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MODBUS I/O ASSIGNMENTS
Coil (0X)
Inputs (1X)
Input Registers (3X)
Holding Registers (4X)
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 operation.
• 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:
R3-YSx:
• 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".
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:
Input Registers (3X)
Holding Registers (4X)
ADDRESS
DATA TYPE
1 – 1024
1 – 1024
1025 – 1040
1041 – 1056
1057 – 1072
1 – 256
I
257 – 768
F
1 – 256
I
257 – 768
F
Power input in error or disconnected
Output current error (e.g. load unconnected)
ADDRESS
POSITION
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
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: info@m-system.co.jp
Digital Output (discrete output)
Digital Input (discrete input)
Module Status
Error Status
Data Error Status
Analog Input
Analog Input
Analog Output
Analog Output
Coil (0X)
Inputs (1X)
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.
TR3EX
DATA
ADDRESS
POSITION
1 – 64
65 – 128
129 – 192
193 – 208
209 – 224
225 – 240
241 – 256
EM-8632
Slot 1
Slot 2
Slot 3
Slot 4
Slot 5
Slot 6
Slot 7
P. 5 / 7
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