App-8
IM 2553A-01EN
Item
Specifications
<line feed>
CR, LF, and CR+LF can be used.
• Even if a temperature range is lower than that of the previous line, the ranges are sorted
before they are written in the 2553A.
• A line whose first character is a sharp (
#
) is handled as an empty line.
• Lines that only contain a line feed are ignored.
• Spaces after a comma or value are ignored.
• Do not insert a space immediately after a polarity sign (– or +).
Definition file
User-defined data that you create according to the syntax are saved in a text file with the
following name. The user-defined data file name is fixed. The name is not case sensitive.
TC USER definition file name: TCUSER.TXT
RTD USER definition file name: RTDUSER.TXT
Error file
If there is an error in the user definition, an error will occur. Errors are saved to the following
files in the 2553A OUT folder. The error file name is fixed.
TC USER error file name: ERRORTCUSER.TXT
RTD USER error file name: ERRORRTDUSER.TXT
Error file syntax LINE x, CHAR y : error message
• LINE x:
Indicates the error line number in the definition text data.
• CHAR y:
Indicates the error character number in the error line.
• Error message:
See “User-Definition Error Messages” below.
Setting user
definitions using
communication
commands
You can use communication commands to set TC USER and RTD USER user definitions.
For details on user-definition commands, see “SOURce Group” in chapter 11.
• TC USER and RTD USER user definitions are set using separate commands.
• A character string is set for each temperature range. You must send a character string
enclosed in single quotation marks (') or double quotation marks (").
• You can assign a character to identify among different types of user definitions.
• You can delete the user-defined data written in the 2553A’s internal memory.
User-Definition Error Messages
Error Message
There is no TYPE description.
The number of characters for TYPE is not correct.
The character type used in TYPE is not correct.
The output is outside the possible range.
The number of characters in a line exceeds 512.
The upper limit of the temperature range is omitted.
The upper or lower limit of the temperature range is outside the allowed range.
The upper limit of the temperature range is less than the lower limit.
A polynomial coefficient is not specified.
The format of the upper limit, lower limit, or polynomial coefficient is not correct.
The number of polynomial coefficients exceeds 21.
Appendix 4 User Definitions of Thermocouples and RTDs
