4: OPERATION BASICS
OPENNET CONTROLLER USER’S MANUAL 4-3
Start/Stop Operation Using the Power Supply
The OpenNet Controller can be started and stopped by turning power on and off.
1. Power up the OpenNet Controller to start operation. See page 4-1.
2. If the
OpenNet Controller does not start, check that start control special internal relay M8000 is on using WindLDR. If
M8000 is off, turn it on. See page 4-2.
3. Turn power on and off to start and stop operation.
Note: If M8000 is off, the OpenNet Controller does not start operation when power is turned on. To start operation, turn
power on, and turn M8000 on by clicking the Start button in WindLDR.
The response time of the OpenNet Controller at powerup depends on such factors as the contents of the user program, data
link usage, and system setup. The table below shows an approximate time delay before starting operation after powerup.
Response time when no data link and remote I/O modules are used:
Order of Powerup and Powerdown
To ensure I/O data transfer, power up the I/O mod-
ules first, followed by the CPU module or power up
the CPU and I/O modules at the same time. When
shutting down the system, power down the CPU first,
followed by I/O modules or power down the CPU
and I/O modules at the same time.
Start/Stop Operation Using Stop Input and Reset Input
Any input I0 through I597 can be designated as a stop or reset input using Function Area Settings. The procedure for
selecting stop and reset inputs is described on page 5-1.
Note: When using a stop and/or reset input to start and stop operation, make sure that start control special internal relay
M8000 is on. If M8000 is off, then the CPU does not start operation when the stop or reset input is turned off. M8000 is
not turned on or off when the stop and/or reset input is turned on or off.
When a stop or reset input is turned on during program operation, the CPU stops operation, the RUN LED is turned off,
and all outputs are turned off.
The reset input has priority over the stop input.
System Statuses
The system statuses during running, stop, reset, and restart after stopping are listed below:
Note: Link registers used as outputs are turned off like outputs.
Program Size After powerup, the CPU starts operation in
1K words Approx. 1 second
4K words Approx. 2 seconds
8K words Approx. 3 seconds
16K words Approx. 5 seconds
Mode Outputs
Internal Relays, Shift Registers,
Counters, Data Registers
Timer
Current Value
Link Register
(Note)
Keep Type Clear Type
Run Operating Operating Operating Operating Operating
Stop (Stop input ON) OFF Unchanged Unchanged Unchanged Unchanged
Reset (Reset input ON) OFF OFF/Reset to zero OFF/Reset to zero Reset to zero Reset to zero
Restart Unchanged Unchanged OFF/Reset to zero Reset to preset Unchanged
I/O Module Power
ON
OFF
CPU Module Power
ON
OFF
0 sec or more 0 sec or more
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
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