Dwyer UXF3 - Manual (Page 22)

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6.2 Read-out of Read-out Only Word Data [Function code:04
H
]
Function code
Max. word number read-out
in one message
Relative data address Register No.
04
H
64 words 0000
H
㧙00DF
H
30001 㧙30192
(1) Message composition
Command message composition (byte) Response message composition (byte)
Station No. Station No.
Function code Function code
Upper Read-out byte number Read-out word number×2 Read-out start No.
(relative address) Lower
Upper
Upper
Contents of the
first word data
Lower Read-out word
number
Lower ¿
¾
½
1 to 64
Upper
Lower
Contents of the
next word data
Lower
CRC data
Upper
Upper Contents of
the last word
data
Lower
Lower
CRC data
Upper
* Arrangement of read-out word data
MSB LSB
Upper byte of contents of the first word data
Lower byte of contents of the first word data
Upper byte of contents of the next word data
Lower byte of contents of the next word data
Upper byte of contents of the last word data
Lower byte of contents of the last word data
(2) Function explanations
Word data of continuous word numbers from the read-out start No. can be read. Read-out word data are
transmitted from the slave station in the order of upper and lower bytes.
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Bulletin F-107-UXF3-S