- Two independently addressed DeviceNet scanner channels
- Mapped I/O, explicit messaging, cyclic, and change-of-state data handling
- Series-mode support for maintaining earlier 1771-SDN installations
1771-SDN is an Allen-Bradley DeviceNet scanner module designed for supported 1771 chassis and block-transfer-capable PLC processors.
It links PLC data tables to two DeviceNet channels and provides channel status, node/error displays, scan-list control, and explicit-message services.
Before installation or replacement, verify hardware Series, compatibility mode, slot and addressing rules, network settings, EDS files, scan lists, and processor logic.
Availability, condition, price, and shipping time for 1771-SDN are confirmed during quotation.
Allen-Bradley 1771-SDN DeviceNet Scanner Module Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Fits 1771-A1B through 1771-A4B or later supported I/O chassis
- Works with PLC-2, PLC-3, or PLC-5 processors that support block transfers
- Does not support complementary-I/O chassis or a rack behind a 1771-SN subscanner
- Separate switchbanks set channel data rate and node address
- Default settings are node 63 and 125 kbit/s on each channel
- Series C compatibility mode is selected before replacing an earlier scanner
- Module status reports power and internal operating condition
- Each channel has independent network status and numeric node/error display
- Device-active and failure tables support PLC-side network diagnosis
- DeviceNet connection of 1734 POINT I/O stations to PLC-5 control
- DeviceNet scanning of 1794 FLEX I/O adapters and field devices
- DeviceNet integration of drives, operator devices, and discrete sensors into 1771 systems