Introduction
All Maple Systems HMI Touch Screens programmed with EBPro (EasyBuilder Pro), including every cMT X Series and cMT Series model, are compatible with Elsist Modbus ASCII. Configure your Controller and HMI/cMT with the following parameters to establish reliable communication.
Supported Series: SlimLine & Netsyst controllers RS232/485
Website: www.elsist.biz
HMI Setting
| Parameters | Recommended | Options | Notes |
|---|---|---|---|
| PLC type | ELSIST MODBUS ASCII | ||
| PLC I/F | RS485 | RS232/RS485 | |
| Baud rate | 115200 | 9600~115200 | |
| Data bits | 8 | 7,8 | |
| Parity | Even | Even, Odd, None | |
| Stop bits | 1 | 1,2 | |
| PLC sta. no. | 1 | 0-254 (255 Broadcast) | |
| Online simulator | YES | ||
| Broadcast | YES | ||
| Extend address mode | YES |
PLC Setting
Communication mode: Modbus ASCII protocol
Device Address
| Bit/Word | Device type | Format | Range | Memo |
|---|---|---|---|---|
| B | %MX | DDDDD | 1 ~ 65535 | 0x01 read coil 0x05 write single coil |
| B | %MW_Bit | DDDDDdd | 100 ~ 6553515 | 0x03 read holding register 0x10 write single register |
| W | %MW | DDDDD | 1 ~ 65535 | 0x03 read holding register 0x10 write multiple register |
| DW | %MD | DDDDD | 1 ~ 65535 | 0x03 read holding register 0x10 write multiple register |
Wiring Diagram
NOTE: The serial port pin assignments may vary between HMI models.
Diagram 1: RS-232
| HMI | Direction | PLC |
|---|---|---|
| Pin assignments | COMx RS232 8P RJ45 | |
| Rx | ↔ (bidirectional) | 6 TX |
| Tx | ↔ (bidirectional) | 5 RX |
| GND | ↔ (bidirectional) | 4 GND |
Diagram 2: RS-485 2W
| HMI | Direction | PLC |
|---|---|---|
| Pin assignments | RS485 2W 3-Way TB | |
| Data- | ↔ (bidirectional) | 2 Data- |
| Data+ | ↔ (bidirectional) | 1 Data+ |
| GND | ↔ (bidirectional) | 3 GND |