ES2161: Ethernet Analog Input Modules

ES2161: Ethernet Analog Input Modules Description

These EtherStax I/O units provide a rugged, high-density, and high-speed solution to interface a large quantity of analog input signals. Units accept 32 differential analog current inputs, which are ideal for many sensor interface applications in remote zones. Available in an aluminum enclosure or as an open circuit board, both packages stack vertically to maintain a very small footprint. Many other features help increase reliability, improve performance and protect from harsh environments.

Performance Specifications

Analog Field Inputs

Input Channel Configuration:
32 differential analog inputs.
16 channels on front and rear panels of unit.

DC Current Input Ranges (per-channel basis):
±20mA, 0-20mA, or 4-20mA DC (default).
User-configured on a per-channel basis.

Input Scaling (per-channel basis):
Floating Point Format: IEEE-754 32-bit configurable for 12 digits with 4 decimal places.
16-bit Signed Integer Format: All channels are represented as ±30,000.

Input Resolution and Accuracy:
Resolution: 15-bit maximum, 0.003%.
Accuracy: Better than 0.02% of range.

Input Impedance: 100 ohms.

Input Scan Groups and Scan Times:
Eight user-enabled 4-channel scan groups.
5mS (200Hz) update of all 32 channels.
8mS (125Hz) update when totalizing.
First 4-channel group updates in 770µS (1.3Khz).
Each additional 4-channel group adds 590µS to update time.

Sample Averaging: 0 to 500 samples, user-configurable.

Input Overvoltage Protection: Bipolar Transient Voltage Suppressers (TVS), 18V clamp level typical.

Noise Rejection: Common Mode (50-60Hz): Better than 72dB.

Local Alarm Output

Configuration: Failsafe or non-failsafe (software-configurable) relay trips on power or link-loss failure.

Type: SPST-NO, 1 Form A, Class I, Division II approved.

Rating:
5A @ 24V DC/250V AC, 6000 cycles resistive.
3A @ 24V DC/250V AC, 100,000 cycles general.
2A @ 24V DC/250V AC, Hazardous locations.

Maximum Switching Voltage and Power: 250V AC / 750VA, 125V DC / 90W.

Ethernet Interface

Internal Switch or Hub/Repeater: Dual-port Ethernet switch. Web-configurable as a true switch (default mode) or low-latency hub.

Network Connector [10/100 Base-T(X)Copper]:
One or two 8-pin RJ-45 connectors.
Automatic MDI/MDI-X.
100m communication distance.

Network Connector (100 Base-FX Fiber-optic):
One multi-mode duplex SC connector.
2km communication distance.
Full/half-duplex, selectable.

Protocols and Addressing:
Modbus TCP/IP or UDP/IP.
StaticIP, DHCP, BootP.
Configurable IP addresses.

Ethernet Modbus TCP/IP Sockets/Sessions: 1-10 socket/sessions programmable via web page.

Ethernet Redundancy: Compatible with STP, RSTP, proprietary schemes.

Environmental

Operating and Storage Temperature:
Operating Ranges: -40 to 70°C (-40 to 158°F).
Storage Range: -40 to 85°C (-40 to 185°F).

Power Requirements:
18-36V DC. Redundant, diode-coupled terminals.
4.2W (copper ports), 5.25W (fiber-optic ports).

Ambient Temperature Effect: Less than 25ppm/°C (0.0025%/°C).

Isolation:
I/O, power, relay and Ethernet port-to-port.
Peak: 1500V AC, ANSI/ISA-82.01-1988.
Continuous: 250V AC, 354V DC.

Enclosure and Physical

Housing Classification and Dimensions:
IP20:  8.226” x 2.444” x 7.25”, 4 lbs. packed.
PCB:  7.920” x 1.875” x 7.25”, 1.65 lbs. packed.

Safety Approvals: UL/cUL Listed.

Hazardous Locations: Class I; Div 2; A, B, C, D. Open board units: UL Recognized.

Shock and Vibration Immunity (in enclosure):
Mechanical Shock: 50g (3ms), 30g (11ms).
Random Vibration: 5g, (5-500Hz).

Additional information