Introduction
All Maple Systems HMIs programmed with EBPro (EasyBuilder Pro), including every cMT X Series and cMT Series model, are compatible with RS Automation OEMax Series. Configure your Controller and HMI/cMT with the following parameters to establish reliable communication.
Supported Series: OEMax NX7/NX7s Controllers
HMI Settings
| Parameters | Recommended | Options | Notes |
|---|---|---|---|
| PLC type | RS Automation OEMax Series | ||
| PLC I/F | RS232 | ||
| Baud rate | 9600 | 9600, 19200, 38400 | |
| Data bits | 8 | 8 | |
| Parity | None | Even, Odd, None | |
| Stop bits | 1 | 1 | |
| PLC sta. no. | 0 | ||
| HMI sta. no. | 225 | 0 ~ 255 | *Please correctly set HMI station number. |
Device Addresses
| Bit/Word | Device type | Format | Range | Memo |
|---|---|---|---|---|
| B | R | DDDdd | 0 ~ 255 | 15 |
| B | L | DDDdd | 0 ~ 255 | 15 |
| B | M | DDDDdd | 0 ~ 1999 | 15 |
| B | K | DDDdd | 0 ~ 255 | 15 |
| B | F | DDDdd | 0 ~ 991 | 15 |
| B | TC | DDD | 0 ~ 255 | Timer/Counter |
| W | W | DDDD | 0 ~ 7999 | Data Register |
| W | SV | DDD | 0 ~ 255 | Timer/Counter Set Value |
| W | PV | DDD | 0 ~ 255 | Timer/Counter Preset Value |
| W | SR | DDD | 0 ~ 255 | Special Register |
| W | WR | DDD | 0 ~ 255 | |
| W | WL | DDD | 0 ~ 255 | |
| W | WM | DDDD | 0 ~ 1999 | |
| W | WK | DDD | 0 ~ 255 | |
| W | WF | DDD | 0 ~ 991 |
Wiring Diagram
NOTE: The serial port pin assignments may vary between HMI models.
RS-232
| HMI | Direction | PLC |
|---|---|---|
| Pin assignments | Port1 RS232 9P D-Sub Male | |
| Rx | ↔ (bidirectional) | 2 |
| Tx | ↔ (bidirectional) | 3 |
| GND | ↔ (bidirectional) | 5 |