Programming ErrorsSection 5-5

SEVERE FAILURE ALARM – FALS(07) is an instruction that causes a fatal error. The following will occur when

FALS(07)

an FALS(07) instruction is executed:

1, 2, 3...

1.

Program execution will be stopped and outputs will be turned OFF.

 

2.

The ERR/ALM indicator on the CPU Unit will be lit.

 

3.

The instruction’s 2-digit BCD FALS number (01 to 99) will be written to

 

 

SR 25300 to SR 25307.

 

4.

The FALS number and time of occurrence will be recorded in the PC’s error

 

 

log area if a Memory Cassette with a clock (RTC) is used.

 

The FALS numbers can be set arbitrarily to indicate particular conditions. The

 

same number cannot be used as both an FAL number and an FALS number.

 

To clear an FALS error, switch the PC to PROGRAM Mode, correct the cause of

 

the error, and then clear the error using the Programming Console.

MESSAGE – MSG(46)

MSG(46) is used to display a message on the Programming Console. The mes-

 

sage, which can be up to 16 characters long, is displayed when the instruction’s

 

execution condition is ON.

5-4 Programming Console Operation Errors

The following error messages may appear when performing operations on the Programming Console. Correct the error as indicated and continue with the operation. Refer to the SYSMAC Support Software Operation Manuals: Basics and C-series PCs for errors that may appear when operating the SSS.

Message

Meaning and appropriate response

 

 

REPL ROM

An attempt was made to write to write-protected memory. Set bits

 

00 to 03 of DM 6602 to “0.”

 

 

PROG OVER

The instruction at the last address in memory is not NOP(00). Erase

 

all unnecessary instructions at the end of the program.

 

 

ADDR OVER

An address was set that is larger than the highest memory address

 

in Program Memory. Input a smaller address.

 

 

SETDATA

FALS 00 has been input, and “00” cannot be input. Reinput the

ERR

data.

 

 

I/O NO. ERR

A data area address has been designated that exceeds the limit of

 

the data area, e.g., an address is too large. Confirm the

 

requirements for the instruction and re-enter the address.

5-5 Programming Errors

These errors in program syntax will be detected when the program is checked using the Program Check operation.

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Omron CPM1A operation manual Programming Console Operation Errors, Programming Errors, FALS07, Message MSG46