Ethernet IO

The Smart Input Sensor is an Ethernet device with 8 integrated digital inputs. The device allows for web based monitoring of the inputs and may be integrated into distributed control and network management systems to allow those systems to alarm and monitor field devices. Each of the Inputs can be individually configured to send customized emails and notifications when an event is recorded. The device supports a wide variety of industrial protocols over Ethernet. Integration options are: SNMP Polling and Traps, Modbus TCP featuring addressable registers, and DNPv3 TCP for integration with utility and other automation control systems.

Contact Closure Over Ethernet

The Smart Input Sensor may be paired with a Smart Relay Output. When using RLH’s System Link feature, the two devices become linked establishing a tunnel over an Ethernet network and will transport a digital outputs being received by the Input Sensor through the Ethernet tunnel to the linked Relay Output device. The System Link feature can be set up via: One to One, Many to One, and One to Many allowing for event distribution and consolidation as needed.

View the matching Smart Relay Output

SM-INPUT-48-2
SM-INPUT-24-2
SM-INPUT-DR-2
SM-OUTPUT-NO-2
SM-OUTPUT-NC-2
SM-OUTPUT-OC-2

• Rugged Design – Operating temperature, -40°C ~ 70°C
• Intuitive embedded web interface for configuration
• 8 Inputs for multiple alarm monitoring
• Supports SNMP 1, 2c, 3, & SNMP Traps 1, 2c
• Supports DNP 3.0 over Ethernet
• Supports Modbus over Ethernet
• Use the System Link feature to Pair with a Relay Output unit for alarm transportation over Ethernet
• Supports a One-to-Many Feature, Send alarms from one location to multiple Relay Output devices
• Email alarms for the Inputs are customizable to your application
• Advanced SMTP integration allowing for SSL and TLS based authentication
• Event log with time stamps
• Each digital input is optically isolated
• System power ranges available: 24-48VDC or 125VDC
• 10/100 Fast Ethernet Port
• Limited Lifetime Warranty
• Made in USA

Powering Voltage:
Standard Model – 24-48VDC
-A Model – 125VDC
-B Model – 12VDC

Power Consumption:
6 Watts (Maximum)

Protocols Supported:
DNP 3.0 TCP, Modbus TCP, SNMP Polling 1,2c,3, SNMP Traps 1, 2c, SMTP w/ TLS Authentication

System Link Response Time:
Typical 8ms, Maximum 45ms
One-To-Many (UDP) < 15ms Many-To-One (TCP) < 250ms

*Specifications listed are based on direct connections. Network overhead should be considered when calculating overall system response times.

Data Interface:
Ethernet (RJ-45)

Data Rate:
Fast Ethernet 10/100Mbps

Inputs 1~8:
Polarity Insensitive
Optical isolation 3.5kV
SM-INPUT-DR-2 Dry: Sourcing Input (100 ohms maximum loop resistance)
SM-INPUT-24-2 Wet: Sinking Input (8~27VDC / 5mA)
SM-INPUT-48-2 Wet: Sinking Input (20~52VDC / 5mA)

LED:
POWER – DC Power OK
SYS – CPU OK
LNK – System Link ON/OFF Status
Inputs – ON/OFF Status

System Alarm Output:
NO/NC Relay

Surge Protection:
Varistors & Automatic resettable fuses
DC Input Isolation 1.5kV
Voltage Reversal Protection

Construction:
Powder coated steel and aluminum alloy
Physical Dimensions H 5.0” x W 2.0” x D 3.9” (127mm x 51mm x 100mm)

Mounting Style:
Standard DIN rail (T-35)

Operating:
Temperature -40°F to +158°F (-40°C to +70°C)
Humidity 95%
MTBF 175,000 Hrs. (Circuit Board level)