Are you aware of the passthru opt and the fd30 program which allows you to look at the actual com messages? Try looking in /usr/fd30 for dscope and showfd. I use NT and the format is: dscope70.exe lbug port function ie.. dscope70.exe MYGW30 1 raw_in_out this turns on the message data scope to read the meassages to the showfd program. Usage for this program is as follows. Showfd70.exe lbug [filename] Ie.. showfd70.exe MYGW30 message.exe This troubleshooting program was essential to getting my communications program up and running. I'm not sure if I received it from TAC or if it was initially installed by default, but it helps. Let me know if you need it. Ronald G. Schafer 10026 Old Ridge Rd. Ashland Va. 23009 804-227-4034 _______________________________________________________________________ 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