Introduction
All Maple Systems HMIs programmed with EBPro (EasyBuilder Pro), including every cMT X Series and cMT Series model, are compatible with OuHua OHJX. Configure your Controller and HMI/cMT with the following parameters to establish reliable communication.
Website: http://www.ohjx.com/
HMI Settings
| Parameters | Recommended | Options | Notes |
|---|---|---|---|
| PLC type | OuHua OHJX | ||
| PLC I/F | RS-232 | ||
| Baud rate | 9600 | 9600, 19200 | |
| Data bits | 8 | ||
| Parity | Odd | ||
| Stop bits | 1 | ||
| PLC sta. no. | 1 |
Device Address
| Bit/Word | Device type | Format | Range | Memo |
|---|---|---|---|---|
| B | R100 | Dh | 0 ~ 1f | |
| B | R101 | Dh | 0 ~ 1f | |
| B | R102 | Dh | 0 ~ 1f | |
| B | R103 | Dh | 0 ~ 1f | |
| B | R104 | Dh | 0 ~ 1f | |
| B | R105 | Dh | 0 ~ 1f | |
| B | R106 | Dh | 0 ~ 1f | |
| B | R107 | Dh | 0 ~ 1f | |
| B | R108 | Dh | 0 ~ 1f | |
| B | R109 | Dh | 0 ~ 1f | |
| B | R110 | Dh | 0 ~ 1f | |
| B | R210 | Dh | 0 ~ 1f | |
| B | R310 | Dh | 0 ~ 1f | |
| B | R_Bit | DDDDh | 0 ~ 9999f | |
| W | SV | DDDD | 0 ~ 9999 | |
| W | EV | DDDDD | 0 ~ 65535 | |
| W | DT | DDDDD | 0 ~ 99999 | |
| W | LD | DDDD | 0 ~ 8447 | |
| W | WX | DDDD | 0 ~ 9999 | |
| W | WY | DDDD | 0 ~ 9999 | |
| W | WR | DDDD | 0 ~ 9999 | |
| W | WL | DDDD | 0 ~ 9999 | |
| W | FL | DDDDD | 0 ~ 99999 |
Wiring Diagram
NOTE: The serial port pin assignments may vary between HMI models.
RS-232
The view from the soldering point of a connector.
| HMI | Direction | PLC |
|---|---|---|
| Pin assignments | 4P Mini-DIN Male | |
| Rx | ↔ (bidirectional) | 3 TX |
| Tx | ↔ (bidirectional) | 2 RX |
| GND | ↔ (bidirectional) | 1 GND |
| ↕︎ (tie) | 4 GND |