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105
Commands and Responses for the Support Board
Section 6-3
Disconnected node information 1 and 2 (response):
The address of the
disconnected node and the direction of the disconnection from the node
(upstream or downstream) are returned.
Disconnected node information is returned for two disconnections: Discon-
nected Node Information 1 and Disconnected Node Information 2.
Starting time for disconnection information storage (response):
These
parameters show the seconds, minutes, hour (0 to 23), date, month, and year
(the rightmost two digits) in BCD specifying the last time the local node was
turned ON, the Controller Link Unit/Board was reset, or the disconnection
information was cleared. The time will be taken from the clock data in the local
node.
Number of network separations (response):
Specifies the number of times
the local node has been separated from the network since the starting time for
disconnection information. The value is given as an 8-digit hexadecimal
value.
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 disconnec-
tion information is received two or more communications cycles in a row, it is
considered 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 discon-
nection 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
information. The value is given as an 8-digit hexadecimal value. This value
can be multiplied by the maximum communications cycle time of the Control-
ler 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
number 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 dis-
connection information. The value is given as an 8-digit hexadecimal value.
Number of broken frames for SL1 and SL2 (response):
Specifies the num-
ber 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 disconnection 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 infor-
mation. The value is given as an 8-digit hexadecimal value.
7
6
5
4
3
2
1
0
15 14 13 12 11 10 9
8
0 0 0 0 0
0 0
Disconnection Direction Flag
0: SL1 (upstream)/
N
ormal
1: SL2 (downstream)
Disconnected
N
ode Address
(2-digit hexadecimal (00:
N
o
disconnection information))
1st byte
2nd byte
Summary of Contents for SYSMAC 3G8F7-CLK12-EV1
Page 2: ......
Page 4: ...iv ...
Page 20: ...xx Conformance to EC Directives 6 ...
Page 48: ...28 Applications Precautions Section 1 4 Example CX Programmer Response Timeout Setting ...
Page 68: ...48 Backup Power Supply Wiring Optical Ring Systems Only Section 2 4 ...
Page 74: ...54 Using the C Library Section 3 2 ...
Page 110: ...90 Changing the Data Link Tables with Active Data Links Section 5 5 ...
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