Moxa ioLogik R2140 I/O Server Specification Guide

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Industrial I/O
RS-485 remote I/O with 8 analog inputs and 2 analog outputs 
ioLogik R2140
8 analog input channels for millivolts (mV), voltage, and current 
 
signal with wire-off detection (at 4 to 20 mA)
2-channel analog outputs for voltage, current actuator control
 
16-bit resolution analog inputs, 12-bit resolution analog output
 
Easy-to-use, quick programming library for VB, VC++, BCB, .NET
 
NIST-Traceability calibration for analog I/O channels
 
Firmware upgradable over RS-485
 
Specifications
Serial Communication
Interface: RS-485-2w: Data+, Data-, GND
Serial Line Protection: 15 KV ESD for all signals
Serial Communication Parameters
Parity: None
Data Bits: 8
Stop Bits: 1
Flow Control: None
Baudrate: 1200 to 115200 bps
Protocol: Modbus/RTU
Analog Input
Channels: 8, sink type, 45 VDC, 200 mA 
Resolution: 16 bits
I/O Mode: Voltage / Current
Input Range: ±150 mV, ±500 mV, ±5 V, ±10 V, 0 to 20 mA, 4 to 20 
mA
Data Format: 16-bit integer
Accuracy: 
±0.1% FSR @ 25°C 
±0.3% FSR @ -10 and 60°C
Sampling Rate (all channels): 
10 samples/sec (voltage) 
6 samples/sec (current)
Built-in Resistor for Current Input: 106 ohms
CMR @ 50/60 Hz: 95 dB min.
Isolation: 3K VDC or 2K Vrms
Analog Output
Channels: 2
Resolution: 12 bits
Output Range: 0 to 10 V, 4 to 20 mA
Drive Voltage: 15 VDC for current output
Accuracy: 
±0.1% FSR @ 25°C, 
±0.3% FSR @ -10 and 60°C
Zero Drift: ±9 μV/°C
Span Drift: ±25 ppm/°C
Load Resistor: Less than 250 ohms
Power Requirements
Power Input: 24 VDC nominal, 12 to 48 VDC
Power Consumption: 282 mA typical @ 24 VDC
Physical Characteristics 
Wiring: I/O cable max. 14AWG
Dimensions: 115 x 79 x 45.63 mm (4.53 x 3.11 x 1.8 in)
Weight: 200 g
Environmental Limits
Operating Temperature: -10 to 60°C (14 to 140°F)
Storage Temperature: -40 to 85°C (-40 to 185°F)
Ambient Relative Humidity: 5 to 95% (non-condensing)
Regulatory Approvals 
EMI: FCC Part 15, CISPR (EN55022) class A
EMS: IEC 61000-4, IEC 61000-6
Shock: IEC 60068-2-27
Freefall: IEC 60068-2-32
Vibration: IEC 60068-2-6
Warranty
Warranty Period: 2 years
Details: See www.moxa.com/warranty