Allen-Bradley 5094-IY8

Universal Analog 8 Input FLEX 5000 Module

Allen-Bradley 5094-IY8 5094 Universal Analog 8 Input, Rockwell Automation product photo

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Allen-Bradley 5094-IY8 FLEX 5000 universal analog input module: 8 inputs for voltage, current, RTD or thermocouple, 0.05% accuracy.

Manufacturer: Allen-Bradley
Manufacturer part no.: 5094-IY8
Product family: FLEX 5000 I/O Modules (5094)
Type: Analog input module
Category: PLCs and I/O › Analogue I/O modules
Lifecycle: Active
OEM successor: Not stated
Technical datasheet: Data sheet

Technical specifications

Manufacturer: Allen-Bradley
Manufacturer part no.: 5094-IY8
Type: Analog input module
Application: Distributed I/O
Used with: 5094 FLEX 5000 I/O system
Inputs: 8 differential/single-ended
Differential / single-ended mode: Yes
Input range, voltage: ±10V 0…10V 0…5V
Input range, current: 0…20 mA 4…20 mA
Input range, thermocouple / millivolt: ±100 mV
Input type, thermocouple: B, C, D, E, J, K, L (TXK/XK), N, R, S, T
Common mode voltage (channel to channel): ±10V (current mode, 3-wire, and 4-wire RTD mode) ±2V (voltage mode)
Module conversion method: Sigma-Delta, Two 24-bit multiplexed ADC
Resolution, voltage: ±10.5V: <320 µV/count (15 bits plus sign bipolar) 0…10.5V: <160 µV/count (16 bits unipolar) 0…5V: <80 µV/count (16 bits unipolar)
Resolution, current: 0…21 mA: <0.32 µA/count (16 bits) 3.6…21 mA: <0.32 µA/count (16 bits)
Resolution, thermocouple / millivolt: <3.1 µV/cnt in ±100 mV mode
RTD excitation current: 600 µA, 3-wire mode and 4-wire mode 100 µA, 2-wire mode
RTD sensor types/temperature range: -200…+870 °C -328…+1598 °F 73…1143 °K 132…2058 °R -200…+630 °C -328…+1166 °F 73…903 °K 132…1626 °R -200…+260 °C -328…+500 °F 73…533 °K 132…960 °R
120 Ohm NI 672: -80…+320 °C -112…+608 °F 193…593 °K 348…1068 °R -60…+250 °C -76…+482 °F 213…523 °K 384…942 °R
Thermocouple type/temperature range: 21…1820 °C 68…3308 °F 293…2093 °K 528…3768 °R 0…2320 °C 32…4208 °F 273…2593 °K 492…4668 °R 0…2320 °C 32…4208 °F 273…2593 °K 492…4668 °R -270…+1000 °C -454…+1832 °F 3…1273 °K 6…2292 °R -210…+1200 °C -346…+2192 °F 63…1473 °K 114…2652 °R -270…+1372 °C -454…+2502 °F 3…1645 °K 6…2961 °R -270…+1300 °C -454…+2372 °F 3…1573 °K 6…2832 °R -50…+1768 °C -58…+3215 °F 223…2041 °K 402…3674 °R -50…+1768 °C -58…+3215 °F 223…2041 °K 402…3674 °R -270…+400 °C -454…+752 °F 3…673 °K 6…1212 °R -200…+800 °C -328…+1472 °F 73…1073 °K 132…1932 °R
Thermocouple linearization: ITS-90
CJC inputs: CJC sensors 8 thermistors embedded in 5094-RTB3T, Measurement Specialties, Inc. 10K3A1A
Local CJC sensor accuracy: ±0.5 °C
Remote CJC sensor accuracy: Based on channel accuracy
Sensor source voltage output (SSV): 24V, 200 mA max
Calibrated accuracy at 25 °C (77 °F): Voltage: 0.05% full scale, Current: 0.05% full scale, RTD: 0.05% full scale, Thermocouple/millivolt: 0.05% full scale
Accuracy drift with temperature: Voltage: 28 ppm/ºC, Current: 24 ppm/ºC, RTD: 60 ppm/ºC, Thermocouple/millivolt: 15 ppm/ºC
Scan time: 360 µs 1.4 ms
Notch filter at min RPI: 62.5 kHz
Notch filter frequency at RPI of 2.5 ms, min: 10 kHz

