MODEL: R3-ND1

R3-ND1 SPECIFICATIONS

ES-8353 Rev.20 Page 4/7

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

TRANSMISSION DATA DESCRIPTIONS

■ 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.

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:

0

15

+0

+2

+4

+6

+8

+10

+12

+14

+16

+18

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

Module 1

Module 2

Module 3

Module 4

Module 5

Module 6

Module 7

Begin

Address

Module Status, Error Status and Data Error Status are assigned to +16, +17 and +18 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 turns

to

“1,” and the unmounted slot to “0.”

• Error Status indicates error status for each module as described below. The bit corresponding to such module turns to

“1.”

R3-TSx, R3-RSx, R3-US4 (T/C or RTD input): Input burnout

R3-DA16A: Power input in error or disconnected

R3-YSx: Output current error (e.g. load unconnected)

R3-PC16A: External power supply in error or disconnected

• Data Error Status indicates overrange (R3-US4: out of -10% to +110%; the other types: out of -15% to +115%) status for each