Product Summary
The Allen-Bradley 1734-IB8 is a compact digital input module. It provides eight discrete sinking channels for distributed I/O architectures. This module operates at 24VDC and integrates seamlessly with POINT I/O communication adapters. Its robust design ensures reliable signal acquisition in demanding industrial environments.
Theme A: Product Procurement & Buyer Guide
Technical Specifications for Selection
The 1734-IB8 module requires a 1734-TB or 1734-TBS wiring base assembly. You must verify compatibility with your existing system. This module draws 75 mA from the POINTBus at 5VDC. Its power dissipation is 1.6 Watts or 5.5 BTU per hour. These values are critical for calculating your system’s total power budget. The module accepts a nominal input voltage of 24 Volts DC. Its ON-state voltage range is from 10 to 28.8VDC. The ON-state current range is from 2 to 5 mA. This ensures reliable detection of sensor signals. The hardware input filter is a fixed 0.5 ms. You can also select a user-configurable filter from 0 to 63 ms. This flexibility helps eliminate electrical noise from your signals.
Physical Dimensions and Mounting
The 1734-IB8 has an open-style enclosure type rating. This means it is not sealed against environmental contaminants. You must install it in a clean and dry location. Avoid any substances that might cause corrosion. An expert must perform the installation. This person must understand the function of all involved equipment. You can mount the module horizontally or vertically. Its dimensions are 56 x 12 x 75.5 millimeters. Its weight is approximately 31.8 grams. The module uses a keyswitch position of 1 for alignment on the base. You must apply a terminal base screw torque of 0.8 N-m or 7 pounds per inch. This ensures a secure electrical connection.
Environmental and Operational Limits
This module operates within a surrounding air temperature range. The minimum temperature is -21 degrees Celsius. The maximum temperature is 55 degrees Celsius. This limits its use in extreme heat or cold. The isolation voltage is 50 Volts continuous. The module passes a reinforced insulation test at 2500 Volts DC for 60 seconds. This protects your system from voltage spikes. The module is part of the POINT I/O series. It works with DeviceNet and ProfiBus adapters in Series C. This makes it a versatile choice for many networks.
Theme F: Deep-Dive Technical FAQ
What wiring base does this module require?
The 1734-IB8 requires either a 1734-TB or a 1734-TBS wiring base assembly. You must install the module onto this base. This base provides the physical and electrical connection to the backplane.
How do I configure the input filter time?
You can configure the input filter time via software. The module has a fixed hardware filter of 0.5 ms. You can then add a user-selectable software filter. This software filter ranges from 0 ms to 63 ms. Use a higher filter value to reject electrical noise. Use a lower value for faster signal response.
What do the status indicators show?
The module has one green/red status indicator for the logic side. It also has eight yellow input status indicators. Each yellow LED corresponds to one of the eight input channels. A steady yellow light means the input is in the ON state. The green/red LED shows the module’s operational health.
Logistics & Standard Packaging Details
- One (1) Allen-Bradley 1734-IB8 POINT I/O Input Module
- Side-in writable label for field identification
- Locking mechanism for secure module retention
- Removable terminal blocks (base assembly sold separately)
- Mounting base (1734-TB or 1734-TBS) is not included in this package
- We offer express delivery shipping via FedEx, UPS, and DHL.
