Specifications

35
SLC 500 Programmable Controllers and I/O Modules
1747-SCNR ControlNet Scanner
The 1747-SCNR scanner module provides a scheduled ControlNet network connection for SLC 5/03 and
higher processors. With scheduled messaging, the SLC processor can control I/O events in real-time on
the ControlNet network.
1747-ACN15 and -ACNR15 ControlNet Adapters
The 1747-ACN15 and 1747-ACNR15 adapter modules provide the capability for up to three 1746 chassis
(30 slots) of discrete, analog and specialty I/O modules to produce/consume scheduled I/O to a
ControlNet network. These modules have been designed to provide both scheduled and unscheduled
ControlNet network connections for 1746 I/O.
Features
• Optional media redundancy (dual BNC connectors) available with ACNR
• Compatible with all 1746 discrete, analog, and specialty modules except those requiring G file configuration, e.g. 1747-SN
• Supports connections to individual modules or chassis connections to a group of discrete modules
• Software upgrade via Control Flash
DeviceNet Network
The DeviceNet network is an open, low-level communication link that provides connections between simple industrial devices (such
as sensors and actuators) and high-level devices (such as controllers). Based on standard Controller Area Network (CAN) technology,
this open network offers inter-operability between like devices from multiple vendors. A DeviceNet network reduces installation
costs, start-up/commissioning time, plus system and machine down time.
The DeviceNet network provides:
• Inter-operability: simple devices from multiple vendors that meet DeviceNet standards are interchangeable
• Common network: an open network provides common, end-user solutions, and reduces the need
to support a wide variety of device networks
• Lower maintenance costs: you can remove and replace devices without disrupting other devices
• Cost-effective wiring: one wire supplies communications and 24V power networked device installation
is more cost-effective than traditional I/O wiring