Introduction; Programming Console Operation Errors - Omron CQM1H - PROGRAM Programming Manual

Introduction

8-1 Introduction
1,2,3...
8-2

Programming Console Operation Errors

498
PC errors can be divided broadly into the following four categories:
1. Program Input Errors
These errors occur when inputting a program or attempting an operation
used to prepare the PC for operation.
2. Programming Errors
These errors will occur when the program is checked using the Program
Check operation.
3. User-defined Errors
There are instructions that the user can use to define errors or messages.
The instructions will be executed when a particular condition (defined by
the user) has occurred during operation.
4. Operating Errors
These errors occur after program execution has been started.
a) Non-fatal Operating Errors
PC operation and program execution will continue after one or more of
these errors have occurred.
b) Fatal Operating Errors
PC operation and program execution will stop and all outputs from the
PC will be turned OFF when any of these errors have occurred.
The PC's indicators will indicate when a PC error has occurred and an error
message or code will be displayed on the Programming Console or host com-
puter if one is connected. The error code is also contained in SR 25300 to
SR 25307.
For the most recent errors, both the type of error and time of occurrence will
be recorded in the PC's error log area. Details are provided starting on
page 504.
There are flags and other information provided in the SR and AR areas that
can be used in troubleshooting. Refer to SECTION 3 Memory Areas for lists of
these.
Note In addition to the errors described above, communications errors can occur
when the PC is part of a Host Link System. Refer to SECTION 6 Host Link
Commands for details.
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 Ladder Support Software Operation Manual, SYSMAC
Support Software Operation Manual: C-series PCs, or Data Access Console
Operation Manual for errors that may appear when operating the SSS or a
Data Access Console.
Message
REPL ROM An attempt was made to write to write-protected memory.
Set the write-protect switch (pin 1 of the CPU Unit's DIP switch) to
OFF.
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.
Meaning and appropriate response
Section 8-1