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Swervo, there are so many different styles of schematics you'll have to decide in the first place which way you want to go. To me it is personal preference. There are different names world wide for different style types. I actually hate modern style "line diagrams", "riser style" as I find them counter-intuitive and hard to understand at a glance, as you need to constantly reference descriptions. I much prefer older style where the entire layout and connections are visualised. Sometimes these are called pictorial, maintenance, schematic. This link https://www.nrc.gov/docs/ML1025/ML1

Oops, forgot a step. Need to do the Store Timer/Counter Preset after the addition.

For my Aussie buddy:

You seem to be mixing up contact and coils. Also in your second ladder rung you have two separate logic threads. Do not do that. Further, that second logic thread is screwing everything else up - you are forcing MB 3, O 2, and TD 1 on all the time. I would do that part this way: This is not clear to me. It looks like you've left out a step as you state that the first valve closes then you immediately say it opens again.

Hello, I can solve my problem setting the G120 parameteres like the information of the table (parameteres marked in yellow) Best regards! Mario

Hello, The observed delay is due to the fact that DTI file is now digitally signed. Starting from next UniLogic version (1.31), the "Store DTI to file" will include a new input controlling whether or not the file should be signed, which will give you a way to suppress that delay. Have a good day!

Combine Aus idea with linearization, some compare nets and PWM can realase visual effect with normal blink, fast blink before end of time and constant LIGHT when time is over. As for me normal blink must be active at the all normal process time. Faster blink must be active only before time near finishing and this blink must not befaster then twice as normal. I build this idea on plastic welder machine. Only one GREEN LAMP and two button is present on operator panel of this old machine. And user know when process go to the end by fast lamp blink.

Kratmel, I think the need is for the blink speed to increase as the timer runs. So as the timer nears finishing it is blinking quickly. Alighz, I would be doing this using a toggle coil whose input is controlled by a self-resetting count that reduces the reset number as a direct inverted linearization of the total timer time, as the time elapses. Also be aware that ideally you can't use a relay output for this, transistor output would be preferable. Plug away at that concept and see how it goes. cheers, Aus

You can use PWM FB for generate different ON OFF condition for one output. You can manipulate PWM in range 0.0% ---100.0% (0--1000) and Duty Cycle in steps of 0.25ms (400=1sec). If you set PWM=500 and change Duty Cycle for example from 1sec (400) to 0.5sec (200) - you can see slow and fast blink. If PWM=0 lamp go OFF PWM=1000 - lamp go to constant light.

Hi, When use mechanical switch, then it's contact(s) "bounce" when fast change it's position. Normal Digital Input has internal filter, which "neutralize" contact(s) bouncing.HSI has no such filters. You can use button on PLC display to start timer and generate fixed length output pulse. Use this pulse as input for high speed counter. Then everything should work as supposed. B.R.

Now in standard configuration you have only ONE com port1. This can be used for USB connection (Visilogic) or for Modbus connection via RS485. Simultanosly use for Visilogic connection and modbus is not possible for ONE port! Now after Ethernet card installation you can connect to Visilogic via Ethernet. Correct IP and PLC name must be entered to Visilogic Communication & OS settings. Then you can use PLC Port 1 for Modbus. Please note - RS485 must be set by jamper inside PLC. Correct wire A and B must be connected to RS485 port. Only after correct hardware setu

I recommend to do table of component that you use in your installation. And sort it by manufacturers. Then visit site where this component (free or not) element database present, You can see what software is suported by manufacturers. Then try to check licences price for this software and futures provided.

OP mentioned V700, so this is not UniStream. Moved to the correct forum. Some of what AlexUT mentions also applies to the Vision products, so that response is relevant. I'd also add that likely the program running on the V700 is trying to write to the SD card. @Bledineeds to make sure there is a properly formatted card in the SD card slot and that the card is 16GB or less. If you believe that you have done this, try a different card and make sure it is formatted with the FAT32 file system and that the proper directory structure has been written to the card. The best way to do this is

Hi, Please visit unitronics Helpdesk Portal and search for SD word: http://support.unitronics.com/ You can find number of articles. Review next: What brand of SD cards can UniStream PLCs support? What is the SD maximum size? Does it support SDHC? https://support.unitronics.com/index.php?/selfhelp/view-article/what-brand-of-sd-cards-can-unistream-plcs-support-what-is-the-sd-maximum-size-does-it-support-sdhc UniStream SD cards- Must I format an SD card in order to use it with UniStream? https://support.unitronics.com/index.php?/selfhelp/view-article/unistream-sd-car

Modbus TCP would be the way to go. Get an Ethernet card for the V430 and set it up as a Modbus Slave. I did a quick search an found a Python Modbus library called pyModbus that should work for you. Joe T.

orso2p001 Is you link for Linux-like PCs? "#!/usr/bin/env python" damiankk - How about to use SQL database connection? You can create data table and add records with time stamp. Then use this information as you wish. B.R.

hi damiankk, in my opinion with 100 variables you can use the modbus way...what you have to be sure is that at the PC side the python scrip has to use an asynchronous method. I am not so deeply inside python but I found THIS example about how to implement an async modbus_TCP_client.

I have a unistream running my entire house, i use vision plcs around the home in different outstations using wifi to communicate the modbus, ie temps of rooms, lights etc. It also controls my pond pumps and sensors. This cuts down on the wiring running around the house dramatically. I use a vnc prog that is constantly running on an iPad in the hallway. It works really really well. Steve

Please see correct MODBUS addresing for G120 https://cache.industry.siemens.com/dl/files/159/99685159/att_83708/v1/G120_Field_busses_FH17_0414_eng_en-US.pdf You use 111 address for reading, maybe it is wrong. Please see on p.101 modbus telegram format and use correct 110 as equal to address 40111 (for 40110 used 006D hex = 109 dec in telegram example)

What is the I/O module the encoder is connected to? Typically on a V570 you use a Snap IO module which allows some of the inputs to be configured as encoder type. These are automatically high speed and take care of the rising and falling edges for you. Joe T.