fx-2da user manual
Contents
1. 059 9211 SEN c9 to change without notice2. DC 10V 10V external load 1k to 1MQ DC 4mA to 20mA external load 500 Q or less Digital input Voltage 2048 to 2047 Current 1000 Resolution 5mV 10V full scale 1 2000 204A 20mA full scale 1 1000 Overall accuracy 196 full scale 10V range 1 full scale 20mA range Conversion s eed 18ms for 2 channels Photo coupler isolation between analog and digital circuits DC DC converter isolation of power from Isolation base unit No isolation between out Power consump DC 24V 10 130mA tion 8 points are occupied in the software i e the base unit image table They may be regarded as either inputs or outputs Power consumption from base unit is 5V 30mA Factory Presets Load voltage Qutput 2502 rrent 1000 2000 208 5V 20mA Analog output ant ee eee 10V iR M ED E Digital input Digital input 1000 Gain and offset can be adjusted using the procedure described on pages 13 to 15 3 WIRING pcm mtm mc mimm p ee ae tee Hn pc y SRT HR He nom Remo e v moo mc omm e c hmmm totom tmm V It m do o i oltage n 8 E t F T Dd DC 24V 10 1000 B Tesi pi FX 2DA analog output block 277 po 74 Programmable 2 controller Extension cable 1 Usea twisted pair shielded cable for the analog 4 Connect the grou
3. FROM P X10 mi m2 n BFM 30 in special block 0 is transferred to DO mi Special unit or block No KO to K7 starting from the one closest to the base unit m2 Head address of buffer memory n2 to K31 D Head address of the transfer destination T C D KnM KnY 5 V and Z can be specified and element No can be coupled with an index n Number of transfer points K1 to K32 but K1 to K16 for DFROM DFROMP m 15 __ 03 D2 are transferred Ko lo to special block No 1 BFM 2 1 IAE G D TO X11 m1 m2 n The same as above S Head device no of source T C D KnX KnM KnY YnS V Z K and H can be specified and element No can be coupled with an index e When X10 or X11 is OFF transfer is not executed and data at the transfer destination is not changed 16 9 REFERENCE Programma ble Controller EEPROM memory for 1 offset and gain Command in formation write and data TO status read Buffer Memory RAM FX series DS Converted data Control System ROM Signals DC DC Converter V DC Power t t F 1 L j 1 t i l I F t I t t FX 2DA Analog Output Biock 17 10 APPENDIX ATTENTION FOR WHEN SWITCHING SYSTEM ON OFF Due to the inevitable timing difference of the DC24v for the analog circuits and other
4. allows the buffer memory settings to be set from the beginning again when many settings have been corrupted If b1 b0 of BFM 21 is set to 1 0 gain and offset adjustments are prohibited This is to prevent inadvertent misuse by the operator To adjust the gain and offset b1 b0 of BFM 21 must have the values 0 1 The default is set at 0 1 Caution 3 4 Each time a TO instruction is used to send data to BFM 22 gain offset setting com mand the designated gain and offsets of each channel G202 G101 are adjusted with the values in BFM 23 and 24 This action causes the adjustments to be written to inter nal non volatile EEPROM memory Limit this action to as little as possible to preserve the life of the EEPROM memory Gain and offset values in BFM 23 and 24 are set in units of mV or Due to the resolution of the unit the actual re sponse will be in steps of 5mV or 204A Because of the time taken to write to the EEPROM memory a delay of 300ms is needed between instructions that cause a write to the EEPROM Therefore a delay timer should be used before further writes to the EEPROM after executing the following Writing to BFM 0 5 or 21 The gain offset command with BFM 22 The default command with BFM 20 5 STATUS INFORMATION Offset Gain data normal 1 Status information BFM 29 When any of b1 to b4 is ON D A conversion is stopped E for the error c
5. is read and the GAIN value is output Use the UP DOWN switch to reach the desired GAIN value range Gain value offset value 1V to 15V voltage output 4mA to 32mA current output Set the MODE switch to the READY position The gain value is read the D A LED goes off and the offset value is output Repeat steps 3 to 9 for CH2 if desired then set the MODE switch to READY Adjustment is completed 7 GAIN AND OFFSET ADJUSTMENT 4 ADJUSTMENT BY PROGRAMMABLE CONTROLLER I O characteristics of the FX 2DA can be adjusted by changing the gain and offset parameters These can be changed by the switches of the FX 2DA with the aid of Voltage amp Current meters or simply changed by writting these settings from the programmable controller The following is an example changing the offset value to and gain value to 20mA on output channel CH2 of the FX 2DA connected as block No 1 e in the program shown at left the pro grammable controller should be in RUN status and MODE switch of the FX 2DA in the READY position M8002 RUN wee BFM 0 should be of HEX value H10 and b1 b0 of BFM 21 T Kis BEM 421 should be 0 1 ERIT FNC 79 T T This statement may be omitted if BFM TO P 23 is already at its default value KO BFM 23 offset K20000 BFM 24 gain FNC79 22 offset gain set 15 8 FROM TO COMMANDS 4 FROM TO Commands Explained FNC78 D
