Omron SYSDRIVE RV Series User Manual page 337

Ts
Send & Recv Send
Recv
Ts: Send wait time set per step. Nothing is sent during this period.
Tfs: Monitors the completion of the data sent. If the data transmission is not finished within this period,
the data will be re-transmitted.
Tr: Monitors the response to be received. If the response is not returned within this period, the response will
be re-transmitted.
Tfr: Monitors the reception completion of the response. If the response transmission is not finished within this
period, the response will be re-transmitted.
Note If the Tr period is too long, the time to detect a communications error will be longer, during which the Inverter
cannot be controlled. Therefore, be sure to set an appropriate period.
Creating a Step
1. Double-click on New Protocol with the left button of the mouse.
2. Click on New Sequence with the left button of the mouse and click on a blank space with the right button
of the mouse.
3. Select Create Step.
The following table will appear. Set the parameters related to the step in the table.
Com-
* Step Repeat
mand
Send &
00 Reset/R (1)
□
Send &
01 Reset/R (1)
□
□
Step
Step number. The step number is automatically set.
Repeat
The number (N) of times to repeat the step is set within a range from 0 to 255. It is possible to change mes-
sages by making use of the number (N).
In this example, the same message is sent to three Slaves with addresses different to each other. Therefore, the
number is set to 3 in word S + 1. The number of Slaves is specified by the operand. Therefore, select Channel,
use the Edit command to set Data Address to Operand, and set 0N + 1 in order to select word S + 1. In the
above table, "Reset" means that the repeat counter must be reset first in the step.
Command
Set the commands, such as Send, Recv, and Send & Recv.
Only the Send & Recv command is used for communications with the 3G3RV except for broadcasting mes-
sages, in which case the Send command is used.
Monitored for
Tfs period
Fig 6.70
Retry Send wait
3 0.02
Recv
3 0.02
Recv
Communications Functions
Monitored for
Tr period
Monitored for
Tfr period
Send Recv
Response
message message
Input
Input send
response
Read
Status
response
Next Error
Yes Next Abort
Yes End Abort
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