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1、??MODBUS??01~31?RS-485?01?BaudRate????Overtime??BITMODBUSRTUASCIIRTU113?(8N2)?(8E1)?(8O1)?RTUmodbusRTU10ms++++CRCCHK+10ms
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19、_____________________________________________1STX10msAddress8-bitFunction8-bit
20、DATA(n-1)……8-bit16bitDATA0CRCCHKLowCRCCRCCHKHigh16-bitCRC28-bitEND10ms?Address0~31?00HBroadcast,?01H~1FH?Function4?03H?06H?10H?DATA(n-1)???03H1FH0006HF006Address1FHFunction03HStartingdataaddress00H06HSizes00H01HCRCCHKLow67HCRCCHKHighB5HAddress1FHFunction03Hdataaddres
21、s00H06HDatacontent10H88HCRCCHKLowABHCRCCHKHighD3H1FH+03H+00H+06H+00H+01H+67H+B5H?Address1FH----ID1FH?Function03H----?Startingdataaddress0006H----0x0006?Sizes0001H----1?CRCCHK1FH+03H+00H+06H+10H+88H+ABH+D3H?Address1FH----ID1FH?Function03H----?dataaddress0006H----0x000
22、6?Datacontent:1088H----?CRCCHK?06H1FH50001388H0006HAddress1FHFunction06HDataaddress00H06HDatacontent13H88HCRCCHKLow67HCRCCHKHigh23HAddress1FHFunction06HDataaddress00H06HDatacontent13H88HCRCCHKLow67HCRCCHKHigh23H1FH+06H+00H+06H+13H+88H+67H+23H?Address1FH----ID1FH?Func
23、tion06H----?Dataaddress0006H----0x0006?Datacontent1388H----0x00061388H?CRCCHK1FH+06H+00H+06H+13H+88H+67H+23H?Address1FH----ID1FH?Function06H----?dataaddress0006H----0x0006?Datacontent:1388H----?CRCCHK?10H1FH00-06=50.00(1388H),00-07=00.01(0001H)Address1FHFunction10H00
24、H06Hword00H02HByte04H13H88H00H01HCRCCHKLow56HCRCCHKHighC3HAddress1FHFunction10H00H06Hword00H02HCRCCHKLowA2HCRCCHKHigh77H1FH+10H+00H+06H+00H+02H+04H+13H+88H+00H+01H+56H+C3H?Address1FH----ID1FH?Function10H----?0006H----0x00060x00060x0007?word0002H----?Byte04------?1388
25、H?0001H?CRCCHK1FH+10H+00H+06H+00H+02H+A2H+77H?Address1FH----ID1FH?Function10H----?0006H----0x00060x00060x0007?word0002H----?CRCCHKCRCCHKCRCCHK?Address1FHFunction10H20H00Hword00H02HByte04H00H1EH10H88HCRCCHKLow67HCRCCHKHighE6HAddress1FHFunction10H20H00Hword00H02HCRCCHK
26、Low49HCRCCHKHighB6HAddress1FHFunction10H20H00Hword00H02HByte04H00H12H10H88HCRCCHKLowA7HCRCCHKHighE5HAddress1FHFunction10H20H00Hword