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Found 3 results

  1. I would like to communicate with an instrument that is using Profibus port to read analog and digital values. Is it possible to use an an external protocol converter with the Unistream (RS485 or CAN) port to connect to Profibus Slave device ?
  2. Hi, Would someone explain me how can I send correctly variables type REAL (MF`s) over Modbus-TCP? I am working with a PLC V1210 with Internet card V200-19-ET2, it talks to an Anybus X-gateway ( AB7629-F) which is Profibus-Master and Modbus Slave then the Anybus will send the data to a Nachi Robot CFD controller. I already set the comms between all devices and I can send/receive data to each other. My problem starts when I try to send the variable with decimal point (i.e 1.5) to the robot. But let me explain where I have got so far. Before send it to the robot I get the MF0 and copied to a DW0 variable with COPY MEMORY function with the following parameters: COPY MEMORY FUNCTION MF0 = A 0 = B DW0 = C 0 = D 4 = E When I store the value 1 to MF0 my DW0 displays the value 16256 and the Robot gets the same value 16256. However when I start to change the values into MF0 the robot starts receive different values. I have tried many things but I believe I have missed some information in terms how to convert these variables type. Obs: The robot program side gets block of 32 bits and then convert to a DINT variable and after that /100 and store the result into a variable type REAL with decimal point. If there is anyone who could give me a explanation how to deal with this problem would be great. Thanks for now and this is my first topic. I already set the comms between all devices and I can send/receive data to each other.
  3. Hello everyone, I have been trying to connect a V 350 plc throw a profibus communication with a S7300. Despite, I use the profibus block in the visilogic and I installed the gsd file into the step 7 program I could not connect successfully both PLCs. Any advice about it? regards andres