kratmel

present on this PLC (maybe Visilogic and remote connection) then only Meter RS485 / Modem RS232 changeover needed. To prevent problem with strange data comes to modem or meter i recommend relay switch. Maybe it is not perfect solution but i think it possible.

One old trick that can be used for solve problem with one communication port. If you read installation manual https://www.unitronicsplc.com/wp-content/uploads/2015/12/Vxxx_J_T38_INSTAL-GUIDE_01-15.pdf you can find Port 1 pinout table and some information below: Note that it is possible to establish a PC to PLC connection using RS232 even when the PLC is set to RS485 (this eliminates the need to open the controller to set jumpers). To do so, remove the RS485 connector (pins 1 & 6) from the PLC and connect a standard RS232 programming cable. Note that this is possible only if DTR and DSR signals of RS232 are not used (which is the standard case). If you can temporarily not read the readings from your meter, then with the help of an external relay connected to the logic output, you can switch the connection between the modem and the meters while changing the configuration of the communication port in the program. Switching between different types of modems is shown in the example from Unitronics. I think you understand the idea. Therefore, from time to time you will be able to send SMS if necessary, but during the transfer - no meter readings will be received.

I think in your case you should listen to the Ausman advice And upload a blank project before uploading the original project, as stated by Flex in his post. As many gurus have said many times on this forum - it is almost impossible to break Vision PLC via software ...

I has one V700 on the shelf and install V100-17-CAN for make foto with installed connector In this topic i post result of my experiment And it turned out that the internal circuit of the CAN card has protection against "change of power polarity".

The main question for you - why did you update the firmware? Have you added an additional unsupported by 9.8.80 feature set, servo or VFD? Maybe you just opened a project with a new Visilogic version and tried to download a 9.8.80 program to the updated PLC? At the beginning of my work with Unitronics, I read a message from Flex that the most correct is to use the controller firmware with the version of the Visilogic program in which it was created and burned. To do this, Flex has a set of versions with the ability to quickly switch. We must state the fact that developers are constantly moving forward, as they, like Henry Ford, could release the same model of machine (PLC) for another 20 years, but changes in the Visilogic environment need to modify something in the firmware - so the transition from the old program to the new version Visilogic and firmware must be justified and tested .

You did not specify which PLC was used. Therefore, I recommend adding an additional port V100-17-RS4/V100-17-RS4X to V430. This will allow you to connect a standard modem via RS232. This is probably true. However, nothing prevents you from transmitting commands to the modem via additional port RS232 port (and external convertor RS232 to RS485 if no RS232 port present on modem). Please, describe your configuration - what your existing RS485 port is used for, what modem you have, or maybe you haven't chosen it yet.

Hi, I do not use Cinterion BGS2T via RS485, but i try to read some manuals and find - it is not modbus device. RS485 is only variant of communication interface. Then you can find p.14 https://www.activexperts.com/files/manuals/cinterion-bgs2t-at-command-set.pdf and use modem via external RS232 to RS485 convertor (it is not possible to select RS485 in Visilogic modem settings). But i think - better way is to change this modem to Unitronics UCR product.

Hi, you can try to use Project Memory Map. Once I managed to exceed the allowable memory of the PLC. The PLC may not have enough memory for the whole project, but changes in the new firmware (software) versions do not cause errors. In update to 80 Visilogic version. The appearance of the memory map has been updated, improved, and now enables you to drill down into the memory allocation by clicking Analyze, at the bottom of the window Then later version has updated Memory Map also.

In general, I think that experiments with measuring the temperature with a PLC should only check the reference points and determine whether the behavior of the sensor resembles the curve of its calibration. If so, as a result, I create a variable to correct the temperature and can shift it in the right direction - up or down. In most cases, I place a metrologically verified temperature sensor on the machine next to the PLC sensor and adjust the readings according to the operating point. That's enough to make the system work. The main thing is the stability of the readings and the expected results of the behavior of the machine during temperature changes. Only once did I have to deal with temperature control with an accuracy of 0.001C. Three independent temperature stabilization systems of three zones built into each other. Therefore, I understand that PLCs are not designed for this. So it's good that you found the cause of the problem and got a stable result. I think that it would be enough to shift the measurement result by adding or subtracting a certain value. But to make a manual correction for all the characteristics of the sensor for a particular PLC does not make sense because with time and heating of the components, it will still shift.

