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using bitRead/bitWrite for commands and status

TOPIC: using bitRead/bitWrite for commands and status

using bitRead/bitWrite for commands and status 6 years 4 weeks ago #419

vissing	Hi. Im used to work with a command word and status word when working with buttons, for then only to have one Server tag for commands and one for status tag. This Seems not possible here? (missing AND WORD) Is the only way to use single server tags for each boolean command / status? /Kasper.
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using bitRead/bitWrite for commands and status 6 years 3 weeks ago #420

fatkhrus Offline Administrator Posts: 826 Thank you received: 123 Karma: -107	Hello, You can use scripts object from "Bitmap operations" library. To read bit you can use "Read bit" object, for set bit you can use "Set bit" object. What protocol do you use? For most protocols you can read and write bit separately. Best regards, Ruslan
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using bitRead/bitWrite for commands and status 6 years 3 weeks ago #421

vissing	I’m using modbus. I’ve tryid the setbit and reset bit with bitread, but didn’t find it usefully. I cannot get a local tag to set bit when true and reset bit when false. I used the BNOT to invert the local tag for bit reset? It could be very nice if an option to use an int bit in graphic object. E.g switch control: “command”.bit0
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using bitRead/bitWrite for commands and status 6 years 3 weeks ago #422

fatkhrus Offline Administrator Posts: 826 Thank you received: 123 Karma: -107	For Modbus you can do it easily by binding Boolean tag to Holding Register and choosing Binary Data type. See attached file. Best regards, Ruslan
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using bitRead/bitWrite for commands and status 6 years 3 weeks ago #423

vissing	Ahh. Thanks! I’ll try that!
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using bitRead/bitWrite for commands and status