Technical specifications, features, applications and purchasing information.
| Brand | Allen-Bradley |
| Model | 2085-IQ16 |
| Product Category | Digital Input Module |
| Manufacturer | Rockwell Automation |
| Product Family | Micro800 |
| Module Series | Bulletin 2085 Expansion I/O |
| Manufacturer Product Description | Micro800 16-Point 12/24V Sink/Source Input Module |
| Module Function | Discrete Input Expansion for Compatible PLCs |
| Number of Digital Inputs | 16 |
| Input Channel Numbers | 0–15 |
| Input Circuit Type | Sink/Source, Compatible with Appropriate PNP or NPN Sensor Wiring |
| Nominal DC Input Voltage | 12/24 VDC |
| DC Operating Voltage Range | 10–30 VDC, Class 2 |
| Supported AC Input Voltage | 21.6–26.4 VAC, 50/60 Hz, Class 2, Subject to Derating |
| Off-State Voltage, Maximum | 5 VDC |
| Off-State Current, Maximum | 1.5 mA |
| On-State Current, Minimum | 1.8 mA at 10 VDC |
| On-State Current, Nominal | 6.0 mA at 24 VDC |
| On-State Current, Maximum | 8.0 mA at 30 VDC |
| Input Impedance, Maximum | 3.9 kΩ |
| IEC Input Compatibility | Type 3 |
| Backplane Supply | 5 VDC from Compatible Controller Expansion Bus |
| Maximum Backplane Current Draw | 170 mA at 5 VDC |
| Total Power Dissipation | 4.5 W |
| Input Status Indicators | 16 Yellow LEDs |
| Input Wiring Connectors | Two 12-Pin Removable Terminal Blocks |
| Terminal Block 1 | Inputs 0–7 with COM0 Terminals |
| Terminal Block 2 | Inputs 8–15 with COM1 Terminals |
| Common Connection Groups | COM0 and COM1 |
| Isolation Voltage | 50 V Continuous, Reinforced Insulation |
| Isolation Type Test | 715 VDC for 60 Seconds, According to January 2025 Installation Manual |
| Wiring Category | Category 2 on Signal Ports |
| Solid Copper Wire Size | 0.34–2.5 mm², 22–14 AWG |
| Stranded Copper Wire Size | 0.20–2.5 mm² |
| Minimum Wire Temperature Rating | 90°C |
| Maximum Conductor Insulation Diameter | 1.2 mm |
| Wire Insulation Stripping Length | 10 mm |
| Terminal Screw Torque | 0.5–0.6 N·m |
| Compatible Controller Families | Micro850 and Micro870, Subject to Controller Expansion Limits |
| Controller Interface | Micro800 Expansion I/O Bus |
| Required Expansion Bus Terminator | 2085-ECR |
| Configuration Environment | Connected Components Workbench |
| Mounting Methods | DIN Rail or Panel Mount |
| DIN Rail Specification | 35 × 7.5 × 1 mm, EN 50022 |
| Panel Mounting Fasteners | Two M4 or #8 Screws per Module |
| Dimensions, H × W × D | 44.5 × 90 × 87 mm |
| Approximate Shipping Weight | 260 g, January 2025 Installation Instructions |
| Recommended Ventilation Clearance | 50.8 mm from Surrounding Objects |
| Operating Temperature Range | -20 to +65°C |
| Storage Temperature Range | -40 to +85°C |
| Relative Humidity | 5–95%, Noncondensing |
| Maximum Installation Altitude Without Derating | 2000 m |
| Operating Vibration | 2 g at 10–500 Hz |
| Operating Shock | 25 g |
| Non-Operating Shock | 25 g DIN Rail Mounted; 35 g Panel Mounted |
| North American Temperature Code | T4A |
| Installation Environment | Pollution Degree 2, Overvoltage Category II |
| Electrostatic Discharge Immunity | 6 kV Contact; 8 kV Air |
| Product Lifecycle Status | Active |
| UPC | 885630082288 |
| Related Conformal-Coated Model | 2085-IQ16K |
| Related 32-Point Input Module | 2085-IQ32T |
| Related 16-Point Output Module | 2085-OB16 |
The Allen-Bradley 2085-IQ16 provides sixteen discrete input channels for compatible Micro800 programmable controllers. It expands the number of field signals that can be monitored by a Micro850 or Micro870 PLC, including suitable switches, sensors and machine-status contacts.
