User`s manual
CPU modules Part names and settings of universal CPU modules
4 – 36
No. Name Application
Module fixing hook Hook used to fix the module to the base unit.
MODE LED Indicates the mode of the CPU module
ON: Q mode
OFF:
– Executional conditioned device test is in process
– Forced on and off function for external I/O is in process.
– Data backup and restore to/from memory card after exchange of the CPU.
RUN LED Indicates the operating status of the CPU module.
ON: The PLC operates the program with cyclic processing (RUN status).
OFF: During stop with the RUN/STOP/RESET switch set to "STOP". When an
error that stops operation is detected.
FLICKER: When parameters or a program is written during STOP and the
RUN/STOP/RESET switch is moved from "STOP" to "RUN". The CPU is not
in "RUN" mode.
To turn on the RUN LED after writing the program, perform the following oper-
ations:
– Shift the RUN/STOP/RESET switch from "RUN" to "STOP" to "RUN".
– Perform reset with the RUN/STOP/RESET switch (refer to section 4.5.3).
– Power on the programmable controller again.
To turn on the RUN LED after writing the parameters, perform the following
operations.
– Perform reset with the RUN/STOP/RESET switch.
– Power on the programmable controller again.
(If the RUN/STOP/RESET switch is shifted from "STOP" to "RUN" to "STOP"
to "RUN" after changing the parameter values, the new values are not reflec-
ted on the parameters related to the intelligent function module, such as the
network parameters.)
ERR. LED Error indication
ON: When the self-diagnostic error that will not stop operation is detected
(continuation of operation at error detection must be set in the parameter).
OFF: Normal
FLICKER:
– When an error that stops operation is detected.
– When reset operation is performed with the RUN/STOP/RESET switch.
USER LED Display of user messages:
ON: Annunciator (F) turned on.
OFF: Normal
BAT. LED Display of user messages:
ON (yellow): Battery error due to battery voltage drop of the memory card.
FLICKER (yellow): Battery error due to voltage drop of the CPU module bat-
tery.
ON (green): Turned on for 5 seconds after restoring of data backed up to the
standard ROM by the latch data backup is completed.
FLICKER (green): Flashes when backup of data to the standard ROM by
latch data backup is completed.
OFF: Normal
USB connector Connector for connection with USB-compatible programming device.
RS232 connector Connector for connecting a programming device (peripheral device) by RS232.
RUN/STOP/RESET
switch
RUN: Executes sequence program operation.
STOP: Stops sequence program operation.
RESET: Performs hardware reset, operation error reset, operation initializa-
tion or like.
Module fixing holes Hole for the screw used to fix to the base unit. (M3x12 screw)
Module fixing hook Hook used to fix the module to the base unit.
Module mounting
lever
This spring loaded lever simplifies disassembling of the module from the base
unit.
Battery Backup battery for use of the program memory, standard RAM, clock function
and backup power time function.
Battery connector
pin
For connection of the battery lead wires. Lead wires are disconnected from the
connector when shipping to prevent the battery from consuming.
Tab. 4-19: Part names of Q00UCPU and Q01UCPU