Omron SYSMAC CS Series User Manual

223
Errors and Alarm Troubleshooting Section 7-1
(2) If an error occurs in a Loop Controller, details on the cause of the error
will be stored in A424 (Inner Board Error Information).
Word Bit Name Explanation Settings
A424 00 to
12
Inner Board
Error Informa-
tion
The following flags provide details on Inner Board errors
(errors common to all Inner Boards as well as errors spe-
cific to Loop Controllers.)
---
00 Inner Board
WDT Error Flag
(fatal error)
This flag is set to 1 (ON) if the Loop Controller is faulty. 1: Inner Board WDT Error
0: Normal
01 Inner Board Bus
Error Flag
(fatal error)
This flag is set to 1 (ON) if an Inner Board Bus Error has
occurred.
1: Inner Board Bus Error
0: Normal
02 Cyclic Monitor
Error Flag
(fatal error)
A cyclic monitor error was detected in the Loop Controller
of the Process CPU Unit (CS1D-CPU@@P).
This flag is set to 1 (ON) when a Cyclic Monitor Error is
detected, i.e., the cyclic area's access right token was not
returned to the Loop Controller within the cyclic monitor
time.
1: Cyclic Monitor Error
0: Normal
03 Flash Memory
Data Error or All
Function Block
Database
(RAM) Error
during Duplex
Operation Flag
(fatal error)
This flag is set to 1 (ON) in the situations outlined below.
Use the CX-Process Tool software to download all function
blocks (LCB/LCU unit). Alternatively, backup to flash mem-
ory.
When there is a flash memory data error during the data
check at a cold start.
A database (RAM) error occurred for all function blocks
during operation in duplex mode when mounted to a CS1D
CPU Unit.
1: Flash Memory Data
Error or All Function Block
Database (RAM) Error
0: Flash memory normal
and all function block data-
base (RAM) normal during
duplex operation
04 Incompatible
CPU Unit Error
Flag
(non-fatal error)
This flag is set to 1 (ON) when the Loop Control Board is
mounted in a CPU Unit other than a CS1-H CPU Unit.
Note: The CS1 CPU Units without the “-H” suffix do not
support the Loop Control Board.
1: The Loop Control Board
is mounted in a CPU Unit
that does not support the
Board.
The EM file memory is
being created or the EM
does not exist.
0: Normal
05 Cyclic Monitor
Error Flag
(fatal error)
A cyclic monitor error is detected in the CS-series Loop
Control Board (CS1W-LCB01/LCB 05) or Loop-control
CPU Unit (CJ1G-CPU@@P).
This flag is set to 1 (ON) when a Cyclic Monitor Error is
detected, i.e., the cyclic area's access right token was not
returned to the Loop Controller within the cyclic monitor
time.
1: Cyclic Monitor Error
0: Normal
06 CPU Bus Unit
Settings Area
Error Flag
(Loop Control Units only.) ---
07 Routing Table
Error Flag
(Loop Control Units only.) ---
08 Loop Controller
High Load Flag
(non-fatal error)
This flag is set to 1 (ON) when the LCB load rate exceeds
80% for three consecutive cycles. If this error occurs,
extend the operation cycles of function blocks that can be
extended. If the error recurs after extending the operation
cycles, add a Loop Control Unit and divert some of the load
to that Unit.
1: Loop Controller running
at a high load rate
0: Normal
09 Operation Cycle
Error Flag (non-
fatal error) (for
Process-control
CPU Unit
(CS1D-
CPU@@P) only)
This flag is set to 1 (ON) when the Loop Controller's opera-
tion cycle is inaccurate because the cycle time is too long
(when the CPU Unit's cycle time is more than 20% of the
minimum operation cycle) during duplex mode operation
when mounted in a CS1D CPU Unit.
1: Operation cycle error
0: Normal

Omron SYSMAC CS Series Specifications

General

Brand	Omron
Model	SYSMAC CS Series
Category	Controller
Language	English