The 1784-PKTX from Allen-Bradley serves as a dedicated network interface card for personal computers. It mounts directly into a standard PCI slot. This card acts as a bridge between a host PC and several classic industrial networks, including Data Highway Plus (DH+), Remote I/O (RIO), and DH-485. As a result, it enables modern software like RSLinx to communicate with older programmable controllers. Its robust design ensures reliable performance in demanding plant floor environments.
The 1784-PKTX offers flexible connectivity through two distinct communication channels. Channel 1A functions as a combo port for both DH+ and Remote I/O networks. It uses a 3-pin Phoenix connector. Meanwhile, Channel 1C provides a dedicated DH-485 interface via a 6-pin Phoenix connector. This dual-channel design allows the card to manage different network types simultaneously. For instance, it can connect to a legacy PLC-5 via DH+ while also communicating with an SLC 5/03 on a DH-485 network.
This interface card is specifically designed to work with a range of classic Rockwell Automation processors. It fully supports PLC-5, PLC-5/250, and SLC 5/04 controllers directly. Additionally, it can connect to SLC 5/01, SLC 5/02, and SLC 5/03 processors when used with a 1785-KA5 converter. This broad compatibility makes the 1784-PKTX an invaluable tool for maintaining older systems.
Communication distances vary depending on the selected baud rate. For DH+ and RIO networks, the 1784-PKTX supports the following maximum cable lengths:
10,000 ft. (3,048 m) at 57.6 Kbit/s
5,000 ft. (1,524 m) at 115.2 Kbits/s
2,500 ft. (762 m) at 230.4 Kbits/s
For DH-485 networks, the card supports a maximum distance of 4,000 ft. (1,219 m) . Furthermore, it supports baud rates of 1200, 2400, 4800, 9600, or 19,200 bits/s. Therefore, you can choose the speed that best suits your specific application needs.
The 1784-PKTX is a compact and lightweight module. Its dimensions are 4.5 x 12.4 x 6.3 inches (115 x 317 x 160 mm). It weighs only 0.3 lbs (0.1 kg). Importantly, it requires no external power source, drawing all necessary power from the PCI bus. The board also features a conformal coating, which protects it against moisture and contaminants.
This card is built to withstand typical industrial environments. Its operating temperature range is from 0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit). Moreover, it can function in environments with 5 to 95% relative humidity, provided there is no condensation.
Durability is a key feature of the 1784-PKTX. It is rated for an operational shock of 30G. Additionally, it can endure vibrations of 2G at a frequency range of 10 to 500 Hertz. Consequently, it remains reliable even in applications with significant mechanical stress.
The card features one diagnostic/status LED for each communication channel. These LEDs provide at-a-glance visual confirmation of the network status and activity. This simplifies troubleshooting and helps reduce system downtime.
Firstly, ensure the PC is powered off before installing the 1784-PKTX. Insert the card firmly into a compatible PCI 2.3 compliant slot. Then, secure it with the mounting bracket screw. After powering on the system, the operating system should recognize the new hardware.
The 1784-PKTX typically uses the RSLinx PKTx driver for communication. This driver facilitates connections to devices on either the DH+ or DH-485 networks. For systems running an operating system other than standard Windows, a user-specific driver may be required. Therefore, consult Rockwell Automation documentation for specific OS support.
For DH+ connections, use the 10-foot (3.2-meter) CP12 cable. This cable features a 3-pin Phoenix end with a switchable termination resistor. For DH-485 networks, use the 1784-CP14 cable, which has a 6-pin Phoenix connector and also includes a switchable termination resistor. Proper termination is crucial for reliable network communication.
The maximum number of 1784-PKTX modules per system is four. This limit is specified by the onboard jumper configuration. Consequently, you must verify the jumper settings to ensure the system recognizes the correct number of installed modules.
1784-PKTX Allen-Bradley Network Interface Card (1 unit)
Quick Start Installation Guide (printed)
No software/driver CD included by default
Note: Cables (CP12, CP14) and wiring arms (1771-WN) are sold separately
Packaging excludes certificates and warranty documents
We ship all orders via trusted global carriers. Specifically, we offer FedEx, UPS, and DHL as our standard shipping options. The 1784-PKTX will be securely packed to prevent damage during transit. For urgent requirements, express shipping services are available upon request. Furthermore, all shipments include tracking information for your peace of mind.
1. Can the 1784-PKTX support both DH+ and DH-485 networks at the same time?
Yes, it can. Channel 1A handles DH+ or Remote I/O, while Channel 1C manages DH-485. Therefore, you can connect to both network types simultaneously using a single card.
2. Is the 1784-PKTX compatible with modern Windows operating systems?
The card uses the RSLinx PKTx driver. While it was designed for legacy OS, it may function on newer Windows versions with legacy driver support. However, we recommend verifying driver availability for your specific OS version.
3. What happens if I install more than four 1784-PKTX modules in one system?
The hardware limits the number of modules to four. If you install more, the system may not recognize the additional cards. Consequently, the jumper configuration must be set to reflect the actual number installed.
4. How do I determine the correct cable for my application?
For DH+ networks, choose the CP12 cable (3-pin Phoenix). For DH-485, select the CP14 cable (6-pin Phoenix). Always ensure the cable length does not exceed the maximum specified for your baud rate.
5. What are the key causes of communication errors with the 1784-PKTX?
Common issues include incorrect termination resistor settings, exceeding maximum cable lengths, or improperly configured drivers. Also, ensure the baud rate is consistent across all devices on the network.
| Brand Name | |
| Model No. | 1784-PKTX |
| Product Type | Network Interface Card |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
