By chun@icpdas.com on May.09,2007 ISaGRAF-32 : without printed manual ISaGRAF-32-E : with a printed English manual ISaGRAF-32-C : with a printed Chinese manual The above three ISaGRAF Ver.3 workbench are only for ICP DAS ISaGRAF Version 3 controllers. These three workbench limited the I/O tags number to max. 32. If you are using I/O tags connected in I/O slot 0 through 7 in controllers of Wincon-8xx7 and i-8xx7 , recommend to purchase ISaGRAF-256. ISaGRAF-256 can use max. 256 I/O tags. For controllers of i-7188EG/XG , i-7186EG and iView-ISaGRAF , the ISaGRAF-32 or ISaGRAF-256 are suitable to program them. Only Input and Output attributed ISaGRAF variables are counted into I/O tags. That is the I/O channels in the slot 0 through 7 in Wincon-8xx7 and i-8xx7. For remote I/O like RS-485 I-7000 series I/O, I-87K series I/O, i-8KE4-MTCP , i-8KE8-MTCP, FRNET I/O, M-7000 series I/O and other Modbus RTU devices are not counted into the ISaGRAF I/O tags. (Because they are using ISaGRAF internal attributed variable not Input / output attributed). Please visit www.icpdas.com - FAQ - Software - ISaGRAF - 005 and 018 for more description. There is an un-professional solution - "Directly Represented Variables" for using ISaGRAF-32 to program more than 32 I/O tags in the controllers of i-8xx7 and W-8xx7. Please refer to below file in this CD-ROM \English_Manual\User_Manual_i_8xx7.pdf\ Chapter 3.4 or \Chinese_Manual\Chinese_User_Manual_i_8xx7.pdf\ Chapter 3.4. The electronic manual is provided in this CD-ROM at below path. \English_Manual\ and \Chinese_Manual\ ISaGRAF-32 supports below controllers. i-7188EG , i-7188XG , i-7186EG , i-8437-80 , i-8837-80 , i-8437 , i-8837 , i-8417, i-8817 , Wincon-8047 / 8347 / 8747 , Wincon-8037 / 8337 / 8737 iView-ISaGRAF controllers and other compatible ICP DAS ISaGRAF Ver.3 controllers.