Omron V670 Series, Руководство пользователя

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4-8
In the controller, you can specify the operation parameters (Communication Restriction Time, Character Interval Monitoring Time and
Response Delay Time) according to your system to optimize the performance and reliability.
Usually, you may use the default values. However, this setting allows you to optimize your system. Those parameters are stored in non-
volatile memory in the controller. So, the parameters are not erased even if the power supply turns off.
4-4-1 Communication Restriction Time
In the communication to a tag, if a response cannot be made correctly due to any trouble at the communication after tag detection,
"Retry" is executed to send the same command again.
By specifying the communication restriction time, retry is repeated until the specified time has passed after the command process starts.
In the external trigger system command, command process starts when the command process starts. In the auto system command, com-
mand process starts when the tag has been detected.
* If the default value is set, "retry" is repeated 9 times.
4-4-2 Character Interval Monitoring Time
In the controller, a command is recognized by receiving a termination code of command string sent from a host device. However, if the
entire command string cannot be received completely due to any trouble, receiving is monitored for a specified time after the last char-
acter is received. Then, a format error (14) is returned.
* The default value is 100 ms.
Setting Range
10 to 990 ms. A default value is 0.
Setting Range
0 to 9999 ms.
Controller → Tag
Controller ← Tag
Host ← Controller
External input
Send
Send Send
Retry
Retry
Communication restriction time
Response
Error 72
Host
→
Controller
Host ← Controller
External input
Character interval monitoring time
If there is no data any more
Termination
code
Error 14
Response
4-4 Operation Parameter Setting