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Description
Technical Specifications for 1771-SDN
| Manufacturer | Rockwell Automation |
| Baud Rate | 125 Kbits/s |
| Enclosure Type Rating | None (open style |
| Operating Temperature | 0-60 Deg. Celsius (32–140 Deg. Fahrenheit) |
| Storage Temperature | –40 to 85 Deg. C (–40 to 185 Deg. F) |
| Isolation Voltage | Optical Isolation between backplane and DeviceNet channel, tested to withstand 500Vac for 60 seconds 1 Megohm resistor from DeviceNet channel to chassis |
| Operating Vibration | 2g @10–500Hz |
| Operating shock | 30 g |
| Brand | Allen-Bradley |
| DeviceNet power consumption | 24Vdc, 50mA per channel Class 2 |
| Backplane Current | 5Vdc, 0.8A |
| Slot Width | 1 Slot |
| Part Number/Catalog No. | 1771-SDN |
| Module Type | DeviceNet scanner Module |
| 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 |
| Wiring Arm | 1771-WN |
| Dimensions | 4.5 x 12.4 x 6.3 in (115 x 317 x 160 mm) |
| UPC | 10612598003072 |
About 1771-SDN
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.
