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1026
Network Instructions
Section 3-25
3-25 Network Instructions
3-25-1 About SYSMAC NET Link/SYSMAC LINK Operations
The network instructions can be divided into two types, SEND(090)/
RECV(098) and CMND(490). These instructions are transmitted between
Units (CPU Units, CPU Bus Units, and computers) in a network to transfer
data and control operation, such as changing the operating mode.
The commands executed by the network instructions are known as “FINS
commands” and are used for communications between FA control devices.
(Refer to the CS/CJ Series Communications Commands Reference Manual
for details on FINS commands.) With FINS commands it is possible to com-
municate (by the command/response format) with any Unit in any network or
on the CPU Rack itself just by specifying the network address, node number,
and unit number of the destination Unit.
In the following example, a FINS command is sent to the CPU Unit through
node number 2 in network address 00.
1,2,3...
1.
Network address:
Address of the network (local network = 00)
2.
Node number
Logical address in the network
3.
Unit number
Unit number of the destination Unit
a) CPU Unit:
00
b) CPU Bus Unit: Unit 10 hexadecimal
c)
Special I/O Unit (except for C200H-series Special I/O Units):
Unit 20 hexadecimal
Instruction
Message content
Operation
SEND(090)/
RECV(098)
Commands to transmit/
receive data
(FINS command)
CMND(490)
Arbitrary commands
(FINS command)
Data reception
CPU Unit
Other device
CPU Unit,
CS1 CPU Bus Unit or
computer
Data transmission
SEND(090) or
RECV(098)
CMND(490)
Command sent
Other device
CPU Unit
Response returned
CPU Unit,
CS1 CPU Bus Unit, or
computer
Network address 01
CPU Unit (Rack)
Node number 2
Node number 1
Network address 00
(local network)
Содержание SYSMAC CS Series
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Страница 4: ...iv ...
Страница 30: ...xxx ...
Страница 186: ...146 List of Instructions by Function Code Section 2 4 ...
Страница 194: ...154 3 35 4 MOVE BIT MOVBC 568 1273 3 35 5 BIT COUNTER BCNTC 621 1275 3 35 6 GET VARIABLE ID GETID 286 1277 ...
Страница 1320: ...1280 Model Conversion Instructions Unit Ver 3 0 or Later Section 3 35 ...
Страница 1390: ...1350 CJ series Instruction Execution Times and Number of Steps Section 4 2 ...
Страница 1391: ...1351 Appendix A ASCII Code Table ASCII SP Four leftmost bits Four rightmost bits ...
Страница 1392: ...1352 ASCII Code Table Appendix A ...
Страница 1404: ...1364 Revision History ...