Tutto sui PLC: la CPU
A practical engineering guide to PLC CPU operation, from deterministic scan cycles and I/O image tables to memory, communications, diagnostics, redundancy, processor sizing, and reliable system...
Facilitating seamless protocol translation between serial Modbus RTU/ASCII and Ethernet-based Modbus TCP networks, the Weidmuller 1504470000 (model IE-GWT-MB-2TX-1RS232/485) serves as an industrial-grade communication gateway designed for high-reliability automation environments. This device bridges legacy serial field devices with modern Ethernet control architectures, ensuring low-latency data transmission and robust network integration.
| Parameter | Value |
|---|---|
| Manufacturer | Weidmuller |
| Article Number (SKU) | 1504470000 |
| Model Designation | IE-GWT-MB-2TX-1RS232/485 |
| Ethernet Ports | 2x RJ45 (10/100BaseT(X)) |
| Serial Ports | 1x RS-232/425/485 (DB9 male or terminal block options) |
| Supply Voltage | 24 V DC (Redundant inputs) |
| Connector Type | 1 removable 7-pole terminal block |
| Operating Temperature | -40 to 75 degC |
| Storage Temperature | -40 to 85 degC |
| Ambient Relative Humidity | 5% to 95% (non-condensing) |
| Protection Class | IP30 |
| Housing Material | Plastic |
| Mounting Type | DIN rail |
| Dimensions (W x H x D) | 29 mm x 124.5 mm x 89.2 mm |
| Net Weight | 190 g |
| Shipping Weight (Calculated) | 1.0 kg |
| Interface / Terminal | Functional Assignment |
|---|---|
| 7-Pole Terminal Block | Redundant Power Input 1 (V1+, V1-), Redundant Power Input 2 (V2+, V2-), Functional Earth (FE) |
| RJ45 Ports (1 & 2) | 10/100BaseT(X) Ethernet interfaces with auto MDI/MDI-X crossover detection |
| Serial Port | RS-232 (TxD, RxD, GND) / RS-485 (Data+, Data-, GND) software-configurable pins |
The IE-GWT-MB-2TX-1RS232/485 is backward compatible with standard Modbus RTU devices operating over RS-485 2-wire networks. When replacing older single-port serial servers, the dual Ethernet ports on this model eliminate the need for an external switch in simple line topologies, reducing overall panel hardware costs.
In high-density electrical cabinets, ensure adequate clearance around the IP30 plastic housing to maintain natural convection cooling. While rated up to 75 degC, operating continuously at extreme temperatures without proper ventilation can accelerate component aging. Always verify that the Modbus TCP client timeout settings are configured to accommodate the serial bus latency, especially when polling multiple daisy-chained RTU slaves.
When wiring the RS-485 network, always install a 120-ohm termination resistor at both physical ends of the communication line to prevent signal reflections. Ensure the Functional Earth (FE) terminal on the 7-pole block is connected directly to a low-impedance ground plane to safeguard the internal transceiver circuits from transient voltage spikes and electromagnetic interference.
Disconnect all power sources before attempting installation, wiring, or removal of the gateway. Failure to de-energize the system can result in electrical shock, equipment damage, or unexpected control system behavior.
Mount the gateway onto a standard TS 35 DIN rail, ensuring the locking mechanism snaps firmly into place.
Connect the Functional Earth (FE) terminal to the local ground system to ensure proper noise immunity.
Wire the redundant 24 V DC power supplies to the removable 7-pole terminal block, verifying correct polarity before energizing.
Connect the RJ45 Ethernet cables and the serial interface lines, securing all physical connections.
Global Express Shipping
Returns & Warranty

Facilitating seamless protocol translation between serial Modbus RTU/ASCII and Ethernet-based Modbus TCP networks, the Weidmuller 1504470000 (model IE-GWT-MB-2TX-1RS232/485) serves as an industrial-grade communication gateway designed for high-reliability automation environments. This device bridges legacy serial field devices with modern Ethernet control architectures, ensuring low-latency data transmission and robust network integration.
| Parameter | Value |
|---|---|
| Manufacturer | Weidmuller |
| Article Number (SKU) | 1504470000 |
| Model Designation | IE-GWT-MB-2TX-1RS232/485 |
| Ethernet Ports | 2x RJ45 (10/100BaseT(X)) |
| Serial Ports | 1x RS-232/425/485 (DB9 male or terminal block options) |
| Supply Voltage | 24 V DC (Redundant inputs) |
| Connector Type | 1 removable 7-pole terminal block |
| Operating Temperature | -40 to 75 degC |
| Storage Temperature | -40 to 85 degC |
| Ambient Relative Humidity | 5% to 95% (non-condensing) |
| Protection Class | IP30 |
| Housing Material | Plastic |
| Mounting Type | DIN rail |
| Dimensions (W x H x D) | 29 mm x 124.5 mm x 89.2 mm |
| Net Weight | 190 g |
| Shipping Weight (Calculated) | 1.0 kg |
| Interface / Terminal | Functional Assignment |
|---|---|
| 7-Pole Terminal Block | Redundant Power Input 1 (V1+, V1-), Redundant Power Input 2 (V2+, V2-), Functional Earth (FE) |
| RJ45 Ports (1 & 2) | 10/100BaseT(X) Ethernet interfaces with auto MDI/MDI-X crossover detection |
| Serial Port | RS-232 (TxD, RxD, GND) / RS-485 (Data+, Data-, GND) software-configurable pins |
The IE-GWT-MB-2TX-1RS232/485 is backward compatible with standard Modbus RTU devices operating over RS-485 2-wire networks. When replacing older single-port serial servers, the dual Ethernet ports on this model eliminate the need for an external switch in simple line topologies, reducing overall panel hardware costs.
In high-density electrical cabinets, ensure adequate clearance around the IP30 plastic housing to maintain natural convection cooling. While rated up to 75 degC, operating continuously at extreme temperatures without proper ventilation can accelerate component aging. Always verify that the Modbus TCP client timeout settings are configured to accommodate the serial bus latency, especially when polling multiple daisy-chained RTU slaves.
When wiring the RS-485 network, always install a 120-ohm termination resistor at both physical ends of the communication line to prevent signal reflections. Ensure the Functional Earth (FE) terminal on the 7-pole block is connected directly to a low-impedance ground plane to safeguard the internal transceiver circuits from transient voltage spikes and electromagnetic interference.
Disconnect all power sources before attempting installation, wiring, or removal of the gateway. Failure to de-energize the system can result in electrical shock, equipment damage, or unexpected control system behavior.
Mount the gateway onto a standard TS 35 DIN rail, ensuring the locking mechanism snaps firmly into place.
Connect the Functional Earth (FE) terminal to the local ground system to ensure proper noise immunity.
Wire the redundant 24 V DC power supplies to the removable 7-pole terminal block, verifying correct polarity before energizing.
Connect the RJ45 Ethernet cables and the serial interface lines, securing all physical connections.
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
Germany
|