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The Allen-Bradley 1771-SDN is an Allen-Bradley DeviceNet Scanner module. This module enables a controller to communicate a Devicenet network via the embedded Two (2) DeviceNet ports. This module supports communication rate up to 125 Kbits/s. It is compatible with Allen-Bradley chassis such as 1771-A1B through -A4B or later I/O chassis.
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| Manufacturer | Allen Bradley |
|---|---|
| Category | PLCs |
| Product Line | PLC 5 |
| Part Number | 1771-SDN |
| UPC | 612598139095 |
| Weight | 1.75 lbs (0.79 kg) |
| Module Type | DeviceNet scanner Module |
| Operating shock | 30 g |
| Operating Vibration | 2g @10–500Hz |
| Isolation Voltage | Optical Isolation between backplane and DeviceNet channel, tested to withstand 500Vac for 60 seconds 1 Megohm resistor from DeviceNet channel to chassis |
| Storage Temperature | –40 to 85 Deg. C (–40 to 185 Deg. F) |
| Operating Temperature | 0-60 Deg. Celsius (32–140 Deg. Fahrenheit) |
| Enclosure Type Rating | None (open style |
| DeviceNet power consumption | 24Vdc, 50mA per channel Class 2 |
| Backplane Current | 5Vdc, 0.8A |
| Slot Width | 1 Slot |
| Baud Rate | 125 Kbits/s |
| Node Address | 63 |
| Module Location | 1771-A1B through -A4B or later I/O chassis |
| Description | PLC DeviceNet Scanner Module |
| Communication Port Protocol | DeviceNet |
| Operation | Scan I/O and Process Messages |
| Communication w/ PLC Processor | Block-Transfer w/ PLC-5 Processor |
| Max Continuous Current Per Module | 2 Amperes |
| Max Current Per Module | 8 Amperes |
| Typical AC Signal Delay (On) | 11 (+/- 6) ms |
| Typical DC Signal Delay (On) | 3 (+/- 2) ms |
| Typical AC Signal Delay (Off) | 29 (+/- 8) ms |
| Typical DC Signal Delay (Off) | 30 (+/- 7) ms |
| Wiring Arm | 1771-WN |
The 1771-SDN is an Allen-Bradley module that is used with the 1771 Product family. This module is a DeviceNet module used enable DeviceNet communication for implementing remote I/O architecture, messaging and perform data exchange between visualization systems.
This module is Two (2) DevideNet ports with individual DeviceNet channel indicators. It is available in Three (3) module series, specifically, series A, B and C. Each module has backwards compatibility wherein a Series B module may be used as direct replacement of Series A similarly, Series C is fully compatible with Series B and A module. Specific with Series C module, when using this module as a replacement to any of the previous module series, the position of switch 5 must be changed to the OFF or 0 position via the configuration switch provided which is installed at the module’s circuit board. The module is configured using RSNetWorx.
The 1771-SDN supports Change of State (COS) wherein the module can be set to monitor data change of a parameter, which may be used in fast applications. Aside from COS, Cyclic I/O and Pass through feature is supported by this module.
The module is provided with sets of switches for setting the module’s channel and chassis address settings. With DeviceNet, up to 63 nodes which are configurable via the node address switches.
The 1771-SDN Series B and C have typical front panel designs including module status indicators, Reset button, Node address status display, DeviceNet port 1, DeviceNet port 2, Channel status 1 and Channel Status 2. DeviceNet series A has lesser front panel components.
| Revision Part # | Also known as | |
|---|---|---|
| 1771-SDN Ser A | 1771-SDN/A, Series A, Rev A | |
| 1771-SDN Ser B | 1771-SDN/B, Series B, Rev B | |
| 1771-SDN Ser C | 1771-SDN/C, Series C, Rev C | |
| Don't see your particular revision? Contact us now. | ||
Yes, the 1771-SDN includes a free 2-year DO Supply warranty. You can upgrade to a 3-year warranty at checkout for even more protection.
The module supports up to 125 kbits/s
This module has Two (2) DeviceNet ports.
This module supports 1771-A1B through -A4B or later I/O chassis.
Allen Bradley PLC 5 Communication Module, DeviceNet Communication Port Protocol, Scan I/O and Process Messages Operation, Block-Transfer w/ PLC-5 Processor