MODEL: R3-ND2

R3-ND2 SPECIFICATIONS

ES-8381 Rev.20 Page 4/7

https://www.m-system.co.jp/

TRANSMISSION DATA DESCRIPTIONS

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 figures below:

Module Status, Error Status and Data Error Status are assigned to +32, +33 and +34 respectively.

Each module can handle either input or output data. Input and output cannot be mixed in one module.

Input data from the master device is transferred to the module's output data area. The master device can read from the output

data area the data it has set.

• Module Status indicates whether individual I/O modules are mounted or not. The bit corresponding to the mounted slot

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

0

15

+0

+2

+4

+6

+8

+10

+12

+14

+16

+32

+34

Module 1

Module 2

Module 3

Module 4

Module 5

Module 6

Module 7

Module Status

Error Status

Data Error Status

Begin

Address

0

15

+0

+2

+4

+6

+8

+10

+12

+14

+16

+31

Module 1

Module 2

Module 3

Module 4

Module 5

Module 6

Module 7

Begin

Address

■ OUTPUT DATA

The figure below shows the allocation of the data sent from

the network module to the master.

■ INPUT DATA

The figure below shows the allocation of the data sent from

the master to the network module.

R3-PC16A:

External power supply in error or disconnected