons 7700 Programming Count Direction Negative F S Length 40 Inches F S Count 25000 250 0 01 Position Offset Approx 20000 Exact Offset calculated with AUTO PRESET feature LDT Type AMCI Default DPM Recycles Not used with AMCI LDT Measurement Unit Inches LDT Gradient Transducer Dependent Decimal Point Di Preset Value 25000 Speed Average 240 milliseconds ADVANCED MICRO CONTROLS INC Chapter 2 Series 7700 Module Description Front Panel Description The following is a description of the features found on the Series 7700 Modules Separate sections of this chapter describes the parts in detail Unless otherwise noted all information presented in this chapter is applicable to all of the modules in the 7700 Series A w SA Function Display Used to show the Functions and Parameters of the 7700 Module The eight LED indicators POS TAG SE 0
23. tank being full In order to use the Auto Preset Feature you must have the 7700 in Program Mode and the Position data must be showing on the display PRESS IND LEDS DISPLAY COMMENTS ADVANCED MICRO CONTROLS INC 4 7 Chapter 4 Keyboard Programming Notes 4 8 ADVANCED MICRO CONTROLS INC Chapter 5 AMCI Module Addressing Module Addressing This chapter explains how to address a Block Transfer module and is applicable to all AMCI products for the 1771 I O structure Also covered is addressing a Single Transfer module which is applicable to the 1731 1741 and 7751 Modules When information in this chapter applies to an AMCI Module it applies to all Series 1700 2700 and 7700 Modules When information only applies to specific modules product numbers of the effected modules are listed When you configure your Programmable Controller System you specify a unique address for each slot of each chassis in the system An I O Rack number and an I O Group Number make up each address An I O Slot number further specifies a Block Transfer address Note that an VO Chassis is not the same as an VO Rack Number An I O Chassis is the physical enclosure that the cards and modules plug into An I O Rack Number is part of a modules address in the system Each VO Chassis can have to 4 VO Racks associated with it Definition of Terms I O Rack The number of I O Racks in the system not the number of chassis define the Programmabl
24. the Enter Read Status Mode Instruction in the block of Programming Instructions transmitted to the module Once this Instruction is accepted use one of the four instructions listed below to tell the module which parameters to transmit These Instructions are valid only after the Enter Read Status Mode Instruction has been accepted and MUST be the last Instruction in the Block Transfer Write data The format of the data transmitted back to the module while in Read Status Mode is given in the following section Read Status Data Format Pg 10 8 COMMAND COMMAND WORD COMMENTS Read Setup X 0 3 Use this Program Instruction to read the values Transducer 1 of the parameters written to the module with the Store Setup Transducer 1 Program Instruction The format of the Command Word written to the module and the format of the Data Words read from the module are the same as the Store Setup Transducer 1 Program Instruction Read Parameters X 0 F Use this Program Instruction to read the values Transducer 1 of the parameters written to the module with the Store Parameters Transducer 1 Program Instruction The format of the Command Word written to the module and the format of the Data Words read from the module are the same as the Store Parameter Transducer 1 Program 10 6 Instruction ADVANCED MICRO CONTROLS INC Chapter 10 Programming Instructions and Error Codes Read Status Instructions cont d COMMAND Read Setup Tr
25. 0 LDT Interface Module 7700 Functions and Parameters contd 1 4 SET UP PARAMETERS cont d Decimal Point Position Used to fix a decimal point on the Position Full Scale Count Position Offset and Preset Value displays this parameter is for the convenience of someone looking at the display It does not affect the data sent to the processor Preset Value This parameter specifies the value that the Position Function will change to when the Auto Preset feature is used Use the Auto Preset feature to set the Position Function to the correct value when the LDT is at its home or zero position Speed Average Sets the update time of the 7700 s Velocity Function Update time is the amount of time that the Module totals the change in position of the magnet before calculating the velocity of the magnet in Counts per Second Data Format Allows you to choose Binary or BCD format for the data being sent to the PLC Transfer Type Allows you to choose between Block or Single Transfers 7751 only Application Notes The Measurement Unit Parameter is in some ways the fundamental parameter of the 7700 This parameter effects the values that can be entered for the Full Scale Length Full Scale Count and LDT Gradient Parameters Changing the Measurement Parameter resets most other Parameters to their default values The example below shows how to use the Full Scale Length and Full Scale Count Parameters to scale the Position and Velocity
26. 2731 41 2732 7700 Module 7751 7752 Block Length Block Length Fig 8 2 2700 Module Block Length Fig 8 3 7700 Module Block Length Continuous Parameter The Continuous parameter controls how often the Block Transfer Instruction is executed When the Continuous Parameter is set to NO the Block Transfer is executed only on a false to true transition on the rung This means that a non continuous Block Transfer can occur every other scan When the Continuous Parameter is set to YES the Block Transfer will occur when the BT Instruction is first scanned and then every scan thereafter until an error in communication occurs Block Transfer Writes to an AMCI Module MUST have the Continuous Parameter set to NO Continuously writing Program Instructions to the module will shorten the life of the E2PROM memory and the module will eventually give an EZPROM ERROR message See Status Indicators Chapter 2 for more information Enable EN Error ER and Done DN Bits Used to signal the start and finish of a Block Transfer the processor sets the EN bit to start the transfer and after successfully completing the transfer the module sets the DN bit If an error occurs in the transfer the module will set the ER bit instead of the DN bit The EN ER and DN bits are located in the first word of the Control File The EN Bit is bit 15 the ER Bit is bit 12 and the DN Bit is bit 13 8 2 ADVANCED MICRO CONTROLS INC Chapter 8 PLC 5 Block Tran
27. Fig 3 1 Module Installation 2 imde ete oe Rer eet 3 1 Fig 3 2 GC 1 Grounding Clamp Installation 3 2 Chapter 5 AMCI Module Addressing Lig 5 1 2 Slot Addressing sanete eei ete a eene 5 1 Eig e e 5 2 Lig 3 3 Slot Addressine pai tir 5 2 Eig 5 4 BT Module Address iine olga iii lies 5 2 Fig 5 5 Modules 2 Slot Address eese eene nennen 5 3 Fig 5 6 Modules 1 Slot Address eee eren enne 5 4 Fig 5 7 Modules Ya Slot Address ii 5 4 ADVANCED MICRO CONTROLS INC V Series 7700 List of Figures Chapter 6 PLC 2 Block Transfer Instructions Fig 6 1 First Memory Location of T C Accumulated Register Memory 6 1 Fig 6 2 1700 Module Block Length eee 6 2 Fig 6 3 2700 Module Block Length ee ee ee Ge Ge nennen 6 2 Fig 6 4 7700 Module Block Length ee ee ee Ge Ge Ge nennen enne 6 2 Fig 6 5 PLC 2 Programming Example eene eene nnne 6 3 Chapter 7 PLC 3 Block Transfer Instructions Fig 7 1 1700 Module Block Length eene nennen 7 1 Fig 7 2 2700 Module Block Length eere rennen nennen 7 2 Fig 7 3 7700 Module Block Length ee ee ee Ge Ge rennen nennen 7 2 Fig 7 4 PLC 3 Programming Example es se ee se ee Ge Ge GR rennen nennen 7 3 Chapter 8 PLC 5 Block Transfer Instructions Fig 8 1 1700 Module Block Length eese nennen 8 2 Fig 8 2 2700 Module Block Length
28. IES Oo rr I EI d PRG RUN FAULT Fig 2 13 Decimal Point as inches or millimeters Changing this parameter will reset all parameters except LDT Type and Speed Average to their default values If you are using a 7752 Module the Measurement Unit parameter for the additional transducer is sequentially available by pressing the NEXT Key The A Indicator LED on the display indicates transducer 1 while the B Indicator LED indicates transducer 2 The Measurement Unit parameter for the two LDT s can be different LDT Gradient Parameter This is a calibration parameter sup plied by the LDT manufacturer The value of the LDT Gradient is printed on the head of the transducer AMCI and Balluff specify the Gradient in meters second MTS specifies it in uSec inch if the LDT s length is specified in inches or uSec millimeter if the LDT s length is specified in millimeters The Measurement Unit Parameter see above should be programmed appropriately before this parameter is entered If this parameter is not programmed to be equal to the value printed on the transducers head the 7700 will not calculate accurate distances AMCI and Balluff specify the Gradient Value to six figures while MTS specifies it to five places If you use a Temposonics II LDT set the last digit to zero If you are using a 7152 Module the LDT Gradient parameter for the additional transducer is sequentially available by pressing the NEXT Key The
29. Keyboard Use this instruction to counteract a previous Disable Programming Keyboard Programming Instruction See Program Switch Pg 2 9 for more information Clear Errors Use this instruction to clear errors generated because of improper Program Instruction syntax See Error Codes Pg 10 9 for more information Enter Read Status Enter this mode to read the values of the programmable Mode parameters Use this mode when debugging your system or to verify that program changes have not been made from the keyboard When in this mode the eighth bit of the Status Word MSB of Hardware Errors Byte is set to a one Exit Read Status Use this instruction to leave Read Status Mode When this Mode command is issued the module will transmit position and velocity data to the PLC 10 2 ADVANCED MICRO CONTROLS INC Chapter 10 Programming Instructions and Error Codes Transducer Instructions COMMAND COMMAND WORD COMMENTS Store Setup X 0 3 Use this instruction to change LDT Type Transducer 1 DPM Recirculations Measurement Unit Decimal Point Speed Average Data Format and LDT Gradient parameters Digit X 0 L Mode Parameters LDT Gradient Bit Set to 1 2 Store New Parameter Bit Set to 0 Leave Parameter as is Example 8901h Store new Mode Parameters The new values of the parameters are stored as Data Words immediately after the Command Word Mode Parameters New Mode Parameters are store
30. LS INC Chapter 3 Installation Cable Installation Cables can be ordered directly from the LDT manufacturer Optionally MTS specifies BELDEN 8105 for use as an extension cable Cable Prints are at the back of this manual The following table lists print numbers and page numbers to refer to based on module and transducers types 7751 7152 AMCI Balluff B1241 P 3 B1242 P 4 Temposonics II B1178 P 4 B1177 P 5 ADVANCED MICRO CONTROLS INC 3 3 Chapter 3 Installation Notes 3 4 ADVANCED MICRO CONTROLS INC Chapter 4 Keyboard Programming This chapter offers examples on how to program the Series 7700 modules Unless noted all programming examples are applicable to all Series 7700 Modules Before any of the Series 7700 s parameters can be programmed the module must be in Program Mode Program Switch set ON See Program Switch Pg 2 9 for more information When the module is in this mode the yellow PRG light on the front panel is lit Conventions The following conventions are used when describing the keystrokes needed to program the different parameters KEY Used to show the key pressed on the module The key s name will be inside the brackets If an asterisk appears before a key Example FUNCTION the key must be pressed until the display matches what is shown in the instructions If a X and a number follow a key Example A 1X3 the key must be pressed the shown number of times In this exam
31. PRESS IND LEDS DISPLAY COMMENTS V ENTER A Unit d Value stored in E2PROM Blinking Cursor removed 4 4 ADVANCED MICRO CONTROLS INC Chapter 4 Keyboard Programming Setup Parameters cont d LDT Gradient The LDT Gradient is the velocity at which the return pulse propagates down the length of the transducer shaft The value of the LDT Gradient varies from transducer to transducer It s value is printed on the label of the LDT In this example the LDT Gradient printed on the labelof a Temposonics II is 8 9986 uSec per Inch Presently the default value of 9 03000 is stored in memory PRESS IND LEDS DISPLAY COMMENTS V gt IV gt W1X4 gt W1X2 gt W1X4 Value stored in E2PROM ENTER SF A 8 99860 Blinking Cursor removed Decimal Point Position You want to program a Decimal Point so that the last two digits on the position display are after it The parameter presently has it s default setting of 0 PRESS IND LEDS DISPLAY COMMENTS De m gu uum A X2 ENTER A dip i2 Value stored in E2PROM Blinking Cursor removed Preset Value You want to program a Preset Value of 25000 Counts Presently the default value of zero is in memory PRESS IND LEDS DISPLAY COMMENTS AD2 gt W1X5 SF O A 25000 Value stored in E2PROM ENTER Blinking Cursor removed ADVANCED MICRO CONTROLS INC 4 5 Chapter 4 Keyboard Programming Setup Parameters cont d Speed
32. SERIES 7700 INTELLIGENT LDT INTERFACE MODULE USER S MANUAL Catalog Number 7700 195M POS TAC SF O A B C D Wa ei psp This manual is written to explain the operation of the following AMCI Modules for the Allen Bradley 1771 VO 7732 m Y y MAMII General Information Important User Information The products and application data described in this manual are useful in a wide variety of different applications Therefore the user and others responsible for applying these products described herein are responsible for determining the acceptability for each application While efforts have been made to provide accurate information within this manual AMCI assumes no responsibility for the application or the completeness of the information contained herein UNDER NO CIRCUMSTANCES WILL ADV ANCED MICRO CONTROLS INC BE RESPONSIBLE OR LIABLE FOR ANY DAMAGES OR LOSSES INCLUDING INDIRECT OR CONSEQUENTIAL DAMAGES OR LOSSES ARISING FROM THE USE OF ANY INFORMATION CONTAINED WITHIN THIS MANUAL OR THE USE OF ANY PRODUCTS OR SERVICES REFERENCED HEREIN Throughout this manual the following two notices are used to highlight important points MW ARNING WARNINGS tell you when people may be hurt or equipment may be damaged if the procedure is not followed properly CAUTIONS tell you when equipment may be damaged if the procedure is not O CAUTION followed properly No patent liability is assumed by AMCI with respect to use of
33. STED PARAMETER VALUE Word 7 SIXTH REQUESTED PARAMETER VALUE Word 8 SEVENTH REQUESTED PARAMETER VALUE STATUS Software Errors Hardware Errors Fig 10 2 Read Status Data Format If a Read Setup or Read Parameter Transducer 1 2 Instruction is used it MUST be the last instruction in a BTW file If any instruction follows one of these a Programming Error will result Therefore Read Status Mode cannot be entered and exited with one BTW file of Instructions Only Read Setup or Read Parameter Transducer 1 2 Instructions are echoed back to the PLC All other Instructions can still be executed All requested parameters are echoed back in BCD format Note that a 7751 transmits only words 1 through 4 and Status The parameters can be read from the module one axis at a time For example you cannot read the Full Scale Length of Transducer 1 and the Position Offset of Transducer 2 with one Instruction Therefore reading all of the parameters from a 7751 Module would require 4 Block Transfer Read Write cycles The first places the module in Read Status Mode and transmits the Setup Parameter values for the first transducer The second and third Block Transfer cycles transmit the other Parameters of the 7751 and the fourth Block Transfer cycle exits Read Status Mode Likewise a 7752 requires 5 Block Transfer cycles If a word is not used to transmit a parameter value it equals 0000h When in Read Status Mode the eighth bit of the Status Word
34. ansducer 2 Read Parameters Transducer 2 COMMAND WORD COMMENTS X 0 3 Not available with the 7751 Use this Program Instruction to read the values of the parameters written to the module with the Store Setup Transducer 2 Program Instruction The format of the Command Word written to the module and the format of the Data Words read from the module are the same as the Store Setup Transducer 2 Program Instruction X 0 F Not available with the 7751 Use this Program Instruction to read the values of the parameters written to the module with the Store Parameters Transducer 2 Program Instruction The format of the Command Word written to the module and the format of the Data Words read from the module are the same as the Store Parameter Transducer 2 Program Instruction ADVANCED MICRO CONTROLS INC 10 7 Chapter 10 Programming Instructions and Error Codes Read Status Data Format The format of the data sent to the PLC when in Read Status Mode is given below Notes 10 8 Hex Bit 11511413 12 11 10 09 08 07 06 05 04 03 02 01 00 Octal Bit 17 16 15 14 13 12 11 10 07 06 05 04 3 02 01 00 W ord 1 ECHO OF LAST READ PARAMETERS COMMAND Word 2 FIRST REQUESTED PARAMETER VALUE Word 3 SECOND REQUESTED PARAMETER VALUE Word 4 THIRD REQUESTED PARAMETER VALUE Word 5 FOURTH REQUESTED PARAMETER VALUE W ord 6 FIFTH REQUE
35. ansducer and module for fault conditions Sealed display and keyboard for quick program changes during setup or position and velocity data monitoring Series 7700 Family Members The following make up the line of Series 7700 LDT Interface Modules Potential future mem bers may have higher resolution compatibility with different manufacturers of LDT s or more than two transducer inputs per module 7751 One transducer interface 0 001 resolution 100 000 Counts 7752 Two transducer interface 0 001 resolution 100 000 Counts ADVANCED MICRO CONTROLS INC 1 1 Chapter 1 Introduction to the 7700 LDT Interface Module Magnetostrictive LDT Description 1 2 Magnetostrictive LDT s rely on a phenomenon known as the Wiedemann Effect All ferromag netic metals such as iron and nickel display this phenomenon A ferromagnetic metal forms a magnetic field around it whenever it conducts an electrical current If this field interacts with a second magnetic field the metal will physically twist This twist then travels along the metal in the same fashion as a ripple in water Figure 1 1 shows a typical LDT The waveguide is a hollow tube made from a ferromagnetic metal Threaded through the waveguide is a wire that carries the current pulse from the head of the LDT Using a second wire to carry the current pulse instead of the waveguide increases the accuracy and repeatability of the system Also located in the head of the LDT Picku
36. ater than 60 000 If the Position data is negative or greater than 60 000 the hexadecimal value FFFOj is transmitted to the PLC If there is a Transducer or Power Supply Fault the hexadecimal value FFFFy is transmitted to the PLC 9 2 AMIGE Chapter 10 Programming Instructions and Error Codes Programming Structure You can use your ladder logic to program the 7700 Module This is done by transferring Program Instructions from the PLC to the module with the BTW Instruction Each Program Instructions is made up of one or more 16 bit words The first word of every Program Instruction is the Command Word The Command Word tells the module what action to take This may be changing the value of the Scale Factor or Preset Value or disabling the modules Program Switch The additional words of a Program Instruction are the Data Words They contain the new values of the parameters i e the new Scale Factor or Preset Value The number of Program Instructions that can be sent to the Module at one time is limited only by the size of the block of words that you transmit With the Block Transfer Write Instruction you are limited to 64 Words Figure 10 1 shows the conceptual format of a group of Program Instructions Command W ord First Data Word Last Data W ord Command W ord Command W ord First Data Word Last Data Word Y Last Command or Data Word P
37. ays is available on all of the 7700 Modules Please note that a shaded LED indicator is not lit in the display POS TAC SF O A i e D PLC SERIES PRG RUN FAULT Fig 2 2 Position Display POS TAC SF O A B e D Coe ee II PLC SERIES RUN FAULT Fig 2 3 Velocity Display POS TAC SF O A B C D LOCH PLC SERIES PRG RUN FAULT Fig 2 4 Count Direction Position Data Display This display shows the current position of the magnet along the LDT s shaft It s value is based on the displacement from a programmed zero point Maximum Minimum value is 499 999 If the Position Data becomes greater than 99 999 the Position display will change to End If the Position Data becomes less than 99 999 the Position Display will change to End If you are using a 7752 Module the Position Data Display for the additional transducer is sequentially available by pressing the NEXT Key The A Indicator LED on the display indicates transducer 1 while the B Indicator LED indicates transducer 2 Position data is available to the Processor Velocity Data Display This display shows the velocity of the magnet along the LDT s Shaft in Counts Second The time between updates which is the time it takes to determine the new velocity and show it on the display is set by the Speed Average Parameter If you are using a 7752 Module the Velocity Data Display for the additional transducer is sequentially available by pressin
