Modbus to Ethernet Bridge
Table 1 | Front Panel Components (See Figure 4) |
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Item | Component | Name | Purpose |
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1 | Wire terminal | RxD or Rx ± | Modbus signal: | |
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| RS±232: RxD (Receive Data) | |
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| RS±422.485: RxD± (Receive Data ±) | |
2 | Wire terminal | CTS or Rx + | Modbus signal: | |
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| RS±232: CTS (Clear to Send) | |
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| RS±422/485: RxD+ (Receive Data +) | |
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3 | Wire terminal | RTS or Tx + | Modbus signal: | |
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| RS±232: RTS (Request to Send) | |
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| RS±422/485: TxD± (Transmit Data +) | |
4 | Wire terminal | TxD or Tx ± | Modbus signal: | |
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| RS±232: TxD (Transmit Data) | |
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| RS±422/485: TxD± (Transmit Data ±) | |
5, 6, 7 | Wire terminal | NC | No connection | |
8 | Wire terminal | GND | Modbus signal ground | |
9 | Reset switch | RST | Push to reset and initialize Bridge | |
10 | LED (Red) | Fault or | ON: Fault in Bridge communication | |
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| Configuration | (or) Bridge is in Configuration Menu | |
11 | LED (Green) | Ready | ON: Bridge is ready for communication | |
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| on both ports | |
12 | LED (Yellow) | Active Ethernet | Flashing: Indicates activity at Bridge's | |
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| Ethernet port | |
13 | LED (Green) | Link Good | ON: Bridge has good connection at | |
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| Ethernet port | |
14 | Connector (RJ45) | Ethernet port | RJ45 connector for Ethernet 10BaseT | |
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15 | Connector (RJ45) | Modbus port | RJ45 connector for Modbus RS±232 or | |
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| RS±485 cable | |
16 | LED (Yellow) | Modbus Tx | Flashing: Indicates transmission or | |
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| upload at Modbus port | |
17 | LED (Yellow) | Modbus Rx | Flashing: Indicates reception at Modbus | |
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18 | Switch | Modbus interface | UP: | Modbus port is RS±232 |
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| selection | DOWN: | Modbus port is RS±422/485 |
19 | Wire terminal | DC + | Operating power, positive | |
20 | Wire terminal | Ground | Earth ground | |
21 | Wire terminal | DC ± | Operating power, negative | |
22 | Wire terminal | Ground | Earth ground | |
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