3-3SectionCommand Format
32
• One character of data occupies exclusively one byte of DC memory (one
address) in either ASCII code.
ASCII Code Specification Example
WTA10010OMRON
∗
Header
For 1 to 1 procedure
Command
ASCII
code specification
R/W Head no.
Start address
W
rite data
0011
0012
0013
0010
0014
4 F ”O”
4 D ”M”
5 2 ”R”
4 F ”O”
4 E ”N”
Data Carrier Memory Address
@ Unit No. W T A 1 0 0 1 0 O M R O N
∗
FCS
For 1 to N Procedure
Write
data
Start address
Command
Header
ASCII code specification
R/W Head no.
00 to 15
Note Refer to
Appendix B
for the ASCII code.
Hexadecimal Code Specification
• Character
1 is handled as hexadecimal numerical data. Thus, only characters
0 to F can be accepted.
• Data
character 2 occupies exclusively one byte (one address) of DC memory
as
is, and consequently it
is extremely important to ensure that all write com
-
mands
are specified in two-character units (even number). If an odd number of
data characters are specified by mistake, this causes an error.
To Next Page
Loading...
