User manual

Manual WWP-IIRO-8

Chapter 1: Introduction

Features

• Wireless Digital Input / Relay Output Module Pair

• Each input on one unit is mapped to control the corresponding relay automatically in the other

• 7-mile line of site communications over integrated non-licensed FCC radio modems

• Removable omni-directional antenna without requiring access to inside of enclosure

• 900 MHz unlicensed radio modem with frequency hopping spread spectrum technology

• NEMA4 enclosure for harsh atmospheric or marine environments

• Two water-tight cable glands for power and I/O field wiring

• Inputs accept from 3 to 33V (DC or AC rms) as an “on” signal

• Relays can switch up to 60 VDC and up to 125 VAC

• Switching current capability up to 0.5 A at 125 VAC; 1 A at 24 VDC

• Auto-detection seeks for communications from each other when power applied

Each unit in the pair has the following

• 8 optically-isolated, non-polarized digital inputs

• Jumper-selectable filters per input for electrically noisy environments

• 8 SPDT electromechanical relay outputs

• Internal removable screw terminal boards for simplified wiring

Applications

• Factory Automation

• Energy Management and Conservation

• Agricultural and Irrigation Systems

• Security

• Refinery

• Marinas and Ports

• Lighting

• Traffic and Mobile

Functional Description

This product features a pair of intelligent 8-bit parallel digital I/O units that communicate with each

other without requiring a connection to a PC. When an input is turned on at one of the units, it will

cause the corresponding relay to switch on the other unit. As long as the input stays active, the

corresponding relay will remain energized on the other unit. If power is lost to either unit, the other

unit will retain the last valid commanded position for the relays. When power is restored to the

first unit, any changes that occurred to the eight inputs would then be communicated to the unit

that didn’t lose power, and the relays would follow the newly reported state.