Omron SYSDRIVE 3G3JV User Manual page 160

Communications
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 required to detect a communications error will be longer,
during which the Inverter cannot be controlled. Therefore, be sure to set an appropriate
period.
H 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.
* Step Repeat
j 00
Reset/R Send &
(1) Receive
j 01
Reset/R Send &
(1) Receive
j
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 messages by making use of the number (N).
Note 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.
Note Only the Send & Recv command is used for communications with the 3G3JV except for sending
broadcast messages, in which case the Send & Receive command is used.
Retry
Set the number of times to retry the command within a range from 0 to 9.
7-44
Com- Retry Send
mand wait
3 ---
3 ---
Send Recv
mes- message
sage
Input Input Yes
send response
Status Read Yes
response
Chapter 7
Res- Next Error
ponse
Next Abort
End Abort