YASKAWA SI-EM3 Installation Manual page 50

7 Modbus TCP/IP Messaging
u
Enter Command Types
The drive supports two types of Enter Commands as shown in the table below. An Enter
Command is enabled by writing 0 to register number 0900H or 0910H.
Enter Commands
n
Register Number
0900H
0910H
Note: Because the EEPROM can be written to a maximum of 100,000 times, refrain from frequently
writing to the EEPROM. An Enter Command is not required if reference or broadcast data are
sent to the drive.
u
Enter Command Settings
When replacing earlier Yaskawa drive models with a 1000 Series drive and keeping the
MEMOBUS/Modbus communications settings, parameter H5-11 needs to be set in
accordance with how the Enter Command functions in the older drive. H5-11 determines if
an Enter Command is needed or not in order to activate parameter changes in the drive.
• If upgrading from a G7 or F7 series drive to 1000 Series, set parameter H5-11 to 0.
• If upgrading from a V7 series drive to 1000 Series, set parameter H5-11 to 1.
H5-11 and the Enter Commands
n
H5-11 Settings
Drive being replaced.
How parameter settings
are enabled.
Upper/lower limit
check.
Default value of related
parameters.
Error handling when
setting multiple
parameters.
50
Table 10 Enter Command Types
Writes data into the EEPROM (non-volatile memory) of the drive and enables the data to
RAM at the same time. Parameter changes remain even if the power supply is cycled.
Writes data in the RAM only. Parameter changes are lost when the drive is shut off.
Table 11 Enter Command Types
H5-11 = 0
G7, F7
When the Enter Command is received from
the master.
Upper/lower limit check is performed
taking the settings of related parameters into
account.
Not affected. The settings of related
parameters remain unchanged. Parameters
must be changed manually if needed.
Data is accepted even if one setting is
invalid. The invalid setting will be
discarded. No error message occurs.
YASKAWA ELECTRIC TOBP C730600 91D YASKAWA AC Drive Option SI-EM3 Installation Manual
Description
V7
As soon as the value is changed.
The upper/lower limit of the changed
parameter is checked only.
The default settings of related parameters
are changed automatically.
Error occurs if only one setting is invalid.
All data sent is discarded.
H5-11 = 1