Rockwell Automation GMLC Reference Manual - Manual (Page 403)

Publication GMLC-5.2 - November 1999
366 RIO Blocks
Show RIO Status
Use the Show RIO Status block to check the RIO interface and send the
resulting status value to the operator interface serial port.
The Show RIO Status block resides on the RIO Toolbar.
The Show RIO Status block requires no parameters, and has no dialog
box.
If you enabled RIO Interface in the General and RIO pages of the
Configure Control Options dialog box, you can use the Show RIO Status
block to check the RIO interface and send the its status value to the
operator interface serial port. This block requires no parameters and it
always displays a check mark by the block’s upper left corner to indicate
that it is complete.
See the Using the RIO Adapter Option chapter in this manual for
information on configuring RIO operation.
RIO status appears as a value according to the following table. You can
also determine the RIO status by the color of the LED.
See the section On RIO in this manual for more information on the
specific status conditions.
RIO Status Values
Value Description LED Color
4 Non-Recoverable Fault Red
3 Recoverable Error (Failing) Blinking Red
2 Standby Blinking Green
1 Offline Off
0 Online Green