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Found 9 results

  1. Hello, Does anyone know of any problems with including both a Modbus Config and a Protocol config for the same COM port in the same program? I'm talking to a peripheral device which under certain circumstances may need to be sent an ASCII Protocol command to switch it to Modbus mode, so I will need to be able to do both types of communication in the same program on the same port. Can the two coexist, or will I need to re-execute the appropriate Config block when switching from one communications mode to the other?
  2. Hi, How many serial connections can I have on a vision series PLC? For example I want to attach a modem on a V130 in order to remotely send commands and at the same time I want to connect an LED screen with an RS232 connection in order for the PLC to send commands and write on the screen.
  3. Hi All - I am working to connect a barcode reader to a Vision 120 PLC via RS232. I have two barcode readers on hand - a Motorola Symbol LS4278 (which reads 1D and 2D codes), and a 1D-only Royal PS700-LSR. Both readers are set up the same way - serial cable with external power input into the scanner, connected to the PLC by a DB9 to RJ45 adapter. When connected to a Serial-to-USB converter to the computer, both scanners send the same data to the Serial Terminal (I am using Hercules). But when connected to the PLC, the Royal scanner data is read as expected, but nothing happens when sc
  4. Hey guys, I'm often needing to use advanced modbus features because ill need to have dynamically adddressed slave ID's, or changing registers etc, etc and i cant use the built in configuration to do so. Also - the Advanced modbus still require a good bit of logic to be built in order to achieve a good Tx and Rx. I built this UDFB to be used as a single operation which accepts 4 Function In parameters, and one Function out. Example Ladder Note how the function is called, Param 'D' must be reset immediately after the function call: Ladder Image Input A is a struct with
  5. Hi! How to change Unistream UAC-01RS2 module RS232 serial port communication parameters within ladder function? Connected serial device (Kamstrup Multical M66 type energy meter) use different baudrate for Rx and Tx communication. I need to swap Unistream serial port baudrate between 300 for Rx and 1200 for Tx to get data from energy meter. Also Unilogic serial port configuration allow minimum baudrate only 1200, but there is a need for 300! In Visilogic it is simple, there is a "COM Init" function block for this purpose, that i can use within ladder. How to resolve it within Unilogic l
  6. Hi everybody, Greetings to all, another newbie here... Having some issues on getting Modbus RTU messages to work on JAZZ PLC. My setup: 1) JZ20-R16 PLC with MJ20-PRG adapter (?) plugged in it. I'm using MJ20-CB200 cable (RJ11 plugs on both ends) and MJ10--22-CS10 adaptor (DB9 female connector). Using this gear I can query the PLC with modbus RTU messages over RS232 serial line. Serial line settings I use: 9600bps, 8(data bits), none(parity), 1(stop bits) 2) Gemalto modem (BGS5T) as a modbus master. It has DB9 female connector on it as well. 3) Serial to USB converter c
  7. Hello, I have a .net application that connects to a 570 via RS-232 using System.IO.Ports.SerialPort. Normally, it will connect. However, when playing with different baud rates, it sometimes does not connect until I connect the same PC with any Unitronics software (Visilogic or Remote Operator). My question is this: With VIsilogic, it appears that you can define the baud rate to anything in the connection properties and it always connects. How does the controller adapt accordingly? I think "out of the box", the rate is set to 115200. If I change my application to 57600, it failes to
  8. Version Document

    765 downloads

    Use to troubleshoot communication between PC and PLC
  9. Hi, I'm having trouble downloading my application to a new and clean V350-35-R34, it fails over both serial and ethernet. Loading Bin. Lib, Boot, OS and Sync RTC works fine. My UDC file contains the following, and I'm trying to execute using UniDownloader v. 4.1.02: Bin.Lib v. 2.1 (02) BOOT v. 2.1 (06) OS v. 3.0 (67) Sync. RTC Application As said, I'm able to download Bin.Lib, Boot and OS. I then do Sync RTC fine, but when trying to only execute the application item to the PLC it says Application failed. This happens during: Status: Downloading String Lib to PLC. The UDC file is 628k
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