13.6.3
EGD Configuration Mismatch Errors
When using Ethernet Global Data, the produced exchange (defined at the producer) must
agree with the consumed exchange (defined at the consumer). The consumer generates an
error when the size of an exchange received from the network differs from the configured
size for that consumed exchange.
This error is indicated in the PLC Fault Table as:
LAN system-software fault; resuming
with exception Event = 28, Entry 2 = 1d
As this error is generated each time the mismatched exchange is received, the Ethernet
exception log can quickly fill up with mismatch error events.
Cause
Corrective Action
Producer and Consumer exchange
definitions are of different size.
Review the conflicting exchange
definitions at the producer and at the
consumer. Change the incorrect exchange
definition so that produced and consumed
definitions are the same size.
If the consumer wishes to ignore certain portions of a consumed exchange, be sure that
the length of the ignored portions is correct. The ignored portion is specified as a byte
count.
13.6.4
Receive Resource Exhaustion Errors
Heavy network traffic can exhaust available memory in the Ethernet interface used for
network communications. This most often occurs under heavy Ethernet Global Data
(EGD) traffic on a busy network. Since the traffic on the network is unpredictable, this
error condition may always occur.
This error is indicated in the PLC Fault Table as:
LAN system-software fault; resuming
with exception Event = 28, Entry 2 = 1
Cause
Corrective Action
Heavy EGD traffic exhausts network
data buffers.
Modify the application to reduce the
number, size, or frequency of produced and
consumed EGD exchanges.
Bursts of heavy network traffic are
received at the CPUE05.
Analyze the broadcast and multicast
network traffic received at the CPUE05.
Reduce such traffic if possible.
Ethernet Communications
GFK-1503E User Manual 271
For public disclosure
Summary of Contents for VersaMax PLC
Page 16: ...Notes 16 GFK 1503E VersaMax PLC User Manual For public disclosure ...
Page 38: ...Notes 38 GFK 1503E VersaMax PLC User Manual For public disclosure ...
Page 50: ...Notes 50 GFK 1503E VersaMax PLC User Manual For public disclosure ...
Page 92: ...Notes 92 GFK 1503E VersaMax PLC User Manual For public disclosure ...
Page 112: ...Notes 112 GFK 1503E VersaMax PLC User Manual For public disclosure ...
Page 224: ...Notes 224 GFK 1503E VersaMax PLC User Manual For public disclosure ...
Page 292: ...Notes 292 GFK 1503E VersaMax PLC User Manual For public disclosure ...
Page 316: ...Notes 316 GFK 1503E VersaMax PLC User Manual For public disclosure ...
Page 317: ......