8811-IO-DC | Emerson Safety I/O Module for Hazardous Areas

Product Description

The Emerson 8811-IO-DC is an 8-channel safety digital I/O module designed for use within Emerson’s PAC8000 I/O platform. This rugged and versatile module is certified for Class 1 Division 2 hazardous areas, making it ideal for applications that require stringent safety and reliability standards, such as safety instrumented systems (SIS), emergency shutdowns, and discrete control tasks.

The 8811-IO-DC features 8 configurable safety I/O channels, which can be individually set as either digital inputs or digital outputs. This flexibility allows it to be used for a wide variety of applications, from flow proportioning to emergency shutdown operations. It supports both discrete and pulsed output modes, allowing for greater control and precision in applications such as flow control without the need for external timers.

Mounted on a 4-wide carrier module, this module is designed to integrate seamlessly into the PAC8000 remote I/O hierarchy, communicating via the SafetyNet pnet backbone to redundant CPUs, such as the 8511-HI for logic resolution. This makes the 8811-IO-DC highly suitable for industrial control systems where uptime, safety, and performance are crucial.

Technical Specifications

• Model Number: 8811-IO-DC

• Product Type: 8-Channel Safety Digital I/O Module

• Platform Compatibility: Emerson PAC8000 I/O platform

• I/O Channels: 8 configurable safety I/O points

• Input Sensitivity: On-Off detection at 0.9 mA

• Output Rating: 2 A DC per point; 6 A DC per module

• Response Time: Configurable 1–8 ms

• Current Consumption: 70 mA system power; 50 mA field power

• Special Capabilities: Discrete or pulsed outputs

• Mounting: 4-wide carrier module

• Application Areas: SIS, flow control, emergency shutdowns

• Certifications: Suitable for Class 1 Div 2 hazardous areas

• Country of Origin: USA

• Weight: 500g

FAQ

Q1: What is the function of the Emerson 8811-IO-DC module?
A1: The 8811-IO-DC is a safety digital I/O module that provides 8 configurable channels for digital input or output, ideal for safety instrumented systems (SIS), flow control, and emergency shutdowns.

Q2: Can the 8811-IO-DC module be used in hazardous environments?
A2: Yes, the 8811-IO-DC is suitable for use in Class 1 Division 2 hazardous areas, making it ideal for demanding industrial applications.

Q3: What are the main features of the 8811-IO-DC module?
A3: Key features include 8 configurable I/O channels, discrete or pulsed output modes, high output rating, and safety certification for hazardous areas.

Q4: How does the 8811-IO-DC module integrate with other Emerson systems?
A4: The module integrates seamlessly into the PAC8000 I/O hierarchy, communicating with redundant CPUs like the 8511-HI for logic resolution.

Q5: What is the warranty period for the 8811-IO-DC?
A5: The 8811-IO-DC comes with a 12-month warranty, ensuring reliability and performance.