Panels can be Data Line networked by attaching WNX-2624 Network Nodes to WRS-2224 Programmable Relay Scanners.

Utilizing the WNX-2624 Network Node

TheWRS-2224 Programmable Relay Scanner can be networked to other WRS-2224 Programmable Relay Scanners by plugging a WNX-2624 Network Node into each of the scanners. The data signal connects to the WNX-2624 Nodes. The signal can be connected in a serial bus or in a free topology configuration. Note that the serial connection permits a longer data line.

When a scanner is not networked, its group input can only be programmed to operate the relays connected to that scanner. When networked, the group input's reach extends to all of the scanners in the network.

To program a group input, the method is the same as for a non-networked scanner. Just select programming mode and press the output relay buttons on the scanner to enter which relays become part of the group. To enter relays in other scanners, press the output relay buttons on those scanners to enter (or remove) relays from this global group.

Self-Configuring Network

The term "Self-configuring" refers to the internal addressing scheme used by the network. In any network, each device has a unique address. Usually such addresses are assigned with an external device such as a PC.

For the Douglas Self-configuring Network, no external device is required. One of the WNX-2624 Network Nodes becomes responsible for configuring the system and it is selected as such by setting the unit's Network Manager switch to the ON position.

A self-configuring network can have up to 24 scanner/node combinations or 16 scanner/node combinations and 8 WNS-2308 Eight-Input Nodes. In addition, up to 20 Programmable Data Line Switch Modules can exist within a self-configuring system. A self-configuring system can control up to 576 relays and can have up to 144 unique group inputs.

Expanding a Self-Configuring Network

To create a larger system, the WNP-2150 Network Manager can be attached to the lighting control network. The WNP-2150 triples the relay capacity and permits view/edit access via an Internet browser.

The system can also be integrated into a LonWorks-based Building Automation System that supports the standard LonMark Lighting Control protocol. The WNX-2624 is a certified LonWorks device that conforms to the LonMark standards for lighting control.