Doc. No.EX##-TDU0002 April 04, 2016 Product Development Div.5, SMC Corporation Dear users of the serial transmission unit, EX250-SEN1, Please be informed of the updating of the setup file, EDS. (No change to the product.) # Usage of the new EDS file (ex250_sen1_v12.eds) This EDS file is compatible to the EDS file reading specification of Rockwell Automation PLC. Hardware configuration using the EDS file becomes possible by Rockwell Automation PLC. (It is also possible to perform hardware configuration without using EDS file as before.) Other than the Rockwell Automation PLC, this update does not have any influence. * Please refer to the operation manual for hardware configuration. Regards,