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12-13
12.3.4 Recovery Possible Error
These error codes are displayed if an error occurs in the communication control unit.
If one of these errors occurs, the E1 LED on the front panel of the ET-LAN unit flashes.
Code
Name
Description
Step to take
Remark
A001H
UDP check sum
error
The checksum value of the
UDP packet received from the
partner node is erroneous.
Send the data once again
from the partner node.
If any of these
errors occur, the E1
LED on the front
panel of the ET-
LAN unit flashes.
A002H
UDP/IP level
error
Communication processing was
carried out with a different port
number than the one registered
for UDP.
Carry out the
communication processing
with the correct port
number.
A003H
Transmission
error
This error indicates that a
notification was received from
the transmission section of the
unit.
Carry out the transmission
processing again.
A004H
IP processing
error
Error notification was received
from the IP.
Assembly timeout error: During
assembly of the IP split data,
the remaining data was not
received within the allowed time
limit.
Specified IP address does not
exist:
There was no response to an
ARP request for the specified
IP address of the partner node.
Checksum error:
This notification is received if
the IP header checksum value
of an IP packet that has been
received is not correct.
Internal resource error:
This notification is received if
the IP resource is insufficient.
Different IP address was
specified for sub-network
address from that of source
node.
This notification is received if
the IP address specified for the
partner node is different from
that of the source node. This
does not occur if a router
address was specified,
however.
Carry out the transmission
processing again.
If communication cannot
be performed after the
occurrence of error, use
the reset function or turn
the power off and on
again.
Summary of Contents for FP2 ET-LAN
Page 11: ...Chapter 1 Unit Functions and Restrictions ...
Page 14: ...1 4 1 1 4 Connecting to a Network AFP2790 100BASE TX 10BASE T 10BASE5 AUI AFP27901 ...
Page 24: ...1 14 ...
Page 25: ...Chapter 2 Names and Functions of Parts ...
Page 29: ...Chapter 3 Connection for LAN Cable ...
Page 37: ...Chapter 4 Confirming the Design Contents ...
Page 49: ...Chapter 5 Initialization Processing and Termination Processing ...
Page 68: ...5 20 ...
Page 69: ...Chapter 6 Open Processing and Close Processing ...
Page 84: ...6 16 ...
Page 85: ...Chapter 7 Computer Link Function ...
Page 94: ...7 10 Program example ...
Page 97: ...7 13 Example of communication data Same hierarchy communication ...
Page 100: ...7 16 Example of communication data Other hierarchy communication ...
Page 101: ...7 17 Other hierarchy communication for MEWTOCOL COM ...
Page 102: ...7 18 ...
Page 103: ...Chapter 8 Data Transfer Function ...
Page 111: ...8 9 Program example ...
Page 114: ...8 12 Example of communication data Same hierarchy communication ...
Page 117: ...8 15 Example of communication data Other hierarchy communication ...
Page 119: ...8 17 Other hierarchy communication for MEWTOCOL DAT ...
Page 120: ...8 18 ...
Page 121: ...Chapter 9 Transparent Communication Function ...
Page 137: ...9 17 Program example ...
Page 143: ...Chapter 10 Auto Connection ...
Page 155: ...10 13 Case 1 Ladder program example ...
Page 169: ...Chapter 11 E mail Function ...
Page 200: ...11 32 ...
Page 201: ...Chapter 12 Error Log Function ...
Page 203: ...12 3 Latest log block area Log block reading processing area ...
Page 219: ...Chapter 13 Troubleshooting ...
Page 224: ...13 6 13 2 4 Troubleshooting Flowchart ...
Page 225: ...13 7 ...
Page 229: ...Chapter 14 MEWTOCOL Communication Procedure ...
Page 242: ...14 14 To write to an index register ...
Page 262: ...14 34 ...
Page 263: ...Chapter 15 Specifications ...
Page 292: ...15 30 15 6 ASCII Codes ...
Page 293: ...15 31 15 7 Dimensions AFP2790 FP2 ET1 AFP27901 FP2 ET2 ...
Page 294: ......
Page 295: ...Chapter 16 Sample Program ...
Page 298: ...16 4 ...
Page 299: ...16 5 ...
Page 300: ...16 6 ...
Page 301: ...16 7 ...
Page 304: ......
Page 305: ......