5-7
5 Modbus Connection
NB-series Programmable Terminals Host Connection Manual (V108)
5-4 Supported Registers
5
5-4 Supported Registers
Modbus RTU
Modbus RTU Modicon_BE
Note 1 The value which endian of 4x is reversed by the unit of Word is set to 5x.
Example: When 0x1234 is stored to 4X, 0x3412 is set to 5X.
2 The values which endian of 4X and 5X is reversed by the unit of Double Word are set to 4X-DINV and 5X-
DINV, respectively.
Example: When 0x12345678 is stored to 4X, 0x56781234 is set to 4X-DINV.
Modbus RTU Extend
Note 1 The value which endian of 4X is reversed by the unit of Word is set to 5X.
Example: When 0x1234 is stored to 4X, 0x3412 is set to 5X.
2 The values which endian of 3X and 4X is reversed by the unit of Double Word are set to 3X-DINV and 4X-
DINV, respectively.
Example: When 0x12345678 is stored to 3X, 0x56781234 is set to 3X-DINV.
3 When connecting to E5CC/E5EC, use 4X for the address since all addresses are handled as holding reg-
ister.
Device Bit Address Word Address Format Notes
System Internal/External Output
Nodes
0X 1-65535 ------ DDDDD
System Internal/External Input
Nodes
1X 1-65535 ------ DDDDD
Analog Input Data Registers ------ 3X 1-65535 DDDDD
Data Registers ------ 4X 1-65535 DDDDD
Device Bit Address Word Address Format Notes
System Internal/External Output
Nodes
0X 1-65535 ------ DDDDD
System Internal/External Input
Nodes
1X 1-65535 ------ DDDDD
Analog Input Data Registers ------ 3X 1-65535 DDDDD
Data Registers ------ 4X 1-65535 DDDDD
Data Registers ------ 5X 1-65535 DDDDD
Data Registers ------ 4X-DINV 1-65535 DDDDD 32 bit device
Data Registers ------ 5X-DINV 1-65535 DDDDD 32 bit device
Device Bit Address Word Address Format Notes
System Internal/External Output
Nodes
0X 1-65535 ------ DDDDD
System Internal/External Input
Nodes
1X 1-65535 ------ DDDDD
Analog Input Data Nodes 3X_bit
1.00-65535.15
------ DDDDD.DD
Data Nodes 4X_bit
1.00-65536.15
------ DDDDD.DD
4X Single Write Data Nodes 6X_bit
1.00-65535.15
------ DDDDD.DD
Analog Input Data Registers ------ 3X 1-65535 DDDDD
Data Registers ------ 4X 1-65536 DDDDD
Data Registers ------ 5X 1-65535 DDDDD
4X Single Write ------ 6X 1-65535 DDDDD
Data Registers ------ 3X-DINV 1-65535 DDDDD 32 bit device
Data Registers ------ 4X-DINV 1-65535 DDDDD 32 bit device
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