Chapter 4 CPU Module
4-
4
No.
Names
Description
①
-c ERR
LED
y
ON (Red): indicates that the error not possible to operate occurred.
y
OFF: indicates ‘no error’
①
-d
PS LED
(Programmable
Status)
y
ON (Red):
▶
In case that ‘user assigned flag’ is
‘
On’
▶
‘In case of operating in the error state by ‘operation proceeding in the
error’ setting
▶
‘In case that the module is detached or other module is installed in the
state that ‘M.XCHG‘ switch is
‘
On’
y
OFF:
▶
Indicates ‘no error’
①
-e
BAT LED
y
ON (Red): in case that battery voltage is lowered
y
OFF: no battery error
①
-f CHK
LED
y
ON (Red): indicates the setting is different from standard setting
(Available to add/delete[clear] by parameter)
▶
In case that ‘Module change’ switch is set as ‘Module change’
▶
‘In case of operating in ‘DEBUG mode’
▶
‘Forced ON’ setting state
▶
In case that ‘fault mask’, ‘SKIP’ flag is set
▶
In case that Warning occurs during operation
▶
Extended base power error
y
Blink: indicates in case arithmetic error occurs during Program Proceeding is set.
y
OFF: indicates during operation by standard setting
②
-a
Boot/Nor
switch
Used when downloading the O/S before releasing.
y
On (right): executes control action in normal operation mode.
y
Off (left): used for manufacturing, user’s operation prohibited.
(Download mode of O/S)
y
Note: Boot/Nor switches should be both set in On (right) side.
If set in Off (left) side, it may cause abnormal operation.
②
-b
REMOTE enabled
switch
Limits the operation of PLC by remote connection.
y
On (right): all function enabled (REMOTE mode)
y
Off (left): remote function limited
▶
D/L of program, Operation mode limited
▶
Monitor, data change enabled
②
-c
M.XCHG
(Module change
switch)
Used in case of performing the module change during operation.
y
On (right): performs the module change
▶
Available to change the module only by key switch operation
y
Off (left): completes the module change
③
RUN/STOP mode
switch
Sets the operation mode of CPU module.
y
STOP
→
RUN : executes the operation of program
y
RUN
→
STOP : stops the operation of program
Operates prior to REMOTE switch.
