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Found 85 results

  1. 1747-NI8 Open Circuit

    I have an 8 point analog input card on a rack with a SLC 5/04 CPU.  It has been in operation for 20 years or so.  There have been some power problems at site lately and ever since they fixed them I have been having issues with 3 of the 4-20mA circuits on this card showing open circuit.  I have had my meter on them when they show open circuit.  The signal reads 3.96mA, just below the 4mA minimum and boom, the machine goes down.  Is there a way to adjust this tolerance??  I don't think there is anything wrong with the 3 transmitters so the error is just a nuisance.
  2. Hi guys, I'm in another project with another brand on PLC and this time I thick I hit a pretty solid wall. Long story short, I need to change a -10 +10v signal send to a DC motor drive based on a "recipe" selected with a 10 positions camswitch. I've never programmed schneider PLC, except the zélio one who are pretty simple to understand. Apparently Modicon are much more complex to program with the knowledge I have. Is there documentation available somewhere I can use to understand how to code analog output.
  3. Hey there forum guru's!!! I am trying to read through the manuals for an NX-HAD401 High Speed Analog Input Card.  It is not very clear as to where you assign your variable in order to grab a channels analog input value.  Can you point me in the right direction? I am thinking it is in the "Analog Input Values 1 to 10" and if so why is it set up as an array?  Is it because it takes the average of the samplings and uses the result as the channels input value? I am sure I will have more questions but this may clear up a few.
  4. Delta PLC Analog Wiring

    Good day all, I recently working an assignment to read analog data from sensors. I connected everything just as what the manual for sensor stated. My PLC is DVP20SX2 and the sensor data i want is 4-20mA. The analog sensor has two wires, Analog Output + and Analog Output GND. I connected the + to I0+ and the GND to the VI0-, but when I work online using the ISPSoft, I can't get any data. My doubt is the wiring. Can anyone guide me on this? Is my wiring wrong? does analog works the same as digital, where we have to connect to same COM?
  5. IC200ALG264 Analog Input module

    Hello all, Thanks for the forum which has provided me with a lot of help overtime. I'm posting my first thread since I can't seem to find an answer to my issue. I'll quickly explain the situation: I'll be installing a RTD sensor to a GE Fanuc IC200ALG264 analog input module using a 4-20mA converter. Everything is fine except I can't seem to understand the polarities of the Fanuc inputs. I'll explain better: the module has an IC200CHS022 for the terminals, 15 terminals total, and the manual is reporting a "number" and a "connection" for each terminal. Now, the "number" seems to correspond to the visible pin of the terminal. But the positive and negative symbols are represented on the "connection", which I can't seem to wrap my head around what it means. Attached are abstracts from the manual and a photo of the terminals. Please tell me where to connect positive and negative outputs of the 4-20mA converter. Thank you. Terminals Table Terminals drawing Terminals photo (front)
  6. Hello! I am new at PLC programming. I am using TM221CE16R PLC with TM3AI8 analog input module and SoMachine Basic v1.6. I am trying to scale analog input value. I am using 4-20 mA pressure sensor. I managed my wiring so that I get raw values in SoMachine Basic. But I don't know how to scale these values to usable values. My sensor works in range 0 - 16 bar. What is best way to get values? Is it PID function block or multioperand function block using equations to get range 0 - 16? I will appreciate your help.   Thanks in advance!
  7. rc01cpu and r60da4 help needed

    Hi every body, could you please help me; i have a mitsubishi plc serie iq-rwith the followings modules:powersupply r61p, r01cpu , rx40c7 inputs , ry10r2 outputs , r60adv8 analoginputs and r60da4 analog outputs. i am newbe with mitsubishi plc ;i would like to learn using the analog output of the R60DA4.for exemple i would send a digital value to the ch1 and convert it a voltage that i can mesure on the output of channel1.i have tried but i didn't succeed.i am using gxwork3.i have configured channel1 as +10v -10v output, normal mode , normal output;then i made a simple program in sfc to try this conversion but i get nothing in the output of channel1. i found that the digital value should be sent to the adress D11 wich is the adress of you will find the file i made with gxworks3.could you please help me. ANALOGOUTPUTSCF.gx3
  8. PID Loop Review

