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Digital in- and outputs

Picture 7.3.3 Control digital inputs by software (di.01/di.02)

Terminal strip

SY.50 Bit 0 = 1

di.01

di.02

1 128 256 512 1024 2048

128

256

512

1024

2048

Internal inputs

As shown in picture 7.3.3 it can be selected with di.01 whether the inputs are switched by terminal strip (def-

ault) or via parameter di.02 . The two parameters are bit-coded, i.e. in accordance with the following table the

associated value of the input must be entered. With several inputs the sum is to be formed.

(Exception:controlreleasemustalwaysbebridgedattheterminalstrip).

Table terminal status

Bit Decimal value Input Terminal

0 1 ST (prog. input „control release/ reset“) X2A.12

1 2 RST (prog. input „reset“) no

2 4 F (prog. input) no

3 8 R (prog. input) no

4 16 I1 (prog. input 1) X2A.13

5 32 I2 (prog. input 2) X2A.14

6 64 I3 (prog. input 3) X2A.15

7 128 I4 (prog. input 4) X2A.16

8 256 IA (internal input A) no

9 512 IB (internal input B) no

10 1024 IC (internal input C) no

11 2048 ID (internal input D) no

Example:ST,FandIBarecontrolled, displayed value = 1+4+512 = 517

3.4.4 Input terminal state (ru.21), internal input state (ru.22)

The input terminal state (ru.21) displays the logical levels at the input terminals. It is irrelevant whether the

inputs are internally active or not. If a terminal is controlled, the appropriate decimal value according to table

„Terminal status“ is output. With several active terminals the sum of the decimal values is output.

The internal input state (ru.22) displays the logical state of the digital inputs set internally for processing. If an

input is set, the appropriate decimal value according to the table 7.3.1 is output. If several inputs are set, the

sum of the decimal values is output.

KEB combivert R6-S Applications Manual

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