ES2152: Ethernet Analog Input/Output Modules

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 16 single-ended analog voltage inputs and 16 single-ended current inputs. The ES2152 also provides 16 analog voltage outputs. Two DB25 ports support an alternate interface of voltage I/O from microBlox® uB input or output modules. This combination of high-density analog inputs and outputs is ideal for many sensor interface applications in remote zones.

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 Inputs

Input Channel Configuration: 16 single-ended analog voltage inputs and 16 single-ended analog current inputs.
Input Ranges (select on per-channel basis): ±5V, ±10V, ±20mA, 0-20mA, or 4-20mA DC
Input Scaling (per-channel basis): Floating Point Format: IEEE-754
Input Resolution: 16-bit maximum, 0.00166% (1 part in 60,000)
Input Accuracy:
Current Input: Better than 0.1% of range
Voltage Input: Better than 0.05% of range
Input Impedance:
Voltage: 4M ohms minimum
Current: 100 ohms
Input Scan Groups and Scan Times: Eight user-enabled 4-channel scan groups. 770µS update/group (5mS for all 32 channels) with averaging, loopback, and totalization functions disabled.
Input Overvoltage Protection: Bipolar Transient Voltage Suppressers (TVS), 18V clamp level typical
Noise Rejection: CMR (50-60Hz): Better than -72dB
Sample Averaging (user-configurable): 0-500 samples. One register for all channels

Analog Field Outputs

Output Channel Configuration: 16 DC voltage outputs.
Output Ranges (per-channel basis):
±5V, ±10V DC (at ±1mA)
User-configured on a per-channel basis
Output Impedance: 1 ohm maximum
Output Resolution and Accuracy:
Resolution (±10V): 16-bit maximum, 0.00166%
Resolution (±5V): 15-bit maximum, 0.00305%
Accuracy: Better than 0.05% of range

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.

i2o® Peer-to-Peer Communication

Each port of 8 input channels can be mapped to output ports of two ES215x units. Updates based on time (100mS resolution) or percent of range change (0.1% resolution).

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, BootP
Ethernet Modbus TCP/IP Sockets/Sessions: 1-10 socket/sessions user-configurable
Ethernet Redundancy: Compatible with STP, RSTP, or any ring scheme

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
4.8W (copper ports)
5.8W (fiber-optic ports)
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)