R3-NE1
P. 6 / 8
EM-836 Rev.3
ADDRESS
DATA TYPE
DATA
Coil (0X)
1 – 1024
Digital Output (discrete output)
Inputs (1X)
1 – 1024
Digital Input (discrete input)
1025 – 1040
Module Status
1041 – 1056
Error Status
1057 – 1072
Data Error Status
Input Registers (3X)
1 – 256
I
Analog Input
257 – 768
F
Analog Input
Holding Registers (4X)
1 – 256
I
Analog Output
257 – 768
F
Analog Output
I: Integer, 0 – 10000 (0 – 100%)
F: Floating (32-bit data cannot be accessed using floating addresses.)
Note: DO NOT access addresses other than mentioned above. Such access may cause problems such as inadequate opera-
tion.
•
Module Status indicates whether individual I/O module are mounted or not. The bit corresponding to the mounted slots
turns to “1,” and the unmounted slots to “0.”
•
Error Status indicates error status for each module as described below. The bit corresponding to such modules turns to
“1.”
R3-TSx, R3-RSx, R3-US4: Input burnout
R3-DA16A:
Power input in error or disconnected
R3-YSx:
Output current error (e.g. load unconnected)
•
Data Error Status indicates overrange (R3-US4: out of -10% to +110%; the other types: out of -15% to +115%) status for
each module. The bit corresponding to such modules turns to “1.”
Modbus I/O ASSIGNMENTS
TRANSMISSION DATA ASSIGNMENTS
The DIP SW located at the side of the module specifies each I/O module’s data allocation (occupied data area).
For example, when the data areas are assigned as shown below:
Module 1
4
Module 2
4
Module 3
4
Module 4
1
Module 5
1
Module 6
1
Module 7
1
Then the I/O data are assigned as in the table below:
ADDRESS
POSITION
Input Registers (3X)
Holding Registers (4X)
1 – 4, 257 – 264
Slot 1
5 – 8, 265 – 272
Slot 2
9 – 12, 273 – 280
Slot 3
13, 281 – 282
Slot 4
14, 283 – 284
Slot 5
15, 285 – 286
Slot 6
16, 287 – 288
Slot 7
ADDRESS
POSITION
Coil (0X)
Inputs (1X)
1 – 64
Slot 1
65 – 128
Slot 2
129 – 192
Slot 3
193 – 208
Slot 4
209 – 224
Slot 5
225 – 240
Slot 6
241 – 256
Slot 7
For Coil (0X) and Inputs (1X), addresses 16 times assigned
data areas (Data Allocation Type) are allotted with the
Data Allocation Type ‘1’ and ‘4.’ With ‘8’ and ‘16,’ 64 (4
×
16) are automatically assigned.