38. but only 40 inches of the probes length will be used Instead of entering the length of the LDT you can enter the distance that the LDTs magnet will travel In this case it simplifies the calculations needed to determine the Full Scale Count PRESS IND LEDS DISPLAY COMMENTS gt X2 A X3 gt A L 0040 Value stored in E2PROM A X4 ENTER Blinking Cursor removed Full Scale Count In most applications the Full Scale Count is simply the Full Scale Length multiplied by a power of ten This gives a position value that reads out directly in the desired unit of length This is not the case for the example in Application Notes where the Position Function reads out in hundredths of gallons 250 Gallons multiplied by 100 Counts per Gallon equals 25000 Counts PRESS IND LEDS DISPLAY COMMENTS FUNCTION 40000 Default for 40 Length w1X2 gt A X5 SF A 25000 Value stored in E2PROM ENTER Blinking Cursor removed Position Offset The Position Offset is used to change the value of the Position Function without moving the LDTs magnet There is a True Position that the 7700 reads from the LDT This position is the distance between the magnet and the pickup coils in the LDTs head Due to the manufacturing process the True Position can vary from probe to probe by a small amount The value of the Position Function is equal to the Position Offset added to the True Position Note that the signs of the Position Offse
39. chip The module then waits for the next interrupt before again writing to the TIC chip Because of this the position data available to the processor is 1 scan time behind the actual transducer position In most applications this does not cause a significant error but if your application involves high transducer speeds or long scan times this delay can be avoided by placing two back to back Immediate Input Instructions in your ladder logic Data Corruption occurs when 1 The PLC reads one byte of old position data 2 The module updates the position data 3 The PLC reads one byte of the new position data For example if the old position data is 07FFh and the new position data is 0006h the PLC will read 0706h as the position data ADVANCED MICRO CONTROLS INC 5 5 Chapter 5 AMCI Module Addressing Notes 5 6 ADVANCED MICRO CONTROLS INC GI Chapter 6 PLC 2 Block Transfer Instructions Overview Most PLC 2 processors have Block Transfer Instructions in their instruction sets There are four parts to PLC 2 BT Instructions They are Data Address Address in the PLC 2 s Timer Counter Accumulated Registers where the Module Address is stored Module Address The I O Rack Group and Slot Numbers where the module is located Block Length Number of PLC 2 memory locations needed to store information read from or written to the AMCI Module File Address Starting and ending addresses in PLC 2 memory where the data
40. completing the transfer the module sets the DN bit If an error occurs in the transfer the module will set the ER bit instead of the DN bit The LE ER and DN bits are located in the first word of the Control File A Control File has one set of bits for a BTR and a second set for a BTW For a BT Read the LE Bit is bit 12g the ER Bit is bit 13g and the DN Bit is bit 15g For a BT Write the LE Bit is bit 02g the ER Bit is bit 03g and the DN Bit is bit 05g The LE ER and DN bits should be used in the program to buffer the data from the module This is done be enabling a file to file move when the DN bit is set This will prevent the program from using position data from the module that may be incorrect There are other BT control bits in the Control File that may help you troubleshoot your system Refer to your PLC 3 Programming Manual for further information 7 2 ADVANCED MICRO CONTROLS INC Chapter 7 PLC 3 Block Transfer Instructions Programming Example The following example assumes 1 Slot addressing and an AMCI Module in I O Rack 4 VO Group 7 of the system BTR Instruction to the AMCI Module The Block Transfer Read will automatically execute every other scan because it is enabled by the DN bit Rung 1 Rung 2 Rung 3 Rung 4 Rung 5 When the BTR is completed the DN bit energizes the File to File Move that buffers data from the AMCI Module The program uses data at addresses FNO14 0005 9 in the rest of the pro
41. d Only the number of words transmitted by the 1700 Module is the second number listed in the following table 1700 Module 1731 41 1732 42 1733 43 1734 44 1761 1762 1763 Block Length 3 2 5 4 7 6 9 8 4 3 7 6 5 4 Fig 7 1 1700 Module Block Length ADVANCED MICRO CONTROLS INC 7 1 Chapter 7 PLC 3 Block Transfer Instructions File Length cont d The tables below list the number of words transmitted by a 2700 or 7700 module when a BTR Instruction is executed Chapter 9 Data Format gives the format of the transmitted data 2700 Module 2731 41 2732 7700 Module 7751 7752 Block Length Block Length Fig 7 2 2700 Module Block Length Fig 7 3 7700 Module Block Length Control File The Control File is the 10 word long file that controls the actual transfer of data The address that you enter into the BT Instruction if the first address of the file The Control File MUST have a Binary data type Each AMCI Module requires its own Control File The Control File can be used to control both BT Reads and BT Writes to the module Unlike Data Files a Control File is automatically made by the program loader when you enter the address of the Control File The Control File contains all of the information entered by the Instruction along with the Control Bits Latch Enable LE Error ER and Done DN Bits Used to signal the start and finish of a Block Transfer the processor sets the LE bit to start the transfer and after successfully
42. d by AMCI 24 Hour Technical Support Number 24 Hour technical support is available on this product For technical support call 860 583 7271 ADVANCED MICRO CONTROLS INC AMG Series 7700 Table of Contents General Information Important User Information Inside Front Cover standard Warranty miie arne RD RR ee eR ies Inside Front Cover Returns Policy ca e eeh i lr perte e easels Inside Front Cover 24 Hour Technical Support Number Inside Front Cover Chapter 1 Introduction to the 7700 LDT Interface Module The Series 7700 LDT Interface Modules AAA 1 1 series 7700 Family Members ci eerte e tei EE ee HE Se De Seks T be ee 1 1 Magnetostrictive LDT DeScription nono nono nocon nc no nono rennen nennen 1 2 7700 Functions and Parameters eene eren nennen nter 1 3 F nctons eien EE OE OR N OR N 1 3 scaling Parameters J o in SR EE A eer Eee dee 1 3 Set up Parameters ili anal eg tn ettet ete ens 1 3 Application Notes 1 nee eii ete em septies edente OE DE 1 4 Chapter 2 Series 7700 Module Description Eront Panel Description 4 eem eee iode ote 2 1 Function and Parameter Displays see ee Ge Ge AG AA nnne 2 2 Position Data Display e oe RR Ud e Res 2 2 Velocity Data Display iii Ret ete p ined 2 2 Count Direction Parameter sse nennen nennen nennen 2 2 Pull Seale Length Parameter 2 iere tet ib e e HE t bien 2 3 Full Scale Count Parameter irooniat a eoe E E EEE o EENS 2 3 Position Offse
43. d in one word The Data Word format is shown below Bit Numbers 15 14 13 12 11 10 09 08 07 06 05 04 03 02 BCD Digit BCD Digit BCD ess l Decimal Point Connection Type Speed Average DPM Recirculations Data Format LDT Type Measurement Unit Connection Type Bit 1 RPM Personality Module Bit 0 DPM Personality Module DPM Recirculations Valid Numbers are 1 2 and 4 LDT Type 00 AMCI LHT Series Transducers 01 Balluff Transducers 10 MTS Temposonics II Transducers If LDT Type is not Temposonics Bits 12 15 are not read Measurement Unit Bit 2 0 Inches Bit 1 Millimeters Data Format Bit 0 Binary Format 1 BCD Format Decimal Point Sets number of digits to right of decimal point Valid Numbers are 1 through 4 Speed Average 0 32 mSec Response 1 2 60 mSec Response 2 120 mSec Response 3 240 mSec Response ADVANCED MICRO CONTROLS INC 10 3 Chapter 10 Programming Instructions and Error Codes Transducer Instructions cont d COMMAND COMMAND WORD COMMENTS Store Setup LDT Gradient Parameter Transducer 1 The LDT Gradient Parameter requires two Data Words cont d and is stored in BCD format The format of the words is shown below 0 0 Upper 3 digits LDT Gradient 0 0 Lower 3 digits LDT Gradient Programming Example Set the module for a Temposonics II LDT with a RPM Pe
44. e Controller System In PLC 2 systems the first I O Rack is assigned the number 1 In PLC 3 or PLC 5 systems the first VO Rack is assigned the number 0 Each I O Rack is further divided into 8 I O Groups VO Group Eight I O Groups make up 1 I O Rack The eight I O Groups of each I O Rack are assigned the numbers 0 through 7 Each slot in a chassis is assigned Y2 1 or 2 VO Groups You do this when you select which Slot Addressing to use in the chassis Slot Addressing There are 3 different slot addressing schemes used by Allen Bradley They are 2 Slot 1 Slot and 2 Slot Addressing 1 0 Grou Number P 4 O Rack Number 0 OE FTA DEE TE DE DEL DEE DE DE DERS With 2 Slot Addressing 1 I O Group is E i i 2 IG assigned to a slot pair in the chassis A slot pair is made up of the two slots under a single module locking latch The first slot of the pair is given the Module Slot Number 0 The second slot of the pair is given the Module Slot Number 1 iur 1 1 1 UT w w SI Module Slot Numbers Fig 5 1 2 Slot Addressing ADVANCED MICRO CONTROLS INC 5 1 Chapter 5 AMCI Module Addressing Module Adaressing cont d Slot Addressing cont d 1 0 G he
