5 get local statistics mstr operation, Control block utilization, Get local statistics mstr operation – Schneider Optics Web Embedded Server User Manual
Page 42

The MSTR Instruction
32
840 USE 115 00 Version 1.0
3.2.5
Get 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
Utilization
The registers in the MSTR control block (the top node) contain the Get Local
Statistics information as described in the following table:
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
area
Specifies starting 4x register in the slave to be
read from or written to (1 = 4001, 49 =40049).
Fourth implied
Low byte
Quantum backplane slot address of the NOE
module.
Fifth ... eighth
implied
Destination Each
register contains one byte of the 32-bit IP
address.
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
implied
Not applicable