Omron SYSDRIVE 3G3MV - Page 199

7-5
n155 RS-422/485 Parity Selection Register 019B
Hex
Changes during
operation
No
Setting
range
0 to 2 Unit of
setting
1 Default setting 0
Set Values
Value Description
0 Even
1 Odd
2 No parity
In normal serial communications, datais configured in single bytes,and messages are
created by stringing together multiple bytes of data. The parity check described here
sets the check for eachbyteofdata. Set the paritycheck methodthatisrequiredbythe
Master.
Note Theentire message is checkedbyaseparatecheckcodecalled “CRC-16,” sothe
communicationsdatawillbechecked evenifnospecial paritycheckisperformed.
H Send Wait Time Setting (n156)
·Set this parametertoan awaiting periodfor returning aresponse afterthe DSR (data-
send-request) message is received from the Master.
n156 RS-422/485 Send Wait Time Register 019C
Hex
Changes during
operation
No
Setting
range
10 to 65 (ms) Unit of
setting
1 ms Default setting 10
Set Values
·WhentheDSRmessageisreceivedfromtheMaster,theInvertermust waitforacom-
munications time of 24-bit length plus the set value in n156 before returning a
response.
Set this value according to the response time of the Master.
H RTS Control Selection (n157)
·Select whether or not to enable the RTS (request-to-send) communications control
function.
Communications Chapter 7