IDEC MicroSmart User Manual

Page 116

4: O

PERATION

ASICS

4-4

« FC4A M

ICRO

MART

SER

’

ANUAL

Start/Stop Operation Using the Power Supply

The

MicroSmart

can be started and stopped by turning power on and off.

1. Power up the

MicroSmart

to start operation. See page 4-1.

2. If the

MicroSmart

does not start, check that start control special internal relay M8000 is on using

WindLDR

. If M8000

is off, turn it on. See page 4-3.

3. Turn power on and off to start and stop operation.

Note: If M8000 is off, the

MicroSmart

does not star t operation when power is turned on. To star t operation, turn power on,

and turn M8000 on by clicking the Start button in

WindLDR

The response time of the

MicroSmart

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:

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.

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 Set-
tings. The procedure for selecting stop and reset inputs is described on page 5-2.

Note: When using a stop and/or reset input to star t and stop operation, make sure that star t control special internal relay
M8000 is on. If M8000 is off, the CPU does not star t 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 and AS-Inter face operands are available on slim type CPU modules FC4A-D20RK1, FC4A-
D20RS1, FC4A-D40K3, and FC4A-D40S3. All expansion data registers are keep types. AS-Inter face operands (M1300-
M1977 and D1700-D1999) remain unchanged when the reset input is turned on.

Program Size

After powerup, the CPU starts operation in

4,800 bytes (800 steps)

Approx. 0.5 second

15,000 bytes (2,500 steps)

Approx. 1.2 seconds

27,000 bytes (4,500 steps)

Approx. 2 seconds

64,500 bytes (10,750 steps)

Approx. 5 seconds

Mode

Output

Internal Relay, Shift Register, Counter,

Data Register, Expansion Data Register

Timer Current Value

Keep Type

Clear Type

Run

Operating

Stop (Stop input ON)

OFF

Unchanged

Reset (Reset input ON)

OFF

OFF/Reset to zero

Reset to zero

Restar t

Unchanged

OFF/Reset to zero

Reset to preset

I/O Module Power

OFF

CPU Module Power

OFF

0 sec or more