Configured for safety analog signal acquisition and analog output execution in GuardPLC safety control systems, the Allen-Bradley 1753-IF8XOF4 (1753-IF8XOF4 Analog Combination Module) provides direct I/O processing through GuardPLC Ethernet communication.

Model Configuration Overview

The 1753-IF8XOF4 is a GuardPLC distributed safety I/O module combining safety analog inputs and standard analog outputs. The module provides 8 analog input channels and 4 analog output channels with Ethernet communication through dual RJ-45 interfaces.

The module is designed for integration with GuardPLC controllers where analog field signals require safety-related processing and controlled output transmission.

Hardware Specifications

GuardPLC Safety I/O Processing

The 1753-IF8XOF4 integrates analog signal handling within GuardPLC safety architectures. The module receives field analog inputs, processes safety-related signals, and transfers data to the GuardPLC controller through Ethernet communication.

The module supports IEC 61508 compliant safety functions with a Safe Failure Fraction (SFF) value of 99.776%. Safety calculations such as PFD and PFH depend on the configured safety system architecture and verification parameters.

The module requires connection to PELV or SELV 24 VDC power sources to maintain the specified electrical separation requirements.

EtherNet Communication and Safety Architecture

The 1753-IF8XOF4 communicates with GuardPLC controllers through GuardPLC Ethernet interfaces. Dual RJ-45 10/100BaseT ports provide network connection capability for distributed safety I/O arrangements.

The GuardPLC architecture uses deterministic communication handling between controller logic and distributed I/O devices. The module is configured through compatible GuardPLC engineering tools according to system safety requirements.

Ordering Information

The supplied configuration includes:

• 1 x Allen-Bradley 1753-IF8XOF4 GuardPLC Analog Combination Module
• 1 x Integrated terminal interface
• 1 x Product identification label

Additional system components required:

• GuardPLC controller
• 24 VDC PELV or SELV power supply
• Ethernet communication cables
• GuardPLC configuration software

Field Installation Guidelines

Mechanical Installation

• Install the module in an enclosure suitable for IP20 open-type equipment requirements.
• Prevent direct access to energized components after installation.
• Mount the device in an environment meeting Pollution Degree 2 conditions.

Electrical Connection

• Connect the module only to 24 VDC PELV or SELV power sources.
• Verify power polarity before energizing the module.
• Follow site grounding practices for signal wiring and Ethernet installation.

Analog Signal Wiring

• Separate analog signal cables from high-current switching circuits.
• Use appropriate shielding methods for low-level analog signals.
• Confirm field transmitter signal compatibility before connection.

Frequently Asked Questions

• What type of module is the 1753-IF8XOF4?

  The module is a GuardPLC analog combination I/O module with 8 safety analog inputs and 4 standard analog outputs.

• Which controller platform is compatible with this module?

  The module is designed for use with Allen-Bradley GuardPLC safety controllers through GuardPLC Ethernet communication.

• What power supply voltage is required?

  The module requires a 24 VDC PELV or SELV power supply connection for operation and electrical safety separation.

• Does the module provide circuit isolation?

  No. The module specification states there is no isolation between circuits.

• What Ethernet interfaces are available?

  The module provides two RJ-45 10/100BaseT Ethernet interfaces for GuardPLC communication.

• What is the analog input resolution?

  The analog input channels provide 12-bit signal resolution for field measurement processing.

• What enclosure protection is required?

  The IP20 open-type module must be installed inside an enclosure that protects against live parts and environmental contamination.

• What is the response time of the module?

  The specified response time is 20 ms or greater depending on configured operating conditions.