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Overview

Brand Name:	General Electric
Model Number:	8811-IO-DC-01
Country of Origin:	USA
Packaging Details:	Original new Factory Sealed
Delivery Time:	Delivery time in stock
Payment Terms:	T/T

Contact for quotation

Sales Manager:	Stella
Send an email:	[email protected]
Contact in Whatsapp:	+86 18159889985

Specifications

Parameter	Specification
Model	8811-IO-DC-01
Manufacturer	GE (General Electric) / Emerson
Product Family	SafetyNet / PAC8000
Module Type	Safety Discrete Input/Output Module
Number of Channels	8 (independently configurable as inputs or outputs)
Input ON/OFF Threshold Current	0.9 mA (typical)
Input Wetting Current	1.2 mA (typical)
Minimum Pulse Width Detected	5 ms
Max Input Frequency (Pulse Counting)	30 Hz
Output Current per Channel	2 A continuous
Output Current per Module (Continuous)	6 A
Output Current per Module (Non-continuous <10s)	8 A
Input Filter Time Interval	0 to 8 s (1 ms steps)
Response Time (Input to Railbus)	5 ms (max.)
Response Time (Railbus to Output)	1 ms (max.)
Isolation (Channel to Rails)	250 VAC
System Power Supply	50 mA (typ.), 70 mA (max.)
Bussed Field Power Supply (All Inputs)	50 mA (max.)
Bussed Field Power Supply (Any Outputs)	50 mA + output load
Module Key Code	B6
Module Width	42 mm
Weight	210 g
Hazardous Area Location	Class 1, Div. 2, Groups A,B,C,D T4
Protection Technique	EEx nA nL IIC T4
Certifications	SIL 2, UL, CE, RoHS, Class I Division 2

Description

The 8811-IO-DC-01 is a safety-certified discrete input/output module from GE‘s SafetyNet series, engineered for high-integrity industrial automation and safety instrumented systems. The 8811-IO-DC-01 provides 8 independently configurable channels that can be programmed as either inputs or outputs, offering exceptional deployment flexibility. The 8811-IO-DC-01 is certified for SIL 2 safety-related applications and features non-arcing inputs and outputs for hazardous area operation. With 2 A per channel output capacity and comprehensive internal diagnostics, the 8811-IO-DC-01 delivers reliable performance in demanding industrial environments including Class 1 Division 2 locations. The 8811-IO-DC-01 mounts on PAC8000 carriers and interfaces to safety system field wiring via dedicated Field Terminals.

Competitive Advantage

Software-Configurable Channels – Each of the 8 channels can be independently configured as an input or output via software, eliminating the need for multiple fixed-function modules and reducing spare parts inventory
SIL 2 Certification without Redundancy – Achieves SIL 2 safety integrity through 1oo1D architecture and comprehensive internal diagnostics, not dependent on “proven in use” data
Hazardous Area Ready – Certified for Class 1 Division 2 and Zone 2 installations with non-arcing inputs and outputs; supports EEx nA nL IIC T4 protection technique
High Output Capacity – Delivers 2 A continuous current per channel, significantly higher than typical safety I/O modules, enabling direct actuation of larger solenoids and contactors
Live Maintenance Capability – Modules can be removed and replaced in hazardous areas without interrupting operation of other node components
Integrated Line Fault Monitoring – Detects open circuit and short circuit conditions on field wiring, reducing troubleshooting time and improving system availability
PAC8000 Ecosystem Compatibility – Fully integrates with PAC8000 controllers, Bus Interface Modules, and Field Terminals for seamless system deployment

