GW-2200i gateways allow Modbus TCP Master/Client devices to poll various sensors and I/O modules using Modbus RTU/ASCII Slave protocol. The GW-2200i also supports reverse connection when the Master is Modbus RTU/ASCII and the Slave is Modbus TCP Server/Slave. In addition, the serial line with Modbus RTU/ASCII protocol can be extended via Ethernet with intermediate conversion to Modbus TCP protocol. For this, you need to use two GW-2200i gateways.
ICP DAS Modbus gateways comparison table:
| Model name | tGW-700 | tGW-700i | GW-2200i |
|---|---|---|---|
| Photo |
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|
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| Ethernet ports | 1 | 1 | 2, (1 IP address) |
| COM port isolation | No | Yes | Yes |
| Dimensions, mm | 95 x 52 x 27 | 95 x 52 x 27 | 126 x 97 x 33 |
Main features of GW-2200i gateways:
- Supports Modbus TCP Client/Master and Server/Slave
- Supports Modbus RTU/ASCII Master and Slave
- 2-port daisy-chain Ethernet switch (LAN bypass)
- 3kV COM port isolation
- 4kV ESD protection
- Supports caching Modbus TCP commands to speed up operation
- Static IP or DHCP support
- Powered via PoE (IEEE 802.3af, Class 1) or an external power supply
GW-2200i series models comparison:
| Model name | Ethernet | RS-232 | RS-422 | RS-485 |
|---|---|---|---|---|
| GW-2212i | 2 | 1 | — | — |
| GW-2222i | 2 | — | — | |
| GW-2232i | 3 | — | — | |
| GW-2215i | — | 1 | ||
| GW-2225i | — | 2 | ||
| GW-2235i | — | 3 | ||
