Eric Miller

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About Eric Miller

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  1. We have a project that has existing proportional valves and joysticks that they're using. The customer wants to eliminate the controller/driver module and just use a proportional valve with Onboard my question is how do i create this signal/voltage from just a 24VDC power source?Their existing joystick setup is a -10...10V signal. I don't know the ohms of the joysticks yetdata sheet for prop valve as attached as well as schematics for their joysticks
  2. NX-DA2203 need additional power supply unit?

    great info, thanks! any idea where this is documented in the Omron literature?   i got their current PLC layout and there's already a power module on it so i think i will be ok to add these 2 more slices   (current PLC layout) NX1P2-9024-DT1 NX-PF0730 NX-AD2603 NX-EC0142 (adding these 2 slices) NX-DA2203 NX-EC0112  
  3. I'm not really familiar with Omron PLC's, but i was looking thru the data sheet for the NX-DA2203 and it says it gets its power from the NX bus. but the wiring example at the bottom shows that an additional power supply is needed? do i have to use the additional power supply unit' or is it powered from the PLC bus? website: Omron NX-DA2203 data sheet:      
  4. ok, I think I found the cable that I need? It is a Beijer CAB30. I will have to call them to confirm tho! I attached some info for that cable, haven't been able to find a pinout for it yet... I will take some connectors to make my own cable as well, just in case Does Omron just need the RX and TX pins connected? or does it need all signals to communicate? Thanks for that info!  
  5. Does anyone know if it is possible to test RS232 communications across a virtual serial port(or any other options) using CX-Programmer?  I have to go do a start-up on a unit and I will not be able to get my hands on any of the the devices until I actually go out to the customers facility, so I would like to test the programs and communications settings between the 2 devices somehow here at the office before I go out to the customer faclities... It will be an Omron CP1H PLC communicating with a Beijer touchscreen via RS-232. I believe i just need a straight DB9 cable with a Null Modem Adapter (not sure of any dip-switch settings yet?). The Beijer touchscreen has an Online Simulator (screenshot attached) that lets me choose the com port to use for the communications, which I was hoping to use to communicate with CX-Programmer (screenshot of serial settings also attached) Touchscreen: BEIJER PWS6710T-N  LINK to website PLC: OMRON CP1H-X40DT1-D    with a serial/RS232 adapter: OMRON CP1W-CIF01      Not sure what all details would be needed for this, so if i missed any let me know!   Thanks! Eric
  6. what is this instruction?

    I thought I'd be able to get around it since I'm not actually hooked up to a PLC. But I am still confused a bit tho. Where does that X:2009.04 address actually come from? I have found it in the program but don't see anywhere where it would change state of that bit?  ***I have attached the full program that i am working on*** I am also having trouble with this section of code. I think it's just the CMP and P-GT instructions in rungs: 4, 12, 21 that arent working? they should turn a Water Cooling Solenoid On/Off, but they're not. in the attached picture 60 is NOT greater than 70 but im still getting a true bit out of it? I set the Oil_Temp D148 to 85(degrees) so its higher than my Minimum Oil Temperature and the Cool1_Solenoid goes high as it should. but once i lower the temperature back down under its SetPoint of 70 (Task: CIR_COOLING, rung 4), the compare statement doesn't seem to update?   to start this program, must 'fix' the Oil_Temp D148 in task: ANALOG_SCALING (bottom of rung 5) and change D148 to at least 80 (minimum temp set point). and also set the Oil_level_Low_Low and Estop on rung 1 Local_ModifiedCOPYof_A-2675 V1.07.optLocal_ModifiedCOPYof_A-2675 V1.07.opt Local_ModifiedCOPYof_A-2675 V1.07.cxp      
  7. what is this instruction?

    thank you! i was hoping for an easier way, but this works!
  8. what is this instruction?

    Perfect! thanks for the quick replies and help! I found the instruction and think I am good to go now. I hadn't copied the line with the DIFD symbol to the new section yet. As soon as I did that and changed the symbol names, everything looks right now!   I started running this using the Work Online Simulator and it seems to be functioning properly!   one thing I haven't figured out yet is how to 'set the value' in here. This is for an analog input for a fluid temperature and i wanted to test the code that i've done for multiple Temperature setpoints. i tried setting the value in the attached picture but it didn't hold (i'm assuming it only sticks for a single scan of the program?)
  9. what is this instruction?

    I am new a entry level programmer that has never used Omron before. I am attempting to added a little bit of code to an existing program but cannot figure out what one of the instructions are that was used in the original program. I've tried searching for it in the manual and online and haven't had any luck finding it yet. i attached a snippet of the symbol. It looks similar to a closed contact but has 2 lines on the right side of it (symbol W75.11   Temp_Turnoff_Second_SP) When I click on it, it says ANDNOT. but when I try to create a new symbol, it does not look the same as the original? I created a new symbol Temp_Turnoff_Third_SP, but it shows up as a normal closed contact. if i try to edit the original contact, it also changes to a standard closed contact.   what am i missing here...?