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Found 11 results

  1. Hello, I have an issue reading the values of HSC by Ignition SCADA. PLC type: SM35-J-R20. Shortly, there is a simple logic calculating the total output from the machine, PNP proximity sensor is used to measure the number of the passing products, and it is connected to HSC input of the PLC. SCADA monitors the current and the previous value of the counter, and in case the counter has been reset when the batch is being changed (the previous value is bigger than the current value), the previous value is memorized and it is added to the current counter value, at the same time a tag val
  2. Hi. We installed 3 x V570 plc's running on ethernet network. Also connected Indusoft scada system to system. Delta vsd run also on same network. All working fine and then sometimes comms to scada stops. Also comms to VSD's not constant. If comms to scada laptop fails we have to restart plc's to get comms again. Any suggestions or help will be appreciated
  3. Hi I am trying to connect a 350 PLC with Inductive Automation's Ignition SCADA using Ignition's Modbus TCP driver. The PLC program image is attached. I do get a connection established in the Ignition software to the PLC but I can't read any tags. The following are all the settings I have in the Ignition SCADA I have tried Ignition's Modbus TCP, Ignition's Modbus RTU over TCP, Kepware's Modbus TCP driver all to no avail. I already have 2 other PLCs connected to
  4. Hi, I have two Jazz JZ20-J-T40 PLC-s, and one V130-J-TR20 PLC. I am using zView SCADA. I tried to connect them via Ethernet by using switch, but I cannot use two different PLCs on this SCADA. Then i tried to connect them to SCADA via uniOPC, but communicating is just too slow. I have just one bit that goes from 0 to 1 in 0.5 seconds, and back to 0 in 0.5 (1 second pulse), just for testing, still it's too slow. It runs normally for like 2,5 seconds, and then just stops, and changes in 4-10 seconds, or just freezes for 2-3 minutes, and then changes. My PC Spec are
  5. Hi, I'm using Unitronics PLC JZ20-J-T40, and ZView SCADA. I have successfully downloaded my program into PLC, and tested communication via usb (Serial), and via Ethernet (MJ20-ET1). It's all working properly. Problem begins when i try to connect my PLC to scada PC. With USB everything is working normally, but it's not an option for me to work with usb connection. I want to work with Ethernet communication between PLC and SCADA. What should i do to make it work? Regards Nikola Ljubinkovic
  6. I'm developing SCADA graphics, and was just supplied with an address list from the PLC programmer. After looking over manuals/webinars/forum posts I'm looking to get some verification on whether I got the Modbus addressing correct or not. This is my first experience having to interface with an Unitronics PLC... I'm used to AB or SCADAPacks mostly...
  7. Hi. Try to read values from v570 on modbus tcp from omron cx supervisor scada. When i view port on plc it show that it is connected but dont get any values in the omron scada. Any help from some one that used omron scada with unitronics. Thanks.
  8. Hi all, I am looking for the input/output modbus address range of the expansion module "io ai 4 ao 2" for the V430. How do I go about finding these digits? Thanks in advance. D
  9. Hi to all, Is there a way to monitor the tag values in UniOPC? I can communicate the v350 to its visilogic simulator and view all the tag values, but I need to know if the UniOPC sees the value and pass it to the SCADA connected. My problem is that the SCADA(iconics) always show an uncertain quality and a value of zero which is not the real value. Now, I would like to eliminate if my registration in SCADA is wrong or I have a problem in UniOPC(does not submit the value to SCADA). Whenever the SCADA run, it successfully add the tags I registered, but in SCADA software, I cant obtain the PLC
  10. Hi all, I have a question regarding slave adressing on Modbus. We have a V130 which we want to use as a slave on a Scada system. When I read about slave adressing in the help file the pointer value offset is given for each data type, no problems. However, when I read the examples (and also different topics regarding modbus here on the forum) another offset seem to occur. For example when writing a 3-bit vector of outputs starting at O8: "SCADA as the Modbus master to color PLC: Convert the HEX address to DEC. In the SCADA application, set the Slave: Start of Vector parameter to 46393 (3000
  11. Good day to everyone! Got an issue trying connect to v1040-t20b via modbus serial. I'm initiating data exchange through usb port (and starting to realize that, eventually, there is no any response from Uni, 'cause com1 supports only PCOM). Than i looked through info mode menu: com1 - pcom, com2 - pcom, com3 - modbus. And at the side panel there are port1 and port2 only. So, there is no such as 'port3' or... com3. How can i configure usb port to recognize modbus commands?
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