User`s manual

6-16
6.6 Command and Transmission Frame Details
INP-TN5A0202-E
Message composition
Master Slave
Command composition (Byte) Response message composition (Byte)
Station No. Station No.
Function code Function code
Number to start reading
out (Relative address)
Upper
Number of bytes to read out
(Number of words to read out ×2)
Lower
Number of words to
read out (1 to 32 words)
Upper
First word data
contents
Upper
Lower Lower
CRC data
Lower
Next word data
contents
Upper
Upper Lower
Last word data
contents
Upper
Lower
CRC data
Lower
Upper
The meaning of read out word
MSB LSB
First word data contents upper byte
First word data contents lower byte
Next word data contents upper byte
Next word data contents lower byte
Last word data contents upper byte
Last word data contents lower byte