s.pratt

Hello, The SA\RES-121 is a 121 ohm terminating resistor for the CANbus network. If our PLC will the a physical end on the CANbus network, you must place this 121 ohm resistor across the DATA lines to terminate the network. You can see a disgram of this wiring with the terminating resistor in the help files of VisiLogic. Networks (CAN, Serial) \ CANbus Networking. There is a green link for the Wiring Diagram - click on it to view this section. Hope this helps.

Hello Dave, Could you please e-mail into support@unitronics.com about this request?

Hello Lawry, Are you referring to the V120_Backing_up_a_HSC example? wwe have tested here with our encoders and the example seems to work with both an ML or a DW linked to the input. Could you provide your application for us to review?

Hello Lawry, Your first issue has now been resolved and the fixed has been released in the latest software reslease (today) of 9.8.22. Could you explain the second issue a little more? How do you have the ladder programmed for this? Are you just trying to retain the last position before power down?

Hello, Are you trying to communicate with the unit via U90? You may try to reset the communication parameters back to their default settings in info mode. You can enter inifo mode by pressing and holding the ( i ) key for 5 seconds, then searching the "system" options for the RS232 parameters. You should then be able to connect in U90. To change SI141, you will need to do so through the program or while you are in Online Mode with the unit.

Hello, Are there any other coils for O4 in your program? It may be an issue due to the sequence of operations. Please ensure you only use one coil per operand (Output/Bit) in your program.

Hello, When deactivating the PID run block, the CV will remian at the last laculated value, unless you store something else to it. No calculations will be made and the CV will not react to the PV. The pause I&D calculations will still allow the PID loop to run with only a proportional value - so the PID will still calculate a proportional value for teh CV relevant to where the PV is located. However, it will not calculate an integral and derivative value. So if there is a large disturbance to the system that the PID loop will not be able to regulate or allow the system to get to the set-point (until that disturbance is removed), pausing the I&D calculations helps because it does not generate integral error and go into an integral overflow fault. Hope this helps.

Hello Tom, Run-time errors are usually caused by the Windows OS restricting our software from running properly. Please ensure you are running the software as an administrator by right clicking the icon, choosing the properties option, and checking teh option "Run as administrator" under the compatibility tab. Please let me know if this works for you. If you still are unable to connect, please try calling me again directly, and leave a voicemail with a time and date that I may contact you back if I am not at my desk. We can provide further troubleshooting via the phone.

Hello Tom, I have tried sending e-mails to you, however my e-mails will not go through to you. You may need to search for "Windows Firewall" in your Windows search bar via the Windows start button. Then, choose "Allow a porgram of feature through Windows Firewall" on the left hand side of this window. Find DataXport and make sure all sections (or atleast the sections you are using) are checked off (Domain,Home/Work, Public, Group Policy). This may allow the PLC to connect to your PC. I was able to succesfully run your program here with no issues. Please give me a call at (617)657-6596 ext. 7908 for further questions. I would like to know if your incrementers are incrementing, and if you are establishing a connection, but not transferring the data.

Hello, Although the numeric box does not show in exponential form, the register still contains this value. So if math or some other function is used with this register, you will see the result still adjust according to its value. As a work around, you can convert the number to ASCII for displaying purposes. This will give you a verification that teh number was entered correctly, or the resulant value is correct. As of now, the UniStream display of exponential numbers is on the features list for UniStream development, as well as the addition of the exponent button on the numeric entry windown. You should see this update in the upcoming releases of UniLogic.

Hello Dave, I have not seen or know of an applciation where it was necessary to cerate a log file mutliple times within a minute. Do you have a scenerio where this would be necessary? As a work-around for the mean-time, you could create multiple data tables on the PLC (DT1, DT2, ... DTX) and then sequence through to log each data table according to your interval time. Please let us know at support@unitronics.com if you come across a need for this DataXport application.

Hello Meeg, I am able to see the conditions you are referring to. I am inquiring our team about this issue now. I will reply with an update soon.

Hello TomD, You may either upload the program here (we should only need the VisiLogic program) or send the two projects into Support@Unitronics.com. The SB should connect and stay connected, unless specified somewhere in your program to disconnect. You can troubleshoot this by adding and incrementer on the end of the rung, and seeing if the incrementer increases on the ladder at question. So if you are curious if SB150 goes high, put a positive transition contact in series with and incremeter to see if there is a connect.

Hello, What series controller are you working with? You can link a numeric entry on screen to a REAL or Memory Float which will allow you to enter exponential numbers. The range supported is from -3.402E37 to -1.176E-35 for negative numbers and 1.176E-35 to 3.402E37 for positive numbers. Hope this helps.

Hello TomD, As long as DataXport is running and in listen mode, you should just have to perform a TCP/IP socket connect to the specified port of DataXport. Upon successfully connecting, the file should transfer automatically. Then you would disconnect the socket, and wait until you wished to transfer another file. But overall, the file should transfer upon first connection to DataXport. Please let us know if this is not the case.

Hello, Does you device have a specification sheet that explains the protocol layout of the SSI protocol? We do not directly support this protocol, but we may be able to program it. If you can interpret this protocol, we may be able to program the UniStream to work with this encoder. We can move the RS485 buffer to a buffer tag dependent on three conditions - amount of bytes received, a time frame, or an end of text character. Please let us know and we would be happy to assist.

Hello Moran, ORSO2001 is exactly correct. The actions are a touch property of the button, so will only be activated if the button is touched. I would move the two actions from your binary image, and add them to the actions of your Start Simul button, just as ORSO2001 has mentioned above.

Hello, You should be able to change this directory through the Project tab. Project > Excel/.csv File Properties..

How do you currently have this set up? (Actions/Links) Can you attach your example for us to review?

Hello Lawry, The touchscreens are only capable of interpreting one touch (there is one x-coordinate and one y-coordinate). If two points touch the screen, it will average the two touches and point to the averged x and y coordinate values. There is no bit that will allow you to ignore a second touch as it does not have a way of interpretting when there are two touched points.

Hello Moran, Are you trying to make the button appear to be pressed via the ladder? If so, you may want to use a binary image variable instead, and link the action tag to the link for the binary image. Then you may address the link in the ladder. Please let me know if this helps.

Hello, Could you please describe or show a picture of you ASCII string settings? How are you triggering the refresh bit in your program?

What other communication lines does your end devices support? Can you add RS323 to RS485 converters? As cantcliff has stated, RS232 is point-to-point only - there is no way to address multiple nodes. You will need some sort of third party device to communicate to multiple devices with RS232, such as an RS232 to RS485 converter.

Hello, The warning you receive explains that the programmer did not enable the option for you to upload the project. The VisiLogic project file cannot be retreieved from the PLC.

Hello, You are trying to obtain the program from the PLC? If so, you may try to "Upload" the program via the Connection tab in VisiLogic. This will upload the program from the PLC only if the programmer enabled the uploading process when they downloaded the application to the PLC. They may have passowrd protected the upload as well to protect their intellectual property; if so, you would need the password to obtain the VisiLogic project. If they did not download with enabling the option to upload, or if you do not have the upload password, there is no way to obtain the VisiLogic project file from the PLC. I hope this answers your question.