FAQ: Does Yaskawa supply an EDS file for the MP940D (DeviceNet)?
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Yes. However, the MP940D DeviceNet I/O is fully configurable (from one byte to 256 bytes in & one byte to 256 bytes out), and is considered a "communications adapter." An EDS file is not really necessary, because the MP940D does not have fixed I/O configuration, nor does it require explicit messaging for set-up.
There are three example EDS files attached in the zip file. The first is the "official" EDS file that contains no data regarding I/O configuration. This is the file the ODVA certified file for the MP940D. The I/O must be configured properly in the MP940D and the attached Master (or slaves if the MP940D is the master).
The second and third files were created as examples with Rockwell's DeviceNet manager software as stub files for the MP940D as a DeviceNet slave, with 8 bytes in/8 bytes out and 16 bytes in/16 bytes out, respectively. Again, the MP940D can be configured for any number of bytes in/out from one to 256.
1) MP940DNET.eds - Original EDS file for MP940/260-IF
2) mp940d_8bytes.eds - EDS stub that was created for 8 bytes in / 8 bytes out
3) mp940d_16bytes.eds - EDS stub that was created for 16 bytes in / 16 bytes out
The MP940D supports Polled and Strobed I/O. Explicit Messaging is also available. However, some additional ladder code must be written to take advantage of this. Please refer to the MP940 Hardware manual [YEA-SIA-C887-4.1] for further configuration information.
Currently, MotionWorks supports all of the above modes of operation. MotionWorks+ [Version 2.56] supports the above with two exceptions; 1) No Strobed I/O support, 2) No Explicit Messaging Support.
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