The module supports sinking and sourcing input wiring configurations for appropriately matched field devices. With a nominal 12/24 VDC rating and 10–30 VDC operating range, it can interface with compatible industrial NPN and PNP sensor circuits when the common terminals are correctly wired.
Rockwell Automation specifies a maximum off-state voltage of 5 VDC and a nominal on-state input current of 6.0 mA at 24 VDC. Its IEC Type 3 input compatibility helps engineers assess connected sensors and switching devices during system design.
Sixteen yellow indicators provide visual status for the individual input channels. This assists technicians with checking field wiring, observing sensor switching and diagnosing machine-input conditions during commissioning and maintenance.
Two 12-pin removable terminal blocks separate inputs 0–7 and 8–15, with corresponding COM0 and COM1 common terminals. The removable connections support organized field wiring and maintenance when equipment power has been safely isolated.
The module measures 44.5 × 90 × 87 mm and supports DIN rail or panel mounting. It receives backplane power from the controller expansion system and requires the appropriate 2085-ECR end-of-bus terminator in the completed assembly.
We support online purchase of the Allen-Bradley 2085-IQ16 Digital Input Module. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.
What is the Allen-Bradley 2085-IQ16?
It is a Rockwell Automation Micro800 discrete input expansion module providing 16 channels for compatible Micro850 and Micro870 PLC systems.
How many digital input channels does the module provide?
The 2085-IQ16 provides 16 input channels numbered 0 through 15. Inputs are distributed across two removable terminal blocks.
What is the nominal input voltage?
The module is described as a 12/24 VDC sink/source input module. Its specified DC operating voltage range is 10–30 VDC using an appropriate Class 2 supply.
Can the 2085-IQ16 accept AC input signals?
Yes. The January 2025 Rockwell Automation installation instructions also specify 21.6–26.4 VAC at 50/60 Hz, Class 2. This is a limited 24 VAC input range and must not be confused with 120 VAC or 230 VAC input capability.
Does the module support both NPN and PNP sensors?
Yes. The 2085-IQ16 supports sink/source wiring arrangements suitable for compatible NPN and PNP field devices. The correct common wiring and sensor output characteristics must be verified against the manufacturer wiring diagram.
What is the nominal input current?
Rockwell Automation specifies 6.0 mA at 24 VDC. The minimum specified on-state current is 1.8 mA at 10 VDC, and the maximum specified on-state current is 8.0 mA at 30 VDC.
What are the off-state limits?
The maximum off-state voltage is 5 VDC, and the maximum off-state current is 1.5 mA. These limits are important when selecting two-wire sensors or other devices with residual leakage current.
Which PLC controllers are compatible with the 2085-IQ16?
The module belongs to the expansion I/O range for compatible Micro850 and Micro870 controllers. The controller catalog number, firmware and permitted expansion module count should be confirmed before installation.
Does the module require a separate backplane power connection?
The expansion I/O interface supplies the module's backplane power. The maximum backplane current draw is 170 mA at 5 VDC. The field input circuit must still be powered and wired according to its selected signal arrangement.
Does the 2085-IQ16 have individual input indicators?
Yes. Sixteen yellow LEDs indicate the status of the input channels, allowing technicians to observe incoming discrete signals during testing and troubleshooting.
Are the input channels isolated?
Rockwell Automation specifies reinforced insulation rated at 50 V continuous, with a 715 VDC, 60-second isolation type test in the January 2025 installation instructions. This should not be interpreted as permission to connect arbitrary high-voltage signals to the input terminals.
How are the input terminals arranged?
The module uses two 12-pin removable terminal blocks. Terminal block 1 carries inputs 0–7 and COM0 connections, while terminal block 2 carries inputs 8–15 and COM1 connections.
Does the expansion system require a bus terminator?
Yes. The last module in the compatible Micro800 expansion I/O assembly must be followed by a 2085-ECR bus terminator, according to Rockwell Automation installation instructions.
Can the 2085-IQ16 be mounted on a DIN rail?
Yes. It supports a 35 × 7.5 mm DIN rail or direct panel mounting. Rockwell Automation recommends panel mounting in environments with greater shock and vibration.
What is the difference between 2085-IQ16 and 2085-IQ16K?
Both are 16-point sink/source input modules with the same specified electrical characteristics. The 2085-IQ16K includes conformal coating, while the 2085-IQ16 is the standard version.
What is the difference between 2085-IQ16 and 2085-IQ32T?
The 2085-IQ16 provides 16 input channels and uses two removable 12-pin terminal blocks. The 2085-IQ32T provides 32 input channels and uses a different keyed 40-pin connector arrangement. Their power consumption and input characteristics also differ.
What is the operating temperature range?
The module is specified for -20 to +65°C operation and -40 to +85°C non-operating storage conditions. Input-voltage derating at elevated temperatures and suitable enclosure ventilation must be considered.
What should be checked before ordering?
Confirm the exact catalog number 2085-IQ16, 16 sink/source inputs, 10–30 VDC operating range, applicable 24 VAC compatibility, IEC Type 3 input requirements, field-device output and leakage characteristics, Micro850 or Micro870 controller compatibility, 170 mA backplane current budget, two removable terminal blocks, 2085-ECR bus terminator, mounting space and whether the conformal-coated 2085-IQ16K is required.
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| Brand | Allen-Bradley |
| Model | 2085-IQ16 |
| Product Category | Digital Input Module |
| Manufacturer | Rockwell Automation |
| Product Family | Micro800 |
| Module Series | Bulletin 2085 Expansion I/O |
| Manufacturer Product Description | Micro800 16-Point 12/24V Sink/Source Input Module |
| Module Function | Discrete Input Expansion for Compatible PLCs |
| Number of Digital Inputs | 16 |
| Input Channel Numbers | 0–15 |
| Input Circuit Type | Sink/Source, Compatible with Appropriate PNP or NPN Sensor Wiring |
| Nominal DC Input Voltage | 12/24 VDC |
| DC Operating Voltage Range | 10–30 VDC, Class 2 |
| Supported AC Input Voltage | 21.6–26.4 VAC, 50/60 Hz, Class 2, Subject to Derating |
| Off-State Voltage, Maximum | 5 VDC |
| Off-State Current, Maximum | 1.5 mA |
| On-State Current, Minimum | 1.8 mA at 10 VDC |
| On-State Current, Nominal | 6.0 mA at 24 VDC |
| On-State Current, Maximum | 8.0 mA at 30 VDC |
| Input Impedance, Maximum | 3.9 kΩ |
| IEC Input Compatibility | Type 3 |
| Backplane Supply | 5 VDC from Compatible Controller Expansion Bus |
| Maximum Backplane Current Draw | 170 mA at 5 VDC |
| Total Power Dissipation | 4.5 W |
| Input Status Indicators | 16 Yellow LEDs |
| Input Wiring Connectors | Two 12-Pin Removable Terminal Blocks |
| Terminal Block 1 | Inputs 0–7 with COM0 Terminals |
| Terminal Block 2 | Inputs 8–15 with COM1 Terminals |
| Common Connection Groups | COM0 and COM1 |
| Isolation Voltage | 50 V Continuous, Reinforced Insulation |
