Omron CQM1H-SCB41 Operation Manual page 65

Host Link Communications
Setting a Transmission
Delay
Transmission delay
Response sent
Response to
1st command
Transmission delay
Command sent
1st TXD( )
command
50
A transmission delay can be set in the PC Setup to create a minimum interval
between sending a response from the PC to a Host Link command until the
beginning of sending the response to the next command.
The delay is not used in the response to the first command. The delay will
affect responses to other commands only if the normal time for the response
comes before the time set for the transmission delay has expired.
If the delay time has already expired when the next command is received, the
response will be spent immediately. If the delay time has not expired, the
response will be delayed until the time set for the transmission delay has
expired.
The operation of the transmission delay for responses to host commands is
illustrated below.
Transmission delay
Response sent
Response to
2nd command
The transmission delay will also be effective in PC-initiated communications
as a minimum interval between sending commands to the host.
The delay is not used in sending the first command. The delay will affect other
commands only if the time set for the transmission delay has not expired
when the next command is ready to be sent.
If the delay time has already expired when the next command is ready, the
command will be spent immediately. If the delay time has not expired, the
command will be delayed until the time set for the transmission delay has
expired.
The operation of the transmission delay for PC-initiated communications is
illustrated below.
Transmission delay
Command sent
2nd TXD( )
command
Transmission delay
Response sent Response sent
Response to Response to
3rd command 4th command
Transmission delay
Command sent Command sent
3rd TXD( ) 4th TXD( )
command command
Section 4-4
Time
Time