4 setting switches of operation mode, Mandatory, Setting switches of operation mode – Toshiba SX 2000 User Manual

Page 29: J>caution

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Chapt.1 System Configuration

1.2.4

Setting Switches of Operation Mode

These switches are provided under the battery cover on the CPU front panei.

They controi the foiiowing fanctions. (SW-1 is ON, SW2, 3, 4 are set to OFF at the factory.)

. ROM/RAM Switch

_RUN/Stand-by Switch

:CPU reads this status when power is

changed from OFF to ON or when operation
mode is changed to RUN.

:CPU reads this status oniy when power

turns to ON.

•Programmer Port Parity :CPU reads this status oniy when power

turns to ON.

Reserved (fixed to OFF)

SW-1 ROM/RAM Switch

Setting

Position

SW-1

Function

CPU operation

at power up and at the beginning of the RUN mode

OFF

ROM

Starts up after the content of the Flash ROM has been transferred to

the RAM. (Initial Load)

ON

RAM

Starts up on the content of the RAM.

(No program transfer)

SW-2 RUN/Stand-by Switch

Setting

Position

SW-2

Function

Operation

Mode

Switch

Mode after

power up

Remarks

OFF

Automatic

RUN

HALT

HALT

RUN

RUN

Automatic RUN start occurs.

ON

Stand-by

HALT

HALT

RUN

Starts up in the HALT mode. Ready to start

operation by an operate command from the

programming tool or by shifting the operation

mode switch.(^^LT^RUN)

is OFF, mode is set to Automatic RUN.

SW-3 Programmer Port Parity

Setting

Position

SW-3

Function

Remarks

OFF

Odd Parity

8 bit Data, 9600bps, Data length is libit.

ON

No Parity

8 bit Data, 9600bps, Data length is lObit.

<J>CAUTION

Mandatory

Set the switches of the CPU and I/O modules according to each instructions.

Mis-setting can cause malfunction or system accidents.

12

Sequence Controller S2T

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