text: <s>[INST] SMC Flex Start Stop Summary: Soft Starter wont start We have an SMC Flex Soft connected to the L23E PLC via Ethernet ( 20 Comm E card ). The sofstarter Display/Control has firmware revision 6.006. When commanded to start with LogicCommand_Start, it does start up but when commanded to stop with LogicCommand_Stop it does not stop. It only stops by making, by making high, the bit called LogicCommand_Option1Command. All controllers with Firmware revision 6.006, has this problem. The same parameter configurations work on other softstartere with firmware revision 6.003 and older. Please help [/INST] The reason you cannot stop the soft starter using the LogicCommand_Stop tag is due to the fact that the device is already preconfigured for a hard wiring control application(or it has been configured to listen to Option 1 Input tag state arriving via networked communications) ; if you wish to control the SMC strictly via EtherNet/IP communications, parameters Option 1 Input and Option 2 Input should be set at Disable . Refer to Page 3-16 of http://literature.rockwellautomation.com/idc/groups/literature/documents/um/150-um008_-en-p.pdf for the required control wiring diagram when controlling SMC Flex products over DPI communications (HIM or 20-COMM-E). \\n </s>