Allen-Bradley 1715-IB16D Redundant Digital Input Module
Configured for high-availability 24 VDC discrete signal acquisition in industrial safety and fault-tolerant architectures, the Allen-Bradley 1715-IB16D (1715-IB16D Digital Input Module) provides direct physical/electrical execution. It evaluates 16 field channels across dual-redundant backplane topologies, executing real-time line diagnostics and threshold monitoring to prevent control loop interruptions in critical process platforms.
Suffix Breakdown & Model Matrix
| Base Part Number | Termination Assembly | Channel Isolation Rating | Application Topology |
|---|---|---|---|
| 1715-IB16D | 1715-TASIB16D | 0 V continuous (No channel-to-channel isolation) | Simplex / Non-Isolated Field Loops |
| 1715-IB16D | 1715-TADIB16D | 50 V continuous (Galvanic channel-to-channel isolation) | Duplex / Isolated Field Loops |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1715-IB16D |
| Brand | Allen-Bradley |
| Origin | United States |
| Weight | 0.44 lbs (0.20 kg) / 360 g |
| Dimensions | 166 x 42 x 118 mm (6.5 x 1.625 x 4.625 in.) |
| Operating Temp | -25 to +70 deg C (-13 to +158 deg F) |
| Power Consumption | 4.0 W maximum power dissipation; 260 mA backplane current |
| Nominal Voltage | 24 VDC |
| Input Voltage Range | 18 to 32 VDC |
| Number of Channels | 16 discrete input points |
| Maximum Slew Rate | 3600 V/s |
| Max Translation Rate | 1/(Application scan time + 10 ms) Hz |
| Terminal Assemblies | 1715-TASIB16D / 1715-TADIB16D |
Deterministic Network Delivery and IO Density Scaling
Operating within high-density control cabinets, the module scales system I/O density through backplane bus communication velocity and deterministic EtherNet/IP connectivity. Real-time channel states, field fault flags, and internal watchdog diagnostics are cyclically synchronized across redundant processor adapters without degrading network scan performance. Firmware flash compatibility enables seamless online module updates, maintaining continuous execution across all 16 input points during active controller handoffs.
Frequently Asked Questions
Q: What specifies channel isolation performance on the 1715-IB16D module?
A: Channel-to-channel isolation depends entirely on the installed terminal base assembly. Fitting the 1715-TASIB16D termination assembly provides basic I/O-to-backplane isolation with no individual port separation, while the 1715-TADIB16D assembly provides 50 V continuous galvanic isolation between individual field ports.
Q: Can the 1715-IB16D be replaced without shutting down field power?
A: Yes, in duplex redundant configuration, the module supports online removal and replacement under power (RIUP). Signal processing transfers to the adjacent paired module on the baseplate without dropping active field inputs or interruping control scan loops.
Field Installation Guidelines
- Mount the 1715 baseplate assembly horizontally inside an IP54 or higher industrial enclosure to meet surrounding air temperature requirements up to 70 deg C.
- Secure the baseplate to a 35 mm DIN rail or directly to a panel surface using hardware torqued to specified mechanical limits; ensure shock resilience up to 25 g (DIN rail) or 30 g (panel mount).
- Strip copper signal wiring (22 to 16 AWG / 0.33 to 1.5 mm2, rated min. 85 deg C) and tighten baseplate terminal screws to 0.5 N-m.
- Route field 24 VDC digital input cables away from high-voltage AC conductors and VFD motor output lines to reduce high-frequency transient interference.
- Ensure field loop protection includes inline 125 V, 50 mA Type T fuses where mandated by regional field wiring safety standards.
Allen-Bradley 1715-IB16D Redundant Digital Input Module
Allen-Bradley 1715-IB16D Redundant Digital Input Module
Configured for high-availability 24 VDC discrete signal acquisition in industrial safety and fault-tolerant architectures, the Allen-Bradley 1715-IB16D (1715-IB16D Digital Input Module) provides direct physical/electrical execution. It evaluates 16 field channels across dual-redundant backplane topologies, executing real-time line diagnostics and threshold monitoring to prevent control loop interruptions in critical process platforms.
Suffix Breakdown & Model Matrix
| Base Part Number | Termination Assembly | Channel Isolation Rating | Application Topology |
|---|---|---|---|
| 1715-IB16D | 1715-TASIB16D | 0 V continuous (No channel-to-channel isolation) | Simplex / Non-Isolated Field Loops |
| 1715-IB16D | 1715-TADIB16D | 50 V continuous (Galvanic channel-to-channel isolation) | Duplex / Isolated Field Loops |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1715-IB16D |
| Brand | Allen-Bradley |
| Origin | United States |
| Weight | 0.44 lbs (0.20 kg) / 360 g |
| Dimensions | 166 x 42 x 118 mm (6.5 x 1.625 x 4.625 in.) |
| Operating Temp | -25 to +70 deg C (-13 to +158 deg F) |
| Power Consumption | 4.0 W maximum power dissipation; 260 mA backplane current |
| Nominal Voltage | 24 VDC |
| Input Voltage Range | 18 to 32 VDC |
| Number of Channels | 16 discrete input points |
| Maximum Slew Rate | 3600 V/s |
| Max Translation Rate | 1/(Application scan time + 10 ms) Hz |
| Terminal Assemblies | 1715-TASIB16D / 1715-TADIB16D |
Deterministic Network Delivery and IO Density Scaling
Operating within high-density control cabinets, the module scales system I/O density through backplane bus communication velocity and deterministic EtherNet/IP connectivity. Real-time channel states, field fault flags, and internal watchdog diagnostics are cyclically synchronized across redundant processor adapters without degrading network scan performance. Firmware flash compatibility enables seamless online module updates, maintaining continuous execution across all 16 input points during active controller handoffs.
Frequently Asked Questions
Q: What specifies channel isolation performance on the 1715-IB16D module?
A: Channel-to-channel isolation depends entirely on the installed terminal base assembly. Fitting the 1715-TASIB16D termination assembly provides basic I/O-to-backplane isolation with no individual port separation, while the 1715-TADIB16D assembly provides 50 V continuous galvanic isolation between individual field ports.
Q: Can the 1715-IB16D be replaced without shutting down field power?
A: Yes, in duplex redundant configuration, the module supports online removal and replacement under power (RIUP). Signal processing transfers to the adjacent paired module on the baseplate without dropping active field inputs or interruping control scan loops.
Field Installation Guidelines
- Mount the 1715 baseplate assembly horizontally inside an IP54 or higher industrial enclosure to meet surrounding air temperature requirements up to 70 deg C.
- Secure the baseplate to a 35 mm DIN rail or directly to a panel surface using hardware torqued to specified mechanical limits; ensure shock resilience up to 25 g (DIN rail) or 30 g (panel mount).
- Strip copper signal wiring (22 to 16 AWG / 0.33 to 1.5 mm2, rated min. 85 deg C) and tighten baseplate terminal screws to 0.5 N-m.
- Route field 24 VDC digital input cables away from high-voltage AC conductors and VFD motor output lines to reduce high-frequency transient interference.
- Ensure field loop protection includes inline 125 V, 50 mA Type T fuses where mandated by regional field wiring safety standards.
