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Description of Operation Section 3-2
• The function block data file will be written using the FINS command, and
then Loop Controller operation will stop. Use the following procedure to
start operation after downloading.
â– LCB Restart
The LCB will restart and then operation will start when A60800 (Inner Board
Restart Bit) is turned ON in the Auxiliary Area in the CPU Unit.
â– Cycling the PLC Power Supply
A hot start or cold start can be specified using ITEM 018 (START mode at
power ON) of the System Common Block.
3-2-8 Indicating Loop Controller Run/Stop (All Function Blocks)
Running of the Loop Controller is started according to the START mode at
power ON by turning ON the power to the PLC or by restarting the Loop Con-
troller.
There are three ways of indicating run/stop of the Loop Controller (common to
all function blocks) when the PLC power is turned ON.
1,2,3... 1. By operating CX-Process Tool (Both run start and stop can be specified.)
2. By issuing the FINS WRITE ITEM commands (command codes 0241 and
0243 Hex) to change ITEM014 (run/stop command) of the System Com-
mon block (Block Model 000)(Both run start and stop can be specified.)
3. By changing ITEM014 (run/stop command) of the System Common block
(Block Model 000) by the ITEM Setting blocks (Block Models 171 and 172).
(Only run stop can be specified.)
Note 1. ITEM014 of the System Common block cannot be set to 1 (hot start) or 2
(cold start) by ITEM Setting blocks. Only 0 can be set.
2. Setting to a hot start or cold start is not accepted if these modes are in-
structed while the Loop Controller is already running.
BACKUP
E1.PRM
BACKUP
E1.PRM
Other
backup
files
Loop Controller
Host compute
CPU Unit
Memory Card
A backup file is
output to the
Memory Card by
the simple
backup function.
Function
block data in
flash memory
The file is written directly
to the Loop Controller by
using a FINS 2203
command.
The BACKUPE1.PRM
file is read to the host
computer.
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