Schneider Optics Web Embedded Server - Manual (Page 45)

The MSTR Instruction
840 USE 115 00 Version 1.0 35
3.2.9 Peer Cop Health MSTR Operation
The peer cop health operation (type 9 in the displayed register of the top node)
reads selected data from the peer cop communications health table and loads that
data to specified 4x registers in state RAM. The peer cop communications health
table is12 words long, and the words are indexed via this MSTR operation as words
0 ... 11.
Control Block
Utilization The registers in the MSTR control block (the top node) contain the information for a
Peer Cop Health operation as described in the following table:
Peer Cop
Communications
Health Status
Information The peer cop communications health table (shown below) comprises 12
contiguous register that can be indexed in an MSTR operation as words 0 ... 11.
Each bit in each of the table words is used to represent an aspect of
communications health relative to a specific node on the TCP/IP network:
z The bits in words 0 ... 3 represent the health of the global input communication
expected from nodes 1 ... 64. Since global input is not supported these bits are
set to zero.
z The bits in words 4 ... 7 represent the health of the output from a specific node.
z
The bits in words 8 ... 11 represent the health of the input to a specific node.
Register Function Content
Displayed Operation Type 9
First implied Error status Displays a hex value indicating an MSTR error,
when relevant.
Second implied Data Size Number of words requested from peer cop table
(range 1 ... 12).
Third implied Index First word from the table to be read (range 0 ...
11, where 0 = the first word in the peer cop table
and 11 = the last word in the table).
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.