14.1 Precautions During Programming
14.1.1 Turning Off Power Supply Clears Contents in Shared Memory
The data in the shared memory of the positioning unit is cleared when the power supply of the PLC turns
off. So, if you want to perform the positioning control with the current settings of the shared memory the
next time the power supply turns on, the positioning data should be written in the FROM (flash memory)
within the positioning unit.
When parameters and positioning data has been set using the Configurator PM, it is selectable whether
to store them in the FROM (flash memory) or not at the time of downloading to the positioning unit.
14.1.2 An Operation Started does Not Change to Another Operation
Once any start-up contact of the automatic operation (position control), manual operations (JOG
operation, home return, pulser operation) turns on and the operation starts, it will not change to another
operation even if the contact of the other contact turns on.
However, the stop operation (deceleration stop, emergency stop, system stop) can be executed during
other operations.
14-2