Introduction
All Maple Systems HMIs programmed with EBPro (EasyBuilder Pro), including every cMT X Series and cMT Series model, are compatible with Panasonic MINAS A4. Configure your Controller and HMI/cMT with the following parameters to establish reliable communication.
Supported Series: Panasonic MINAS A4 series Servo Drive
HMI Settings
| Parameters | Recommended | Options | Notes |
|---|---|---|---|
| PLC type | Panasonic MINAS A4 | ||
| PLC I/F | RS232 | ||
| Baud rate | 9600 | 2400 ~ 57600 | |
| Data bits | 8 | ||
| Parity | None | ||
| Stop bits | 1 | ||
| Axis no. | 0 (master station only) | 0 ~ F (slave) |
Device Address
| Bit/Word | Device Type | Format | Range | Memo |
|---|---|---|---|---|
| B | Command 20 | D | 0 ~ 7 | States (Note 3) |
| B | Command 27 | DD | 0 ~ 31 | Input Signal (Note 3) |
| B | Command 28 | DD | 0 ~ 31 | Output Signal (Note 3) |
| W | Command 01 | D | 0 | CPU Version (Numeric format: 16-bit Hex) |
| W | Command 05 | DD | 0 ~ 11 | Driver Version (ASCII / 12 words) |
| W | Command 06 | DD | 0 ~ 11 | Motor Version (ASCII / 12 words) |
| W | Command 21 | D | 0 ~ 1 | command pulse counter (Numeric format: 32-bit Signed) |
| W | Command 22 | D | 0 ~ 1 | feedback pulse counter (Numeric format: 32-bit Signed) |
| W | Command 24 | D | 0 | present speed (Numeric format: 16-bit Unsigned) |
| W | Command 25 | D | 0 | present torque (Numeric format: 16-bit Unsigned) |
| W | Command 26 | D | 0 ~ 1 | present deviation counter (Numeric format: 32-bit Signed) |
| W | Command 84 | D | 0 | write parameter to EEPROM (Note 1) |
| W | Command 90 | D | 0 | present Alarm Data (Numeric format: 16-bit Unsigned) |
| W | Command 91 | DD | 1 ~ 14 | Alarm History (Note 4) (Numeric format: 16-bit Unsigned) |
| W | Command 92 | DD | 1 ~ 14 | Batch Alarm (Note 4) (Numeric format: 16-bit Unsigned) |
| W | Command 93 | D | 0 | clear Alarm History (include EEPROM) (Note 1) |
| W | Command 94 | D | 0 | Alarm Clear (Note 1) |
| W | Command 9B | D | 0 | Absolute Clear (Note 1) |
| W | Parameter | HH | 0 ~ 7f | Individual Parameter (range: 0x00 ~ 0x7F) (Note 2) |
| W | Comm2D_S | D | 0 ~ 1 | Command 2D Single turn data (Numeric format: 32-bit Signed) |
| W | Comm2D_M | D | 0 ~ 1 | Command 2D Multi-turn data (Numeric format: 32-bit Signed) |
Notes
Command 84,Command 93,Command 94, andCommand 9Bare write only. (These commands are able to use Set Bit Object and execute the write command after triggering Set Bit Object.) Commands other than these four are read only.- Parameter read/write: Use device type to define address control from
00~7F. For example:address_00is mapping toParameter_00. (Please refer to Panasonic MINAS A4 Series User Manual.) - Device address type can define MINAS A4 Driver’s command list.
Command 20,Command 27, andCommand 28are Bit type, use “Operating range” to map communication order status. For example:Command 20_3means “Read state_CCW”. (Please refer to Panasonic MINAS A4 Series User Manual.) Command 91andCommand 92are word type, use “Operating range” to map the record of 14 alarms. For example:Command 91_1means “Read alarm data_First alarm”.
Wiring Diagram
NOTE: The serial port pin assignments may vary between HMI models.
RS-232 (MINAS A4 Driver CNX4 Port)
The following is the view from the soldering point of a connector.

| HMI | Direction | PLC |
|---|---|---|
| Pin assignments | RS232 8P Mini-DIN Male | |
| Rx | ↔ (bidirectional) | 3 TXD |
| Tx | ↔ (bidirectional) | 5 RXD |
| GND | ↔ (bidirectional) | 4 GND |
| MINAS A4 Driver CNX4 Port | Cable |
|---|---|
| 3 TX | RS232 cable / DVOP1960 |
| 5 RX | RS232 cable / DVOP1960 |
| 4 GND | RS232 cable / DVOP1960 |
The HMI connects to the first MINAS A4 driver via RS232 (CNX4 port). Additional drivers are chained together using RS485 (CNX3 to CNX4).
| Connection | Cable | Pins |
|---|---|---|
| HMI → MINAS A4 Driver (CNX4, 9P D-Sub Female) | RS232 cable / DVOP1960 | 3 RXD, 2 TXD, 5 GND ↔ 5 RXD, 3 TXD, 4 GND |
| MINAS A4 Driver CNX4 → MINAS A4 Driver CNX3 (8P Mini-DIN Male) | RS485 cable / DVOP1970-005 | 7 D-, 8 D+, 4 GND ↔ 7 D-, 8 D+, 4 GND |
HMI Connect with One Device

HMI Connect with Multiple Devices

