Real Time Automation, Inc.
71
1-800-249-1612
LED Status
- This is the Status for
All PLCs
or the specific PLC selected.
1)
Connected (Solid Green)
–
All the enabled PLC devices are connected and running.
2)
Not Connected (Flashing Green)
–
No PLCs are enabled.
a)
Verify Allen-Bradley PLC settings and ensure that the
Enable
checkbox is checked for the
appropriate device(s).
3)
Connection Timeout (Flashing Red)
–
The gateway cannot open a connection to one or more of the
enabled PLCs.
a)
Verify the IP, slot and controller type are accurate for the missing connection. Missing
connection can be determined from the Network Bitmap Status value.
4)
Communication not attempted yet (Flashing Red)
–
(Specific Server Only) No reads are configured
and dat
a needed for writes isn’t valid yet.
5)
Dependency Error (Flashing Red)
–
The dependent protocol is missing causing the communication to
go to inactive.
a)
The other protocol must be connected.
Variables
- These are the values for
All PLCs,
or the specific PLC selected.
1)
Network Bitmap Status (hex)
–
Each bit corresponds to a PLC. If the bit is set, then the PLC is
connected, otherwise the bit is 0. Bit 0 (right most) is PLC 1 and Bit 4 is PLC 5.
2)
Read Requests
–
Number of read requests sent from the gateway to the PLC (N2G).
3)
Read Responses
–
Number of valid responses sent from PLC to the gateway (G2N).
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