MODEL: R7M

R7M SPECIFICATIONS

ES-7803 Rev.26 Page 7/39

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

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

■ STATUS

Analog input modules (models: R7M-SV4, R7M-TS4, R7M-RS4, R7M-MS4, R7M-CT4E) can show input status of

each channel.

Analog output modules (models: R7M-YS2, R7M-YV2),

discrete I/O modules (models: R7M-DA16x, R7M-DCx, R7M-DAC16x, R7M-RR8),

totalized pulse input module (model: R7M-PA8) shows ‘0’ at the same address.

DATA CONVERSION

I 0 – 100% DATA CONVERSION

Analog input data is converted into digital representations of 0 – 100% proportional to each scaled range. The converted %

values are multiplied by 100 and expressed in 16 bits.

Overrange input is possible from -15 to +115% of the nominal range. When the signal exceeds the limit, the data is fixed at

-15% or +115% respectively. Negative value is represented in 2 s complements.

• Input Range 0 – 5 V DC

≤ -0.75 V

0 V

5 V

≥ 5.75 V

Input Value

-15%

0%

100%

115%

Input %

-1500

0

10000

11500

Converted Data, Decimal

FA24

0

2710

2CEC

Converted Data, Hex

Analog output is converted in the reverse order of the input data. The output range 0 – 5 V DC is expressed as 10000 at

5.0 V (100%) and 0 at 0 V (0%).

11500 (2CEC)

10000 (2710)

-0.75

-1500 (FA24)

5.0

5.75

0

(V)