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Publication 1747-SG001D-EN-P — January 2009
DeviceNet Scanner Module
The 1747-SDN scanner module enables communication between an SLC 5/02 or
higher processor and a maximum of 63 DeviceNet-compatible I/O devices. The
scanner is the DeviceNet master, enabling data transfer between DeviceNet slave
devices using the strobe and poll message mode. The SLC system supports multiple
scanners in a single-processor chassis.
The 1747-SDN module supports:
up to 150 words of input and 150 words of output data.
all standard DeviceNet communication rates.
the exchange of status and configuration data.
DeviceNet Scanner Specifications
Cat. No.
1747-SDN
Backplane Current (mA) at 5V
500 mA
Network Power Source Requirment
90 mA @ 24V dc (Class 2)
Communication Rate
125 Kbps, 250 Kbps, 500 Kbps at 24V dc (Class 2)
Isolation Voltage
30V (continuous), Basic Insulation Type
Tested at 500V ac for 60 s, DeviceNet to backplane at 24V dc (Class 2)
DeviceNet Interface (DNI)
The DNI is a smart DeviceNet-to-DF1 interface, allowing connection of DF1-
compatible devices to a DeviceNet network where the DNI functions as a DeviceNet
slave. In addition, the DNI enables the setup of a peer-to-peer communications
network on DeviceNet with other devices using DNIs, similar to a DH-485 or DH+
network.
This capability works between controllers, between PCs and controllers, and for
program upload/download. I/O and data messages are prioritized, minimizing I/O
determinism problems typically encountered when using networks that support I/O
and messaging simultaneously.
The 1761-NET-DNI features:
high-speed local control with distributed DeviceNet I/O.
support for peer-to-peer messaging between controllers, PCs, and other devices.
programming and online monitoring over the DeviceNet network.
dial-in to any other DNI-controller combination on DeviceNet (when the DNI is
connected to a modem).
DeviceNet Interface (DNI) Specifications
Cat. No.
1761-NET-DNI
Network Power Source Requirement
200 mA @ 24V dc (Class 2)
Communication Rate
125 Kbps
250 Kbps
500 Kbps
Isolation Voltage
Tested at 500V dc for 60 s
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