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 SNP-X. Configure your Controller and HMI/cMT with the following parameters to establish reliable communication.
Supported Series: GE 90-30, 90 micro and VersaMax series PLC, 90-70 series with
Website: ge.com
HMI Settings
| Parameters | Recommended | Options | Notes |
|---|---|---|---|
| PLC type | GE SNP-X | ||
| PLC I/F | RS485 4W | RS232/RS485 | |
| Baud rate | 19200 | 9600 ~ 115200 | |
| Data bits | 8 | 7, 8 | Must set to 8 for this protocol |
| Parity | Odd | Even, Odd, None | |
| Stop bits | 1 | 1, 2 | |
| PLC sta. no. | 0 | 0–255 | Does not apply to this protocol |
PLC Setting
Refer to the related PLC manual.
Device Address
| Bit/Word | Device | Format | Range | Memo |
|---|---|---|---|---|
| B | I |
DDDDD |
1 ~ 10000 | Input relay |
| B | Q |
DDDDD |
1 ~ 10000 | Output relay |
| B | M |
DDDDD |
1 ~ 10000 | Auxiliary relay |
| B | G |
DDDD |
1 ~ 7680 | |
| B | T |
DDD |
1 ~ 256 | |
| B | SA |
DDD |
1 ~ 128 | |
| B | SB |
DDD |
1 ~ 128 | |
| B | SC |
DDD |
1 ~ 128 | |
| B | S |
DDD |
1 ~ 128 | |
| B | R_bit |
DDDDDdd |
100 ~ 3264015 | Data register bit |
| W | AI |
DDDDD |
1 ~ 10000 | Analog input register |
| W | AQ |
DDDDD |
1 ~ 10000 | Analog output register |
| W | R |
DDDDD |
1 ~ 32640 | Data register |
Wiring Diagrams
NOTE: The serial port pin assignments may vary between HMI models.
Diagram 1: RS-485 4W (CPU Port: 90-30/VersaMax)
| HMI | Direction | PLC |
|---|---|---|
| Pin assignments | RS422 15P 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 |
Diagram 2: RS-232 (CPU Port: 90-30 series CPU351/352/363/364)
| HMI | Direction | PLC |
|---|---|---|
| Pin assignments | RS232 6P RJ11 Male |
|
| Rx | ↔ (bidirectional) | 2 |
| Tx | ↔ (bidirectional) | 5 |
| GND | ↔ (bidirectional) | 3 |
Diagram 3: RS-232 (CPU Port: VersaMax series CPU001/002/005/E05)
| HMI | Direction | PLC |
|---|---|---|
| Pin assignments | RS232 8P RJ45 Male |
|
| Rx | ↔ (bidirectional) | 4 |
| Tx | ↔ (bidirectional) | 3 |
| GND | ↔ (bidirectional) | 8 |