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Usin
g
the Network Options Ethernet Tester
50
840 USE 115 00 Version 1.0
Receive Interrupts and Transmit Interrupts. The number of times the PCNET
controller chip has
g
enerated interrupts.
Transmit timeout errors. The number of times the transmitter has been on the
channel lon
g
er than the interval re
q
uired to send the maximum len
g
th frame of
1519 b
y
tes. This is also known as a babble error.
Collision errors. The number of collisions detected b
y
the Ethernet chip.
Missed packet errors. The number of times a received frame was dropped
because a receive descriptor was not available.
Memor
y
errors. The number of times an Ethernet controller chip experienced
an error accessin
g
shared RAM. A memor
y
error will cause a restart.
PcNet restart count. The number of times the Ethernet controller chip was
restarted due to fatal runtime errors, includin
g
memor
y
errors, transmit buffer
errors and transmit underflow.
Framin
g
error. The number of times an incomin
g
frame contained a non-
inte
g
er multiple of ei
g
ht bits.
Overflow errors. The number of times the receiver has lost part or all of an
incomin
g
frame, due to an inabilit
y
to store the frame in memor
y
before the
internal FIFO overflowed.
CRC errors. The number of times a CRC
(
FCS
)
error was detected on an
incomin
g
frame.
Receive buffer errors. The number of times a receive buffer was not available
while data chainin
g
a received frame.
Transmit buffer errors. The number of times the end packet fla
g
on the current
buffer was not set and the Ethernet controller did not own the next buffer. A
transmit buffer error causes a restart.
Silo Underflow. The number of times a packet was truncated due to data late
from memor
y
. A Silo Underflow will cause a restart.
Late Collision. The number of times a collision was detected after the slot time
of the channel had elapsed.
Lost Carrier. The number of times a carrier was lost durin
g
a transmission.
Transmit retries. The number of times the transmitter has failed after 16
attempts to transmit a messa
g
e, due to repeated collisions.
These statistics also ma
y
be obtained from the MSTR block. Refer to the
Ladder
Logic Block Library User Guide
for details.
- Modicon Quantum Ethernet 1
- Web Embedded Server 1
- Module User Guide 1
- Web Embedded Server Module 3
- User Guide 3
- Document Set 4
- Contents 10
- About This Book 11
- Document Scope 11
- Related Documentation 12
- Validity Note 12
- Introduction 13
- Twisted Pair 140 NOE 211 10 14
- Fiber Optic 140 NOE 251 10 14
- 1.2 Front Panel Components 15
- 840 USE 115 00 Version 1.0 16
- NOE 251 10 16
- NOE 211 10 17
- 1.2.2 Address Labels 18
- 8 4 . 1 1 . 1 1 4 . 1 6 8 19
- 1.2.3 Twisted Pair Connector 20
- 1.2.4 Fiber Optic Connectors 20
- 1.3 Utility Diskette 21
- 1.4.2 Compatibility 23
- 2.1 Before You Begin . . 25
- 2.1.2 Verifyin 26
- 2.2 Installing the Module 27
- 2.2.3 Connecting the Cable 28
- 2.4.2 Assigning a Slot Number 31
- 2.4.5 Resetting the Module 32
- The MSTR Instruction 35
- 3.1 Introduction 35
- 3.2 MSTR Description 35
- 3.2.1 Characteristics 36
- 3.2.2 Representation 37
- data area 44
- control block 44
- information: 50
- Wide Web 51
- 4.1 Introduction 51
- Retrievin 52
- Data via the World Wide Web 52
- Premium PLCs 53
- Using the Network Options 55
- Ethernet Tester 55
- 5.1 Introduction 55
- Figure 21 Get Statistics Box 58
- Figure 22 Sample Statistics 59
- Figure 23 Read Register Box 61
- Ladder Logic Block 62
- Library User Guide 62
- Maintenance 63
- 6.1 Responding to Errors 63
- 6.1.2 Active LED 64
- 6.1.3 Ready LED 64
- Specifications 73
- Ethernet Developers Guide 75
- B.1 Introduction 75
- B.2 References 75
- B.3 Overview 76
- B.4 Development Environment 76
- B.5 Class Descriptions 77
- B.6 The CSample_doc Class 78
- B.7 The CSample_View Class 79
- B.8 Timers 81
- B.9 Transaction Processing 81
- B.10 Transmit State Machine 82
- B.11 Receive State Machine 84
- Quantum Ethernet TCP/IP 87
- Modbus Application Protocol 87
- C.1 Introduction 87
- C.3 TCP/IP Specific Issues 92
- C.4 Reference Documents 93
- Suppliers 95
- Glossary 100
- 840 USE 115 00 Version 1.0 103
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