6. ADVANCED AND EVER ADVANCING MITSUBISHI ELECTRIC A MITSUBISHI PROGRAMMABLE CONTROLLERS 58 dey v wu meaw Ca r power ves wurvsawisX2d3 Ld wy Sunwaie seiumngs sion unit by the TO instruction of the base unit Foreword e This manual provides technical information on the use of the FX 2DA Analog Output Block in connection with the FX programmable controller e Users should ensure that the details of this manual are studied and understood before attempting to install or use these units CONTENTS INTRODUCTION OUTLINE SPECIFICATION WIRING ASSIGNMENT OF BUFFER MEMORY BFM STATUS INFORMATION EXAMPLE PROGRAMS GAIN AND OFFSET ADJUSTMENT FROM TO COMMANDS REFERENCE 10 APPENDIX oo N Aa Of WO ND 1 INTRODUCTION The FX 2DA analog output unit receives up to 2 channels of 12 bit digital data stored in 16 bit words from an FX series programmable controller and converts it into 2 channels of analog output either voltage or current Optical coupling is used to ensure that voltage surges do not damage other parts of your equipment 1 Compatible Programmable Controllers 3 Analog Output Range The FROM TO command is used for The preset ranges 10V to 10V and transferring data to from the programma 4mA to 20mA can be selected indi ble controller so versions 2 0 or subse vidually for each channel Current or quent versions of the FX series voltage selection is made by bu
7. e left at their default values and the status information is ignored you can use the simple program which follows M8002 Voltage output on both CH1 and CH2 PEE Block No BFM Transfer Number of pulse No 1 0 data H10 words output data to into the data registerD0 W si mpi dita t CFR ik Ba na AE DAS Range 2048 to 2047 D0 BFM 1 Output to CH1 D1 BFM 2 Output to CH2 monitor Procedure 1 Write the program into the programmable controller 2 Connect the FX 2DA unit to the base unit of the programmable controller as the 2nd special block 3 Set the MODE switch on the FX 2DA panel to READY 4 Turn on the programmable controller and the FX 2DA unit Result When the programmable controller is in RUN mode the voltage output on channels CH1 and CH2 will vary according to the digital values in data registers DO and D1 When the programmable controller is in STOP mode the last output made during RUN mode will be maintained In the above program the FX 2DA unit occupies the position of special block No 1 that is the 2nd closest special block to the base unit Voltage output from 10V to 10V is produced from channel CH1 and 4mA to 20mA from CH2 10 6 EXAMPLE PROGRAMS Example 2 In the following example channel CH1 is set to voltage output while CH2 is set to current output The FX 2DA unit is connected at the position of special block No 1 If the programmable controller is chan
8. fault 0 BFM 2 CH2 data default 0 If the programmable controller is changed to the STOP state the FX 2DA wil continue to output the last value To reset the output to the offset value set the HEX characters of BFM 5 to one of the appropriate settings below H01 CH2 Hold CH1 Reset H10 CH2 Reset CH1 Hold H11 CH2 Reset CH1 Reset Both channels are held when BFM 5 HOO 4 ASSIGNMENT OF BUFFER MEMORY BFM The buffer memory also handles information used to adjust the gain and offsets of the FX 2DA unit Sta tus of the unit such as errors are also available e In marked BFM s data can be writ ten from the programmable controller 20 Reset all to default default value O via the TO command From BFM 29 Gainvotteet adjust prohibit Prohibit Permit and 30 data can be read via the aaien s FROM command 2200 Offset gain setting e Offset value the actual output value Offset data mV or uA units default value 0 when the digital input is O Gain data in mV units default value 5 000 e Gain value the actual pupa value Ans when the digital input is 1000 Reseed 0 S 3 Error status See next page Identification code K3010 See next page m 22 002 4 ASSIGNMENT OF BUFFER MEMORY BFM 1 When BFM 20 is set to K1 all settings in the buffer memory are reset to their default set tings This
9. ffer mem programmable controllers those with ory assignment and terminal wiring serial no 13XXXX or larger are required f 4 Gain and Offset 2 Configuration Specifications Gain and offset can be adjusted by the The FX 2DA occupies 8 1 0 points but user to give the desired output range does not affect the addressing of nor The desired range must be within the mal input and output relays It is impor convertable maximum of the unit tant only when maximum 1 O is considered The FX 2DA draws 30mA Adjustment can be made by the front from the 5V rail from the base or exten panel switches or by software settings sion unit by the TO instruction of the base unit 2 OUTLINE SPECIFICATION 1 Dimension mm inch e Weight Approx 0 5 kg 1 1 Ibs e Accessories Self adhesive labels for special block number identification Extension cable and connector Groove for 35mm 1 38 wide DIN rail 125 140 4 92 5 51 2 5 5 0 22 hole A Fae EE fat s o LS termina EA ED Screws ll 1 95 3 74 2 OUTLINE SPECIFICATION 2 Perfomance Specifications The environmental specifications for the FX 2DA are the same as those for your base unit Voltage output Current output Hem Voltage or current outputs can be individuaily selected with each output terminal There are a total of 2 output points