Features

8 Configurable Channels – Each channel can be independently set as input or output, providing maximum application flexibility
SIL 2 Safety Certification – Certified for use in safety-related applications up to and including SIL 2 with 1oo1D architecture
Non-Arcing Inputs and Outputs – Designed for safe operation in hazardous areas (Class 1 Division 2 / Zone 2)
High-Current Outputs – Rated up to 2 A continuous per channel, 6 A per module continuous, 8 A for <10 seconds
Comprehensive Input Configuration – Filter time interval (0–8 s), latch enable/polarity, pulse counting (up/down/disable), earth leakage detection
Flexible Output Configuration – Supports pulse, discrete, and pattern output types with pulse width from 1 ms to 60 s
Line Fault Detection – Configurable open circuit and short circuit detection for field wiring
Diagnostic LED Indicators – Module Fault (red), Module Power (green), and Channel Status (yellow) LEDs
Live Maintenance – Hot-swappable in hazardous areas with BFP isolation
Event Logging – Time-stamped data with <200 ms resolution, stored by SafetyNet Controller
HART Compatibility – Supports HART pass-through and acquisition when combined with appropriate HART-capable analog I/O modules
Compact Form Factor – 42 mm width, 210 g weight for space-efficient cabinet installation

Functions

Discrete Input Acquisition – Reads ON/OFF states from dry contact switches, proximity detectors, or 24 VDC field devices; threshold current of 0.9 mA typical with 1.2 mA wetting current
Discrete Output Control – Drives actuators, solenoids, alarms, and indicators with up to 2 A continuous per channel; supports pulse, discrete, and pattern output modes
Pulse Counting – Counts input pulses at up to 30 Hz with configurable up-transition, down-transition, or disabled operation
Input Debouncing/Filtering – Programmable filter time from 0 to 8 seconds in 1 ms steps to reject contact bounce and electrical noise
Input Latching – Configurable latch on high or low with enable/disable option for maintaining state until acknowledged
Output Pulse Generation – Generates timed output pulses from 1 ms to 60 seconds duration for momentary actuation applications
Line Fault Detection – Monitors field wiring for open circuit and short circuit conditions; provides diagnostic feedback to the controller
Earth Leakage Detection – Per-channel configurable ON/OFF earth leakage monitoring for enhanced safety
Diagnostic Self-Test – Comprehensive internal diagnostics continuously verify module health; detects faults that would prevent safety function execution
Failsafe Mode Entry – De-energizes all outputs and stops input scanning upon loss of communications or controller指令
Controlled Shutdown – Initiates orderly failsafe transition upon internal fault detection; records diagnostic data for fault determination
Railbus Communication – Interfaces with SafetyNet Controller via internal communication bus for data exchange and configuration

FAQ

Q1: What is the difference between the 8811-IO-DC and the 8811-IO-DC-01?

A1: The 8811-IO-DC-01 is a specific variant of the 8811-IO-DC module. Both provide 8 configurable channels with SIL 2 certification. The “-01” suffix typically indicates a specific revision or configuration option. Consult the module nameplate or GE documentation for exact variant differences.

Q2: Can the 8811-IO-DC-01 be used in hazardous area installations?

A2: Yes. The 8811-IO-DC-01 is certified for Class 1 Division 2 and Zone 2 hazardous areas with EEx nA nL IIC T4 protection technique. It features non-arcing inputs and outputs for safe operation in potentially explosive atmospheres.

Q3: What is the maximum output current per channel?

A3: Each output channel can deliver up to 2 A continuous current. The module supports 6 A continuous total output current across all channels, with 8 A available for non-continuous operation (<10 seconds).

Q4: How are the channels configured as inputs or outputs?

A4: Each of the 8 channels is independently software-configurable. Configuration is performed through the SafetyNet Controller or PAC8000 engineering tool. The module key code (B6) ensures only compatible Field Terminals can be used.

Q5: What happens if the module detects an internal fault?

A5: If internal diagnostics detect a fault that would prevent the safety function, the module initiates a Controlled Shutdown. All I/O channels are deactivated (inputs not scanned; outputs de-energized) and diagnostic data is recorded. The red Fault LED flashes in Morse code “a” pattern to indicate the fault state.

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