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8 Communications Functions
Multi-function Compact Inverter 3G3MX2-V1 User’s Manual (I585-E1)
8
-7 Mo
dbu
s Map
p
ing
Fu
nct
ion
8
8-7
-2 Modbus Mapping F
unction Settings
To use the Modbus mapping function, set the Modbus Mapping Function Selection (P200) to 01 (Mod-
bus mapping enabled) and set each Modbus mapping parameter.
• Each number of 1 to 10 in Modbus Mapping External Register, Modbus Mapping External Register
Type, Modbus Mapping Scaling, and Modbus Mapping Internal Register corresponds to one set of
Modbus mapping function settings, respectively.
• In the Modbus Mapping External Register 1 to 10 (P201 to P210), set the register address to receive
commands from external communications. When this is set to 0000, the command will not be pro-
cessed.
• In the Modbus Mapping External Register Type 1 to 10 (P211 to P220), set the data type used for the
external register on the external communications side.
• In the Modbus Mapping Scaling 1 to 10 (P221 to P230), set the scale factor for receiving data from
external communications and capturing it into the inverter. Conversely, each of these settings pro-
vides a subtraction factor when internal data is output to external communications.
• In the Modbus Mapping Internal Register 1 to 10 (P301 to P310), set the Modbus register address
inside the inverter to process commands from external communications.
For the Modbus register addresses of the inverter, refer to
8-9 Modbus Communication Data Lists
on
page 8-37.
• The Modbus mapping function is intended for 16-bit single-word data only and does not support dou-
ble-word data and coils. Therefore, the main information with double-word data is compressed into
single-word data to be used in the Modbus mapping function.
Refer to the register list provided in
8-7-3 Compressed Single-word Registers
on page 8-26.
• After setting or changing the Modbus mapping function, be sure to cycle the inverter power supply.
Until the power supply is cycled, the inverter does not apply the changes to the Modbus mapping
function settings.
• If the Modbus communication function is executed with any erroneous Modbus function setting, the
inverter will return an exception response to the command. In this case, check the exception code for
the exception response.
For details on exception codes, refer to
8-7-4 Troubleshooting for Modbus Mapping Function
on page
8-28.
8-7-2
Modbus Mapping Function Settings
Parameter No.
Function name
Data
Default data
Unit
P200
Modbus Mapping Function
Selection
00: Standard Modbus address
00
−
01: Modbus mapping enabled
P201 to P210
Modbus Mapping External
Register 1 to 10
0000 to FFFF hex
0000
−
P211 to P220
Modbus Mapping External
Register Type 1 to 10
00: Unsigned
00
−
01: Signed
P221 to P230
Modbus Mapping Scaling 1
to 10
0.001 to 65.535
1.000
−
P301 to P310
Modbus Mapping Internal
Register 1 to 10
0000 to FFFF hex
0000
−
Summary of Contents for SYSDRIVE MX2 SERIES
Page 1: ...Multi function Compact Inverter MX2 Series Type V1 User s Manual I585 E1 01 3G3MX2 A V1 ...
Page 32: ...CONTENTS 29 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 108: ...2 Design 2 48 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 176: ...4 Parameter List 4 42 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 538: ...10 Troubleshooting 10 22 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 598: ...12 Options 12 50 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 614: ...Appendices A 16 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 ...
Page 615: ...I 1 Multi function Compact Inverter 3G3MX2 V1 User s Manual I585 E1 I Index ...