WEINTEK Mitsubishi A173UH PLC Connection Via Ethernet Tutorial
Product Information
Specifications
- Supported Series: Mitsubishi A173UH, A2A, A2U, A2AS, A2USH, A3U
- PLC I/F: RS232
- Baud rate: 9600
- Data bits: 8
- Parity: Odd
- Stop bits: 1
Product Usage Instructions
Mitsubishi A173UH/A2A/A2U/A2AS/A2USH/A3U
Supported Series: Mitsubishi A173UH,A2A,A2U,A2AS,A2USH,A3U
Website: http://www.mitsubishi-automation.com/
HMI Setting
| Parameters | Recommended | Options | Notes |
| PLC type | Mitsubishi A173UH/A2A/A2U/A2AS/A2USH/A3U | ||
| PLC I/F | RS232 | ||
| Baud rate | 9600 | ||
| Data bits | 8 | ||
| Parity | Odd | ||
| Stop bits | 1 | ||
| PLC sta. no. | 0 | ||
| File register | 0 | 0 ~ 8 | *Note |
| Device type | A2A / A2U | A2A/A2U/A2AS/A2USH/
A173UH/A3U |
|
*Note: Parameter -> Memory capacity -> File register
Device Address
| Bit/Word | Device type | Format | Range | Memo |
| B | X | HHHH | 0 ~ 270f | Input Relay |
| B | Y | HHHH | 0 ~ 270f | Output Relay |
| B | M | DDDD | 0 ~ 9999 | Auxiliary Relay |
| B | B | HHHH | 0 ~ ffff | |
| B | F | DDDDD | 0 ~ 65535 | |
| W | TV | DDD | 0 ~ 2047 | Timer Memory |
| W | CV | DDD | 0 ~ 1023 | Counter Memory |
| W | D | DDDD | 0 ~ 9999 | Data Register |
| W | W | HHHH | 0 ~ ffff | |
| W | R | DDDDD | 0 ~ 65535 |
Pass-through
When the PC reboots or virtual com port is reinstalled, it needs to be re-initialized for pass-through.
Wiring Diagram
Use the RS422 to RS232 PLC programming cable (shown as follows)
Note: Due to hardware limitations, this PLC is not supported by HMI models without RTS/CTS.
Diagram 1
RS-232
The serial port pin assignments may vary between HMI models, please click the following link for more information.
| HMI | PLC Programming Converter | PLC | |
| Link | RS422 25P
D-Sub Male |
||
| Rx | TX | TX+ | 2 RX+ |
| Tx | RX | RX+ | 3 TX+ |
| GND | GND | DTR+ | 4 DSR+ |
| RTS | CTS | GND | 7 GND |
| CTS | RTS | TX- | 15 RX- |
| RX- | 16 TX- | ||
| DTR- | 17 DSR- | ||
Diagram 2
cMT-G01, cMT-G02, cMT-SVR-100/200, cMT-FHDX-820, cMT-SVRX-820 connection diagram 
FAQ
- Q: What should I do if the PC reboots and pass-through needs to be re-initialized?
A: You need to re-initialize the pass-through when the PC reboots or virtual com port is reinstalled. - Q: Which HMI models are not supported due to hardware limitations?
A: HMI models without RTS/CTS are not supported by this PLC.
Documents / Resources
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WEINTEK Mitsubishi A173UH PLC Connection Via Ethernet Tutorial [pdf] Instructions A173UH, A2A, A2U, A2AS, A2USH, A3U, Mitsubishi A173UH PLC Connection Via Ethernet Tutorial, Mitsubishi, A173UH PLC Connection Via Ethernet Tutorial, Connection Via Ethernet Tutorial, Via Ethernet Tutorial, Ethernet Tutorial |