IDL 101
COMMUNICATION
60
HB_IDL101_E_V222.doc
Gantner Instruments Test & Measurement GmbH
10.1.4. Output Format
The user can preset the format in which the data shall be output via the bus with the
Configuration Software ICP100.
The data logger adjusts the data formats accordingly and makes sure that the data are available in the selected unit.
For the transmission in the ASCII- and PROFIBUS-format, the format settings listed in table 10.2 and 10.3 can be
chosen. At the transmission in the MODBUS-format the output format (integer or real) will automatically be confirmed
(Table 10.4). The coding of a real value in the MODBUS- and PROFIBUS-format is as follows:
Coding of the real value:
x = s ee...ee mmm.....mmm
Value:
(-1)
s
·2
e-127
·1,m
# : <1> <- 8 -> <----- 23 ----->
Value (0 < e < 255):
(-1)
S
*
2
e-127
*
1,m
Value
(e=0): (-1)
S
*
2
e-126
*
0,m
format settings
range of values
unit
dependent on sensor
field length
1 . . . . . . . . . . . . . . . . . . 8
decimals
0 . . . field length-1 (max 6)
Table 10.2 Format settings for transmission in the ASCII-format
format settings
length
range of values
b o o l
1 byte
(dec 0: FALSE) and (dez 255: TRUE)
Integer 2
byte
(dec - 32768)
≤
i
≤
(dec +32767)
r e a l
4 byte
(dec - 2
129
)
≤
x
≤
(dec + 2
129
)
Table 10.3 Format settings for transmission in the PROFIBUS-format
format settings
length
range of values
Integer 2
byte
(dec - 32768)
≤
i
≤
(dec +32767)
r e a l
4 byte
(dec - 2
129
)
≤
x
≤
(dec + 2
129
)
Table 10.4 Format settings for transmission in the MODBUS-format
Example
: The value 50.3094 cm shall be displayed.
Transmission in the ASCII-format:
decimals
field length 6
field length 7
field length 8
0
_ _ _ _ 5 0
_ _ _ _ _ 5 0
_ _ _ _ _ _ 5 0
1
_ _ 5 0 . 3
_ _ _ 5 0 . 3
_ _ _ _ 5 0 . 3
2
_ 5 0 . 3 1
_ _ 5 0 . 3 1
_ _ _ 5 0 . 3 1
3
5 0 . 3 0 9
_ 5 0 . 3 0 9
_ _ 5 0 . 3 0 9
4
E . 3 0 9 4
5 0 . 3 0 9 4
_ 5 0 . 3 0 9 4
5
-
E . 3 0 9 4 0
5 0 . 3 0 9 4 0
6
-
-
E . 3 0 9 4 0 0
Table 10.5 Output formats for transmission in the ASCII-format ("_":blank).