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Hi Steve,I reviewed all posts between us, which I found your mentioned to me more than twice or to keep hammering me to make sure about USB/SERIAL rs232 port From LAPTOP to Horner HE693SNP232 device and also the matching port setting via laptop & plc after i think how to clear this dout ,i have to forget my lap top at the moment & i used hp 66 case type windows 7 that has direct com port rs 232 via Windows Me VMware Workstation which i used versa pro v.2.04 also i used with the horner converter cable male &female end sides com port rs 232 which is point to point,i connect it between my computer and plc pwr321 port,through(WMe computer) i did port setting as before after i opned vesrsapro & i select tools menu after communication setup, as before, both com1,19200,1,odd,after switch power on i got only as it was power lamp on & o.k lamp, but i got( ps port lamp flashing from cpu363 ,after I select connect mode, i got CONNECT,& i select load from plc mode which monitoring (no user program present ) by this i built simple ladder diagram and i store it to plc ,which i got feedback store to plc completed,and i got the RUN lamp on pwr321 by controlling from versapro modes as(RUN PLC/ STOP PLC (stop enable /stop disable) window but i can't get the RUN LAMP by key switch Run/stop on CPU363 after by checking of a lot of things specially verify with plc & hwc ,The key becomes Active for run / stop plc & also i pull the interface cable from pwr321 port and plug it to port 2 (rs485) on cpu 363, P2 blinking and imade RJ11 (RS232) to rs232 interface cable ,i plug it in to port1 on CPU363 port 1 blinking till to each time out which still under progress what is happen on this one ? and would you pls see this summary with correct the wrong one and we reach to win for solving this technical situation and we will back to my laptop to see how to deal with it, thanks a lot for giving hand