45. e 7752 Module the Preset Value parameter for the additional transducer is seguentially available by pressing the NEXT Key The A Indicator LED on the display indicates transducer 1 while the B Indicator LED indicates transducer 2 The Auto Preset feature is most commonly used to set the Position Function to the correct value when the LDT is at its home or zero position Speed Average Parameter This parameter sets the update time of the 7700 s Velocity Function Update time is the amount of time that the Module totals the change in position of the magnet before calculating its velocity in Counts per Second Programma ble values for this parameter are 32 60 120 and 240 mSec If you are using the 7752 Module the Speed Average Parameter for the additional transducer is sequentially available by pressing the NEXT Key The A Indicator LED on the display indicates transducer 1 while the B Indicator LED indicates transducer 2 Data Format Parameter The Data Format Parameter allows you to choose the format of the Position and Velocity data that is sent to the PLC The two choices are Binary and BCD Transfer Type Parameter Available with single channel mod ules only the Transfer Type Parameter allows you to choose between Block or Single Transfers When you choose Block Transfer both the Position and Tachometer data is available to the PLC When you choose Single Transfer the module appears to be a 16 bit input
46. e Rev F or later Using a Remote I O Adapter that has an earlier Series or Firmware may not work properly with a BT Module When using a single channel Transducer Interface Module 1731 41 7751 as a Single Transfer Module the chassis that contains the module MUST be set up for 1 slot or Ya slot addressing 2 Slot addressing will not function properly This is because of the restrictions imposed by the Allen Bradley TIC chip Block Transfers can take place on all four I O Scanners simultaneously However if you use the number one 1775 S4A or SR scanners only 72 words can be transmitted on all four VO Channels at one time When a BT Instruction is enabled but produces an error or does not complete the most common problems are an incorrect Module Address or a missing Data File You must create the Data File from your program loader before the program can be executed Because a Block Transfer is enabled only on False to True transitions it can be requested at most every other scan The programming example on page 7 3 shows how you can do this automatically by using the EXAMINE OFF Instruction to check the status of the DN bit When the PLC 3 is powered up it may be necessary to write a value of 0000 to the first word of the Control Block before enabling the Block Transfer This will clear all of the BT control bits This should be necessary on power up only not every time a Block Transfer is requested ADVANCED MICRO CONTROLS INC GI C
47. ed to Write Program Instruction to the 7700 while it was reporting a Software Error Invalid Transducer 248cp You attempted to write parameters for transducer 2 to a Number 7751 Module Invalid Mode 25BCD You sent a Read Parameters Instruction to the module when it is not in Read Status Mode Invalid Parameter Occurs if a Read Parameter Instruction requests more Number parameter values then the BTR file can transmit See Read Status Data Format Note 4 Pg 10 8 for more information 10 10 ADVANCED MICRO CONTROLS INC Chapter 10 Programming Instructions and Error Codes Error Codes conta Software Errors cont d ERROR ERROR CODE WORD COMMENTS Invalid Full Scale 318cp Occurs when the specified value for the Full Scale Length Length Parameter is out of range Invalid Full Scale 32ncp Occurs when the specified value for the Full Scale Count Count Parameter is out of range Invalid Position 33BCD Occurs when the specified value for the Position Offset Offset Parameter is out of range Invalid Position 348cp Occurs when the specified value for the Position Preset Preset Parameter is out of range Invalid LDT 4lpgcp Occurs when the specified value for the LDT Gradient Gradient Parameter is out of range Invalid Speed 42ncp Occurs when the specified value for the Speed Average Average Parameter is out of range Invalid DPM A3BCD Occurs when the specified value for the DPM Recircu Recirculations lations Parameter is out of ran
48. g the NEXT Key The A Indicator LED on the display indicates transducer 1 while the B Indicator LED indicates transducer 2 Velocity data is available to the Processor Count Direction Parameter Sets the direction relative to the head of the LDT that the magnet must travel to increment the Position Data When the Count Direction is positive P on the display the Position Function will increment when the magnet travels away from the LDT s head When the Count Direction is negative n on the display the Position Function will increment when the magnet travels towards the LDT s head If you are using a 7752 Module the Count Direction Parameter for the additional transducer is sequentially available by pressing the NEXT Key The A Indicator LED on the display indicates transducer 1 while the B Indicator LED indicates transducer 2 ADVANCED MICRO CONTROLS INC Chapter 2 Series 7700 Module Description Function and Parameter Displays cont d Full Scale Length Parameter Programmable in inches or milli POS TAC SF O A B C D PLC SERIES PRG RUN FAULT Fig 2 5 Full Scale Length POS TAC SF O A B D GT PLC SERIES IL FILI Ib Lii PRG RUN FAULT Fig 2 6 Full Scale Count POS TAC SF O A B C D im fs si III PLC SERIES Iri LIL PRG RUN FAULT Fig 2 7 Position Offset meters this parameter is the distance that you expect the magnet to travel Maximum values of this
49. ge Invalid Decimal 44ncp Occurs when the specified value for the Decimal Point Point Parameter is out of range ADVANCED MICRO CONTROLS INC 10 11 An A AN FY j A IGI ADVANCED MICRO CONTROLS INC PLYMOUTH INDUSTRIAL PARK TERRYVILLE CT 06786 TEL 860 585 1254 FAX 860 584 1973
50. gram The BT Write is enabled whenever CRI is latched on CRI is latched on when a BTW Request is made CRI in unlatched when the BTW Request is removed and the BTW Done bit is set BTR Done BLOCK XFER READ LE l RACK 004 Di MODULE 0 LOW DN DATA FNO14 0000 Y LENGTH 5 CNTL CNTL FB005 0000 ER 13 BTR MVF pw FILES FROM A TO R EN UN 12 A FN014 0000 OAL IDN R FNO14 0005 d COUNTER C0012 C0024 POS LEN 0 5 ER MODE ALL SCAN 13 CRI BLOCK XFER WRITE LE RACK 004 i MODULE 0 LOW DN DATA FN015 0000 05 LENGTH 23 CNTL CNTL FB005 0000 ER 03 BTW Request CR1 L BTW Request BTW CR1 MI U DN Fig 7 4 PLC 3 Programming Example ADVANCED MICRO CONTROLS INC 7 3 Chapter 7 PLC 3 Block Transfer Instructions PLC 3 Restrictions and Warnings 7 4 The following restrictions and warnings must be followed when NW A R N N G using a BT Module in a PLC 3 System If these restrictions are not followed unpredictable operation may occur It is important to have an AMCI Module installed in a single slot pair see Installing the Module Chapter 3 Doing this will avoid any potential addressing conflicts when using an AMCI Module and 16 pt modules with 2 Slot addressing or 32 pt modules with 1 Slot addressing When using an AMCI Module as a Block Transfer Module the Remote I O Adapter must be a 1771 ASB Series B Firmwar
51. h K2 output option MTS Temposonics Il LDT with RPM or DPM Personality Modules Transducer Input Optically Isolated 1500 Vac Number of Recirculations 1 Resolution x 0 01 2 Resolution 0 01 and 0 002 4 Resolution 2 0 002 and x 0 001 Programmable Parameters Count Direction Full Scale Length Full Scale Count Position Offset Connection Type DPM Recirculations Measurement Unit LDT Gradient Decimal Point Position Preset Value Speed Average Data Format Transfer Type Measurement System Programmable to inches or millimeters Position Resolution To 0 001 inches LDT Length 99 To 0 010 inches LDT Length 650 Position Offset Programmable to any point on LDT s length Used to set the reference point on the LDT Velocity Data Response Time Programmable to 32 60 120 or 240 mSec Velocity Data Resolution Determined by and identical to the Position Resolution Velocity Data Range 0 to 99999 Counts sec Data Transfer Programmable for BTR or Single Transfers Data Available to Processor Magnet Position Magnet Velocity and Fault Diagnostics Program Input Modules self contained display and keyboard or BTW from Processor Program Storage E2PROM Memory DC Supply Voltage from Backplane 5 Volts 1 45A max 7752 Module Module 5Vdc Supply Fuse 2A Fast Blow Littelfuse 225002 Environmental Conditions Operating Temperature 0to 60 C Relative Humidity w o co
52. hapter 8 PLC 5 Block Transfer Instructions Overview All PLC 5 processors have Block Transfer Instructions in their instruction sets There are five parts to PLC 5 BT Instructions They are Module Address The VO Rack Group and Slot Numbers where the module is located Control Block The starting address of the five word block in memory that controls the Block Transfer Data File The starting file address that stores the data written to or read from the module File Length The number of words need edto store the data written to or read from the module Continuous Parameter Determines how often the Block Transfer is carried out Module Address The Module address is the VO Rack Group and Slot Numbers where the module is located in the system The I O Rack Group and Slot Numbers are entered separately in the Block Transfer Instruction Control Block The Control Block is a block of five words that control the actual transfer of data The address entered into the BT Instruction is the first address of the block The Control Block must have an Integer data type and can be its own file or part of a larger file Each BT Instruction requires a separate Control Block This is true even if a BTW and BTR access the same module Data File The Data File is the block of words that stores the information read from or written to the AMCI Module The Data Address is the first address of the file The Data File must ha
53. hen in Program Mode all parameters can be modified The module is not programmable Display Mode PRG light OFF when the switch is pushed towards the front of the module When in Display Mode the Count Direction FS Length FS Count and Position Offset can be examined but cannot be modified AW ARNING Remove system power before l removing or installing a module in gt the I O Rack Failure to observe this warning can result in damage to the module s circuitry and or undesired operation with possible injury to personnel The Program Switch can be disabled by removing the jumper on the two pin header next to the switch Removing this jumper locks the 7700 in Display Mode It is usually good practice to remove this jumper once the system is operational This will prevent someone from accidentally changing the 7700 s parameters while the system is running The only times that changes to the modules programming should be allowed are during set up or trouble shooting a procedures Two Pin Header shown with Jumper installed Program Switch shown in Program Mode position Fig 2 23 Program Switch ADVANCED MICRO CONTROLS INC 2 9 Chapter 2 Series 7700 Module Description Keyboard Description The following table describes what the keys do when you are in Display Mode PRG light OFF or Program Mode PRG light ON When in Program Mode a parameter
54. hown Note the following Only the 1731 41 or the 7751 Modules can use Single Transfers You cannot use Single Transfers if your I O Chassis is set up for 2 Slot Addressing This restriction is imposed by the Allen Bradley TIC chip When using Y2 Slot addressing the I O Group Number used in the address is the lower of the two I O Group Numbers assigned to the slot In all of the following figures the module is placed in a single slot pair Under a single locking latch see Installing the Module Pg 3 1 for more information If the practice of installing an AMCI Module in a single slot pair is followed the Addressing Shortcuts listed next to the figures can be used 1 0 Group Number O Rack Number 0 gt d EDO DEDI GE mERO DB DE DER Module BT Address 041 gt 0 1 2 3 5 6 7 Fc Single Transfer cannot be used by the 1731 41 or 7751 Modules Addressing Shortcuts 1 Slot Number is always equal to 1 Uu HO ima Ol Ol Ol w AAT 1 0101 01 01 01 01 0 1 Module Slot Numbers Fig 5 5 Modules 2 Slot Address ADVANCED MICRO CONTROLS INC 5 3 Chapter 5 AMCI Module Addressing Addressing Examples cont d
55. information circuits equipment or software described in this manual The information contained within this manual is subject to change without notice Standard Warranty ADVANCED MICRO CONTROLS INC warrants that all equipment manufactured by it will be free from defects under normal use in materials and workmanship for a period of 1 year Within this warranty period AMCI shall at its option repair or replace free of charge any equipment covered by this warranty which is returned shipping charges prepaid within one year from date of invoice and which upon examination proves to be defective in material or workmanship and not caused by accident misuse neglect alteration improper installation or improper testing The provisions of the STANDARD WARRANTY are the sole obligations of AMCI and excludes all other warranties expressed or implied In no event shall AMCI be liable for incidental or consequential damages or for delay in performance of this warranty Returns Policy All equipment being returned to AMCI for repair or replacement regardless of warranty status must have a Return Merchandise Authorization number issued by AMCI Call 860 585 1254 with the model number and serial number if applicable along with a description of the problem A RMA number will be issued Equipment must be shipped to AMCI with transportation charges prepaid Title and risk of loss or damage remains with the customer until shipment is receive
56. is stored Data and Module Address The value of the Data Address is the memory location that stores the Module Address Each BT Instruction needs a different Data Address even if you have multiple BT Instructions for one module i e the Module Addresses are the same The value of the Data Address must be the first available memory location in the Timer Counter Accumulated Registers and all Data Addresses MUST come before ANY Timer or Counter Accumulated Registers The number of I O Racks in your system determines the first memory location of the T C Accumulated Registers section in PLC 2 Data Table Figure 6 1 shows the first available memory location based on the number of I O Racks that the processor is configured for E E E TET senes ow o 00 ve oo ov o Fig 6 1 First Memory Location of T C Accumulated Register Memory After all BT Data Addresses have been assigned the next memory location should be loaded with the value 0000 This prevents the PLC 2 from using a timer or counter value as the address of a BT Module by forming a boundary that the PLC 2 will not cross when searching for a Module Address Block Length The Block Length is the number of words needed to store the information read from or written to the AMCI Module When programming a BTR Instruction you can set the Block Length to 00 This will reserve 64 words in the PLC 2 memory but the module will only transmit the number of words necessary When progra
57. ition Offset This parameter changes the value of the Position Function without moving the magnet on the LDT Use it to set the zero or starting position of the magnet along the LDT s length SET UP PARAMETERS These parameters are only available when the module is in Program Mode See Program Switch Pg 2 9 for more information These parameters contain information that usually not changed once the system is running LDT Type This parameter tells the 7700 Module the type of LDT attached to the module If you are using Temposonics I LDT s it also specifies the type of Personality Module installed in its head Presently AMCI Balluff and Temposonics II LDT s are sup ported When using the 7752 Plug in card the two LDTs can be different DPM Recirculations Shown only when a Temposonics II with a DPM module is selected as the LDT Type this parameter tells the module how many Recirculations you have set on the DPM Module Allowable values are 1 2 and 4 recirculations Measurement Unit Specifies the measurement unit for all parameters Set it to the same measurement system used to specify the length of the LDT inches or millimeters LDT Gradient This is a LDT calibration parameter It is the rate at which the return pulse propagates down the transducer s length AMCI and Balluff specify it in meters per second while MTS specifies it in i Seconds per inch ADVANCED MICRO CONTROLS INC 1 3 Chapter 1 Introduction to the 770
58. mming a BTW Instruction the number of words needed depends on the number of Program Instructions that you are writing to the AMCI Module The Block Length of a BTW Instruction MUST equal the number of words used by the Program Instructions Using a Block Length of zero will cause an Invalid Command Error if the number of words used by the Program Instructions is not 64 ADVANCED MICRO CONTROLS INC 6 1 Chapter 6 PLC 2 Block Transfer Instructions Block Length cont d The following tables list the number of words transmitted to the PLC when a BTR Instruction is executed Chapter 9 Data Format gives the format of the transmitted data 1700 USERS To make the present 1700 modules compatible with older versions you must set the Module to Read Only with the PLC Program Parameter If you set the PLC Program Parameter to Read Only the number of words transmitted by the 1700 Module is the second number listed in the following table 1700 Module 1731 41 1732 42 1733 43 1734 44 1761 1762 1763 Block Length 3 2 5 4 7 6 9 8 4 3 7 6 5 4 Fig 6 2 1700 Module Block Length 2700 Module 2731 41 2732 7700 Module 7751 7752 Block Length Block Length Fig 6 3 2700 Module Block Length Fig 6 4 7700 Module Block Length File Address The File Address is the first address in PLC 2 memory where you want to store data that is read from or written to the AMCI Module The PLC programming software calculates the ending address based on
59. module and Position Data only is available to the PLC NOTE When you change between the two modes the module must have power cycled to it to re initialize the A B TIC chip ADVANCED MICRO CONTROLS INC Status Indicators Chapter 2 Series 7700 Module Description There are three single LED indicators below the alpha numeric display that show the operating status of the module Status information is also sent to the PLC PRG This yellow light is on when the module is in Program Mode While in Program Mode all of the parameters can be inspected and altered from the keyboard RUN A blinking green light indicates that the module is powered and operational FAULT This red light is on when the module recognizes a fault condition The type of fault is shown on the alpha numeric display The Series 7700 Modules recognize three types of faults POS TAC SF O A B e D PLC SERIES Eri l PRG RUN FAULT Fig 2 18 Transducer Fault POS TAC SF O A B e D PS ae be Hard EECH ES PLC SERIES PRG RUN FAULT Fig 2 19 E2PROM Fault Error Class 1 Transducer Fault This message is shown only when the module is displaying the Position or Velocity Data Functions The Parameters will be displayed normally This error 1s automatically cleared by the 7700 once the LDT responds to Interrogation pulses There are four major causes of this fault Magnet in Null or Dead Zone of LDT Incorrect LDT Type
60. n for specifics on configuring the module The 7700 Series require that the DPM be configured for External Interrogations and four recirculations Switches 1 and 2 on the DPM are used to set the Intergation source and the number of recirculations Switch 1 SW1 must be set to position 4 Switch 2 SW2 must be set to position 8 Transducer Mounting Refer to the documentation you recieved with your LDT to properly mount the transducer Grounding Clamp The shield of the Transducer Cable must be attached to the chassis with a Grounding Clamp AMCI part number GC 1 in order to provide a low impedance path to ground for any EMI radiation that may be induced into the cable The drain wire from the Grounding Clamp must be connected to pin 4 of the MS 8 or MS 14 Transducer Input Connector Pin 13 of the MS 14 connector is internally connected to pin 4 and does not need an additional wire li el St ei Ui e Mame sla N ID GROUNDING CLAMP O LU mg LO Fig 3 2 GC 1 Grounding Clamp Installation 3 2 ADVANCED MICRO CONTRO
61. ndensation 5 to 9596 Storage Temperature 40 to 85 Connector Keying Between 28 and 30 Between 34 and 36 ADVANCED MICRO CONTROLS INC AA HB mum Chapter 3 Installation Power Requirements A Series 7700 Module draws it s power from the I O Chassis backplane 5 Vdc Supply The maximum current draw by a 7700 Module is 1 45 Amps Add this to the power requirements of all other cards in the chassis to avoid exceeding backplane or supply capacity Installing the Module Remove system power before removing or installing a module in the I O AW ARNING Chassis Failure to observe this warning can result in damage to the module s circuitry and or undesired operation with possible injury to personal When the module is installed it should be placed in a single slot pair within the chassis Doing this will help you avoid addressing conflicts between the 7700 Module and a 16 bit I O Card when using 2 Slot addressing or a 32 bit I O Card when using 1 Slot addressing A slot pair is made up of the two slots under each module locking latch Figure 3 1 shows two 7700 Modules The module on the left is correctly installed in a single slot pair while the module on the right is incorrectly installed in two slot pairs
