Is that the IEEE single-precision floating-point representation? I don't have Micro-I/A (fortunately :), but I've done this using FBM224s and RIN (real input) blocks. Though the Modbus spec doesn't officially define a floating-point representation, most Modbus slaves "overload" the protocol by using 2 consecutive 16-bit registers to represent a float in the IEEE format. The trick is getting the register order/swapping right, as it is seemingly different for every slave device, but the FBM224 provides a lot of flexibility in doing this. Hopefully you can do the same using the Micro-I/A and FRIN (?) blocks. Corey Clingo BASF Corporation elicib@xxxxxxxxxxxxxxxx Sent by: foxboro-bounce@xxxxxxxxxxxxx 08/09/2006 10:02 AM Please respond to foxboro@xxxxxxxxxxxxx To foxboro@xxxxxxxxxxxxx cc Subject [foxboro] IEEE 754 conversion Hello List?. I?m trying to make a logic for converting iee-754 numbers from slave Modbus device to micro I/A, using FMCIN + IND blocks, but it?s not working. Have you ever tried this situation? If yes, could you send me some hints? Thanks in advance?. Regards, Elidio Diniz _______________________________________________________________________ This mailing list is neither sponsored nor endorsed by Invensys Process Systems (formerly The Foxboro Company). Use the info you obtain here at your own risks. Read http://www.thecassandraproject.org/disclaimer.html foxboro mailing list: //www.freelists.org/list/foxboro to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave