4: OPERATION BASICS
« FC4A MICROSMART USER’S MANUAL » 4-3
Start/Stop Operation
This section describes operations to start and stop the MicroSmart and to use the stop and reset inputs.
Start/Stop Schematic
The start/stop circuit of the MicroSmart consists of
three blocks; power supply, M8000 (start control spe-
cial internal relay), and stop/reset inputs. Each block
can be used to start and stop the MicroSmart while
the other two blocks are set to run the MicroSmart.
Start/Stop Operation Using WindLDR
The MicroSmart can be started and stopped using WindLDR run on a Windows PC connected to the MicroSmart CPU
module. When the PLC Start button is pressed in the dialog box shown below, start control special internal relay M8000
is turned on to start the MicroSmart. When the PLC Stop button is pressed, M8000 is turned off to stop the MicroSmart.
1. Connect the PC to the MicroSmart, start WindLDR, and power up the MicroSmart. See page 4-1.
2. Check that a stop input is not designated using Configure > Function Area Settings > Run/Stop. See page 5-2.
Note: When a stop input is designated, the MicroSmart cannot be star ted or stopped by turning start control special inter-
nal relay M8000 on or off.
3. Select Online from the WindLDR menu bar, then select Download Program. Or, click the download icon .
The Download Program dialog box appears.
4. Click the PLC Start button to start operation, then the start control special internal relay M8000 is turned on.
5. Click the PLC Stop button to stop operation, then the start control special internal relay M8000 is turned off.
The PLC operation can also be started and stopped while WindLDR is in the monitor mode. To access the Start or Stop
button, select Online > Monitor and select Online > PLC Status > Run/Stop Status.
Note: Special internal relay M8000 is a keep type internal relay and stores the status when power is turned off. M8000
retains its previous status when power is turned on again. However, when the backup battery is dead, M8000 loses the
stored status, and can be turned on or off as programmed when the
MicroSmart is powered up. The selection is made in
Configure > Function Area Settings > Run/Stop > Run/Stop Selection at Memory Backup Error. See page 5-3.
The backup duration is approximately 30 days (typical) at 25°C after the backup battery is fully charged.
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