1/10/2014 7:04 PM | |
Joined: 12/1/2009 Last visit: 9/5/2024 Posts: 672 Rating: (147) |
Dear LKMNVRS, you are welcome. If the softwaredoes thejob for you"RATE" it! I like to work with professionals Have a good time. Best Regards. |
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6/17/2014 8:21 AM | |
Joined: 12/1/2009 Last visit: 9/5/2024 Posts: 672 Rating: (147) |
Hello LKMNVRSand welcome back! Regarding FB-Numbers I will make an exception for you and send you the program with other function block numbers. I kindly request you to send me a private message withan emailto which I can send the software. Regarding Modbus Function codes I believe that it it easier for a user just to handle with modbus addresses rather than function codes, especially for beginners.The MBMAREQ (FB10) will generate the corresponding modbus function code internally, sothe user does not needto keep themin mind. Number of Registers The number of registers is getting automatically calculated by the MBMAREQ function block as well. (END address register) minus (START address register) + 1 What now? I would request your slave supplier to provide you with a modbus address list. Then you just simply enter these addresses atthe MBMAREQ block which willdo the rest for you (generating the respective modbus function code and number of registers). Modbus cannot be easier. Maybe you can send me the address list and I will have a look at it. Best Regards. Conversion of the first two Modbus requests as per Data MAP (DB201) DB201 Slave Address: 3 Function Code: 2 Start Register: 0 No. of Registers: 200 = MBMAREQ (FB10) RW:=FALSE // I-FUNCTION = READ SLAVE :=3 // I-SLAVE NUMBER
START:=L#10001// I-START ADDRESS (10001) END :=L#10200// I-END ADDRESS (10200) DB201 Slave Address: 3 Function Code: 4 Start Register: 0 No. of Registers: 87 = MBMAREQ (FB10) RW:=FALSE // I-FUNCTION = READ SLAVE :=3 // I-SLAVE NUMBER START:=L#30001// I-START ADDRESS (30001) END :=L#30087// I-END ADDRESS (30087) Best Regards. |
Last edited by: TIBI68 at: 6/17/2014 11:39 AMLast edited by: TIBI68 at: 6/17/2014 11:38 AMData MAP conversion added Give us your feedback and show us your respect! |
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