LG Electronics 120S user manual Basic Parameters

Appendix 1 System Definitions

2) Basic Parameters

The basic parameters are necessary for operation of the PLC.

Set the ‘Latch area’, ‘Timer boundary’’ , ‘Watchdog timer’, ‘PLC operation mode’, ‘Input setting’, ‘Pulse catch’

(1) Latch area setting

Set the retain area on the inner device.

(2) Timer boundary setting

Set the 100ms/10ms/1ms timer boundary.

( If 100ms and 10ms timer are set, the rest of timer area is allocated 1ms automatically)

(3) Watchdog timer setting

For the purpose of the watch of normal program execution ,.

This parameter is used to set the maximum allowable execution time of a user program in order to supervisor its normal or abnormal operation. (Setting range is 10ms ~ 6000ms)

(4) Input setting

set the input filter constant and input catch contact point

(5) Remote access control setting

When this parameter is set, the operation mode of PLC system can be changed by remote access with FAM or communication module.

App1-4