Test 9
9-1
9. Test
Caution on operation
Thoroughly read the manual and sufficiently assure safety before executing the operation to
forcibly set devices to ON/OFF or the operation to change present values and set values of
word devices in the test mode.
Otherwise, the machine may be damaged and accidents may occur by erroneous operations.
9.1 Outline of test function
In the test mode, devices in the PLC can be forcibly set to ON/OFF, present values of word
devices (T, C, D, Z and V) in the PLC can be changed, and set values of timers (T) and
counters (C) in the PLC can be changed from the HPP.
Perform the device monitor operation to display devices in the PLC to be changed.
Test operation condition
• While the EPROM is attached to the PLC, set values of timers and counters cannot be
changed.
While the EEPROM is attached to the PLC and the PLC is in the RUN status, set values of
timers and counters cannot be changed.
PLC
status
RUN:
✓
STOP:
✓
Valid memory Inbuilt memory:
✓
RAM cassette:
✓
EEPROM
cassette:
U
EPROM
cassette:
U
FX-20P-E Handy programming panel
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