Start Up - Allen-Bradley 1747-SN User Manual

3–6 Installation and Wiring

Start Up

Publication 1747 6.6 - July 1996
The following steps will assist you in the start up of your RIO
system.
1. Apply power to your SLC processor. If you powered down with
the SLC processor in Program, Test, or Fault mode, you will have
to place your processor in Run mode.
When power is applied to your scanner it requires about three
seconds to complete its power up diagnostics. During this time,
the FAULT and COMM LEDs cycle on and off. After the
diagnostics are complete and the SLC processor is in the Run
mode, the scanner's LEDs are in the following states:
The FAULT LED is off.
The COMM LED is green.
Important:
The above states are true only if the scanner is
configured properly and all RIO link devices are
communicating.
2. Make sure you have configured your SLC processor and
downloaded an application program. (Refer to chapter 4.)
3. Make sure power is applied to all devices on the RIO link.