3 data types 10, Data types – West Control Solutions KS 800 ISO1745 Interface Manual User Manual

Page 10

Advertising
background image

3.3

Data types

Data values are classified according to data types for transmission. Only characters which can be represented

in ASCII are permitted.

w

BCD

Floating Point number in BCD-ASCII format,

Range: -9999 ... -0.001, 0, 0.001 ... 9999

optional: negative polarity sign and decimal point permitted; exponent representation not permitted.

KS800 controllers with an accuracy of max. 4 digits. With received data, number of digits and decimal

point position are not fixed and depend on the FP resolution. The values are not rounded off.

Switch-off value for BCD data is : -32000

w

INT

positive integer number in ASCII format

Range: 0 ... 32767

Range with configuration words: 0000 ... 9999 (Ä page 14)

Exception: switch-off value ‘-32000’

w

ST1

Status, bit-oriented, 1 byte length

Range: 00H ... 3FH, transmitted: 40H...7FH

Only 6 bits for transmission of information can be used, i.e. bit 0...5 (LSB = bit 0). Bit 6 must always be

set to ‘1’, in order to avoid confusion with the control characters. Bit 7 contains the parity bit.

w

SYS16

System identification number, 16 bytes

Format: xx,yyyyyyyy,zzzz (Ä page 11)

Message structure

9499 040 49411

10

990924

Advertising