Analog I/O Expansion And I/O Numbering - FATEK M Series User Manual

2-3 Analog I/O Expansion and I/O Numbering

The numeric I/O in M-Series PLC treat 16 single-bit data as one 16-bit numeric data (Word) ranging
from the 0~65535. Since all numeric data of M-Series PLC are stored in the register inside PLC (16-bit width),
therefore numeric I/O is also called register I/O. The Input Register (IR) has 256 Word (R34768 ~ R35023)
for inputs from external numeric input (NI) module, and the Output Register (OR) also has 256 Word
(R35024 ~ R35279) for outputs to external numeric output (NO) module.
Analog Input Modules, Temperature Modules, and Load Cell Modules are of Numeric Input (NI)
Modules which use Input Register (IR) to convey the status. Analog Output Modules are of Numeric output
(NO) modules which output is directly from the Output Register (OR). The Analog Input, Temperature Input,
and Analog Output is of analog voltage or current. Either the magnitude of voltage or current is represented
by the 16-bit value of the corresponding register. The corresponding current/voltage signal of any IR or OR
on the NI/O module is named as a Channel (CH). The channels on the NI module are called numeric input
channels (NI channels) and those on NO module numeric output channels (NO channels). The number of
IR/OR used by NI and NO channels on each module varies depending on the module type or working mode.
The following table lists the numbers of IR and OR used by NI and NO channels on each NI/O module:
Analog I/O Expansion and I/O Numbering
Module NI Channel
Name Label
CH0
CH1
M04AD
CH2
CH3
CH0
CH1
M04ADR
CH2
CH3
M04DA
M04DAR
CH0
CH1
M0202AH
NO Channel Number of
Label IR occupied (Word)
1
1
1
1
2
2
2
2
CH0
CH1
CH2
CH3
CH0
CH1
CH2
CH3
1
1
CH0
CH1
Chapter 2 Expansion of M-Series PLC
Number of
OR occupied (Word)
1
1
1
1
2
2
2
2
1
1
5
M-Series PLC Expansion Module User Manual
Note
The voltage and current inputs
can't be used in the same
channel at the same time.
(Choose only one from V or I)
The voltage and current inputs
can't be used in the same
channel at the same time.
(Choose only one from V or I)
The voltage and current inputs
can't be used in the same
channel at the same time.
(Choose only one from V or I)
The voltage and current inputs
can't be used in the same
channel at the same time.
(Choose only one from V or I)
The voltage and current inputs
can't be used in the same
channel at the same time.
(Choose only one from V or I)
The voltage and current inputs
can't be used in the same
channel at the same time.
(Choose only one from V or I)