Introduction
All Maple Systems HMIs programmed with EBPro (EasyBuilder Pro), including every cMT X Series and cMT Series model, are compatible with GE Intelligent Platforms RX3i. Configure your Controller and HMI/cMT with the following parameters to establish reliable communication.
Website: http://www.ge.com
HMI Settings
| Parameters | Recommended | Options | Notes |
|---|---|---|---|
| PLC type | GE RX3i | ||
| PLC I/F | RS232 | RS232, RS485 | |
| Baud rate | 19200 | 1200~115200 | |
| Data bits | 8 | ||
| Parity | Odd | None, Even, Odd | |
| Stop bits | 1 | 1 or 2 | |
| SNP ID | 1 | 0~255 (None) |
PLC Settings
Port Mode: SNP Slave
Device Address
| Bit/Word | Device type | Format | Range | Memo |
|---|---|---|---|---|
| B | I | DDDDD | 1 ~ 32768 | |
| B | Q | DDDDD | 1 ~ 32768 | |
| B | M | DDDDD | 1 ~ 32768 | |
| B | G | DDDDD | 1 ~ 32768 | |
| B | T | DDDDD | 1 ~ 32768 | |
| B | SA | DDDDD | 1 ~ 32768 | |
| B | SB | DDDDD | 1 ~ 32768 | |
| B | SC | DDDDD | 1 ~ 32768 | |
| B | S | DDDDD | 1 ~ 32768 | |
| W | AI | DDDDD | 1 ~ 32768 | |
| W | AQ | DDDDD | 1 ~ 32768 | |
| W | R | DDDDD | 1 ~ 32768 |
Wiring Diagrams
NOTE: The serial port pin assignments may vary between HMI models.
Diagram 1: RS-232
| HMI | Direction | PLC |
|---|---|---|
| Pin assignments | RS232 9P 9D-Sub Male | |
| Rx | ↔ (bidirectional) | 2 |
| Tx | ↔ (bidirectional) | 3 |
| GND | ↔ (bidirectional) | 5 |
Diagram 2: RS-485 4W
| HMI | Direction | PLC |
|---|---|---|
| Pin assignments | RS485 4W 25P D-Sub Male | |
| Rx- | ↔ (bidirectional) | 12 |
| RX+ | ↔ (bidirectional) | 13 |
| Tx- | ↔ (bidirectional) | 7 |
| Tx+ | ↔ (bidirectional) | 10 |
| GND | ↔ (bidirectional) | 11 9 |
| ↕︎ (tie) | 6 15 | |
| ↕︎ (tie) | 8 14 |