IDEC MicroSmart Pentra - Manual (Page 53)

W EB S ERVER CPU M ODULE U SER ’ S M ANUAL FC9Y-B1278 4-7
4: O PERATION B ASICS
Start/Stop Operation Using the Power Supply
The Web server CPU module can be started and stopped by turning power on and off.
1. Power up the Web server CPU module to start operation. See “Introduction” on page 4-1.
2. If the Web server CPU module does not start, check that start control special internal relay M8000 is on using
WindLDR. If M8000 is off, turn it on. See “Start/Stop Operation Using WindLDR” on page 4-6.
3. Turn power on and off to start and stop operation.
Note: If M8000 is off, the Web server CPU module 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 Web server CPU module 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 is used:
Start/Stop Operation Using Stop Input and Reset Input
Any input terminal available on the CPU module can be designated as a stop or reset input using the Function Area
Settings. The procedure for selecting stop and reset inputs is described in "Stop Input and Reset Input" of the basic
volume (page 5-2).
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, 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 at Stop, Reset, and Restart
The system statuses during running, stop, reset, and restart after stopping are listed below:
Note: Expansion data registers are available on slim type CPU modules. All expansion data registers are keep types.
Program Size
After powerup, the CPU starts operation in
No memory cartridge is
installed
Memory cartridge is
installed
13,800 bytes (2,300 steps) Approx. 1.7 seconds Approx. 1.5 seconds
27,000 bytes (4,500 steps) Approx. 2.5 seconds Approx. 2.1 seconds
54,000 bytes (9,000 steps) Approx. 4.5 seconds Approx. 3.5 seconds
62,400 bytes (10,400 steps) Approx. 5 seconds Approx. 4 seconds
127,800 bytes (21,300 steps) Approx. 9 seconds Approx. 7 seconds
Order of Powerup and Powerdown
To ensure I/O data transfer, power up the I/O modules 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.
I/O Module Power
CPU Module Power
ON
OFF
ON
OFF
0 sec or more 0 sec or more
Mode Output
Internal Relay, Shift Register, Counter,
Data Register, Expansion DR, Extra DR
Timer Current Value
Keep Type Clear Type
Run Operating Operating Operating Operating
Stop (Stop input ON) OFF Unchanged Unchanged Unchanged
Reset (Reset input ON) OFF OFF/Reset to zero OFF/Reset to zero Reset to zero
Restart Unchanged Unchanged OFF/Reset to zero Reset to preset