| Isolation Type Test | 715 VDC for 60 Seconds, According to January 2025 Installation Manual |
| Wiring Category | Category 2 on Signal Ports |
| Solid Copper Wire Size | 0.34–2.5 mm², 22–14 AWG |
| Stranded Copper Wire Size | 0.20–2.5 mm² |
| Minimum Wire Temperature Rating | 90°C |
| Maximum Conductor Insulation Diameter | 1.2 mm |
| Wire Insulation Stripping Length | 10 mm |
| Terminal Screw Torque | 0.5–0.6 N·m |
| Compatible Controller Families | Micro850 and Micro870, Subject to Controller Expansion Limits |
| Controller Interface | Micro800 Expansion I/O Bus |
| Required Expansion Bus Terminator | 2085-ECR |
| Configuration Environment | Connected Components Workbench |
| Mounting Methods | DIN Rail or Panel Mount |
| DIN Rail Specification | 35 × 7.5 × 1 mm, EN 50022 |
| Panel Mounting Fasteners | Two M4 or #8 Screws per Module |
| Dimensions, H × W × D | 44.5 × 90 × 87 mm |
| Approximate Shipping Weight | 260 g, January 2025 Installation Instructions |
| Recommended Ventilation Clearance | 50.8 mm from Surrounding Objects |
| Operating Temperature Range | -20 to +65°C |
| Storage Temperature Range | -40 to +85°C |
| Relative Humidity | 5–95%, Noncondensing |
| Maximum Installation Altitude Without Derating | 2000 m |
| Operating Vibration | 2 g at 10–500 Hz |
| Operating Shock | 25 g |
| Non-Operating Shock | 25 g DIN Rail Mounted; 35 g Panel Mounted |
| North American Temperature Code | T4A |
| Installation Environment | Pollution Degree 2, Overvoltage Category II |
| Electrostatic Discharge Immunity | 6 kV Contact; 8 kV Air |
| Product Lifecycle Status | Active |
| UPC | 885630082288 |
| Related Conformal-Coated Model | 2085-IQ16K |
| Related 32-Point Input Module | 2085-IQ32T |
| Related 16-Point Output Module | 2085-OB16 |
The Allen-Bradley 2085-IQ16 provides sixteen discrete input channels for compatible Micro800 programmable controllers. It expands the number of field signals that can be monitored by a Micro850 or Micro870 PLC, including suitable switches, sensors and machine-status contacts.
The module supports sinking and sourcing input wiring configurations for appropriately matched field devices. With a nominal 12/24 VDC rating and 10–30 VDC operating range, it can interface with compatible industrial NPN and PNP sensor circuits when the common terminals are correctly wired.
Rockwell Automation specifies a maximum off-state voltage of 5 VDC and a nominal on-state input current of 6.0 mA at 24 VDC. Its IEC Type 3 input compatibility helps engineers assess connected sensors and switching devices during system design.
Sixteen yellow indicators provide visual status for the individual input channels. This assists technicians with checking field wiring, observing sensor switching and diagnosing machine-input conditions during commissioning and maintenance.
Two 12-pin removable terminal blocks separate inputs 0–7 and 8–15, with corresponding COM0 and COM1 common terminals. The removable connections support organized field wiring and maintenance when equipment power has been safely isolated.
The module measures 44.5 × 90 × 87 mm and supports DIN rail or panel mounting. It receives backplane power from the controller expansion system and requires the appropriate 2085-ECR end-of-bus terminator in the completed assembly.
We support online purchase of the Allen-Bradley 2085-IQ16 Digital Input Module. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.
What is the Allen-Bradley 2085-IQ16?
It is a Rockwell Automation Micro800 discrete input expansion module providing 16 channels for compatible Micro850 and Micro870 PLC systems.
How many digital input channels does the module provide?
The 2085-IQ16 provides 16 input channels numbered 0 through 15. Inputs are distributed across two removable terminal blocks.
