HORNER EXL6 OCS, User Manual

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MAN1032-10-EN_EXL6_UserManual
March 12, 2020 171 | 191
20.4 Modbus Addressing Table for EXL6 Units
To access EXL6 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,
EXL6 Modbus Function Blocks pack several EXL6 register types into each Modbus register
type. Starting addresses of each EXL6 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
EXL6
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