Technical reference section

Bit position registers

Registers in which a number of parameter values are stored are called bit position reg- isters. If you wish to modify the parameter values in these registers directly, you must add up the decimal values of all the bits to be set and enter the result using the ATSn=x command. Since calculating such values is somewhat complicated, we recommend that you use AT commands to modify the values and do not write directly to the regis- ter. However, here is an example of how to do so:

Example:

 

 

S-register S22

 

Bit 7:

Reserved, value is "0".

Bits 6, 5 and 4:

Connection messages (ATXn command).

Bits 3 to 0:

Reserved, value is "0".

You wish to enter the following parameter values:

Bit 7:

 

Reserved, value is "0",

 

 

 

 

 

 

 

Isolated value: binary "0" = decimal "0",

 

 

 

 

 

Positioned value: binary "0 x x x x x x x" = decimal "0".

 

Bits 6, 5 and 4:

Extended connect message,

 

 

 

 

 

 

 

ignore busy signal (ATX2),

 

 

 

 

 

 

 

Isolated value: binary "0 1 0" = decimal "2",

 

 

 

 

Positioned value: binary "x 0 1 0 x x x x" = decimal "32".

 

Bits 3 to 0:

 

Reserved, value is "0",

 

 

 

 

 

 

 

Isolated value: binary "0 0 0 0" = decimal "0",

 

 

 

 

Positioned value: binary "x x x x 0 0 0 0" = decimal "0".

 

Decimal input and binary storage:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bit #

7

 

6

 

5

4

 

3

 

2

1

0

 

 

 

 

 

 

 

 

 

 

 

 

 

Binary

0

 

0

 

1

0

 

0

 

0

0

0

 

 

 

 

 

 

 

 

 

 

 

 

 

Decimal

(128)

 

(64)

 

32

(16)

 

(8)

 

(4)

(2)

(1)

 

 

 

 

 

 

 

 

 

 

Enter the decimal total for 0+0+32+0+0+0+0+0=32.

 

 

 

Command:

 

ATS22=32

 

 

 

 

 

 

 

 

64

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Siemens M1 Bit position registers, You wish to enter the following parameter values, Decimal input and binary storage
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