LG Electronics 120S user manual Example of Usage, Error code

Chapter 8 Communication Functions

3) Error code

Code	Error type	explanation
06	Slave Device Busy	It’s sending or waiting to receive
09	Parameter Error	Communication parameter setting error, Link enable setting error
10	Frame Type Error	Frame does not setting or frame does not ‘sending’

8.2.4 Example of Usage

This example is supposed that there’s a communication between MASTER-K120S’s by the user-defined protocol. The system configuration is as follows and the cable is the same with the one of 1:1 dedicated protocol communication.

MASTER-K120S main unit	MASTER-K120S main unit
	(Slave: Station No. 1)
(Master: Station no. 0)

1:1 dedicated protocol communication cable

The data in M area of the master station is sent to the slave station and the slave station saves received data in M area, output as direct variable, and sends the data back to the master. This process repeats between the master and the slave.

1)The Programming and setting communication parameter of the master station

①Select the communication parameter and then select communication method and communication channel. ② Select ‘user Defined’ at protocol and mode item(‘list item is activated), then Click the ‘list’

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