62. nnen nennen nennen 8 4 Chapter 9 Series 7700 Data Format Block Transfer Data Format i ee toe esa De eroe el eee Resa e Pa eeu TES 9 1 Status Bits A A Es duin 9 1 INQLES bo GEE ED EE N I a ERN RR 9 1 Hardware Errors s ie Ra re ert eere esee Lana rio as Giara 9 2 IER KAREN 9 2 Single Transfer Data Format nennen nennen nnne enne 9 2 Notessand RestrictIOnS ec 9 2 Chapter 10 Programming Instructions and Error Codes Programming Structure Ee ESE genet e Eod eere e drid ee den etae 10 1 Program Instructions tit teneo pea epe eei eee tete ets 10 2 Module InStEOGUONS seser EE Ee AE Se De oe Ge ee 10 2 Transducer Instructions 5 1 nct La ilarit 10 3 Read Stat s Instructions EE ES EE 05 as ee 10 6 Read Status Data Format rete ene br reete nennen cerae CHER Fe Gees eN ED sd 10 8 Error Codes aura se Ee Li id 10 9 Hardware RR 10 9 KR E EE 10 10 ADVANCED MICRO CONTROLS INC iii Series 7700 Table of Contents Prints B1068 Rev A Series 1700 Outline Drawing iii P 1 A1071 GC 1 Grounding Clamp 7700 esee P 2 B1241 C1TL x Transducer Cable Drawing eee P 3 B1242 C2TL x Transudcer Cable Drawing ii P 4 B1178 Temposonics 1 Axis Wiring Diagram eee P 5 B1177 Temposonics 2 Axis Wiring Diagram eee P 6 ADVANCED MICRO CONTROLS INC Series 7700 List of Figures Chapter 1 Introduction to the 7700 LDT Interface Module Fig 1 1 Typical Magnetostrictive LDT
63. odule in a chassis that uses a Remote I O Adapter the I O Adapter must be a 1771 ASB Series B Firmware Rev F or later Using a Remote I O Adapter that has an earlier Series or Firmware Revision may not work properly with a BT Module 5 4 ADVANCED MICRO CONTROLS INC Chapter 5 AMCI Module Addressing Single Transfer Restrictions and Warnings 1 When using a 1731 41 or 7751 as a Single Transfer Module the chassis that contains the module CANNOT be set up for 2 Slot addressing This is because of restrictions imposed by the Allen Bradley TIC chip If you change the Transfer Type Parameter on a 1731 41 or 7751 you MUST cycle power to the chassis that contains the module to re initialize the A B TIC chip If you have a system that presently uses a 1731 41 or 7751 as a BT Module and you are chang ing the system to use it as a Single Transfer Module you must remove all BT Instructions from your program that address the Module BT Instructions write information in the Input and Output Data Tables that may corrupt the data being transferred by the module The 1700 modules and A B PLCs read data from the TIC chip one byte at a time Therefore it takes two memory read or write cycles to transfer one 16 bit word of data In order to prevent data corruption the TIC chip is setup to interrupt the module when the PLC has read a complete word of data The module accepts this interrupt immediately and write the latest position data to the TIC
64. ogrammable Parameters with Block Transfer Write BTW Instructions A BT module s address is made up of three numbers They are the I O Rack Number the I O Group Number and the Module Slot Number MODULE ADDRESS RGS VO Rack Number VO Group Number Module Slot Number Fig 5 4 BT Module Address 5 2 ADVANCED MICRO CONTROLS INC Chapter 5 AMCI Module Addressing Addressing a Single Transfer Module The single channel Transducer Interface Modules the 1731 41 and the 7751 can transfer position data to the PLC with Single Transfers The transfer is done automatically at the beginning of every scan between the Input Image Table and the Interface Module To access the Position data from a 1731 41 or 7751 Module that uses Single Transfers you must know the memory location in the Input Image Table associated with the module PLC 2 Three or four digit number The first is a 1 followed by the VO Rack and VO Group Numbers PLC 3 The letter I followed by a four digit number The first three digits are VO Rack Number followed by I O Group Number PLC 5 The characters I followed by a two or three digit number The first one or two digits are the I O Rack Number followed by the VO Group Number Addressing Examples The following three figures show how to address an AMCI Module when using 2 Slot 1 Slot and 2 Slot Addressing The addresses used when the module is configured for Block or Single Transfers are s
65. p Coils sense when the twist in the waveguide called the Strain Pulse reaches the head of the LDT PROTECTIVE OUTER CASING PERMANENT MAGNET PICKUP MECHANICAL DAMPENER CURRENT y WIRE BIAS STRAIN MAGNETS PULSE Fig 1 1 Typical Magnetostrictive LDT To determine the position of a permanent magnet along the LDT s length a current pulse is sent over the wire contained within the waveguide This current pulse instantaneously forms a magnetic field around the waveguide The waveguide twists where the fields formed by the current pulse and the magnet intersect Like a ripple on water this Strain Pulse travels towards the head and the end of the LDT at over 9000 feet per second 6000 miles per hour The strain pulse that travels towards the head is detected by the pickup coils The strain pulse that travels toward the end is absorbed by a mechanical dampener to prevent it from reflecting back to the head and causing a false signal The mechanical dampener is the cause of the dead zone at the end of the LDT To determine the position of the magnet it s important to know the speed that the strain pulse travels along the waveguide MTS the manufacturer of Temposonics II LDT s calls this value the LDT s Gradient and specifies it in uSeconds per inch Typically the Gradient has a value of 9 03 but this varies slightly from transducer to transducer The time it takes the strain pulse to reach the head of the LDT can be de
66. parameter is 650 inches or 9999 mm Minimum values are 2 inches or 50 mm Before this parameter is programmed the Measurement Unit Parameter See Pg 2 5 should be programmed appropriately If you are using a 7152 Modules the Full Scale Length Parameter for the additional transducer is sequentially available by pressing the NEXT Key The A Indicator LED on the display indicates transducer 1 while the B Indicator LED indicates transducer 2 When this parameter is entered the Full Scale Count parameter defaults to the maximum resolution allowed for the specified length See Specifications Pg 2 12 Full Scale Count Parameter This parameter sets the number of counts over the specified Full Scale Length The position resolution is equal to the Full Scale Counts divided by the Full Scale Length When the Full Scale Length parameter is entered the Full Scale Count defaults to the maximum resolution allowed for the specified length If you are using a 7752 Module the Full Scale Count Parameter for the additional transducer is sequentially available by pressing the NEXT Key The A Indicator LED on the display indicates transducer 1 while the B Indicator LED indicates transducer 2 Position Offset Parameter This parameter is used to set a reference point for the Position Function to start from Max Min values for the Position Offset are 499 999 This parameter is most often used to set the zero position on the LDT p
67. ple the A key would be pressed 3 times IND LEDS Indicator LEDs that indicate the function or parameter being displayed or programmed Display Information shown on the 6 digit display The blinking cursor is shown by a double underline The following keystroke examples use the least number of keystrokes However any series of keystrokes is valid as long as the data is correct before the ENTER key is pressed Scaling Parameters Count Direction You are using the Temposonics LDT to measure the liquid level in a 250 gallon cylindrical tank to 0 01 gallons The transducer is mounted above the tank so you need the position values to decrease as the magnet moves away from the LDT head You can accomplish this by changing the Count Direction Parameter to negative If the Count Direction Parameter is Positive the value of the Position Function is the Position Offset plus the True Position If the Count Direction Parameter is Negative the value of the Position Function is the Position Offset minus the True Position The True Position is the actual distance from the magnet to the pickup coil in the head of the LDT PRESS IND LEDS DISPLAY COMMENTS A A dir n Parameter changed to negative count direction ENTER A dir n Value stored in E2PROM Blinking cursor removed ADVANCED MICRO CONTROLS INC 4 1 Chapter 4 Keyboard Programming Scaling Parameters cont d Full Scale Length The LDT length is 72 inches
68. r 07g if the module is in slot 0 or at 17g if the module is in slot 1 The BTW EN and DN bits are located at bit number 06g or 16g ADVANCED MICRO CONTROLS INC Chapter 6 PLC 2 Block Transfer Instructions Programming Example The following example assumes 1 Slot addressing and an AMCI Module in the first slot group of the processor rack Rung 1 BTR Instruction to the AMCI Module The Block Transfer Read executes every scan except when a Block Transfer Write is requested The BTR must be disabled because the BTR and BTW files are of different lengths Rung 2 When the Block Transfer Read is completed the BTR Done bit is set This energizes the File to File Move that buffers data from the AMCI Module The program uses the data at addresses 205 209 in the rest of the program Rung 3 The Block Transfer Write is requested whenever CRI is latched on Rung 4 CRI is latched on when a BTW Request is made Rung 5 CRI is unlatched when the BTW Request is removed and the BTW Done bit is set CR1 BLOCK XFER READ EN Vi DATA ADDR 030 MODULE ADDR 110 07 BLOCKLENGTH 05 111 FILE 200 204 DN 07 BTR FILE TO FILE MOVE 033 COUNTER ADDR 033 IEN DN POSITION 110 17 FILE LENGTH 05 FILE A 200 204 033 FILE R 205 209 DN RATE PER SCAN 005 15 011 CRI BLOCK XFER WRITE EN DATA ADDR 031 06 MODULE ADDR 110 BLOCK LENGTH 23 DN FILE 300 322 06
69. rfacing a magnetostrictive LDT to a programmable controller system could be a difficult task One possibility was to use an external decoder that interfaced to the programmable controller through an analog or digital input card Another possibility was the Allen Bradley Linear Positioning Module 1771 QB that could be confusing to use in applications that require only position and velocity feedback instead of closed loop position control Utilizing licensed Allen Bradley proprietary 1771 I O interface technology and patents and the latest in programmable chip technology the Series 7700 Modules are direct interfaces between magnetostrictive LDT s and your A B programmable controller The many features of the 7700 Modules make them the most advanced products on the market today Interfaces 1 or 2 AMCI Balluff or Temposonics II LDT s to your programmable controller Communicates with the processor via the Block Transfer Instructions Block Transfer Read In structions give access to position velocity and fault diagnostic data while Block Transfer Write Instructions make the module fully programmable from the backplane Position and velocity resolution fully programmable down to one thousandth of an inch Other features include Position Offset Count Direction Auto Preset of position data and many more Self contained design eliminates the need for an external power supply Extensive diagnostics continuously monitor the tr