10. ged to the STOP mode the last data sent will remain and the outputs will hold M8000 RUN monitor Block No 1 BFM 30 Identification code Transfer to D2 When Identification code is K3010 FX 2DA M1 becomes ON H10 unit No 1 BFM 0 CH1 voltage output CH2 current output Block Transfer Number of No 1 data H10 words DO0 gt BFM 1 output to CH1 D1 BFM 2 output CH2 BFM 29 b15 to b0 gt M25 to M10 Reads the status information M10 M18 M20 cC No error READY Output range Output data normal normal 11 6 EXAMPLE PROGRAMS 1 Operation 1 Check if the output wiring power wiring and extended cable for the FX 2DA are properly connected 2 5V 30mA is supplied from the base and exten sion units for the FX 2DA Check that power overload is not caused by this or any other special block 3 When DC 24V power is supplied from the base and extension units of the programma ble controller check that the current is below the allowable service current on the program mable controller side varies according to the number of extension blocks connected Set the MODE switch on the FX 2DA to the READY position and turn the DC 24V power 4 5 Turn the programmable controller and RUN input ON However output mode of BFM 0 should be set in advance depending on volt age current output 12 2 Abnormality check The following can be checked with LEDs
11. hannel 4 bi Offset Gain data in EEPROM Oftset Gain is corrupted or adjustment semo error bea 7 a Power supply Power DC 24V power supply failure Bd E normal seasons es 53 D A converter or other Hardware m me ee m Incorrect installation or j FROM TO command misused BFM data error ES 7 FX 2DA MODE switch is not set to READY FE TNT Digital input value or analog E output is outside the specified range No error READY mode Analog output value is normal 2 in erenien b1 b0 of BFM 21 51 50 of ES 4 2 is set at 1 0 BFM 21 is set ad JE inue Si ar al 0 Bits b5 to b7 b9 b11 and b13 are undefined 2 Model code number BFM 30 The Identification code for a Special Block is read using the FROM command The Identification code for the FX 2AD unit is K3010 The programmable controller can use this fa cility in the program to identify the special block before commencing any data transfer from and to the special block Caution Values of BFM 0 5 23 and 24 are copied to EEPROM memory of the FX 2DA BFM 21 and 22 are only copied when data is sent to gain offset command BFM 22 BFM 20 also writes to the EEPROM memory The EEPROM has a life of about 10 000 cycles changes so please do not use programs which frequently change these BFMs 6 EXAMPLE PROGRAMS Example 1 If the gain and offset settings ar
12. in digital output When the gain value is large implying a gentle slope a large change in analog input will only produce a small change in digital output 7 GAIN AND OFFSET ADJUSTMENT 3 Gain and Offset Adjustment Using Switches on the FX 2DA Unit The gain and offsets can be adjusted by using the switches on the FX 2DA panel with the aid of a voltmeter and an ammeter which are to be con nected to the FX 2DA With these procedures you still need to set the input mode BFM 0 After b1 b0 of BFM 21 is changed to 1 0 you can no longer change the gain offsets You should therefore write 0 1 to b1 b0 of BFM 21 prior to adjusting the gain offset settings Note 0 1 is the default value 1 Turn on DC 24V power of the FX 2DA The 24V LED lights up 2 Turn on the FX series programmable control ler connected with the FX 2DA The POWER LED lights up The programmable controller should be in STOP mode 3 Connect the load and voltmeter or ammeter to the CH1 terminal between V and V ter minals for voltage output and between 1 and terminals for current output 4 Set the MODE switch to CH1 14 5 10 Press the OFFSET button once with a ball point pen The D A LED lights up The pres ent offset value voltage or current is output Use the UP DOWN switch to reach the desired OFFSET value range 5V to 5V or 20mA to 20mA Press the GAIN button once with a ball point pen The offset value
