10
3.5 Description of codes
The codes from
①
STX,
②
address to
⑩
ERR type as indicated below are expressed in
ASCII codes.
For the ASCII codes, see "11. Table of ASCII codes."
For conversion to ASCII codes, see "4. Examples of TOHO communications."
①
STX
This code is needed for the receiver to detect the top of the message. It is affixed to the top
of a character string to be sent.
②
Address
This is the address of the party (this product) with whom a high-level computer
communicates. The address in the response message from this product indicates the sender
of the response message.
③
Contents requested
Enter a code R / W. / L / B
R: to read data from this product
W: to write or store data in this product
L: to read blind setting from this product
B: to write or store blind setting in this produc
④
Identifier
An identifier is a classification code (identifier) for data to be read or written and expressed
in a three-digit alphanumerical ASCII code. See "10. Table of identifiers (codes)."
⑤
Numerical data
In writing mode, you can write 5 or 6 digits of numerical data. In reading, you can set this
product to 5 or 6 digits of numerical data. Following are the conditions for switchover
between 5 and 6 digits.
Negative data: The "-" (minus) sign is in a single digit at the largest digit.
Position of the decimal point: 5-digit data does not include a decimal point.
Example: The table below indicates the significances of 5-digit numerical data -9999
Example
Significance of the
value
Data (PV), etc, whose
decimal point can be
shifted
decimal point setting (DP) is
0
-9999
decimal point setting (DP) is
0.0
-999.9
decimal point setting (DP) is
0.00
-99.99
decimal point setting (DP) is
0.000
-9.999
Decimal point setting (DP) is
0.0000
-0.9999
When the character data is “ INP”.
Example: The table below indicates the significances of 6-digit numerical data -10000
設定
数値の意味
Data (PV), etc, whose
decimal point can be
shifted
decimal point setting (DP) is
0
-10000
decimal point setting (DP) is
0.0
-1000.0
decimal point setting (DP) is
0.00
-100.00
decimal point setting (DP) is
0.000
-10.000
Decimal point setting (DP) is
0.0000
-1.0000
