ALTUS Nexto NX3004 User Manual

4. Configuration
104
Figure 4-31. MODBUS Data Type
Configuration
Description
Default
Value
Options
Value Variable
Symbolic variable name
-
Name of a variable declared in a program or
GVL
Data Type
MODBUS data type
-
Coil Write (1-bit)
Coil Read (1-bit)
Holding Register Write (16-bit)
Holding Register Read (16 bit)
Holding Register – AND Mask (16-bit)
Holding Register – OR Mask (16-bit)
Input Register (16-bit)
Input Status (1-bit)
Data Start
Address
Initial address of the MODBUS
data
-
1 to 65536
Data Size
Size of the MODBUS data
-
1 to 65536
Data Range
The data range address
configured
-
-
Table 4-69. MODBUS Client Mappings Configuration
Notes:
Value Variable: this field is used to specify a symbolic variable in MODBUS relation.
Data Type: this field is used to specify the data type used in the MODBUS relation.
Data type
Size [bits]
Description
Coil Write
1
Write digital output
Coil Read
1
Read digital output
Holding Register Write
16
Write analog output
Holding Register Read
16
Read analog output
Holding Register- AND
Mask
16
AND mask used in “write analog output”
Holding Register- OR Mask
16
OR mask used in “write analog output”
Input Register
16
Analog input that can only be read
Input Status
1
Digital input which can only be read
Table 4-70. Data types supported in MODBUS Client

ALTUS Nexto NX3004 Specifications

General

Brand	ALTUS
Model	Nexto NX3004
Category	Processor
Language	English