The MSTR Instruction

Register

Function

Content

 

 

 

Second implied

Length

Write = number of registers to be sent to slave.

 

 

Read = number of registers to be read from slave.

 

 

 

Third implied

Slave device data

Specifies starting 4x register in the slave to be

 

area

read from or written to (1 = 4001, 49 =40049).

 

 

 

Fourth implied

Low byte

Quantum backplane slot address of the NOE

 

 

module.

 

 

 

Fifth ... eighth

Destination

Each register contains one byte of the 32-bit IP

implied

 

address.

 

 

 

3.2.5Get Local Statistics MSTR Operation

The Get Local Statistics operation (type 3 in the display register of the top node) obtains information related to the local node where the MSTR has been programmed. (See page page 40 for a listing of the TCP/IP Ethernet network statistics).

Control Block

The registers in the MSTR control block (the top node) contain the Get Local

Utilization

Statistics information as described in the following table:

 

 

 

 

 

Register

Function

Content

 

 

 

 

 

Displayed

Operation Type

3

 

 

 

 

 

First implied

Error status

Displays a hex value indicating an MSTR error,

 

 

 

when relevant.

 

 

 

 

 

Second implied

Length

Starting from offset, the number of words of

 

 

 

statistics from the local processor’s statistics

 

 

 

table; the length must be > 0 < data area.

 

 

 

 

 

Third implied

Offset

An offset value relative to the first available word

 

 

 

in the local processor’s statistics table. If the

 

 

 

offset is specified as 1, the function obtains

 

 

 

statistics starting with the second word in the

 

 

 

table.

 

 

 

 

 

Fourth implied

Low byte

Quantum backplane slot address of the NOE

 

 

 

module.

 

 

 

 

 

Fifth .. Eighth

Not applicable

 

 

implied

 

 

 

 

 

 

32

840 USE 115 00 Version 1.0

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Schneider Optics Modicon Quantum Ethernet manual Get Local Statistics Mstr Operation