Omron SYSMAC CV1000 User Manual

65
The following timing charts show the transmission timing in full-duplex commu-
nications in which the host computer is sending data.
(2)
Command
Command
1
0
1
0
Command
Command
Response required
Host computer
Host Link Unit
Response
Response
Execution possible flag
Reception of command End of reception
Response not required
Host Link Unit
Execution possible flag
Reception of command
End of reception
Response
Host computer
(2)
(1)
(1)
It is possible to send a command to the host computer even if the Host Link Unit
is receiving a command from the host computer (refer to (1) of the above). The
response of the Host Link Unit for the command from the host computer will be
transmitted only after the command to the host computer is completed (refer to
(2) of the above). If no response from the host computer is required, the execu-
tion possible flag is ON when the command to the host computer is delivered
from the PC to the Host Link Unit.
The following timing charts show the transmission timing in full-duplex commu-
nications in which a command is sent while the host computer is receiving data.
(2)
Command
Response
Response
Reception of command
End of reception
(1)
(1) (2)
End of reception
Reception of command
Command
Response
Command
Command
Response required
Host computer
Host Link Unit
Execution possible flag
Response not required
Host computer
Host Link Unit
Execution possible flag
1
0
1
0
The above timing charts show that the Host Link Unit is transmitting a response
for a command from the host computer (refer to (1)), in which case a command to
the host computer from the Host Link Unit will be transmitted only after the Host
Link Unit completes transmitting the response. If no response from the host
Full-duplex
Communications
Communications Timing Section 4-5

Omron SYSMAC CV1000 Specifications

General

Brand	Omron
Model	SYSMAC CV1000
Category	Controller
Language	English