ES2171: Ethernet Analog Output Modules

ES2171: Ethernet Analog Output Modules Description

These EtherStax I/O units provide a rugged, high-density, and high-speed solution to interface analog output signals. Each unit provides 16 high-level analog current outputs to control various industrial devices.

Typical applications include driving indicators, display devices, and chart recorders. The outputs can also control variable speed drives, solenoid valves, motors, positioners and other actuators. Another common use is for re-transmission of analog signals to remote SCADA, PLC, or DCS systems.

EtherStax units are built and tested for high reliability and dependable performance in hostile environments. Available in an aluminum enclosure or as an open circuit board, both formats stack vertically to maintain a very small footprint.

Performance Specifications

Analog Field Outputs

Output Channel Configuration:
16 single-ended current outputs.
9-16V DC external excitation required.

Output Ranges (per-channel basis):
0-20mA or 4-20mA DC sourced.
User-configured on a per-channel basis.

Maximum Output Load at Excitation:
265 ohms @ 9V.
400 ohms @ 12V.
540 ohms @ 15V.

Output Resolution and Accuracy:
Resolution: 13-bit maximum, 0.0122%.
Accuracy: Better than 0.1% of range.

Output Response Time:
1 channel: Less than 3mS, typical.
16 channels: Less than 4mS, typical.

Local Alarm Output

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

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

Rating:
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.
User-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 with SC connector.
2km communication distance.
Full/half-duplex, selectable.

Protocols: Modbus TCP/IP, UDP/IP, i2o peer-to-peer.

Addressing: StaticIP, DHCP.

Ethernet Modbus TCP/IP Sockets/Sessions: 1-10 socket/sessions user-configurable.

Ethernet Redundancy: Compatible with STP, RSTP, or any ring scheme.

i2o Peer-to-Peer Communication

Each port of 8 output channels can serve as a target for mapped inputs from ES215x units. Updates are based on time (100mS resolution) or percent of range change (0.1% resolution).

Environmental

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

Power Requirements:
18-36V DC. Redundant, diode-coupled terminals.
3.3W (copper ports).
4.6W (fiber-optic ports), not including excitation power.
9-16V DC @ 400mA external power required for driving the outputs.

Isolation:
I/O, power, relay and Ethernet port-to-port.
Peak: 1500V AC, ANSI/ISA-82.01-1988.
Continuous: 250V AC, 354V DC (150V AC ch-ch).

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