Omron SYSMAC CS1W-LCB01 Operation Manual page 174

Exchanging Data with the CPU Unit
Word Bit Name
A358 01 PV Error Input
Flag
02 MV Error Input
Flag
03 Execution Error
Flag
04 Function Block
Database
(RAM) Error
Flag
07 Automatic Cold
Start Execution
Flag
11 Run Status Flag This flag notifies the CPU Unit that the Loop Controller is
13 Backup during
Operation Flag
15 Function Block
Changed Flag
140
Explanation
This flag notifies the CPU Unit whether ITEM018 (PV error
input) of the Basic PID block (block model 011) or
Advanced PID block (block model 012) is ON or OFF.
Note: Normally specify the Analog Input Block's "output
from disconnected line detection contact ITEM" as the
source of ITEM018 (PV error contact source designation.)
This flag notifies the CPU Unit whether ITEM090 (MV error
input) of the Basic PID block (block model 011) or
Advanced PID block (block model 012) is ON or OFF.
Note: Normally specify the Analog Output Unit's "output
from disconnected line detection contact ITEM" as the
source of ITEM090 (MV error contact source designation.)
This flag notifies the CPU Unit that a function block execu-
tion error has occurred when ITEM003 (the execution error
code) of one or more blocks is non-zero.
Note: When an execution error has occurred (there is an
error code other than 0), refer to 7-1 Errors and Alarm Trou-
bleshooting for details on troubleshooting the error.
This flag notifies the CPU Unit that the function block data
in the Loop Controller's RAM has been corrupted.
If the function block data in RAM is invalid, a cold start will
be performed even if a hot start is specified.
Note: When an error has occurred, use the CX-Process
Tool to execute the Clear All, Download, or Recovery
operation or transfer the affected function block's settings
again.
This flag notifies the CPU Unit that a cold start was exe-
cuted automatically because the RAM data was invalid due
to a discharged backup capacitor or other cause while
power was not being supplied (i.e., that the Board is run-
ning with the data that was last backed up to flash mem-
ory). This flag will be 0 (OFF) when the Board is not
running.
When necessary, check whether this flag is 1 (ON) and
download the most up-to-date function block data.
running.
The flag is 1 (ON) when the Board is running.
Notifies the CPU Unit whether or not the Loop Controller is
backing up data during operation.
This flag notifies the CPU Unit that the function block data
download (change) operation was executed from the CX-
Process Tool while the Loop Controller was running.
Monitor the status of this flag in the CPU Unit's ladder pro-
gram and perform any required processes, such as a notifi-
cation of function block data change, if the function block
data has been changed during operation (i.e., if online edit-
ing of the Loop Controller has been executed).
Note: When the function block data has been downloaded
(changed) by an operation from the CX-Process Tool, the
function block data is not stored in flash memory. Always
execute the Backup operation from the CX-Process Tool to
backup data to flash memory after downloading function
block data.
Section 3-3
Settings
1: PV error input is ON.
0: PV error input is OFF.
1: MV error input is ON.
0: MV error input is OFF.
1: Execution error(s)
occurred
0: No execution errors
1: Function block database
error occurred
0: No function block data-
base error
1: A cold start was exe-
cuted automatically after
writing backup data from
the flash memory to RAM.
0: Automatic cold start not
executed.
1: Loop Controller running
0: Stopped
1: Backup during operation
0: No backup during oper-
ation.
1: Function block data (file)
was downloaded.
0: Function block data (file)
was not downloaded, a hot
start was performed, or a
cold start was performed.