Sharp JW-20FLT ユーザーズマニュアル
7-13
Chapter 7: Computer Link Function
7
[7] Communication management table
The status of each node is controlled using an individual node management table (maintained by the
node itself), a participating node management table, and a network management table.
node itself), a participating node management table, and a network management table.
(1) Local node management table
The settings in each local node management table are controlled by the node itself.
Local node management table
- "0x1ff" is the hexadecimal notation for 1FF
(HEX)
.
For details about the local node management table maintained by the JW-50FL, see page
10-5.
Item
Number
of bytes
Description
Node number
1 byte
1 to 254
Area 1 of common memory: Data top
address
address
2 bytes Word address (0 to 0x1ff)
Area 1 of common memory: Data size
2 bytes Size (0 to 0x1ff)
Area 2 of common memory: Data top
address
address
2 bytes Word address (0 to 0x1fff)
Area 2 of common memory: Data size
2 bytes Size (0 to 0x1fff)
Upper layer status
2 bytes RUN/STOP/ALARM/WARNING/NORMAL
Token monitor time
1 byte
In units of 1 msec.
Minimum separation of frames
1 byte
In units of 100 µsec.
Vendor name
10 bytes Vender name
Manufacturer name
10 bytes Manufacture model name, device name
Node name (facility name)
10 bytes Node name by user entry
Protocol version
1 byte
Fixed to 0x80
FA link status
1 byte
Participate/leave
Local node's status
1 byte
Doubled node number detection, etc.