MAN1256-05-EN_EXLW_XLWP_UM
November 10, 2021
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20.4 Modbus Addressing Table for EXLW/XLW PRIME Units
To access EXLW/XLW PRIME registers, a Modbus Master must be configured with the
appropriate register type and offset. This is usually accomplished with one of two methods:
Method 1: The first method uses Traditional Modbus References, in which the high digit
represents the register type and the lower digits represent the register offset (starting with
Register 1 for each type). Since only four register types can be represented in this manner,
EXLW/XLW PRIME Modbus Function Blocks pack several EXLW/XLW PRIME register types into
each Modbus register type. Starting addresses of each EXLW/XLW PRIME register type are
shown in the Traditional Modbus Reference column of the Table 20.1.
Method 2: The second method requires the Modbus Master to be configured with a specific
Modbus Command and Modbus Offset.
Table 20.1
–
Modbus Master Mapping
EXLW/XLW
PRIME
Reference
Maximum
Range
Trad. Modbus
Reference
(5 Digits)
Expanded
Modbus Ref.
(6 Digits)
Modbus Commands
Modbus
Offset
%I1
2048
10001
010001
Read Input Status (2)
0
%IG1
256
13001
013001
3000
%S1
256
14001
014001
4000
%K1
5
15001
015001
5000
%Q1
2048
00001
000001
Read Coil Status (1)
Force Coil (5)
Force Multiple Coils (15)
0
%M1
2048
03001
003001
3000
%T1
2048
06001
006001
6000
%QG1
256
09001
009001
9000
%AI1
512
30001
030001
Read Input Register (4)
0
%AIG1
32
33001
033001
3000
%SR1
256
34001
034001
4000
%AQ1
512
40001
040001
Read Holding Register (3)
Load Register (6)
Load Multiple Registers (16)
0
%R1
2488
40513
040513
512
%R1
2048
43001
043001
3000
%AQG1
32
46001
046001
6000
%R1
9999
--
410001
10000