Oriental motor BLH Series - Page 88

88
Modbus RTU control (RS-485 communication)
z
Set by the parameter
The setting value of the "Group ID" command is saved in the RAM. In this case, if the power supply is turned o, the
setting will be returned to the initial value and the group will be released. Therefore, the group is needed to set again
every time after the power supply is turned on. On the other hand, the "Initial group ID" parameter is stored in the non-
volatile memory. If a group is set in this parameter, the group will not be released even when the power supply is turned
o. The group function can be used immediately when the power supply is turned on.
Related parameter
Parameter name Description Setting range Factory setting
Initial group ID
Sets the address of a group (address number of parent slave).
It is stored even if the power is turned o.
−1: Disable (no group transmission)
1 to 15: Group ID
※
Do not use 0.
−1
Host controller
Address 1
"Group" command: -1 (individual)
Address 2
"Group" command: 1
Address 3
"Group" command: 1
Parent slave Child slave Child slave
Address 1
operation
start
Address 1
operation
stop
Address 2
operation
stop
Address 2
operation
start
Address 1
return
Mot
or operation of address 1
(parent slave
)
Mot
or operation of address 2
(child slave
)
Mot
or operation of address 3
(child slave
)
Address 2
return
Address 1
return
Address 2
return
Master to Slave
Slave to Master