Posted 29 Oct 2019 Hi dears i have one cp340 (340-1AH02) that is modbus RS232 RTU master and one RS485 RTU slave. i want to use RS232 to RS485 converter is it ok? can i do this without any problem? Share this post Link to post Share on other sites
Posted 29 Oct 2019 It should work, as long as you wire the connections correctly. Share this post Link to post Share on other sites
Posted 30 Dec 2019 On 11/26/2019 at 1:42 AM, you39 said: hello everyone Please help I have a program for the machine written on protool and Step 7, I wanted to open it to add an edit to it. Unfortunately, I don't have information about version of Protool is my HMI panel developped in. Can I know it through the control panel? I instal protool v6 SP3 and Step 7 v5.3 on Windows XP Prof SP2, when open backup from PLC I have two panels Show them a sign protool, but when I try to open an application created on this version appears indicating a mistake "Error on converting OID 5 == OID_POB_CTDRIVER_MANAGER. Please contact the manufacturer." "Unexpected file format" Atached images. I tried to convert the backup from Protool to winCC flexible, but I have not yet found the appropriate version winCC flexible, Share this post Link to post Share on other sites
