Omron SYSDRIVE MX2 SERIES, Руководство пользователя

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8 Communications Functions
8 - 24 Multi-function Compact Inverter 3G3MX2-V1 User’s Manual (I585-E1)
8-7 Modbus Mapping Function
The 3G3MX2-V1 Series Inverter newly has the Modbus mapping function.
This Modbus mapping function can change up to 10 register addresses.
For example, when designing replacement, you can match the inverter-side register addresses without
changing the communications program.
It is also possible to set the data type, scale, and endian (byte order) of communication data according
to your application.
The Modbus mapping function can set up to 10 register addresses.
This function processes the command, which is sent to the external register address specified from the
external communications, for data in the address set in Modbus Mapping Internal Register.
Even if the data are different between the external and internal registers, it is possible to adjust data by
the settings of Modbus Mapping External Register Type and Modbus Mapping Scaling.
*1. The internal register (Modbus register inside the inverter) that overlaps with the external register setting is dis-
abled.
To use that internal register, set an external register not to overlap or set a different Modbus mapping function
to access from a different address.
8-7-1 Operation of Modbus Mapping Function
Communications
terminal
Modbus mapping function settings (P200 = 01: Enabled)
External register
P201
Data type
P211
Scale
P221
Internal register
P301
1005 hex 01: Signed 2.000 1001 hex
Command from external
communications
Address 1005 hex
Command 10 hex
(Write to register)
Data 0001 hex
Inside inverter
External
register (Connection process)
Internal
register
··· …………………………… ···
1000 hex …………………………… 1000 hex
1001 hex …………………………… 1001 hex
1002 hex …………………………… 1002 hex
1003 hex …………………………… 1003 hex
1004 hex …………………………… 1004 hex
1005 hex ……………………………
×
1005 hex
*1
1006 hex …………………………… 1006 hex
··· …………………………… ···
×
Scale
Data type
conversion