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6
Chapter
Example of Transmitting a Message
This following example explains how to read ALM1 and ALM2 on station number 31.
• ALM1 detection data bit Relative address: 0000H Data number: 2H
• ALM2 detection data bit Relative address: 0001H
Master Slave
Command Message (bytes)
Station No. 1FH
Function Code 02H
No. to Start Reading
(Relative Address)
Upper number 00H
Lower number 00H
No. of Bits to Read Upper number 00H
Lower number 02H
CRC Data Upper number FAH
Lower number 75H
Response Message (bytes)
Station No. 1FH
Function Code 02H
No. of Bytes to Read 01H
State of first 8 bits 01H
CRC Data Upper number 66H
Lower number 60H
■
Meaning of Read Data
MSB LSB
ALM1 ON state
ALM2 OFF state
00000001
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