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[1] Setting the computer link to send and receive data
When a computer link message format is used, the sending and receiving details of the transmission
buffer are set as follows.
1 Setting the sending details (command)
1
1
1
1
Put the address of the [information section] and [data section] containing the data to be sent in the
transmission buffer (base address +2000 to 3777
Transmission
buffer address
+2000
to
+2047
+2050
+2051
+2052
+2053
to
+3777
+4040
+4041
+4042 to 4043
+4044 to 4047
+4050 to 4051
+4052
+4053
+4054 to 4055
2
2 Transmit the data
2
2
2
Write 01
at the base address +301 in communication control area and the details in the trans-
(H)
mission buffer will be sent to the destination node.
Communication control
area address
+301
Communication control area settings
Enter the top address of the communication control area and the area (base address +000 to
301
) will be allocated. Enter the top address at parameter addresses 30 to 32
(8)
12-1.
Continued on the next page.
(8)
Header (40 bytes)
- Normally, all 40 bytes to 00
When you want to communicate crossover
two layers including Ethernet, enter
expansion header.
- [5] Two layer communication with Ethernet.
c-ID: 47
(H)
ATTR: 00
(H)
COM: Command code - Page 9-14.
Command Text: Command detail
- [3] Description of each command
Node number of destination node.
00
(Response message type)
(H)
1000
(Transaction code: request)
(H)
00
(Top address of the virtual address
(H)
space)
00
(Data length requesting to the virtual
(H)
address space)
01
(Current fragment block number)
(H)
01
(Total fragment block number)
(H)
00
(Current block length)
(H)
Details
(8)
Transfer the data
9-17
Chapter 9: Message transfers
, and base address +4040 to 4055
(8)
Details
.
(H)
[information section]
(Transmission buffer table
(Communication control area table
See page 10-1.)
).
(8)
Sending
Command
[data section]
page 9-
14.
Sending
Page 9-4.)
.
Page
(8)
9
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