70. robe If you are using a 7752 Module the Position Offset Parameter for the additional transducer is sequentially available by pressing the NEXT Key The A Indicator LED on the display indicates transducer 1 while the B Indicator LED indicates transducer 2 ADVANCED MICRO CONTROLS INC 2 3 Chapter 2 Series 7700 Module Description Function and Parameter Displays cont d Setup Parameters These parameters are only available when the module is in Program Mode See Program Switch Pg 2 9 for more information These parameters contain information that would not be changed often once the system is running POS TAC SF O A B C D PLC SERIES SEO SE ELN PRG RUN FAULT Fig 2 8 Setup Display SF e A B D EEE EE PLC SERIES Fig 2 9 LDT Type POS TAC SF O A B e D GT PLC SERIES PRG RUN FAULT Fig 2 10 DPM Recirculations 2 4 Setup Parameter Display When this display is shown press the ENTER Key to gain access to the Setup Parameters Pressing the FUNCTION key will return you to the Position Function display LDT Type Parameter This parameter specifies the type of LDT attached to the 7700 Presently AMCI Balluff and Temposonics II LDT s are supported LDT Type 1 AMCILHT Series Transducers LDT Type 2 Balluff Transducers wi K output option LDT Type 3 Temposonics II w DPM Module LDT Type 4 Temposonics II w RPM Module If you are using a 7752 Module the LDT T
71. rogram Instruction Program Instruction Program Instruction Fig 10 1 7700 Program Instruction Format ADVANCED MICRO CONTROLS INC 10 1 Chapter 10 Programming Instructions and Error Codes Program Instructions Program Instructions can be broken down into three categories Module Instructions Transducer Instructions and Read Status Instructions Module Instructions Instructions that affect the operation of the Module These Instructions are Disable Keyboard Programming Enable Keyboard Programming Clear Errors Enter Read Status Mode and Exit Read Status Mode Note that Enter Read Status Mode and Exit Read Status Mode cannot be place in one BTW file Transducer Instructions Instructions that affect the Transducer Parameters These In structions are Store Setup Transducer 1 Store Parameters Transducer 1 Store Setup Transducer 2 Store Parameters Transducer 2 You can program all of the module s parameters as well as preset the transducer s position value Read Status Instructions Instructions that tell the Module which programmable parameter values are to be sent to the PLC instead of Position and Tachometer data These instructions can be issued only after Read Status Mode has been entered Module Instructions COMMAND COMMAND WORD COMMENTS Disable Keyboard Use this instruction to prevent programming the 7700 from Programming the keyboard See Program Switch Pg 2 9 for more information Enable
72. rsonality Module Speed Velocity Parameter to 60 mSec and set the LDT Gradient to 8 97290 All other parameters are set to their default values Command Word 8903h Data Words 8801h Mode Parameters 0897h LDT Gradient 0290h 10 4 ADVANCED MICRO CONTROLS INC Chapter 10 Programming Instructions and Error Codes Transducer Instructions cont d COMMAND COMMAND WORD COMMENTS Store Parameters X 0 F Use this instruction to program the Full Scale Transducer Length Count Direction Full Scale Count Position Offset and Preset Value Parameters Digit X L Full Scale Length Full Scale Count Position Offset Position Preset Bit Set to 1 2 Store New Parameter Bit Set to 0 2 Leave Parameter as is Example 8801h Store new Full Scale Length The new values of the parameters are stored in BCD format as Data Words immediately after the Command Word 4 BCD digit Full Scale Length 01010 Upper 2 digits F S Count Lower 3 digits F S Count 0 Upper 2 digits Position Offset Lower 3 digits Position Offset 0 Upper 2 digits Position Preset Lower 3 digits Position Preset Direction Parameter Bit Set it equal to zero to increase the Position data as the magnet moves from the LDT head Set it equal to 1 to increase the Position Data as the magnet moves toward the LDT head Sign Bit Se
73. sfer Instructions Enable EN Error ER and Done DN Bits cont d The following warning is taken verbatim from Allen Bradley s PLC 5 Family Programmable Controllers Processor Manual Publication 1785 6 8 2 November 1987 and refers to the Control Bits of the BT Instruction These bits include the Enable Error and Done bits IMPORTANT The processor executes block transfer instructions asynchronous to the program scan The status of these bits could change at any point in the program scan When you test these bits especially the done bit test them only once every ladder program scan If necessary set temporary storage bits for the purpose of enabling subsequent rungs from them Also your ladder program should condition the use of block transfer data on the examination of the block transfer error bit An error may occur when the processor is switched from run mode or when processor communications are interrupted Programming Example The following example assumes 1 Slot addressing and the AMCI Module is I O Rack 2 I O Group 5 of the system BLOCK XFER READ RACK 2 EN GROUP 5 MODULE 0 CONTROL N7 20 ER DATA N7 25 LENGTH 5 DN CONTINUOUS Y GER COP COPY FILE SOURCE N7 25 DEST N7 30 LENGTH 5 CRI BLOCK XFER WRITE RACK EN GROUP 5 MODULE 0 CONTROL N14 0 ER DATA N14 5 LENGTH 23 DN CONTINUOUS N nu BTW Request CR1 L BTW Request BTW CR1 Vi U DN
74. t Parameter i 2 3 Setup Parameter Display ii 2 4 LDL Type Parameter 2 112 ee tUe ete en 2 4 DPM Recirculations Parameter ss se ee enne 2 4 Measurement Unit Parameter ses ds se ee GR AA Ge AA ee RA AA ee ee 2 5 LDT Gradient Parameter ice ettet ie eene rhe 2 5 Decimal Point Parameter ies ener bes SERE SAGE Reede fee ae 2 5 Preset Value Parameter unu ee es 2 6 Speed Average EE 2 6 Data Format Parameter esse esse osse see Re eene E de Ro EA ee Rd oe at etra nacos 2 6 Tratisier Lype Parameter tii leida 2 6 Status Indicators ii A A ies abate 2 7 Error Class 1 Transducer Fault i 2 7 Error Glass 2 FE PROM Faults iien dace HE o a usc das 2 7 Error Clas 3 RAM Fault ist reete aee ese eke gek EPI ER ERG ENEE 2 7 Error Class 4 Power Supply Shut down Fault eese 2 8 Overflow Underflow Indication ii 2 8 Program 9 Witch g t SE en HU tie ii se 2 9 Keyboard Description ET 2 10 Transducer Input Connector iure lalla etr pee ii 2 11 Fuse Replacement ient due cete ed eene dete ten 2 11 Specifications RE EE EE 2 12 ADVANCED MICRO CONTROLS INC i Series 7700 Table of Contents Chapter 3 Installation Power Requirements i2 eee E ea Reli 3 1 Instalhng the Module peculato pendet deed 3 1 Keying Bands ENE N RO EE ita 3 1 Compatible Transducers EE i iet NE AE EE OE EE 3 2 Temposonics ID MS vi A isa 3
75. t and True Position are significant In most cases you can use the Auto Preset feature to set the value of the Position Function instead of calculating the Position Offset Using the Auto Preset the Position Offset will be automatically calculated by the 7700 It is then simple if necessary to vary the Position Offset by small amounts from the Position Offset display 4 2 ADVANCED MICRO CONTROLS INC Chapter 4 Keyboard Programming Scaling Parameters cont d Position Offset cont d In this example the Position Offset equals 32080 and must be changed to 32069 PRESS IND LEDS DISPLAY COMMENTS 4 A gt X4 32069 Value stored in E2PROM W X2 gt V Blinking Cursor removed ENTER Setup Parameters The rest of the programmable parameters on the 7700 are Setup Parameters They are available only when you are in Program Mode The following keystrokes show you how to access these parameters PRESS IND LEDS DISPLAY COMMENTS ENTER A Con rP First Setup Parameter Other values available by pressing the FUNCTION Key LDT Type You are using a Temposonics II LDT that contains a DPM Personality Module Presently the 7700 is in its default configuration for AMCI LDT s PRESS IND LEDS DISPLAY COMMENTS FUNCTION Ldt 1 Default Value AMCI LDT s A X2 ENTER A Ldt 3 Value stored in E2PROM Blinking Cursor removed ADVANCED MICRO CONTROLS INC 4 3 Chapter 4 Keyboard Programming
76. t it equal to 0 for positive Position Offset or Preset values Set it equal to 1 for negative Position Offset or Preset values Programming Example Set Count Direction to Negative Full Scale Length to 40 inches and Full Scale Count to 25000 Command Word 8803h Data Words 0040h Full Scale Length 8025h Count Direction amp 0000h Full Scale Count ADVANCED MICRO CONTROLS INC 10 5 Chapter 10 Programming Instructions and Error Codes Transducer Instructions cont d COMMAND COMMAND WORD COMMENTS Store Setup X 0 3 Not available with the 7751 Use this Program Transducer 2 Instruction to program the Setup Parameters of the second transducer on the 7752 Module Command Word and Data Word formats are the same as Store Setup Transducer 1 Program Instruction Store Parameters X 0 F Not available with the 7751 Use this Program Transducer 2 Instruction to program the Parameters of the second trans ducer on the 7752 Module Command Word and Data Word formats are the same as Store Parameters Transducer 1 Program Instruction Preset 8500h Use this command to set the Position Function of Transducer 1 Transducer 1 equal to the programmed Preset Value Preset 9500h Not available with the 7751 Use this command to set the Transducer 2 Position Function of Transducer 2 equal to the programmed Preset Value Read Status Instructions In order to read the programmed values of the modules parameters you must include
