102
Commands and Responses for the Support Board
Section 6-3
Status (response):
The data link status of each mode is returned as shown
in the following diagram. It is the same as the data link read using a library
function. (Refer to page 85.)
Note
1. The length of data returned is different for Wired and Optical Ring Units.
2. The data link status is not refreshed while the data links are inactive.
3. Nodes which are not active in the network or participating in the data links
will generate communications errors.
4. Any node which is not active in the network retains the status that existed
immediately prior to the generation of the communications error.
5. Only the PC operation status and PC error status will be refreshed for
nodes that are not participating in a data link that is active in the network.
6-3-8
CONNECTION CONFIGURATION INFORMATION READ
Reads the node address of Controller Link Units and Boards connected to the
ring in order in the downstream direction. This command is supported only by
the Optical Ring Controller Link Support Units and Boards in Token Ring
Mode (H-PCF or GI cable).
Command Block
7
6
5
4
3
2
1
0
0
7
6
5
4
3
2
1
0
Byte 1
Byte 2
Byte 3
Bit
Byte 62
N
ode #1
N
ode #2
N
ode #3
N
ode #62
Data link status for each node
PC status
0: Inacti
v
e
1: Acti
v
e
Communications error (data link reception)
0:
N
ormal
1: Error
PC's CPU Unit error
0:
N
ormal
1: Error
Data link participation
0:
N
ot in data link or data link inacti
v
e
1: In data link
Offset error
0:
N
ormal
1: Error
Error: Offset exceeds number of send words.
Insufficient (short) recei
v
e area
0: Sufficient
1: Insufficient
Insufficient: Recei
v
e area is smaller than send area.
Excess data is truncated; other data is recei
v
ed.
Remaining recei
v
e area
0:
N
ot remaining
1: Remaining
Remaining: Recei
v
e area is larger than send area.
Data is recei
v
ed and remaining words are cleared.
Only node addresses 1 to 32 (i.e., 32 bytes) are returned for Wired Units if the type is set to 0000 hex or omitted.
Command
code
04
06
N
umber of nodes to read
First node to read
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 ...
Page 187: ......