Rockwell Automation 1747-PT1, D1747NP002 Hand-Held Terminal - Manual (Page 447)

Appendix A
HHT Messages and Error Definitions
A–7
Message: Respond by: Appears when:
The syntax of the current rung is incorrect. Correcting the rung.
SYNTAX ERROR
The syntax of the current rung is incorrect. Correcting the rung.
TOO MANY
INSTRUCTIONS
ON RUNG
The rung contains more than 127 instructions. Changing the rung to contain fewer instructions.
TOO MANY
INSTRUCTIONS
ON RUNG
The rung contains more than 127 instructions. Changing the rung to contain fewer instructions.
UNABLE TO
BEGIN BRANCH
A branch cannot be inserted at the cursor location. Aborting the procedure or moving the cursor.
UNABLE TO
DELETE
INSTRUCTION
Removing this instruction results in an illegal rung structure. Aborting the procedure.
UNABLE TO EDIT
The file number entered does not exist in this program. Entering a valid file number.
UNABLE TO EDIT
FILE
The file number entered does not exist in this ladder program. Choosing the correct file number.
UNABLE TO
INSERT
INSTRUCTION
Inserting this instruction results in an illegal rung structure. Aborting the procedure.
UNABLE TO
MONITOR FILE
The file number entered either does not exist in the processor
ladder program or it is a file type not capable of being
monitored.
Choosing a different file number or downloading the program
with the program file number.
UNABLE TO
REPLACE
INSTRUCTION
Replacing this instruction results in an illegal rung structure. Aborting the procedure.
UNKNOWN FILE
The file type returned by the data base is unknown to the
compiler.
Using only S2, O0, I1, Bx, Rx, Cx, and Nx file types.
UNKNOWN FILE
TYPE
The file type returned by the data base is unknown to the
compiler.
Using only S2, O0, I1, Bx, Rx, Cx, and Nx file types.
UNKNOWN
There is an internal compiler error. Contacting your A–B service representative.
UNKNOWN
OPERATOR
There is an internal compiler error. Contacting your A–B service representative.