    Hi all, I am trying to set up a PID loop for a project I'm working on, and I was hoping someone could take a look at it for me. Most of what is written comes from the Q, L programming manual, but I've changed a few things so that the program can write changes to the SV as needed. The processor is a Q03UDE and the Analog Module is a Q64AD2DA, using only channels 1 and 5. Thanks for looking! PID Project.gxw
  9. GX works 3 fx5 4ad help

    Hi all, I'm trying to set up the analog on channel 1 of the fx5-4ad module. I've set my parameters but I'm wondering if anyone has an example of the ladder side in GX works 3. I'm looking to read the signal in an hmi. Thanks 
  10. SCL3(487)

    CP1L-L14DRD CP1W-AD041 Trying to scale an input 0-10 VDC = 0-10000 millimetres. My source word changes value but my D100 word does not and I get no change in the result. I have a SCL3(487) D100=0000/0 offset D101=1770/6000 X D102=2710/10000 Y D103=2710/10000 Max D104=0000/0 Min Any ideas?  
  11. Hi Friends,            I am in a requirement to control huge nearly 300 channels Analog in a system. That is through PLC i  need to give a Voltage output for 250 channels. Which Configuration will suitable for this requirement.        Is it possible?    Any difficult is their in controlling this much Analog output in PLC?   Kindly advice me..  
  12. Analog range

    CP1L-L14DRD CP1W-AD041 I have my configuration words set to #80BB for both output words with the intention of having 0-10 input. With my input voltage at 5.25 I get 6300 the maximum range. I entered the bit wise in my calculator 1000000011011101 and it converts to 80DD. Tried both those options with the same result. Can anyone shed some light on what the problem is?
  13. Hello all, I am trying to write one FB for Analog Scaling in GX Works 3 Software for my Mitsubishi FX5U Plc... Unfortunately i am not aware very much about ST Language instructions of Mitsubishi Softwares. So the Code is Giving 5 Errors, i think the error are due to incorrect data conversion expressions, Can you please correct me with my code ? Here are the Variables RAW_MIN                   Word [Signed]                      VAR_INPUT RAW_MAX                  Word [Signed]                      VAR_INPUT SCAL_MIN                  FLOAT [Single Precision]    VAR_INPUT SCAL_MAX                FLOAT [Single Precision]    VAR_INPUT AI_RAW                      Word [Signed]                       VAR_INPUT SCALED_OP_REAL   FLOAT [Single Precision]    VAR_OUTPUT SCALED_OP_INT      Word [Signed]                       VAR_OUTPUT Here is the Code SCALED_OP_REAL:=(((SCAL_MAX-SCAL_MIN)*(INT2FLT(AI_RAW)-INT2FLT(RAW_MIN)))/(INT2FLT(RAW_MAX)-INT2FLT(RAW_MIN)))+SCAL_MIN; SCALED_OP_INT:= FLT2INT(SCALED_OP_REAL);
  14. Hello there, Today i have commissioned my first project with OMRON make PLC. Model: CP1L-EM40DT1D. (CX-Programmer) I have 2 built in 0-10V Analog Inputs on the plc. for analog input no-1 i get the digital value of 0-1000 in specific plc register address corresponding the 0-10V. (Factory setup) But today on site, i have noticed that some miner value of 0 to 50 is always coming and fluctuating very fast in that register, however the transmitter are genetaring 0.0V only (I have checked using digital multimeter with high precision) PLC and Transmitter are already grounded and all the cable connections are tight as well. so how to overcome this high fluctuating value ? is there any setting to filter the input ?
  15. This is a bizarre one... CompactLogix, 1769-IF8 with 1492-AIFM8-F-5 wiring system. My client has reported several instances where one of his flow rate displays is frozen at its maximum value.  Each time, I have gone to the site, found that the value in the analog input tag is at full scale, and measured more than 20mA at the input - as much as 28mA!  I measure it using a clamp-on meter and I measure it at the input module (1769-IF8) and the external, pre-wired terminal block (1492-AIFM8-F-5).  I cycle power to the PLC.  No change.  I cycle power on the transmitting device.  No change.  I disconnect and reconnect the input (signal wire at the module or the terminal block) and everything goes back to normal.  This has happened on multiple channels on multiple input modules and with two different types of transmitters. I didn't install this system, but it seems to have been done properly and it had been running fine for many years.  These problems just started happening out of the blue. Has anyone out there had any similar experience?  This is a new one for me after more than 25 years in the business.
  16. Looking for any and all new industrial surplus and even some used on a case by case basis. Anyone have any questions feel free to email me at We also have some great deals on any items we have instock we compete on price as we are a small entity. Same day shipping available. 
  17. Analog Input Addressing

    Hello Everyone, This is first time i am using Omron's CX-Programmer. PLC-  CP1L-EM40DT1-D I have 2 built in analog input of 0-10V on PLC Board. I want to know the default resolution, Data Type and Register address to detect analog Input for my further programming. Please Help me with these...
  18. Hello! I am new at programing PLCs. I am using TM241CE24R PLC with TM3AI4 analog input module. I can successfully read temperature from 4-20 mA sensor. I want to communicate with my PC (SCADA) via Modbus TCP. For testing purposes I am using CAS Modbus Scanner. I can read digital inputs, coils and holding registers successfully. Problem is that I can't read analog inputs (#300001 etc.).  I have nothing defined in GVL list. Is this causing problem? I also don't have any Modbus TCP Slave device in Ethernet_1. But how can be all the other registers read successfully?  Please take a look at screenshots below. Also check Error message from CAS Modbus Scanner. Where is problem? Please help. Thanks in advance!
  19. Hi new to the forum, and first post, however, I have found an abundance of great information here, so I was hoping someone might able to help me with an issue.   PLC is BRX BX-DME1-10ED13-D I am trying to read an analog output from a sensor that is capable of essentially outputting a mA signal proportional to where a printed line, or contrasting edge is at in its field of view. It is used for web guiding applications to make sure the web is tracking straight, so you can identify if the line or edge is moving to one direction or the other, and correct the web with an articulating web guide. I have attached the diagram for the sensor, but I cannot for the life of me figure out 2 things 1) The power supply to the sensor is listed as follows Supply current - From fife control +/- 12vdc 50ma (+)12vdc  AND   - 40ma (- )12vdc how do you provide both (+) and( -) 12VDC for the supply power to a sensor- 2 power supplies with the the opposite polarities grounded on each?   2) The outputs are listed as "Sum" and "Differential" so apparently there are two outputs, i dont know if anyone has come across these terms relative to sensors before, but I am trying to sort these out. According to the OEM  Sensor Output Range   -20 mA to +20 mA for line guiding     -20 mA to +10 mA for edge Guiding   I have attached the pin out diagram as well as the sensor spec sheet, but I am curious to see if anyone might have insight as to how I would get an analog input reading from this configuration? Thank you in advance for any help!     224615.pdf SE-26B Product Sheet.pdf
  20. Here are some videos training PLC AB(Rockwell) RSLogix5000 I hope this helping someones! 1) Setup RSLink to connect PLC using a USB cable How to set up hardware involve Input/Output, Analog, Device Net... PLC AB(Rockwell) RSLogix5000 How to use timer/counter/Compare PLC AB(Rockwell) RSLogix5000 How to use Analog PLC AB(Rockwell) RSLogix5000 How to use RealTime-Clock PLC AB(RockWell) RSLogix5000    
  21. Some videos  show how to use Real-time clock Analog Install Hardware Using timer Using counter  
  22. FX3U Analog Programming

    Hi,  Anyone can help how to program a analog coming from a level transmitter? I have 8 analog inputs (2 unit of FX3U-4AD) to be read out into the plc program. how can this be possible. I'm new to mitsubishi analog. it is different from my experience(using siemens before).   Hope someone can help.   Thanks!!!   Marky
  23. HI I'm using PlC5/20 when I click on setup screen on the BTR block (to view the analog input configuration) i find the following message: No modules exist in the IOconfiguration for this R/G/M however the analog input signals is running properly....i just want enter the setup screen for configuration. I'm assuming that I need to enter I/O module in the I/O configuration? Can I do this without taking PLC to Program mode?  
  24. Version 1.0.0


    FB for Option Boards in CP1L-EL/EM -Configuration of the option board left-right -Scaling Selection -Analog Input and Analog Output Conf. -Tested in CP1L-EM30
  25. CP1L-EL/EM Option Board Configuration View File FB for Option Boards in CP1L-EL/EM -Configuration of the option board left-right -Scaling Selection -Analog Input and Analog Output Conf. -Tested in CP1L-EM30 Submitter MPOLITIS Submitted 07/22/19 Category PLC Sample Code