For technical support issues with the 475 handheld, please contact Emerson Automation Solutions customer service.
The following is not a complete list of errors, these are examples of the errors we have encountered and share them to prevent others from implementing erroneous DDL code.
|Error||Possible Causes||HART Tokenizer Issue||Possible Corrective Actions|
|Tlink: fatal error: invalid enumeration string reference xxxx
||The reference (xxxx) exists in the standard symbol table and must not be duplicated or overwritten||Tokenizer does not flag an error if STANDARD_TABLES import does not include EVERYTHING||IMPORT STANDARD _TABLES, DEVICE_REVISION 20, DD_REVISION 4
EVERYTHING; // include this line...
|Tlink: fatal error: invalid type of expression 13||A default value was declared that does not meet HART Protocol specifications.
(FCG TS20500) SPEC-500 for DEFAULT_VALUE for each data type. The Protocol Specifications rely on the proper implementation of variables.
|DEFAULT_VALUE type needs to be checked.
||Correct the declared value of DEFAULT_VALUE.
TYPE ENUMERATED has DEFAULT_VALUE 20
do not use "string"
TYPE FLOAT has DEFAULT_VALUE "20.0"
do not use "20.0f"
|475 Crash within a menu:
|Tokenizer does not flag as an error.||Use this reference in the menu instead: