Instruction Manual

Chapter 8: Networked Operations Pointe Controller User Guide
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8.2.2 Types of Modbus data
PointeControl allows mapping to four different Modbus data types: Coils,
Discretes, Analogs, and Registers. The following table shows which variables in
Logic Memory can be mapped to each data type:
Coils
(00001-
09999)
read/write
Discretes
(10001-
19999)
read only
Analogs
(30001-
39999)
read only
Registers
(40001-
49999)
read/write
Inputs
%IX (Bits) X
%IUB (8 Bit Unsigned) X
%IB (8 Bit Signed) X
%IUW (16 Bit Unsigned) X
%IW (16 Bit Signed) X
%IUD (32 Bit Unsigned) X
%ID (32 Bit Signed) X
%IF (32 Bit Real) X
Memory
%MX (Bits) X X X
%MUB (8 Bit Unsigned) X X
%MB (8 Bit Signed) X X
%MUW (16 Bit Unsigned) X X
%MW (16 Bit Signed) X X
%MUD (32 Bit Unsigned) X X
%MD (32 Bit Signed) X X
%MF (32 Bit Real) X X
Outputs
%QX (Bits) X X X
%QUB (8 Bit Unsigned) X X
%QB (8 Bit Signed) X X
%QUW (16 Bit Unsigned) X X
%QW (16 Bit Signed) X X
%QUD (32 Bit Unsigned) X X