TCP/IP Ethernet Network Statistics

A TCP/IP Ethernet module replies to local and remote statistics commands from the MBP_MSTR block with the the contents of the databuf array (see the information in the table below):

Word

Meaning

00 to 02

MAC address

e.g. MAC address 00 00 54 00 12 34 is displayed as follows:

Word

00

01

02

Contents

00 00

54 00

12 34

03

Board status (refer to the following table)

04 and 05

Number of receiver interrupts

06 and 07

Number of transfer interrupts

08 and 09

Transfer timeout error count

10 and 11

Collision detection error count

12 and 13

Omitted packets

14 and 15

Memory error count

16 and 17

Number of restarts performed by the driver

18 and 19

Receive framing error count

20 and 21

Overflow error count receiver

22 and 23

Receive CRC error counter

24 and 25

Receive buffer error counter

26 and 27

Transfer buffer error counter

28 and 29

Transfer bin underflow counter

30 and 31

Late collision counter

32 and 33

Lost carrier counter

34 and 35

Number of retries

36 and 37

IP address

e.g. the IP address 198.202.137.113 (or C6 CA 89 71) is represented as follows:

Word

36

37

Contents

89 71

C6 CA

Board Status Word Bit Definition

NOTE: It is best to view the board status word in binary format.

The following table describes the bit definitions of the board status word:

  • 140 NOE 771 x1, versions 2.0, 3.0, 3.1, 3.3 and 3.6 or higher

  • 140 NOE 771 x0, versions 3.0, 3.3 and 3.4 or higher

Bit #

Definition

15

0 = Link LED off 1 = Link LED on

14

0 = Appl LED off 1 = Appl LED on

13

0 = twisted pair 1 = fiber

12

0 = 10 Mbit 1 = 100 Mbit

11 ... 8

(Reserved)

7 ... 4

Module type (see table, below)

3

(Reserved)

2

0 = half duplex 1 = full duplex

1

0 = not configured 1 = configured

0

0 = not running 1 = running
NOTE: Bits are numbered from right to left, starting with bit 0 (low bit). For example, PLC running = 0000 0000 0000 0001 and LED connection = 1000 0000 0000 0000.

The following table describes the word bit definitions for board status for the:

  • 140 NOE 771 x1, version 3.5

  • 140 NOE 771 x0, versions 1.02 and 2.0

  • 140 CPU 651 x0

Bit #

Definition

15 ... 12

Module type (see table below)

11

(Reserved)

10

0 = half duplex 1 = full duplex

9

0 = not configured 1 = configured

8

0 = PLC not running 1 = PLC/NOE running

7

0 = Link LED off 1 = Link LED on

6

0 = Appl LED off 1 = Appl LED on

5

0 = twisted pair 1 = fiber

4

0 = 10 Mbit 1 = 100 Mbit

3 ... 0

(Reserved)
NOTE: Bits are counted from right to left, starting with bit 0 (low bit). For example, PLC running = 0x0100, Application LED = 0x0040, and LED Connection = 0x0080.

Board Status Word Bit Definition by Module Type

The following table describes the values of the module types:

Value of Bits 7...4 or 15...12

Note: See the previous tables for the bit range that applies to your module’s software version.

Module Type

0

NOE 2x1

1

ENT

2

M1E

3

NOE 771 00

4

ETY

5

CIP

6

(reserved)

7

140 CPU 651 x0

8

(reserved)

9

(reserved)

10

NOE 771 10

11

NOE 771 01

12

NOE 771 11

13 ... 15

(reserved)