R7E-DC16A
P. 6 / 6
EM-7807-G Rev.4
MODBUS I/O ASSIGNMENTS
ADDRESS
DATA TYPE
DATA
Coil (0X)
1
–
16
Digital Output (discrete output of the basic module)
17
– 32
Digital Output (discrete output of the extension module)
Inputs (1X)
1
–
16
Digital Input (discrete input of the basic module)
17
– 32
Digital Input (discrete input of the extension module)
33
– 48
Reserved (unused)
49
– 64
Module Status
65
– 80
Reserved (unused)
Input Registers (3X)
1
– 4
I
Analog Input
5
– 16
----
Reserved (unused)
17
– 24
F
Analog Input
25
– 48
----
Reserved (unused)
Holding Registers (4X)
1
– 2
I
Analog Output
3
– 16
----
Reserved (unused)
17
– 20
F
Analog Output
21
– 48
----
Reserved (unused)
I : Integer, -1500 – +11500 (-15 – +115%)
F : Floating
Note: DO NOT access addresses other than mentioned above. Such access may cause problems such as inadequate operation.
■
STATUS
Analog input modules (models: R7E-SV4, R7E-TS4, R7E-RS4, R7E-MS4, R7E-CT4E) can show input status of each channel.
Analog output modules (models: R7E-YS2, R7E-YV2) and discrete I/O modules (models: R7E-DA16, R7E-DC16A, R7E-
DC16B) shows ‘0’ at the same address.
0
15
Input 0 (Burnout, input range error)
Input 1 (Burnout, input range error)
Input 2 (Burnout, input range error)
Unused
Input 3 (Burnout, input range error)
Input 0 (ADC error)
Input 1 (ADC error)
Input 2 (ADC error)
Input 3 (ADC error)
:
Unused
Burnout, input range error (≤-15%, ≥+115%)
0 : Normal 1 : Error
ADC error (no response from ADC)
0 : Normal 1 : Error
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