Hello,
I am trying to establish explicit messaging between a DX200 and an Omron CJ2M plc. I want to read and write a value from several D registers in the DX200. I already have Ethernet communications running between the two, exchanging 32 bytes in and out of I/O. It is just the command set up that I need help with. Contacting Yaskawa I received a worksheet for a Rockwell PLC, but it was in code and not readable unless loaded into a Rockwell plc. They were currently unable to provide further assistance. Any help would be greatly appreciated. I did a little more digging and found that I need to issue a CMND (490) instructi0on from the PLC. I will work on it more today.
Explicit messaging
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tiredold -
September 23, 2018 at 10:43 AM -
Thread is marked as Resolved.
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What are you trying to read from these registers; Job number,Pos Offsets,... ?
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I am manually changing the value of an "adjustment" to an Accufast II position value. It lets me tweak a weld position on the fly without having to alter the weld program. I currently do it by entering values on the teach pendant, but I want to keep the operators away from the pendant to prevent erroneous data or wrong register altering. I almost have it, and should be done by the end of the week. It is mainly an Omron issue. Similar to setting up Ethernet communications (which I use to monitor and alter I/O values now), just different format. Secret was finding the correct Omron command (CMND 490).
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There is no direst link between the robots variables and the robot I/O, you have to move the data in a variable to output groups that the PLC can see. You still have to do this in Byte format because the robot is on an Octal system and only processes 8 bits at a time, even with Explicit messaging.
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Hi, I am new to Omron PLC Platform & Yaskawa robots...!!!!
I have system with 1 PLC currently fetching Data from DX200 Controller, but it's Overloaded so need to establish Parallel link to that with separate Dedicated Data PLC which is of Omron CJ2 series.
Please help me to establish Ethernet/IP Communication between PLC & DX200 & also help me with how get data through explicit messaging.
I have started studying Yaskawa Manual HW1481985 & Omron PLC Instruction help for CMND command but it's difficult to understand.
Looking forward to get help...!!!
Regards,
Gaurav Shah