The Rockwell Automation/Allen-Bradley 6008-SV1R is a VMEbus I/O Scanner that enables direct communication between a VMEbus backplane and Allen-Bradley remote I/O modules without requiring a dedicated PLC processor. The module manages one remote I/O channel supporting up to 16 racks of remote I/O, with configurable scan rates at 57.6 kbps, 115.2 kbps, or 230.4 kbps. Multiple scanners can be deployed within a single VME system to build large, flexible I/O subsystems. The 6008-SV1R occupies one 6U VME slot and functions as a memory-mapped slave on the VMEbus, responding to 8-bit or 16-bit accesses in A16 or A24 address spaces. It also operates as a VME interrupter on any of the seven VMEbus interrupt lines.
– Technical Specifications
• Remote I/O capacity: 16 racks per scanner channel
• Scan rates: 57.6 kbps, 115.2 kbps, or 230.4 kbps
• VMEbus interface: P1 connector; 8-bit or 16-bit accesses in A16 or A24 address spaces
• Interrupt capability: Any of seven VMEbus interrupt lines
• Form factor: 6U VME slot (full-height)
– Key Features
• Direct remote I/O monitoring and control via VMEbus
• Continuous block-transfer operations for efficient module polling
• Support for discrete and block-transfer data handling
• Single remote I/O channel (SV1R variant; SV2R variant supports two channels)
• Backward-compatible with earlier 6008-SV scanner
• Multiple scanner deployment within one VME system
– Typical Applications
• Industrial automation systems requiring distributed I/O control
• VME-based control architectures leveraging remote Allen-Bradley modules
• Systems requiring high-speed I/O polling without dedicated processor overhead
• Multi-channel I/O management through cascaded scanner modules
– Compatibility & Integration
The 6008-SV1R integrates with Allen-Bradley I/O modules including 1771-DCM, 1771-N Series, 1771-IX (E and HR), 1771-IFE, 1771-OFE, 1791 Series, and SLC500DCM. It is interchangeable with the 6008-SV2R, differing only in channel count. The module operates within standard VMEbus architecture supporting 8-bit, 16-bit, 32-bit, and 64-bit transfers per VME64 specifications.
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