User Manual

9
The Allen-Bradley 1747-SDN and 1771-SDN DeviceNet Scanner
Modules are master devices on the DeviceNet network. The
RediSTATION supports the Master/Slave Connection Set for
master/slave communications on the DeviceNet network.
To communicate with a RediSTATION, the DeviceNet Scanner
Module must be configured with the RediSTATION:
• node address
• input bytes (1)
• output bytes (1)
The DeviceNet Scanner Module:
• connects to the RediSTATION slave device
• performs the appropriate connection configuration
• polls the RediSTATION for inputs and outputs
Response Times
The RediSTATION responds to a DeviceNet Scanner poll within 1
millisecond.
The switch inputs are debounced for 50 milliseconds. When a
change of state is detected, the inputs are not read for another 50
milliseconds.
DeviceNet Operations