Wecon LX Series User Manual

WECON Technology Co., Ltd.
3
contact and a NC contact would inhibit the flow.
Physical inputs to the PLC (X devices) have no programmable coil. These devices
may only be used in a contact format (NO and NC types are available).
Example:
Because of the close relay association, ladder logic programs can be read as current
flowing from the left vertical line to the right vertical line. This current must pass
through a series of contact representations such as X0 and X1 in order to switch the
output coil Y0 ON. Therefore,in the example shown, switching X0 ON causes the
output Y0 to also switch ON. If however,the limit switch X1 is activates, the output Y0
turns OFF. This is because the connection between the left and the right vertical lines
breaks so there is no current flow.
4.Load, Load Inverse
Program example:

Wecon LX Series Specifications

General

Brand	Wecon
Model	LX Series
Category	Controller
Language	English