Introduction
All Maple Systems HMI Touch Screens programmed with EBPro (EasyBuilder Pro), including every cMT X Series and cMT Series model, are compatible with LS Electric MASTER-K Modbus RTU. Configure your Controller and HMI/cMT with the following parameters to establish reliable communication.
Supported Series: LS MASTER-K MODBUS RTU
Website: www.ls-electric.com
HMI Setting
| Parameters | Recommended | Options | Notes |
|---|---|---|---|
| PLC type | LS MASTER-K MODBUS RTU | ||
| PLC I/F | RS485 2W | ||
| Baud rate | 9600 | ||
| Data bits | 8 | 8 | |
| Parity | Even | Even | |
| Stop bits | 1 | 1 | |
| PLC sta. no. | 1 |
Device Address
| Bit/Word | Device | Format | Range | Memo |
|---|---|---|---|---|
| B | PW_Bit | DDDDh | 0 ~ 9999f | I/O Relay (P) |
| B | KW_Bit | DDDDh | 0 ~ 9999f | Keep Relay (K) |
| B | MW_Bit | DDDDh | 0 ~ 9999f | Auxiliary Relay (M) |
| B | LW_Bit | DDDDh | 0 ~ 9999f | Link Relay (L) |
| B | FW_Bit | DDDDh | 0 ~ 9999f | Special Relay (F) |
| B | DW_Bit | DDDDh | 0 ~ 9999f | |
| W | MW | DDDD | 0 ~ 9999 | |
| W | LW | DDDD | 0 ~ 9999 | |
| W | FW | DDDD | 0 ~ 9999 | |
| W | TW | DDDD | 0 ~ 9999 | Timer (T) |
| W | CW | DDDD | 0 ~ 9999 | Counter (C) |
| W | SW | DDDD | 0 ~ 9999 | |
| W | DW | DDDD | 0 ~ 9999 | Data Register (D) |
| DW | TD | DDDD | 0 ~ 9999 | |
| DW | CD | DDDD | 0 ~ 9999 | |
| DW | SD | DDDD | 0 ~ 9999 | |
| DW | DD | DDDD | 0 ~ 9999 |
Wiring Diagram
NOTE: The serial port pin assignments may vary between HMI models.
RS-232
| HMI | Direction | PLC |
|---|---|---|
| Pin assignments | RS232 9P D-Sub Male | |
| Rx | ↔ (bidirectional) | 3 |
| Tx | ↔ (bidirectional) | 2 |
| GND | ↔ (bidirectional) | 5 |