LSIS XBE-DC08A, User Manual

Page: 1061 / 1284

Chapter 2 Built-in Cnet communication
2-63
B
u
ilt
-in
C
omm
3) Continuous writing of device (W(w)SB)
This is a function that directly specifies PLC device memory and continuously writes data from specified address as
much as specified length.

Request format
Format
name
Heade
r
Station
No.
Command
Comman
d type
Device
Length
Device name
Number
of data
Data Tail
Frame
check
Frame
(Example)
ENQ H10 W(w) SB H06 %MW100 H02 H11112222 EOT BCC
ASCII
value
H05 H3130 H57(77) H5342 H3036
H254D5731303
0
H3032 H3131313132323232 H04
•
Number of data specifies the number according to the type of device. Namely, if the data type of device is WORD, and
number of data is 5, it means that 5 WORDs should be written.
•
Number of data can be used up to 120Bytes (60 Words).
Item Description
BCC
When command is lowercase(r), only one lower byte of the value resulted by adding 1 Byte
each to ASCII values from ENQ to EOT is converted into ASCII and added to BCC.
Device
Length
(Name length of
variable)
This indicates the number of name's characters that means device, which is allowable up to
16 characters. This value is one of ASCII converted from hex type, and the range is from
H01 (ASCII value: 3031) to H10 (ASCII value: 3130).
Device
Address to be actually read. This must be ASCII value within 16 characters, and in this
name, digits, upper/lower case, and '%' only are allowable to be entered.

XGB Response format (ACK response)
Format name Header Station No.
Command Command type
Tail Frame check
Frame (Example)
ACK H10 W(w) SB ETX BCC
ASCII value
H06 H3130 H57(77) H5342 H03
Item Description
BCC
When command is lowercase(r), only one lower byte of the value resulted by adding 1 Byte each
to ASCII values from ACK to ETX is converted into ASCII and added to BCC, and sent.
Note