Rockwell Automation GMLC Reference Manual - Manual (Page 406)

Publication GMLC-5.2 - November 1999
On RIO 369
Recoverable Error
When you select Recoverable Error from the RIO Status menu, the
current task pauses until (Wait for RIO Status), or branches to the top—
true—node if (If RIO Status), the Remote I/O link is failing due to
transmission errors. This means that the RIO link is still operating, but
fails completely in the future, at which point the RIO status changes to
non-recoverable fault.
Standby
When you select Standby from the RIO Status menu, the current task
pauses until (Wait for RIO Status), or branches to the top (true) node if (If
RIO Status), the Remote I/O link is in standby mode. When standby mode
concludes, the status changes to Online.
Offline
When you select Offline from the RIO Status menu, the current task
pauses until (Wait for RIO Status), or branches to the top (true) node if (If
RIO Status) one of the following occurs:
• there is a problem with the RIO link itself
• the RIO option in the motion controller is not functioning properly
After resetting the RIO adapter, its status is Offline while awaiting the
first scan from the RIO scanner. After the adapter detects a proper scan
from the scanner, its status changes to Online.
Online
When you select Online from the RIO Status menu, the current task
pauses until (Wait for RIO Status), or branches to the top—true—node if
(If RIO Status), the Remote I/O Adapter is communicating properly with
the PLC. This is the normal status condition.
Wait for RIO Block Transfer
Use Wait for RIO Block Transfer to pause the program until the motion
controller detects either a block transfer read (BTR) or write (BTW) from
the RIO scanner.