Real Time Automation, Inc.
51
1-800-249-1612
LED Status
- This is the Status for
All
PLC’s
or the specific PLC selected.
1)
Connected (Solid Green)
–
All of the enabled PLC devices are connected and running.
2)
Not Connected (Flashing Green)
–
No PLC’s 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 1 or more of the
enabled PLC’s.
a.
Verify the IP, Slot and Controller type is 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 data 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
PLC’s
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).
4)
Read / Write Timeouts
–
Since we are TCP based, the gateway will timeout on the read or write
and close the TCP connection. This counter will not continually increment. The Bitmap will
reflect the missing PLC.
5)
Read Errors
–
Number of read error responses sent from the PLC to the gateway.
6)
Write Requests
–
Number of write requests sent from the gateway to the PLC (G2N).
7)
Write Responses
–
Number of valid write responses sent from the PLC to the gateway.
8)
Write Errors
–
Number of write error responses sent from the PLC to the gateway.
Common Error Strings
-
These are the values for
All
PLC’s
or the specific PLC selected.
1)
IP: xxx.xxx.xxx.xxx “tagname” (04) Path Segment Error –
The tag name is wrong or the tag is not
defined as a controller scope tag.
2)
IP: xxx.xxx.xxx.xxx “tagname” (08) Service Not Supported –
The IP Address or the Slot Number
does not match with the PLC the gateway is setup to communicate with.
3)
IP: xxx.xxx.xxx.xxx “tagname” (1E) Embedded Server Error –
The tag name that is setup within
the gateway doesn’t match a tag setup in the PLC.
4)
IP: xxx.xxx.xxx.xxx “tagname” (ff,2105) Access beyond end of array –
Tried to read/write too
much data.
5)
IP: xxx.xxx.xxx.xxx “tagname”
(ff, 2107) Abbreviated type mismatch
–
The data type of the tag,
on a write, in the gateway doesn’t match the tag in the PLC.
