Allen-Bradley 1734-IB8S Digital Input Module

Allen-Bradley 1734-IB8S Digital Input Module

Description

Safety digital input：

• Safety devices, such as Emergency Stop Push Button, gate switches, and safety light curtains, can be connected.
• Dual-channel mode evaluates consistency between two input signals (channels), which allows use of the module for safety Category 3 and 4 and in applications that are rated up to and including Performance Level e/SIL CL3 when both channels’ Point Mode configurations are set to Safety Pulse Test.
• Single-channel mode evaluates one input signal (channel), which allows use of the module for safety Category 2 and in applications that are rated up to and including Performance Level d/SIL CL 2 when the channel's Point Mode configuration is set to Safety Pulse Test.
• You can configure a discrepancy time to control how long two channels are allowed to be discrepant before a fault is declared.
• An external wiring short circuit check is possible when inputs are wired in combination with test outputs. The module must be wired in combination with test outputs when this function is used.
• Independently adjustable on and off delays are available per channel

Test outputs (digital input modules only)：

• Separate test outputs are provided for short circuit detection of a safety input (or inputs).
• Power (24V) can be supplied to devices, such as safety sensors.
• Test outputs can be configured as standard outputs.
• Specific test outputs can be used for broken-wire detection of a muting lamp.

Technical Specifications