Can you please recommend to the hardware to use for the MODBUS that work for Universal Robots?
MODBUS Hardware?
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Chocobotic -
January 8, 2015 at 9:16 PM -
Thread is Unresolved
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Automation Direct sells a pretty good modbus system that works with Universal Robots. We used part #s T1H-EBC100 (the ethernet base controller), T1K-16ND3 (16-point 12-24 VDC current sinking/sourcing input module), and T1K-16TD1 (An output module with 16 points) You also need to buy the bases that these modules connect to. All in all i think we paid less than $500 to add 16 inputs and 16 outputs to our robot.
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Another option is from Phoenix Contact - P/N 2832962
Requires free software to set up IP, but is essentially plug & play.
This unit is 32 I/O - 16 fixed inputs, and 16 configurable inputs or outputs. -
Something to think about with Phoenix (most of their Modbus I/O anyway) is that they only accept function codes for reading registers, not reading individual bits (individual inputs/outputs). So in the UR you would have to read a register and then do some programming to parse the individual bits.
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That is very true for most - we have tried a few Phoenix Modbus units (we are a distributor).
The unit above does work as you would expect, without parsing. I believe it is the only unit that works right out of the box from Phoenix (once the unit is set up with an IP).
We are currently working on getting one of the modular units to work, but haven't had any luck yet.
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I am about to test a Phoenix contact Modbus unit: AXL E ETH DI8 DO8 (2701532). It is advertised as having bit level read/write functionality. The only caveat is that it is their IP67 rated unit. So it will be more expensive than standard, and less modular in terms of "block" I/O
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We have had the best ease of use with WAGO product, we tried several different Pheonix systems, even had their engineers in our facility and even they had issues getting the system to work as easily as the WAGO system does. We use the 750-352 fields coupler, nice thing about this unit is it has pass through ethernet so that you can connect it to the robot and to the network and not have to have a separate switch.