Modbus to LAN converter

Wifi version supports 802.11 b/g/n standard, WEP64 / WEP128 / TKIP / AES security

Ethernet version supports 10/100M Ethernet Auto-Negotiation

Properties

Supported network protocols: TCP, UDP, MQTT, HTTP, WebSocket

Security: TLS v1.2 AES 128Bit DES3

RS485 connection: Baud Rate 600 - 230400 Baud, Data bits 7 / 8, Stop bits 1 / 2, Parity None / Even / Odd

Working temperature: -40 ~ 85°C

Dimensions: 102 x 65 x 27.5 mm

Power supply: 9 ～ 48VDC @ ~200mA

Instructions

1 .. DC Power Input (VCC+) 9 - 48VDC
2 .. DC Power Input (GND-)

5 .. RS485 (B)
6 .. GND
7 .. RS485 (A)

Reload .. Restore to factory settings. For PW11 used also for initialisation of Wi-Fi connection.
Reset .. Hardware reset

Active
- Off: No data transfer
- 0.3s Off → 0.9s on: UART TX Output
- 0.3s Off → 0.3s On: UART RX Receive

Link
- On: netp Socket connection OK
- Off: no netp Socket connection

Net (PE11 Ethernet version)
- On: Ethernet connection is OK
- Off: No Ethernet connection

Net (PW11 Wi-Fi version)
- 0.1s Off → 0.1s On: SmartLink Config Mode
- 0.3s Off → 3s On: STA mode connected to router
  or AP mode being connected by other STA
- 0.3s Off → 0.3s On: No Wi-Fi Connection

Power
- On: Power input OK
- Off: Power input NG

For Modbus RTU (RS485) communication, connect terminals A and B. Connecting GND is also recommended, if possible. The RS485 interface supports up to 32 devices. The maximum cable length is 1200 meters. A 120 Ohm termination resistor is required if the cable length exceeds 300 meters.

Connecting PW11 to an Existing Wi-Fi Network

1. Connect your computer to the Wi-Fi network named PW11_xxx.
2. Open a web browser and go to IP address 10.10.100.254.
3. If the address is not accessible, use a third-party IP scanner to find the correct one.
4. Log in using the default credentials:
   Username: admin
   Password: admin
5. Navigate to System Settings → WiFi Settings and set WiFi Mode to STA.
6. Press the Scan button to search for available Wi-Fi networks. Select your desired network and enter its password in the STA KEY field. Click the Submit button to save the settings.
7. Go to the Others section and click Restart.
8. After the device restarts, reconnect your computer to your original Wi-Fi network.

Configuring PW11 and PE11 (All Versions)

In the TapHome App

1. Go to Settings → IP Scanner.
   Copy the IP address associated with the manufacturer "Shanghai High-Flying Electronics".
2. Use this IP address when creating a new product from a template in Hardware → Modbus TCP. It will be stored in the corresponding Modbus module.

In a Web Browser

1. Open the copied IP address in your browser.
   Log in with the default credentials:
   Username: admin
   Password: admin
2. To ensure a stable connection between TapHome and the gateway, either:
   - Create a DHCP reservation for this MAC address in your router, or
   - Go to System Settings → WAN Settings, disable DHCP, and manually assign a static WAN IP address.
3. Match the serial port settings to your Modbus RTU device:
   Go to Serial Port Settings → Basic Settings and set the correct values for:
   Baud Rate
   Data Bit
   Stop Bit
   Parity
4. In Serial Port Settings → Flow Control Settings, select Half Duplex.
5. In Serial Port Settings → Protocol, select Modbus.
6. In Communication Settings → Socket Settings, set the Local Port to 502.
7. Check if Modbus communication is working properly in Status → Serial Port State.