The Allen-Bradley 1769-SDN is a PLC that operates as a CompactLogix DeviceNet Scanner Communication Module. Through the 1769-SDN, communication between the CompactLogix controllers, the MicroLogix 1500 programmable controllers, and the DeviceNet devices is possible. This module also measures 118 x 87 x 35 millimeters in dimensions, including its mounting tabs which are 138 mm and weigh approximately 280 grams or 0.61 pounds. The 1769-SDN has a maximum Bus Current Draw and its maximum heat dissipation is 440 mA at 5 Volts DC (2.2 Watts) and 3.8 Watts respectively.
The 1769-SDN should not be installed anywhere that contains volatile or corrosive gas, vapors, or dust in the ambient atmosphere. The 1769-SDN has an operating temperature of 0 to 60 degrees Celsius or 32 to 140 degrees Fahrenheit and it should not be stored anywhere in a corrosive atmosphere. The maximum cable distance between this module and the connected PowerFlex 4-Class drives is 10 meters. The maximum cable length must be 500 meters at 125K baud and 100 meters at 500K baud. The 1769-SDN cannot be located more than 4 modules away from the power supply, thus, it has a Power Supply Distance Rating of 4. Its DeviceNet power requirements are N.E.C. Class 2 90 mA at 11 Volts DC, 110 mA at 25 Volts DC, and 200 mA for 1.5 milliseconds. The 1769-SDN is able to read inputs and write outputs to and from slave devices, communicate with peer devices, and load programs to a 1764-LRP-based controller across a given DeviceNet network.
FAQ for 1769-SDN
Question: How does the 1769-SDN module communicate to slave devices?
Answer: The 1769-SDN communicates with devices through poll, strobe, change of state, or cyclic I/O messages.
Question: What does 1769-SDN Error Code 91 mean? What should I do?
Answer: The 1769-SDN Error Code 91 (Bus Off) indicates the Bus off condition has been detected on the integral DeviceNet port. If you see this error check the DeviceNet connections and the Baud Rate. You should also check the system for possible sources of network interferences, such as a failed slave device.
Question: Can this module be purchased with a warranty?
Answer: Yes, the 1769-SDN comes with a free one-year warranty from DO Supply, Inc.
Question: Where can I send the 1769-SDN to be repaired?
Answer: DO Supply, Inc. offers a variety of repair services for the 1769-SDN.
Question: What is this module’s heat dissipation?
Answer: The 1769-SDN dissipates around 440 milliAmps of heat at a voltage of 5 VDC.
Question: What type of software does this module require?
Answer: The 1769-SDN uses RSLogix5000 Software.
Troubleshooting for 1769-SDN
The 1769-SDN DeviceNet scanner module in a typical configuration acts as an interface between DeviceNet devices and the programmable controller. The 1769-SDN over the DeviceNet work communicating as a master will:
Read I/O to and from slave devices
Communicate to various other peer devices
Also upload and download to programs to select Micro Logix processors through the DeviceNet network
Additional parts used for testing
Note: RsNetworx for DeviceNet is required in this procedure, the 1784-U2DN is a USB communications device, this device is not required if you are able to talk to the DeviceNet work through other means.
Be sure the correct revision is configured in the program.
Error codes 98, 99 ,E2 ,E4 ,E5 will mean you will need a new 1769-SDN card check publication for specific details.
Be sure the same node address is not being used on multiple modules.
Check to see DeviceNet communications cable is terminated in all connectors. correctly, has 24v DC applied, correct length is being used and the correct resistors are being used in the right place.
Check scanlist to be sure that your configuration is downloaded into the scanner.
All the Device Network modules should come up, double click the device, you will be communicating through, we select the 1794-ADN.
Once open select I/O summary and upload.
Now under module configuration we are given a list of compatible modules for the 1794-SDN, the 1794OA8 was automatically selected.
Download the configuration by clicking the download button.
Now open the configuration for the 1769-SDN scanner module
Go to Scanlist and upload, to move modules in and out of the scanlist us the button highlighted below, move the 1794-ADNinto the scanlist.
Note: To check I/O point check under the input and output tab
DeviceNet configuration is done
In RsLinx 5000 create a new program with the 1769-L32E
Add the 1769-ADN to the compactbus local, be sure to use the ADN module with the correct revision selected.
Download the program to the processor.
Go to controller tags, open the output tab for the ADN module, open the command registry, set command registry to 1.
Now open the “Local:1.O.Data” select Data, this will control the output for the 1794-OA8.
Changing the value from 0 to 255 and all the output will turn on.
Repair Services for 1769-SDN
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Our highly skilled technicians can repair your 1769-SDN. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.
Revisions for 1769-SDN
Please refer to the manual for more information about the 1769-SDN such as the wiring diagrams, data sheets,
firmware information and migration or obsolescence details.