Echoback Response Time - YASKAWA E-7S SERVOPACK SGD7S Product Manual

14.6

Echoback Response Time

The following diagram shows the response time from the command transmission until the
echoback.
Command
Echoback
PnB00 (Protocol) Settings
0001h:
Full-duplex wiring is used for communica-
tions method.
Echoback is performed for each character.
0003h:
Half-duplex wiring is used for communica-
tions method.
CR is used as the delimiter.
Echoback is performed for each character.
0004h:
Half-duplex wiring is used for communica-
tions method.
CR is used as the delimiter.
Echoback is performed for each com-
mand.
0006h:
Half-duplex wiring is used for communica-
tions method.
CRLF is used as the delimiter.
Echoback is performed for each character.
0007h:
Half-duplex wiring is used for communica-
tions method.
CRLF is used as the delimiter.
Echoback is performed for each com-
mand.
For PnB00 = 0001h and PnB01 = 0000h (bit rate of 9,600 bps):
Example
t
When using half-duplex wiring, the host controller must set the line driver to high impedance
within the t
Important
Stop bit
High impedance
1
−
min =
×
E Bit rate 2
min. response time.
E
t
E
Start bit
t Min.
E
1
-
Bit rate × 2
(Centered at the command
stop bit)
1
250 μs −
Bit rate × 2
1
−
= -52 μs
=
×
9600 2
14.6 Echoback Response Time
High impedance
t Max.
E
1
100 μs +
Bit rate × 2
1
600 μs +
Bit rate × 2
14
14-9