Recent content by uzangiworld

  1. U

    AC80 to AC800 PEC upgrade

    Need an expert to guide on obtaining the source code and then using it in an AC 800PEC PLC
  2. U

    could it be a modbus or instrument wiring issue

    Thanks David its indeed a Modbus issue. We tested all the 6 temperature sensors electrically, all ok. and they are able to display on the polling station. From the polling station an rs485 cable runs to a moxa switch which has inputs for other modbus devices. The switch then terminates to an S7...
  3. U

    could it be a modbus or instrument wiring issue

    Good day I am wondering if the problem i have is the hard wiring or the modbus comms. I have a couple of temperature sensors pt100 reporting to a temperature polling station. Then the polling station reports to a siemens s7 400 plc via RS485. The problem is 6 out of the 18 temperature sensors...
  4. U

    GE Pac system RX3i Ethernet Network Interphase Unit has a system fault

    Good day All Thanking you the for the inputs. Had to troubleshoot with site team via whatsapp. Turns out the power supply was okay but after replacing the IO modules that where burnt they put an AI card with the wrong part number. After replacing with the right AI card the error disappeared
  5. U

    GE Pac system RX3i Ethernet Network Interphase Unit has a system fault

    I will get back to you on the results am communicating with a team on site the station is 900km from where i am
  6. U

    GE Pac system RX3i Ethernet Network Interphase Unit has a system fault

    Oh thanks alot for the valuable contribution
  7. U

    GE Pac system RX3i Ethernet Network Interphase Unit has a system fault

    Thanks for the quick feedback non the ENIU is part of a remote I/o for a scada system for some power station. They had a short circuit on a power mcb , three i/o's where damaged including part of the backpane. The backpane and the three i/o modules where replaced when the reote i/o was powered...
  8. U

    GE Pac system RX3i Ethernet Network Interphase Unit has a system fault

    Good day attached is a photo. Anyone know how to clear this system fault
  9. U

    Replacement Multimode Fiber Switch 10 base FL

    I have an old ABB control network in our plant using masterpiece 200 controllers riding on a serial network called masterbus 300. One of the two multimode fiber ST, 10 base FL switches connecting the controllers to the a windows 2000 server via an optical to electrical convertor failed. So am...
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