What is the nominal input voltage?
The module is described as a 12/24 VDC sink/source input module. Its specified DC operating voltage range is 10–30 VDC using an appropriate Class 2 supply.
Can the 2085-IQ16 accept AC input signals?
Yes. The January 2025 Rockwell Automation installation instructions also specify 21.6–26.4 VAC at 50/60 Hz, Class 2. This is a limited 24 VAC input range and must not be confused with 120 VAC or 230 VAC input capability.
Does the module support both NPN and PNP sensors?
Yes. The 2085-IQ16 supports sink/source wiring arrangements suitable for compatible NPN and PNP field devices. The correct common wiring and sensor output characteristics must be verified against the manufacturer wiring diagram.
What is the nominal input current?
Rockwell Automation specifies 6.0 mA at 24 VDC. The minimum specified on-state current is 1.8 mA at 10 VDC, and the maximum specified on-state current is 8.0 mA at 30 VDC.
What are the off-state limits?
The maximum off-state voltage is 5 VDC, and the maximum off-state current is 1.5 mA. These limits are important when selecting two-wire sensors or other devices with residual leakage current.
Which PLC controllers are compatible with the 2085-IQ16?
The module belongs to the expansion I/O range for compatible Micro850 and Micro870 controllers. The controller catalog number, firmware and permitted expansion module count should be confirmed before installation.
Does the module require a separate backplane power connection?
The expansion I/O interface supplies the module's backplane power. The maximum backplane current draw is 170 mA at 5 VDC. The field input circuit must still be powered and wired according to its selected signal arrangement.
Does the 2085-IQ16 have individual input indicators?
Yes. Sixteen yellow LEDs indicate the status of the input channels, allowing technicians to observe incoming discrete signals during testing and troubleshooting.
Are the input channels isolated?
Rockwell Automation specifies reinforced insulation rated at 50 V continuous, with a 715 VDC, 60-second isolation type test in the January 2025 installation instructions. This should not be interpreted as permission to connect arbitrary high-voltage signals to the input terminals.
How are the input terminals arranged?
The module uses two 12-pin removable terminal blocks. Terminal block 1 carries inputs 0–7 and COM0 connections, while terminal block 2 carries inputs 8–15 and COM1 connections.
Does the expansion system require a bus terminator?
Yes. The last module in the compatible Micro800 expansion I/O assembly must be followed by a 2085-ECR bus terminator, according to Rockwell Automation installation instructions.
Can the 2085-IQ16 be mounted on a DIN rail?
Yes. It supports a 35 × 7.5 mm DIN rail or direct panel mounting. Rockwell Automation recommends panel mounting in environments with greater shock and vibration.
What is the difference between 2085-IQ16 and 2085-IQ16K?
Both are 16-point sink/source input modules with the same specified electrical characteristics. The 2085-IQ16K includes conformal coating, while the 2085-IQ16 is the standard version.
What is the difference between 2085-IQ16 and 2085-IQ32T?
The 2085-IQ16 provides 16 input channels and uses two removable 12-pin terminal blocks. The 2085-IQ32T provides 32 input channels and uses a different keyed 40-pin connector arrangement. Their power consumption and input characteristics also differ.
What is the operating temperature range?
The module is specified for -20 to +65°C operation and -40 to +85°C non-operating storage conditions. Input-voltage derating at elevated temperatures and suitable enclosure ventilation must be considered.
What should be checked before ordering?
Confirm the exact catalog number 2085-IQ16, 16 sink/source inputs, 10–30 VDC operating range, applicable 24 VAC compatibility, IEC Type 3 input requirements, field-device output and leakage characteristics, Micro850 or Micro870 controller compatibility, 170 mA backplane current budget, two removable terminal blocks, 2085-ECR bus terminator, mounting space and whether the conformal-coated 2085-IQ16K is required.