Hi, It look like some problem in ladder. If you have project - you can find subroutine - by Ldr error code on your pic =0x00003FF0. If this error happend on working system and you do not have project - some external hardware EMI noise can do this fatal error. In this case you must ask the machine manufacturer for help. P.S. As i see some problem with internal battery appear - date and time is not current. If you have project in hand - please replace battery before project load.

I try to read Bug report, it is solved in new Vislogic VisiLogic V9.8.94 Bugs Fixed • Fonts: In some cases, fonts were not shown correctly in VisiLogic. ......... • Socket Init: if this was set to PCOM, Modbus did not work. I think something new Ethernet based is added to Visilogic after 9.8.65.... And now this changes make some trouble in "standard" application.

The same PLC program in different programming languages

Sometimes in communication with non Unitronics Modbus device register address must be one unit less than written in the documentation. That is, to read the 0001 register you need to take 0000 address. Please read this topic Joe Tauser post.

Plese read this topic And find in Help file "Vision700 - Using Ethernet"

Since you replaced the EX-RC1 module, checked the conductors (by replacing), the power supply of the CAN modules, remains the only culprit - the PLC itself. I do not recommend anyone to repair the PLC - but you are probably convinced that the CAN transmitter in PLC is probably faulty. You can hire an electronics specialist to test the internal CAN module on the PLC's internal board. There is a well-known chip 78M05 - linear power converter + 5V and CAN driver 82c250 on the PLC motherboard reverse side. Due to the fact that the system worked for a long time without any problems, I think that the 78M05 chip failed. P.S. However, I recommend - once again check the correctness of the power connection (not reverse polarity) and the correct connection of the СAN bus wires. Sometimes the system stops working after someone else's intervention, which is unknown. And we have to look for a problem in places where there are no mistakes.

Is it +24V and GND wire connected and powered on V1210 and EX-RC1 CAN bus power terminal (5pin green connector)?

I use V1040, V1210 - it have the same resolution. Sometimes i swap this panel with V700. You can convert HMI screens from V1210 to V700 by symply change PLC type in HW configuration. But you must do manual resize and shift for all present grafic in V1210 projet. Please do some test and you see - what elements is lost when you change PLC type. Then you can see how to change all Displays for convertion without any losted item. After change PLC type you can correct resized element position for best design. If in your Visilogic application do not present Ethernet communication and add-on card for Ports - all project can be shift to V700.

As i see in PLC output configuration - you use VFD in machine setup. In some case VFD can generate EMI noise. PLC can do something wrong when machine work on fast speed with high EMI noise level. Correct grounding, shilded motor power wire and grounded -24V wire on power supply can solve many problem with PLC.

Hi, standard LDR sensor working resistance 50-100K. Samba RTD input works with approx 100+- Ohm. Then you must use some external cirquit for convert LDR resistance to 0-10V or 0-20mA signal. Something like https://www.electronicscomp.com/ldr-light-sensor-module-india can be used, but it powered by 5V DC and you can use only half of 0-10V range.

Hi, after OS update process we can find normal updated PLC, not updated (update filed but PLC in working condition), not updated - PLC is not started. Standard update process: https://support.unitronics.com/index.php?/selfhelp/view-article/upgrade-or-downgrade-unistream-panel If PLC do not start: https://support.unitronics.com/index.php?/selfhelp/view-article/rescue-procedure-to-recover-unistream-panels If you have problems with standard update - I recommend changing the USB DOK to another new one from another manufacturer. If the process of updating a new PLC has not taken place - you can change the PLC to a new one under warranty. If your attempts are unsuccessful, and you can't quickly replace the controller - I recommend contacting the manufacturers - they have quality online support. https://support.unitronics.com/index.php? Qualified Unitronics employees can remotely check the upgrade process and fix your problem.

Please post your Visilogic Version. I try to simulate this issue on my 7' Samba.

Please try to Set RTC, Initialize & Reset via "Communication and OS" and Download blank project to PLC. Then load your project. If this option not help, i recommend to open ticket on https://support.unitronics.com/index.php.

Min value is 120 > max value 5. It is strange.

I agree, I may not have fully understood the problem. It just so happened that I usually have one monitor. Although with two (or three) is probably more convenient. Also my favorite ... This is a stable version with predictable behavior.

Please read this topic...