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ADS-14221, PPT2 User Manual
COMMAND CODE
C=
Action
Sequential
Directing
Response
with (90-99)
address
No (1)
After (4)
DETAILS:
The C= data string command can be used to store and retrieve up to eight characters in the EEPROM. This
command must have 1 to 8 characters immediately following the '=' character. The message is terminated with
the <cr> (ENTER key) character. If this string is stored in EEPROM using the SP=ALL command, it will remain in
the PPT2 even after the power is turned off. Example uses include dates for maintenance checks, over/under
range pressure or temperature values, or key pressure readings specific to application. (Default: C=<empty>)
NOTE:
When MO=M2 or M3, the contents of the C= data string are used as the first 8 characters of the user startup
message.
EXAMPLES:
Inquiry: *ddC=
Action:
*ddWE
*ddC=Your_msg
Your_msg
DIFFERENCES FROM LEGACY PPT:
The C= command will work with a *ddWE=RAM continuous write enable is active. The SP=ALL command is now
required before the value is written to EEPROM.
The PPT also implemented parity with the C= contents. This will not be required for the PPT2.
The PPT response is always 8 characters with trailing spaces if required. The PPT2 responds only with the
characters stored.
Data String C
Input or
Requires
Output Type
Write Enable
Both
Yes
must have 1 to 8 characters immediately following the '=' character. The message is
terminated with the <cr> character. The legal characters for Your_msg include all
characters between the 'space' (SP) and lower case 'z' inclusive, except the '*', in
standard ASCII. Other characters outside this range are replaced with the "space"
character. (see Appendix B for the ASCII table)
COMMAND DESCRIPTION
Terminates
Can Write to
Continuous
EEPROM
Commands
No
Yes (9)
EEPROM Store: *ddWE
October, 2016
Can Write to DAC
No
*ddSP=ALL
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