Show all 61 specifications

Input digital filter: 1st Order Lag, 0 ms (Default) - 32,767 ms (32.767 s)
Overvoltage protection, max: Voltage, current, RTD, and thermocouple/mV modes: ±32V DC
Overcurrent protection: Current mode: ±30 mA
Data value during overload condition: Full scale, overrange flag, Data uncertain / data bad
Open circuit detection time, nom: Voltage: + full scale, <2 s, Current: 4…20 mA range, <1 s, RTD: <10 s, Thermocouple/millivolt: + full scale, <2 s
Data format: IEEE 754 32-bit floating point
Backplane Power (BP) voltage: 15V DC
Backplane Power (BP) current, max: 75 mA
Sensor Actuator Power (SA) voltage range: 18…32V DC
Sensor Actuator Power (SA) current, max: 480 mA (include SSV 200 mA)
Power dissipation, max: 3.9 W
Thermal dissipation, max: 13.31 BTU/hr
Isolation voltage: 250V (continuous), Basic Insulation Type, System to Field, No isolation between SA power and input ports, No isolation between individual input ports
Calibration methods: Factory calibrated, User-performed
Indicators: 1 green/red module status indicator 1 green/red SA power status indicator 8 yellow/red I/O status indicators
Common mode noise rejection ratio (Differential Current mode): 130 dB @ 50/60 Hz
Normal mode noise rejection ratio: 65 dB @ 50/60 Hz, notch filter dependent.
Supported mounting orientation: Horizontal, horizontal and inverted, vertical, vertical and inverted
Wire category: 2 - shielded ports 2 - power ports
Wire size - Power: 2.5 mm2 (14 AWG) Cu multi-strand
Dimensions (HxWxD), approx: 87.0 x 94.0 x 54.0 mm (3.43 x 3.70 x 2.13 in.)
Temperature, operating: -40 °C ≤ Ta ≤ +70 °C (-40 °F ≤ Ta ≤ +158 °F)
Temperature, surrounding air, max: 70 °C (158 °F)
Temperature, nonoperating: -40…+85 °C (-40…+185 °F)
Relative humidity: 5…95% noncondensing
Vibration: 5 g @ 10…500 Hz
Shock, operating: 30 g
Emissions: IEC 61000-6-4
ESD immunity: 6 kV contact discharges 8 kV air discharges
Radiated RF immunity: 10V/m with 1 kHz sine wave 80% AM from 80…6000 MHz
EFT/B immunity: ±4 kV @ 5 kHz on power ports ±3 kV @ 5 kHz on shielded ports

Technical documents (1)

Rockwell Automation technical data 5094-TD001

Key features

Voltage, current, RTD and thermocouple input support
Two 24-bit multiplexed Sigma-Delta ADC conversion
Factory calibrated, with user-performed calibration available
Overvoltage protection to ±32V DC on all input modes
Module status, SA power and I/O status indicators

About the Allen-Bradley 5094-IY8

The 5094-IY8 is a FLEX 5000 universal analog 8 input module. Its 8 inputs are differential or single-ended, with voltage ranges of ±10V, 0…10V and 0…5V and current ranges of 0…20 mA and 4…20 mA. It takes thermocouple types B, C, D, E, J, K, L (TXK/XK), N, R, S and T, with calibrated accuracy of 0.05% full scale at 25 °C and IEEE 754 32-bit floating point data. Backplane power is 15V DC at 75 mA maximum; Sensor Actuator power is 18…32V DC.

What is the 5094-IY8 used for?

It reads mixed field signals into a FLEX 5000 I/O node: voltage, current, RTD, thermocouple and millivolt. A sensor source output gives 24V at 200 mA maximum. Every input type has open circuit detection, and overloads are reported by a full scale value, an overrange flag and a data uncertain or data bad status.

Lifecycle and successor

Active (Rockwell Automation lifecycle status, checked 24 October 2026).

Before you order

What to photograph or confirm so the right unit is quoted.

Read the catalog number 5094-IY8, the series letter and the firmware revision from the label. Send us a photo of the label and we confirm the match before we quote.

Other parts in the Allen-Bradley FLEX 5000 I/O Modules family

Listed for reference. They differ from the 5094-IY8 in rating, supply, interface or function and are not interchangeable with it unless Allen-Bradley says so. Match the part number on your unit.

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Allen-Bradley 5094-RTB35094 RTB Screw, Active Rockwell Product	Terminal base	Active	On request	On request	View
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