Introduction
All Maple Systems HMIs programmed with EBPro (EasyBuilder Pro), including every cMT X Series and cMT Series model, are compatible with Keyence KV-L20V/700/1000/3000/5000/Nano Series (KV Studio Mode). Configure your Controller and HMI/cMT with the following parameters to establish reliable communication.
Supported series: KV-L20V, 700, 1000, 3000, 5000 series, KV Nano series
Website: keyence.com
HMI Settings
| Parameters | Recommended | Options | Notes |
|---|---|---|---|
| PLC type | KEYENCE KV-L20V/700/1000/3000/5000/Nano Series (KV Studio Mode) | ||
| PLC I/F | RS232 | RS232, RS485 2W, RS485 4W | |
| Baud rate | 115200 | 9600 ~ 115200 | |
| Data bits | 8 | ||
| Parity | Even | ||
| Stop bits | 1 | ||
| PLC sta. no. | 0 | ||
| Online simulator | YES | ||
| Extend address mode | NO |
PLC Setting
| Parameter | Value |
|---|---|
| Communication mode | KV STUDIO mode |
Device Address
| Bit/Word | Device Type | Format | Range | Memo |
|---|---|---|---|---|
| B | MR | DDDdd | 0 ~ 99915 | |
| B | LR | DDDdd | 0 ~ 99915 | |
| B | CR | DDDdd | 0 ~ 99915 | |
| B | R | DDDdd | 0 ~ 99915 | |
| B | B | HHHh | 0 ~ 3FFF | |
| B | T | DDDD | 0 ~ 9999 | |
| B | C | DDDD | 0 ~ 9999 | |
| B | DM_Bit | DDDDDdd | 0 ~ 6553515 | |
| B | TM_Bit | DDDDdd | 0 ~ 999915 | |
| B | CM_Bit | DDDDDdd | 0 ~ 6553515 | |
| B | CTC_Bit | Ddd | 0 ~ 315 | |
| B | W_Bit | HHHHh | 0 ~ 3FFFF | |
| B | VM_Bit | DDDDDdd | 0 ~ 6553515 | |
| B | VB_Bit | HHHh | 0 ~ 3FFF | |
| W | DM | DDDDD | 0 ~ 65535 | |
| W | TM | DDDD | 0 ~ 9999 | |
| W | CM | DDDDD | 0 ~ 65535 | |
| W | EM | DDDDD | 0 ~ 65535 | |
| W | FM | DDDDD | 0 ~ 65535 | |
| W | MR_Word | DDD | 0 ~ 999 | |
| W | LR_Word | DDD | 0 ~ 999 | |
| W | CR_Word | DDD | 0 ~ 999 | |
| W | W | HHHH | 0 ~ 3FFF | |
| W | VM | DDDDD | 0 ~ 65535 | |
| W | VB | HHH | 0 ~ 3FFF | |
| W | R_Word | DDD | 0 ~ 999 | |
| W | B_Word | HHH | 0 ~ 3FF | |
| W | TC | DDDD | 0 ~ 9999 | |
| W | TS | DDDD | 0 ~ 9999 | |
| W | CC | DDDD | 0 ~ 9999 | |
| W | CS | DDDD | 0 ~ 9999 | |
| DW | CTH | D | 0 ~ 1 | |
| DW | CTC | D | 0 ~ 3 | |
| DW | Z_DWORD | DD | 1 ~ 12 |
Wiring Diagrams
NOTE: The serial port pin assignments may vary between HMI models.
Diagram 1: RS-232 (OP-26486 9P RS232)
| HMI | Direction | PLC |
|---|---|---|
| Pin assignments | OP-26486 9P D-Sub Male | |
| Rx | ↔ (bidirectional) | 3 |
| Tx | ↔ (bidirectional) | 2 |
| GND | ↔ (bidirectional) | 5 |
Diagram 2: RS-232 (KV-L20V Port2 RS232 Terminal)
| HMI | Direction | PLC |
|---|---|---|
| Pin assignments | KV-L20V Port2 RS232 terminal | |
| Rx | ↔ (bidirectional) | 3 |
| Tx | ↔ (bidirectional) | 5 |
| GND | ↔ (bidirectional) | 1 |
Diagram 3: RS-485 2W (KV-L20V Port2 RS485 2W)
| HMI | Direction | PLC |
|---|---|---|
| Pin assignments | KV-L20V Port2 RS485 2W terminal | |
| Data- | ↔ (bidirectional) | 3 |
| Data+ | ↔ (bidirectional) | 5 |
| GND | ↔ (bidirectional) | 1 |
Diagram 4: RS-485 4W (KV-L20V Port2 RS485 4W Terminal)
| HMI | Direction | PLC |
|---|---|---|
| Pin assignments | KV-L20V Port2 RS485 4W terminal | |
| Rx- | ↔ (bidirectional) | 3 |
| Rx+ | ↔ (bidirectional) | 5 |
| Tx- | ↔ (bidirectional) | 2 |
| Tx+ | ↔ (bidirectional) | 4 |
| GND | ↔ (bidirectional) | 1 |
Diagram 5: RS-232 (RJ11 6P RS232)

| HMI | Direction | PLC |
|---|---|---|
| Pin assignments | RS232 6P RJ11 Male | |
| Rx | ↔ (bidirectional) | 2 SD |
| Tx | ↔ (bidirectional) | 4 RD |
| GND | ↔ (bidirectional) | 3 SG |
