Network Disconnection Information Clear - Omron SYSMAC 3G8F7-CLK12-E Operation Manual

Commands and Responses for the Support Board
Description

6-3-10 NETWORK DISCONNECTION INFORMATION CLEAR

Command Block
Number of network disconnections (response): Specifies the number of
times disconnection information has been received from the polling node since
the starting time for disconnection information. If the same disconnection in-
formation is received two or more communications cycles in a row, it is consid-
ered a continuous disconnection and not counted. The value is given as an
8-digit hexadecimal value.
Number of local node disconnections (response): Specifies the number of
times a disconnection has occurred at the local node since the starting time for
disconnection information. If the disconnection information is the same two or
more communications cycles in a row, it is considered a continuous disconnec-
tion and not counted. The value is given as an 8-digit hexadecimal value.
Maximum number of cycles with continuous disconnection (response):
Specifies the largest number of cycles that disconnection information has been
received from the polling node since the starting time for disconnection informa-
tion. The value is given as an 8-digit hexadecimal value. This value can be multi-
plied by the maximum communications cycle time of the Controller Link Network
to estimate the time that data has not been sent and received.
Number of frame dropouts for SL1 and SL2 (response): Specifies the num-
ber of frames that have been normally received by other systems but have not
been received at all at the local node since the starting time for disconnection
information. The value is given as an 8-digit hexadecimal value.
Number of broken frames for SL1 and SL2 (response): Specifies the number
of frames that have been normally received by other systems but for which only
the carrier was received at the local node since the starting time for disconnec-
tion information. The value is given as an 8-digit hexadecimal value.
Number of CRC errors for SL1 and SL2 (response): Specifies the number of
CRC and Manchester errors since the starting time for disconnection informa-
tion. The value is given as an 8-digit hexadecimal value.
Disconnection information can be used for Optical Ring Controller Link Units
and Boards that are in Token Ring Mode to notify the polling node of information
on disconnections and then notify all nodes of the disconnection information
from the polling node. The disconnection information can be used to determined
the location of the disconnection. For details, refer to the Optical Ring Controller
Link Units Operation Manual (W370).
None of the disconnection information except for the Disconnected Line Flags is
cleared when communications recover. The Disconnected Line Flags always
show the most current disconnection status. Disconnected Node Information 1
and 2 are overwritten whenever new information is generated.
Disconnection information can be cleared either by executing the NETWORK
DISCONNECTION INFORMATION CLEAR (06 06) FINS command or from the
Controller Link Support Software (Ver. 2.00 or higher). (The FINS command
must be executed for each node separately.)
Clears the network disconnection information. This command is supported only
by the Optical Ring Controller Link Support Units and Boards in Token Ring
Mode (H-PCF or GI cable).
06 06
Command
code
Section 6-3
93