
The Allen-Bradley 1756-OB8EI is a discontinued 8-point Safety Output Module within the ControlLogix family by Rockwell Automation. It was designed to safely control actuators and other devices in industrial automation applications requiring functional safety measures.
Important Note: Since the 1756-OB8EI is no longer available, it's crucial to consider alternative solutions for safety outputs in your ControlLogix system. Refer to the information below for context and potential alternatives.
Specifications:
Number of channels: 8
Output type: Sourcing bipolar/sinking DC voltage (24VDC nominal)
Output current: 0.5 Amps per channel
Operating voltage: 20.4VDC to 26.4VDC
Operating temperature: -40°C to 85°C
Mounting: DIN rail or panel mount
Safety rating: SIL 3, PLe
Features:
Independent channel control: Each channel could be individually controlled with safety features.
Safety functions: Supported various safety functions like emergency stop, muting, and guard door monitoring.
Dual-channel architecture: Enhanced safety through redundant processing and outputs.
Diagnostics: Provided detailed diagnostic information for troubleshooting and maintenance.
Applications:
Industrial safety applications requiring SIL 3/PLe compliance.
Machine control with safety-critical functions like emergency stop and guarding.
Processes involving hazardous materials or operations.
Alternatives:
Since the 1756-OB8EI is discontinued, consider these options for implementing safety outputs in your ControlLogix system:
Newer ControlLogix controllers: Many newer models have built-in safety functionalities or support dedicated safety modules.
External safety PLCs/controllers: Dedicated safety controllers can be integrated with your ControlLogix system for safety-critical functions.
Safety relays: Offer simpler solutions for specific safety functions.
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| Brand | Part Number |
|---|---|
| Allen-Bradley | 1769-L33ER/A |
| Allen-Bradley | 1769-L19ER-BB2B |
| Allen-Bradley | 1769-PA2 |
| Allen-Bradley | 1769-IQ32 |
| Allen-Bradley | 1769-L30 |
| Allen-Bradley | 1769-L36ERMS |
| Allen-Bradley | 1769-OF8V |
| Allen-Bradley | 1769-L23E-QB1B |
| Allen-Bradley | 1769-OV16 |
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| Allen-Bradley | 1769-L33ERMS |
| Allen-Bradley | 1769-BA |
| Allen-Bradley | 1769-IF16C |
| Allen-Bradley | 1769-OF4VI |
| Allen-Bradley | 1769-OF4 |
| Allen-Bradley | 1769-SM1 |
| Allen-Bradley | 1769-ECR |
| Allen-Bradley | 1769-L33ER |
| Allen-Bradley | 1769-OB16 |
| Allen-Bradley | 1769-OF2 |
| Allen-Bradley | 1769-L32E |
| Allen-Bradley | 1769-L35E |
| Allen-Bradley | 1769-IQ6XOW4 |
| Allen-Bradley | 1769-L36ERM |
| Allen-Bradley | 1769-L31 |
| Allen-Bradley | 1769-OA8 |
| Allen-Bradley | 1769-IQ32T |
| Allen-Bradley | 1769-IQ16 |
| Allen-Bradley | 1769-OB32 |
| Allen-Bradley | 1769-L35CR |
| Allen-Bradley | 1769-PB2 |
| Allen-Bradley | 1769-L30ER |
| Allen-Bradley | 1769-L20 |
| Allen-Bradley | 1769-BOOLEAN |
| Allen-Bradley | 1769-L34ER |
| Allen-Bradley | 1769-IM12 |
| Allen-Bradley | 1769-L24ER-QB1B |
| Allen-Bradley | 1769-CRL1 |
| Allen-Bradley | 1769-IF4XOF2 |
| Allen-Bradley | 1769-SM2 |
| Allen-Bradley | 1769-OV32T |
| Allen-Bradley | 1769-L31ER-NSE |
| Allen-Bradley | 1769-OW8 |
| Allen-Bradley | 1769-OF8C |
| Allen-Bradley | 1769-OF5 |
| Allen-Bradley | 1769-IR6 |
| Allen-Bradley | 1769-L23-QBFC1B |
| Allen-Bradley | 1769-L24ER-QBFC1B |
| Allen-Bradley | 1769-IF4 |
| Allen-Bradley | 1769-OW16 |
| Allen-Bradley | 1769-ASCII |
| Allen-Bradley | 1769-L30ER-NSE |
| Allen-Bradley | 1769-ECL |
| Allen-Bradley | 1769-ADN |
| Allen-Bradley | 1769-2WS |
| Allen-Bradley | 1769-CRL3 |
| Allen-Bradley | 1769-OW8I |
| Allen-Bradley | 1769-L32C |
| Allen-Bradley | 1769sc-IT6I |
| Allen-Bradley | 1769-OA16 |
| Allen-Bradley | 1769-CRR3 |
| Allen-Bradley | 1769-ARM |
| Allen-Bradley | 1769SC-IF4IH |
| Allen-Bradley | 1769-L33ERM |
| Allen-Bradley | 1769-IF8 |
| Allen-Bradley | 1769-IF4FXOF2F |
| Allen-Bradley | 1769sc-IF8u |
| Allen-Bradley | 1769-IA8I |
| Allen-Bradley | 1769-PB4 |
| Allen-Bradley | 1769-L27ERM-QBFC1B |
| Allen-Bradley | 1769-WS |
| Allen-Bradley | 1769-IQ16F |
| Allen-Bradley | 1769-RTBN18 |
| Allen-Bradley | 1769-CLL3 |
| Allen-Bradley | 1769-OB8 |
| Allen-Bradley | 1769-AENTR |
| Allen-Bradley | 1769-L23E-QBFC1B |
| Allen-Bradley | 1769-OB32T |
| Allen-Bradley | 1769-L18ER-BB1B |
| Allen-Bradley | 1769-IF16V |
| Allen-Bradley | 1769-IA16 |
| Allen-Bradley | 1769-OF4CI |
| Allen-Bradley | 1769-RTBN10 |
| Allen-Bradley | 1769-SDN |
| Allen-Bradley | 1769-OB16P |
| Allen-Bradley | 1769-L16ER-BB1B |
| Allen-Bradley | 1769-CRR1 |
| Allen-Bradley | 1769-HSC |
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