UniStream: Hardware
This is the place for all things Hardware: UniStream HMI panels, CPUs, I/O and COM modules
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By Joe Tauser · Posted
I'm assuming you're working with a UniStream. This PLC does not have a native RTC to ASCII function. Read up on UDFBs (User Defined Function Blocks) in the Help - these are loadable functions written in ladder code. Flex has posted a UDFB file above that you can load into your PLC to get the functionality you're looking for. Joe T. -
where do I find the rtc to ascii code? I'm a new unitronics user and have no idea where to find it -
I am also interested in this subject as well. We use Ewon in applications. -
Hi Jalal, Thanks for getting in touch. I now understand what you are trying to do. The above comment from @kratmel is the essence of the issue. It sounds like you are using the programming cable that has the MJ10-22-CS25 adaptor on it. The alternative adaptor MJ10-22-CS76 achieves the RX to TX wire swap and also has the opposite DB9 connector. I can organise a MJ10-22-CS76 for you to try. Kind Regards, -
Hi Jalal, Jus to back things up a little, the second port is not fitted by default to the PLC. From the photo you sent I can see that the port 2 slot is empty: The expansion port is completely separate to the add-on COM port. When you are trying to run serial comms and also debug the program using Visilogic, a second port is almost essential. Part number is V100-17-RS4 or V100-17-RS4X. I'll take a guess at who you are working for, but please direct message me to confirm and we will try to help you out. You won't get anywhere trying to connect a USB to serial adaptor into the USB programming port of the PLC. I hope this helps, Kind Regards, Simon
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