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Showing results for tags 'profibus'.
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Hello, For a new project, I’m actually trying to establish a Profibus communication between a V350 (slave) and a Siemens PLC (Master) S7 315-2DP. V350 (Slave - Address 3) -Profibus card is installed (V100-17-PB1) -OS is up to date (comprises a Profibus card) -Connected with a Profibus cable with Siemens connectors (terminating resistance connected) -Profibus configuration block on the main routine with SB2 (power-up task) -Status message = 0 -Error message = 1 -Profibus card detected : SB178 = 1 Siemens PLC (Master - Address 2) -Configured with UniProf.gsd file -Test with only 16 Int in Read and 16 Int in Write -Test with all Bit and Int in R/W … and no communication Can you advise me something ? or maybe do you have project example or documentation.. Thanks. Best regards, Fab
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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.