Can anyone suggest a free program, something like MODBUS POLL (www.modbustools.com) that will let me send/receive MODBUS messages via TCP/IP? I need to check about 2 systems a year, and can't justify the $130 for MODBUS POLL. Thanks! Bill --=20 Psst...=A0 Hey, you... Buddy...=A0 Want a kitten?=A0 straycatblues.petfinde= r.org --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .