AB 1784-PKTx Network Interface Card

AB 1784-PKTx Network Interface Card

1784-PKTx Network Card Introduction

Models and Functions: 1784-PKTx series includes two types of PCI network cards, 1784-PKTX and 1784-PKTXD. 1784-PKTX has 1 channel, which can be used in DH + or DH-485 network; 1784-PKTXD has 2 channels, of which channel 1 supports DH + and/or DH-485, and both of them are equipped with remote I/O scanning function, and can be connected to PC and PLC controller to achieve programming and data acquisition. The 1784-PKTXD has 2 channels, of which channel 1 supports DH + and/or DH-485, both have remote I/O scanning function, and can be connected to PC, PLC controller and SLC processor for programming and data acquisition.

Compatibility: PCI-compatible PCs are required, and different operating systems have different support for the card; for Windows 98 or higher, the DH+ and DH-485 drivers are included in RSLinx; other operating systems need to write their own drivers using the 1784-DP4; Remote I/O, regardless of the system, need to write drivers using the 6001-RIO - RIO Tool Kit. Remote I/O systems of any kind require the 6001-RIO - RIO Tool Kit.

Hardware Configuration

IRQ Assignment: The PCI BIOS automatically assigns IRQs to the PKTx cards, each time a card is added or removed and the computer is restarted, the BIOS may assign a different IRQ, which needs to be checked each time the system is booted, and which is verified by most application software, such as the Plug and Play driver for RSLinx.

Base Memory Address: Although IRQs and base memory addresses are assigned automatically, there is a base memory address jumper (JP2) on the PKTx card that defaults to a 32-bit location. This may need to be set on non-Windows 95 or later systems. This jumper limits the base memory address to two ranges, depending on the operating system the PC is running.

Multi-Card Setup: Up to four PKTx cards can be installed in the system. The card is uniquely identified by setting the JP3 jumper, which has CID0 and CID1, with different combinations corresponding to different Card IDs, as shown in the table below:

| 0 | CID0 and CID1 covered | 1 | CID0 covered | 1 | CID0 covered | 1 | CID1 covered

| 1 | CID0 open and CID1 covered | | 2 | CID0 open and CID1 covered

| 2 | CID0 covered, CID1 open | 3 | CID0 covered, CID1 open | 4 | CID1 covered

| 3 | CID0 and CID1 open |

Installation Steps

Pre-installation Preparation: Before installing the PKTx card, make sure you have set the appropriate jumpers, avoid static damage, touching a grounded object to discharge, wearing a grounded wrist strap, etc.

Insert the card: Locate the PCI bus slot on your computer and insert the PKTx card according to the computer manufacturer's instructions.

Install the driver: Start the computer, Windows will detect the PKTx card and start the ‘New Hardware Wizard’, insert the RSLinx CD, select Search for Driver, specify the location of the driver (different paths for different systems), and complete the driver installation. If the installation fails, please contact Rockwell Technical support.

Network Connection

Connection Network Type: The PKTx card can connect to DH+, DH-485, and Remote I/O networks. Be sure to use the correct cable and terminating resistor before connecting.

DH+ Network Connection: Single or multiple devices can be connected with the 1784-CP12 cable for the original PLC-5 controller or the 1784-CP13 cable for the Enhanced model. Terminating resistors are required at both ends of the network, either 82Ω or 150Ω depending on the device's communication rate.

DH-485 Network Connection: Multiple SLC controllers or a single SLC processor can be connected. 1747-AIC Link Coupler is required to connect multiple SLC controllers, and 1784-CP14 cable is required to connect a single SLC processor, and terminating resistors are also required at both ends of the network.

Remote I/O connection: Build a custom cable using Allen-Bradley 1770-CD or approved cable, select 82Ω or 150Ω terminating resistor depending on the remote I/O link.

Interpreting Status LEDs

DH + Status LEDs: Off to indicate channel is not online; blinking green to indicate it is the only node on the network; always green to indicate it is online and receiving tokens; blinking red to indicate a duplicate node; always red to indicate a self-test failure.

DH-485 Status LED: similar to DH + Status LED, blinking red indicates parity error.

Remote I/O Scan Mode LED: off indicates channel is not online; blinking green indicates at least one but not all adapters in the scan list are not responding; constant green indicates all adapters are responding; blinking red indicates all adapters are not responding; constant red indicates self-test failure.

Specification parameters: covering the maximum line length, communication rate, electrical characteristics, environmental adaptability and other parameters, such as the DH + at different rates of the maximum line length is different (57.6K bit/s at 10,000 ft., 115.2K bits/s at 5,000 ft., 230.4K bits/s at 2,500 ft.), with a variety of electrical (5,000 ft. at 115.2K bits/s, 2,500 ft. at 230.4K bits/s), a wide range of electrical compatibility specifications, and operating temperatures from 0 - 60°C.

Key Issues

How do I ensure electrical compatibility in different network environments when using 1784-PKTx series cards?

The device is suitable for industrial environments with pollution class 2, overvoltage category II applications, and does not require derating up to 2000 metres above sea level. It is a Group 1, Class A industrial device and may have electromagnetic compatibility issues in other environments. It should be installed in an enclosure of suitable design, as required, with the appropriate level of protection in accordance with relevant standards (e.g., NEMA Standards publication 250 and IEC publication 60529), and with reference to Allen-Bradley publication 1770. -4.1 for wiring and grounding to ensure electrical compatibility.

If I have problems installing the driver for the 1784-PKTx card, what is the best way to resolve the problem?

If installation of the driver fails, call Rockwell Technical support at 440-646-5800 (subject to a proper support contract).

What are the main differences between the 1784-PKTX and the 1784-PKTXD in terms of functionality and use?

Functionally, the 1784-PKTX has 1 channel for DH+ or DH-485 networks, while the 1784-PKTXD has 2 channels, with channel 1 supporting DH+ and/or DH-485. Usage-wise, the 1784-PKTXD has 2 channels, which gives it more flexibility in connecting to multiple devices or different networks, and allows for simultaneous connection of different types of network devices, while the 1784-PKTX has 2 channels for single-channel network connections. PKTX is simpler and more straightforward in single-channel network connection scenarios.