User`s manual

Data Management and I/O Words
100
I/O Words and ID Code
Function mode After connecting the supply voltage, the ID code of the I/O unit are automatically
read from the bus adapter. The ID code provides the INTERBUS master with I/O
type data (inputs and/or outputs) and the number of words required by the I/O
module in the INTERBUS telegram. After the INTERBUS master has received and
evaluated the ID codes from the I/O modules, it automatically begins data exchange
in real time.
The length information is given in I or O words, the higher of the two values decides
the I/O module position in the INTERBUS telegram.
The following values are possible: 1 ... 10, 12, 14, 16, 24 or 32 words.
Example for
determining the
ID code:
Example:
The ID code for the 170 ADM 350 10 is 0103 hex.:
01 = Length information states: the module requires a word for data exchange
(I and/or O word)
03 = Module type states: the module has inputs and outputs
Word count and
ID code for
analog I/O units
Word count and ID code (analog I/O units)
Name Function I words O words ID code
170 AAI 030 00 8 input channels 8 2 0633 hex
0651 dec
170 AAI 140 00 16 input channels 16 4 1233 hex
1851 dec
170 AAI 520 40 4 input channels, RTD,
thermocouple
4 4 0433 hex
0451 dec
170 AAO 120 00 4 output channels 0 5 0531 hex
0549 dec
170 AAO 921 00 4 output channels 0 5 0531 hex
0549 dec
170 AMM 090 00 4 inputs, 2 outputs (digital)
4 input channels, 2 output channels
(analog)
5 5 0531 hex
0551 dec
170 ANR 120 90 8 inputs, 8 outputs (digital)
6 input channels, 4 output channels
(analog)
12 12 1633 hex
2251 dec