Oriental motor BLH Series - Timing Charts

93
Modbus RTU control (RS-485 communication)
11.9 Timing charts
11.9.1 Communication start
Query
Response
Master
Slave
Power-on
C
ommunication
ON
OFF
1 s or more ∗
*
P1 "transmission waiting time" parameter + C3.5 (silent interval)
11.9.2 Operation start
Query ∗1
Response
Master
Slave
MOVE output
C
ommunication
ON
OFF
∗2
∗3
*1
A message including a query to start operation via RS-485 communication
*2
P1 "transmission waiting time" parameter + C3.5 (silent interval)
*3
C3.5 (silent interval) + 2 ms or less
11.9.3 Operation stop, speed change
Query ∗1
Response
Master
Slave
Motor speed command
C
ommunication
∗4
∗2
∗3
*1
A message including a query to stop operation and another to change the speed via RS-485 communication
*2
Command processing time + C3.5 (silent interval) + P1 "transmission waiting time" parameter
*3
Command processing time + C3.5 (silent interval) + 2 ms or less
*4
It varies depending on the setting value of the acceleration time and deceleration time or a load condition.
11.9.4 Input signals
Query ∗1
Response
Master
Slave
C
ommunication
∗2
∗3
General signals
ON
OFF
*1
A message including remote output via RS-485 communication
*2
P1 "transmission waiting time" parameter + C3.5 (silent interval)
*3
C3.5 (silent interval) + 2 ms or less