Allen-Bradley 1775-SR5 Communication Adapter Modules
The 1775-SR5 is a single-slot I/O scanner communication adapter module developed by Allen-Bradley for the legacy PLC-3/10 controller architecture. Operating directly within a host PLC-3/10 chassis, this hardware module interfaces local processor logic with remote I/O chassis networks or Data Highway Plus (DH+) communication links. It manages high-speed serial data exchanges over up to four independent channels, ensuring reliable real-time scan cycles across distributed process configurations.
Communication and Network Interface
The 1775-SR5 acts as a central communication link between the PLC-3/10 processor and connected remote field devices. Supporting up to four I/O channels, it accommodates up to 4,096 I/O points in standard scanning modes. When configured to communicate over Data Highway Plus networks, one channel is dedicated to the peer-to-peer network link while the remaining three scan up to 3,072 remote I/O points.
Power Requirements and Backplane Integration
Engineered specifically for single-slot installation within PLC-3/10 chassis assemblies, the 1775-SR5 draws its operational power directly from the system backplane. The module requires a stable supply of 5 VDC at 6 A to power its onboard processor, communication transceivers, and diagnostic circuitry.
System Redundancy and Replacement
In redundant architecture setups, the 1775-SR5 supports scanner backup operations when paired with identical hardware across primary and secondary PLC-3/10 processors. Maintenance personnel replacing an older 1775-SR or 1775-S4A unit with a 1775-SR5 must clear processor memory prior to installation and perform an auto-configuration procedure for each scanner channel to ensure proper communication setup.
Technical Parameters
| Parameter | Specification |
|---|---|
| Model | 1775-SR5 |
| Brand | Allen-Bradley |
| Product Type | Communication Adapter Modules |
| Compatible System | PLC-3/10 Chassis |
| Form Factor | Single Slot |
| Backplane Power Requirements | 5 VDC @ 6 A |
| Maximum I/O Channels | 4 Channels |
| Maximum I/O Capacity | 4,096 Points (3,072 Points when DH+ enabled) |
| Shipping Weight | 13.45 lbs |
Frequently Asked Questions
Q: What chassis architecture is compatible with the Allen-Bradley 1775-SR5 module? A: The 1775-SR5 is engineered specifically for installation in a single slot of an Allen-Bradley PLC-3/10 chassis.
Q: What are the backplane power supply requirements for this scanner module? A: The module requires 5 VDC at 6 A supplied directly through the PLC-3/10 backplane connection.
Q: How many I/O points can the 1775-SR5 manage when Data Highway Plus is activated? A: When one channel is allocated for Data Highway Plus communication, the remaining three channels can scan up to 3,072 remote I/O points.
Allen-Bradley 1775-SR5 Communication Adapter Modules
Allen-Bradley 1775-SR5 Communication Adapter Modules
The 1775-SR5 is a single-slot I/O scanner communication adapter module developed by Allen-Bradley for the legacy PLC-3/10 controller architecture. Operating directly within a host PLC-3/10 chassis, this hardware module interfaces local processor logic with remote I/O chassis networks or Data Highway Plus (DH+) communication links. It manages high-speed serial data exchanges over up to four independent channels, ensuring reliable real-time scan cycles across distributed process configurations.
Communication and Network Interface
The 1775-SR5 acts as a central communication link between the PLC-3/10 processor and connected remote field devices. Supporting up to four I/O channels, it accommodates up to 4,096 I/O points in standard scanning modes. When configured to communicate over Data Highway Plus networks, one channel is dedicated to the peer-to-peer network link while the remaining three scan up to 3,072 remote I/O points.
Power Requirements and Backplane Integration
Engineered specifically for single-slot installation within PLC-3/10 chassis assemblies, the 1775-SR5 draws its operational power directly from the system backplane. The module requires a stable supply of 5 VDC at 6 A to power its onboard processor, communication transceivers, and diagnostic circuitry.
System Redundancy and Replacement
In redundant architecture setups, the 1775-SR5 supports scanner backup operations when paired with identical hardware across primary and secondary PLC-3/10 processors. Maintenance personnel replacing an older 1775-SR or 1775-S4A unit with a 1775-SR5 must clear processor memory prior to installation and perform an auto-configuration procedure for each scanner channel to ensure proper communication setup.
Technical Parameters
| Parameter | Specification |
|---|---|
| Model | 1775-SR5 |
| Brand | Allen-Bradley |
| Product Type | Communication Adapter Modules |
| Compatible System | PLC-3/10 Chassis |
| Form Factor | Single Slot |
| Backplane Power Requirements | 5 VDC @ 6 A |
| Maximum I/O Channels | 4 Channels |
| Maximum I/O Capacity | 4,096 Points (3,072 Points when DH+ enabled) |
| Shipping Weight | 13.45 lbs |
Frequently Asked Questions
Q: What chassis architecture is compatible with the Allen-Bradley 1775-SR5 module? A: The 1775-SR5 is engineered specifically for installation in a single slot of an Allen-Bradley PLC-3/10 chassis.
Q: What are the backplane power supply requirements for this scanner module? A: The module requires 5 VDC at 6 A supplied directly through the PLC-3/10 backplane connection.
Q: How many I/O points can the 1775-SR5 manage when Data Highway Plus is activated? A: When one channel is allocated for Data Highway Plus communication, the remaining three channels can scan up to 3,072 remote I/O points.