77. t part numbers on the mating connectors 7751 Module 7752 Module AMCI Part Phoenix Part MSTB2 5 8 ST 5 08 MSTB2 5 14 ST 5 08 Fig 2 25 Transducer Input Connector Part Numbers The pin out of the cables are given in Chapter 3 Installation Fuse Replacement If the Power Fuse fails it can be easily replaced The factory installed fuse is a 3 5 Amp Fast Blow Littelfuse Part Number 22503 5 Fuse kits are available from AMCI The AMCI Part number is SKF 1 Each fuse kit contains five fuses To insure continued and adequate protection any replacement fuse O CAUTION must have a rating of 3 5 Amp Fast Blow Using a higher ampere rating or slow blow fuses may not protect the module from damage if the fault conditions are again applied to the module MW ARNING Remove system power before removing or installing a module in the VO Rack Failure to observe this warning can result in damage to the module s circuitry and or undesired operation with possible injury to personal ES Power Fuse 00 la o TOU U U Fig 2 26 Power Fuse ADVANCED MICRO CONTROLS INC 2 11 Chapter 2 Series 7700 Module Description Specifications Module Location Any 1771 1 O chassis occupies two slots Position Transducer AMCI LHT Series LDTs Balluff LDT wit
78. termined by starting a high speed counter when the current pulse is sent and stopping the counter when the pickup coils sense the strain pulse The magnets absolute position from the pickup coil equals the counter time divided by the Gradient value ADVANCED MICRO CONTROLS INC Chapter 1 Introduction to the 7700 LDT Interface Module 7700 Functions and Parameters FUNCTIONS The 7700 Modules perform two operations These two operations are called Functions These Functions are Position Data Function Gives you information on the position of the LDT s magnet relative to a zero point Velocity Data Function Gives you information on the velocity of the magnet along the LDT s shaft One or more inputs define each Function One input is the magnets absolute position on the LDT transducer The other inputs are programmable from the keyboard or the PLC These inputs are called Parameters SCALING PARAMETERS Count Direction Sets the direction relative to the head of the LDT that the magnet must travel to increment the Position Data Full Scale Length Programmable in inches or millimeters this parameter is the length that you expect the magnet to travel Maximum value is 650 inches or 9999 millimeters Full Scale Count This parameter sets the number of counts over the Full Scale Length The position resolution is equal to the Full Scale Length Full Scale Count Maximum resolution is 0 001 inches or 0 1 millimeters Pos
79. that you show on the display can be changed if one of the digits on the display is blinking The blinking digit shows the position of the Cursor Key Display Mode pe N Use this key to select the function or parameter you FUNCTION wish to show on the display Not used in Display Mode Use this key to recover from fault conditions The exact nature of the fault is shown on the display See Status Indicators Pg 2 7 Used to switch between the transducer inputs on a multi channel module Not used is Display Mode Not used in Display Mode Fig 2 24 Keyboard Description 2 10 ADVANCED MICRO CONTROLS INC Program Mode Same as Display Mode If a parameter is shown with the Cursor press ing this key will store the displayed value in E2PROM Memory Same as Display Mode If the Position Function is on the display press this key to use the AUTO PRESET feature Same as Display Mode If the Cursor is shown use these keys to incre ment A or decrement W the number under the cursor If the Cursor is shown these keys shift the Cur sor to the left 4 or the right gt by one digit Chapter 2 Series 7700 Module Description Transducer Input Connector The Transducer Input Connector on the Series 7751 single channel Modules has eight contacts while the Transducer Input Connector on the Series 7752 dual channel Modules has fourteen contacts The following table lists the AMCI and Phoenix Contac
80. the Block Length The PLC 2 stores the value of the File Address at 100g memory locations above the value of the Data Address in the Timer Counter Preset Value section of the Data Table There are two areas in the PLC 2 memory that you can use to store the Block Transfer File The first and preferred area is in an expansion area You can set this area aside when you set up the system Each expansion area is 128 words long and is the last section of the Data Table before the User Program The expansion area has the advantage of being completely under your control because it is not used for any of the processor s functions The second area that you can use to store the Block Transfer File is in any unused memory in the T C Accumulated or T C Preset Values sections These areas have the advantage of using memory that would otherwise be wasted but have the disadvantage of potentially being overwritten by a Timer or Counter Instruction Enable EN and Done DN Bits 6 2 Used to signal the start and finish of a Block Transfer the processor sets the EN bit to start the transfer and after successfully completing the transfer the module sets the DN bit You should use the DN bit to buffer the data coming from the module This prevents the program from using invalid Position and Velocity data from the AMCI Module The EN bit is located in the Output Image Table The DN bit is located in the Input Image Table Both BTR EN and DN bits are at bit numbe
81. ve an Integer of Binary data type and can be a separate file or part of a larger file File Length The File Length is the number of words in your data file When programming a BTR Instruction you can set the Block Length to 00 This will reserve 64 words in the PLC 5 memory but the module will only transmit the number of words necessary When programming a BTW Instruction the number of words needed depends on the number of Program Instructions that you are writing to the AMCI Module The File Length of a BTW Instruction MUST equal the number of words used by the Program Instructions Using a File Length of zero will cause an Invalid Command Error if the number of words used by the Program Instructions is not 64 ADVANCED MICRO CONTROLS INC 8 1 Chapter 8 PLC 5 Block Transfer Instructions File Length cont d The tables below lists the number of words transmitted by a AMCI Modules when a BTR Instruction is executed Chapter 9 Data Format gives the format of the transmitted data 1700 USERS To make the present 1700 modules compatible with older versions you must set the Module to Read Only with the PLC Program Parameter If you set the PLC Program Parameter to Read Only the number of words transmitted by the 1700 Module is the second number listed in the following table 1700 Module 1731 41 1732 42 1733 43 1734 44 1761 1762 1763 Block Length 3 2 5 4 7 6 9 8 4 3 7 6 5 4 Fig 8 1 1700 Module Block Length 2700 Module
82. ver be performed 8 4 ADVANCED MICRO CONTROLS INC Block Transfer Data Format A 7700 Module normally transmits position and velocity data to the PLC when a Block Chapter 9 Series 7700 Data Format Transfer Read Instruction accesses the module The order and format of the position and velocity data is shown below By using Read Status Instructions that you send to the module with a Block Transfer Write you can force the module to transmit the present values of all the Programmable Parameters Read Status Data Format Pg 10 7 lists the format of the Block Transfer Read data when in Read Status Mode Hex Bit Octal Bit W ord 1 Word 2 Word 3 Word 4 Word 5 Word 6 Word 7 Word 8 STATUS Status Bits 15 14 13 12 11 10 09 08 07 06 05 04 03 02 on op 17 16 15 14 13 12 11 10 07 06 05 04 03 02 oi op T IP 10 0 o 0 U S Upper 2 digits Position Data 0 0 j0 0 Lower 3 digits Position Data TRANS 1 T IP 0 0 o 0 U S Upper 2 digits Velocity Data 0 0 0 0 Lower 3 digits Velocity Data TRANS 1 T P 0 10 o 0 U S Upper 2 digits Position Data 0 0 0 0 Lower 3 digits Position Data TRANS 2 DP OO 0 0 U S Upper 2 digits Velocity Data 0 0 00 Lower 3 digits Velocity Data TRANS 2 Software Errors Hardware Errors Fig 9 1 Data Format T Transducer Fault Bit It equals 1 when there is
83. wired Transducer Cable EHE ms Faulty Transducer Fig 2 20 P S Fault If you owna 7751 with a Serial 10084 and above ora 7752 with a Serial 9330 and above the fault message will clear itself when the fault condition is removed If you own a pre 10084 or 9330 Series 7700 Module you must press the CLEAR Key to clear the error If you are using the 7752 a fault on one transducer will also shut down the other Er r z OVERFLOW UNDERFLOW INDICATION The value of the Position Function is limited to 99 999 Under certain circumstances it is possible to increment or decrement the Position value beyond these limits When this occurs the Position and Velocity Functions change to one of the following POS TAC SF O A B C D POS TAC SF o A B C D ME NE WI II WII PLC SERIES PLC SERIES E PRG RUN FAULT PRG RUN FAULT Fig 2 21 Position Overflow Fig 2 22 Position Underflow The Position and Velocity displays will automatically show data once the magnet s position has moved or one or more of the Parameters has been changed Overflow Underflow indication is also sent to the Processor See Data Format Pg 5 1 for further information 2 8 ADVANCED MICRO CONTROLS INC Chapter 2 Series 7700 Module Description Program Switch The Program Switch is used to enable or disable programming of the 7700 Module The module is programmable Program Mode PRG light ON when the switch is pushed towards the back of the module W
84. ype Parameter for the additional transducer is sequentially available by pressing the NEXT Key The A Indicator LED on the display indicates transducer 1 while the B Indicator LED indicates transducer 2 A 7752 can support two different LDT s at the same time DPM Recirculations Parameter This parameter is available only when a Temposonics II with a DPM Module is selected as the LDT Type This parameter tells the 7700 how many Recir culations the DPM Module is configured for This parameter must equal the number of recirculations the DPM is set for or the Position data will not be valid Allowable values for this parame ter are 1 2 or 4 recirculations If you are using a 7752 Module the DPM Recirculations parameter for the additional transducer is sequentially available by pressing the NEXT Key The A Indicator LED on the display indicates transducer 1 while the B Indicator LED indicates transducer 2 Also the DPM Recirculations parameter for the two LDT s can be different ADVANCED MICRO CONTROLS INC Chapter 2 Series 7700 Module Description Function and Parameter Displays cont d Setup Parameters cont d Measurement Unit Parameter Specifies the measurement unit POS TAC SF o A B CG D HEEE E PLC SERIES I l LII E Li PRG RUN FAULT Fig 2 11 Measurement Unit POS TAC SF O A B C np EI ce II PLC SERES PRG RUN FAULT Fig 2 12 LDT Gradient POS TAC SF o A B C D LOCH PLC SER

7700 series manual - Advanced Micro Controls Inc

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