13. located on the main panel of the FX 2DA POWER LED Lights up when 5V power is supplied from the programmable controller If not check if the extension cable is properly connected 24V LED Lights up when DC 24V power is supplied to the terminal of the FX 2DA If DC 24V 1096 is supplied but this does not light up failure may have occurred on the base unit D A LED Lights up when Digital to Analog conversion is executing normally It goes off if b1 to b4 of buffer memory 29 is generated ON for all the channels 7 GAIN AND OFFSET ADJUSTMENT 1 Standard characteristics of voltage output 10V Gain 2047 P Analog output 2000 1000 2000 2048 Offset 10 Digital output 2 Standard characteristics of current output 20mA Digital output 13 The solid lines show the characteristics when the gain and offsets are left at their default set tings The dashed lines show examples of adjust ments to the gain and offsets Voltage or current output selection is set through the output wiring and by a command from the programmable con troiler Gain and offset settings will remain even after power OFF e Offset value the analog output when the digital input is 0 the analog output when digi tal input is 1000 e Gain value When the gain value is small implying a steep slope a small change in analog input will pro duce a large change
14. nd terminal on the FX 2DA output This cable should be wired away from with the ground terminal on the base unit of the power lines or any other lines which could in programmable controller Use class 3 ground duce noise ing on the base unit if available 2 Apply 1 point grounding at the load side of the Caution output cable class 3 grounding 100 or less If electrical noise is caused from grounding dis a The same output channel cannot drive current connect from ground and voltage output loads at the same time 3 If electrical noise ora voltage ripple exists atthe b Shorting the voltage output terminals may dam output connect a smoothing capacitor of 0 1 age the unit to 0 47uF 25V 3 WIRING 1 Using crimp terminations 6 8 0 27 or less LQ For M3 5 0 14in 6 8 0 27 CA or ie i 2 2 Use with other special blocks Use only crimp terminations of the type indicated in the figure at left Secure the termination using a tightening torque of between 5 and 8kg cm Only use the terminations indicated at left The FROM and TO commands are also used by other Special Function Blocks e g the analog input blocks high speed counter blocks pulse output blocks etc These may be connected directly to the FX Programmable Controller s extension port or to any other extension unit s right side extension port Each special unit or block is consecutively numbered from 0 to 7 beginning f
15. power lines of the base unit the output of the analog output block may behave erroneously before settling down to operational conditions in approximately 1sec Therefore ensure that this behavior is taken into account such that the end performance of the system Is not degraded cut analog lines power switch before switching exampie External analog machine 18 MEMO Revisions I DATE MANUAL NUMBER REVISION Aug 1991 P 18 ATTENTION FOR WHEN SWITCHING SYS Ne die Cis TEM ON OFF added Nov 1992 JY992D28301C Diagram corrections Page 4 Text corrections Pages 6 9 14 EEPROM CAUTION Page 8 Under no circumstances will Mitsubishi Electric be liable or responsible for any consequential damage that may arise as a result of the installation or use of this equipment All examples and diagrams shown in this manual are intended only as an aid to un derstanding the text not to guarantee operation Mitsubishi Electric will accept no responsibility for actual use of the product based on these illustrative examples Owing to the very great variety in possible applications of this equipment you must satisfy yourself as to its suitability for your specific application 4 MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE MITSUBISHI DENKI BLDG MARUNOUCHI TOKYO 100 TELEX J24532 CABLE MELCO TOKYO HIMEJI WORKS 840 CHIYODA CHO HIMEJI JAPAN Effective NOV 1992 JY992D28301C Specifications are subject
16. rom the one closest to the base unit A maximum of eight special blocks can be connected to one base unit SA 28 eM nann n C FX 4AD FX FX 2DA FX 32ER FX 2AD PT Special 8EX Special 40 57 Special block block X30 block Y30 Y47 No 2 No 0 x37 No 1 4 ASSIGNMENT OF BUFFER MEMORY BFM 1 ASSIGNMENT OF BUFFER MEMORY BFM Data transfer between the FX 2DA analog output unit and the programmable controller is through the FX 2DA s RAM buffer memory 32 addresses each of 16 bits M g M i 90 Analog output mode eurentvariage defau HOO 1 0 0 Te Reed In BFM s buffer memory with an data can be written from programmable controller using the TO command These BFM s should always be given when the program mable controller goes from STOP to RUN Buffer memory BFMs are reset to their default settings upon power on 1 Switching between voltage and current output modes The value of BFM 0 switches the analog output between volt age and current on channels CH1 and CH2 It takes the form of a 2 character HEX number The least significant char acter controls CH1 and the other con trols CH2 Control of each O HEX character of HOO O 0 Voltage output 10V to 10V 1 Current output 4mA to 20mA Example H10 CH1 Voltage output CH2 Current out put Output data BFM 1 CH1 data de
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