This document introduces the connection instructions of the LG Master K120S/200S HMI with various brands, including the definition of the controller's Read/Write addresses and the connection of the interface.
This manual provides the essential information for operating the LG Master K120S/200S controller. It includes the RS‑232 communication settings, connector type, and pinout details required for proper integration.
The document also lists the default word and bit device parameters used by the controller, along with revision information for reference.
| Connector type | 9‑pin D‑SUB male |
|---|---|
| RS-232 baud rate | 38400, 8, None, 1 |
| RXD pin | Pin 2 (or 3) |
| TXD pin | Pin 3 (or 2) |
| GND pin | Pin 5 (or 6) |
| Document revision | V1.00 October 2009 |
It uses a 9‑pin D‑SUB male connector.
38400 baud, 8 data bits, no parity, 1 stop bit.
RXD is on pin 2 (or 3), TXD on pin 3 (or 2), and GND on pin 5 (or 6).