MEXM-1

MEXM-1

Multiply the I/O of your Davicom's unit!




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A MEXM-1 adds...
 
24 Metering inputs
24 Status input
24 Relay outputs
 
... to any Davicom unit*
 
Daisy chain MEXM-1 units together and:
Add up to 128 extra Metering inputs to any one of your Davicom units
Add up to 192 extra Status inputs to any one of your Davicom units
Add up to 72 Relay outputs to any one of your Davicom units
 
For example, adding a single MEXM-1 to a DV-Micro yields a total of 32 metering inputs, 32 status inputs and 32 relay outputs for a very low price. These extra I/O's are directly integrated into the DV-Micro's control structure, therefore taking full advantage of the unit's powerful control, monitoring and automation functions.
 
 
 
Maximum total I/O count for different types of Davicom units by daisy-chaining MEXM-1 units together:
 
 
DV-Micro
DV-Mini
DV-208
DV-216
 
Metering
Status
Relay
Metering
Status
Relay
Metering
Status
Relay
Metering
Status
Relay
Maximum
136
200#
80
136
208#
80
136
208#
88
144
224#
104
 
Each MEXM-1 scans all its inputs and outputs at a 10Hz rate for fast detection and control.
 
 
# In Modbus RTU mode, subtract 24 Status inputs.
 
* Requires Davicom firmware version 5.52 or later. Download latest firmware now by registering as a member on davicom.com.

 

MEXM-1 SPECIFICATIONS
Metering inputs Number

24

Voltage ranges

±2.5, ±5, ±10, ±25, ±50 VDC

Impedance

1 MOhms

Protection

Clamping diode

Accuracy

1%

A/D resolution

12 bits

Connector type

Weidmuller pluggable screw terminal

Status Inputs Number

24

Logic levels

High=+2.4 to +12VDC, Low=-12 to +0.8VDC. EIA compatible

Impedance

>22kOhms

Protection

Optoisolated

Ground

Internal or External, individually selectable

Dry/wet contact

Individually selectable with pull-up resistor

Connector type

Weidmuller pluggable screw terminal

Outputs Number

24

Type

Form C Relay or Open collector, individually selectable

Rating
70VAC @ 0.4A, 30VDC @ 2A.
Open collector at 100mA
Connector type

Weidmuller pluggable screw terminal

Interface protocol Modbus

RTU or TCP modes

RTU Mode Connector

USB, RJ-9 for a daisy chain (up to 7 units)

TCP Mode Connector

RJ-45 (up to 8 units)

Power Supply

12 VDC

Typical current requirements at 12VDC Idle

150 mA

Startup

150 mA

Max (all relays energized)

480 mA

Dimensions
48.3 x 8.7 x 3.6 cm, 19" x 3.44" x 1.42"
(including Weidmuller terminals)
Weight (unit only)

1.3 kg

 RoHS / WEEE Compliant