The simplest way to find Sequence code that references a specific B is to use the find command with grep. In the following example I am trying to determine if X1 is being referenced by any .s files. replace X1 with the block that you are looking for, beware of searching for C:B since ::B has an implied Compound. Run this on all AP/AWs that host CPs. here's the command find /opt/fox/ciocfg -name "*.s" -exec grep :X1 {} \; -print here is what it looks like in real life bash# find /opt/fox/ciocfg -name "*.s" -exec grep :X1 {} \; -print ::X1.OUT := LOOP; /opt/fox/ciocfg/TEST/SBX_TEST.s bash# So you see X1.OUT is being set in TEST:SBX_TEST. Hope this helps. Regards, David Johnson in 2008 He's constitutionally qualified! _______________________________________________________________________ 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