Reading data from the COM port using WIN 32 APIs with Extend 10.4

Richard Vogt 10 months ago

My customer has a device that only communicates via COM ports...how does Acu-COBOL Extend handle this? And it doesn't have to be with the API if a better way is available.

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Peter Clayton 10 months ago +1 verified

You did not indicate if communication is only to the device or if it is bi-directional. (I also assume you are using Windows) For the former you can simply set use MODE to set the communication parameters…
Richard Vogt 10 months ago in reply to Peter Clayton +1

Yes, Peter, that worked...thanks!

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+1 Peter Clayton 10 months ago

You did not indicate if communication is only to the device or if it is bi-directional. (I also assume you are using Windows)

For the former you can simply set use MODE to set the communication parameters (eg MODE COM1:96,N,8,1) and write to the porrt (as if it were a file); You will also need a "null modem" cable; ie flow-control bridged out.

The later will require the API (ACURS32.DLL) with or without flow control.

I have used both successfully in many applications over the past 20 years.
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0 Richard Vogt 10 months ago in reply to Peter Clayton

Yes, Peter, that worked...thanks!
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Reading data from the COM port using WIN 32 APIs with Extend 10.4

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