ECOMM WC21-16DI

The WC21-16DI Wireless digital input module comes as a 2 Piece set consisting of a
WC21 FFD Mesh Node and a 16-channel ModBus RTU Slave input module.

The WC21-16DI Wireless digital input module comes as a 2 Piece set consisting of a
WC21 FFD Mesh Node and a 16-channel ModBus RTU Slave input module along with a
4 Conductor Comm/Power cable 40cm long which connects the two devices. Inputs
supported are Contact Closure and Pulse. The inputs are isolated from the logic by bidirectional
opto-couplers. The inputs are divided into 2 isolated groups of 8 inputs each.
Each channel can be used as either a contact closure detection or as a 32-bit pulse
counter. Both register types for each channel are available simultaneously on the
wireless gateway.

RFFull Function Device
RF Classification 802.15.4 ISM Band DeviceMesh FFD Capacity 75 FFD's
Frequency 2.4 GHz 16 ChannelsLine of Sight Range 425 metres
Network ArchitectureStar Mesh PAN Coordinator
Device Classification Full Function Device
Transmit Sensitivity 12 dBm
Receive Sensitivity -94 dBm
Module HardwarePhysical
WC21 FFD Controller 12-24 VDCDimensions 16DI module 109 x 96 x 22mm incl. connectors
16DI Module 12-24 VDCDimensions WC21 module 75 x 96 x 34mm incl mounting lugs
Mounting - 16DI module DIN railWeight - complete 200g
Mounting - WC21 screw fixing
Maximum Pulse Frequency 25 HzCertifications FCC / UL / UR / EC on Components
Minimum Pulse Width 20 msOperating temp -28C to 62.5C
Pulse circuit voltage 12-24VDC required through circuit for pulse detection - can common off power supply to moduleStorage temp -40C to 80C
Operating humidity 5% to 95% (non condensing)
.Storage humidity 5% to 95% (non condensing)
I/O Module Detail
WC21 Polling Rate 350 msec
Minimum Update Interval 10 Seconds
Maximum Update Interval 3,600 Seconds
WC21 On Board I/O Not Functional when 16DI connected
Input Resolution 32 bit
Detailed Specifications

Category Model number Item Description
FFD – I/O WC21-16DI Star Mesh Network Full Function Device 16 pulse/contact inputs

These are examples of  industries and applications in which this product has been used:

Energy Metering


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