ifm
Device manual AS-i M4 Gateway Profibus DPV1 (AC1375, AC1376)
2012-02-23
Function
Introduction AS-i data
32
4.2.2
Profiles of AS-i slaves
Configuration data (CDI) of the slaves (slave profiles) ................................................................32
Slave profiles for slaves with combined transaction ....................................................................38
Combined transaction – Use of analogue channels in the gateway depending on
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Configuration data (CDI) of the slaves (slave profiles)
Structure of the slave profile ........................................................................................................32
Description of the IO code for digital slaves.................................................................................33
Description of the ID code (selection) ..........................................................................................33
Description of the extended ID code 1.........................................................................................34
Description of the extended ID code 2.........................................................................................34
Valid combinations IO code / ID code / extended ID code 2 .......................................................35
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The configuration data CDI (=
C
onfiguration
D
ata
I
mage) for single, A and B slaves is stored in a data
word. The structure is shown below and is the same for all slaves.
Structure of the slave profile
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The slave profile has the following structure: S-[IO code].[ID code].[ext. ID code2]
Bits 15...12
Bits 11...8
Bits 7...4
Bits 3...0
XID2
extended ID code 2
3rd figure in the slave profile
(AS-i slave v2.0 = F
hex
*)
XID1
extended ID code 1
is no part of the slave profile
can be changed by the user
(AS-i slave v2.0 = F
hex
*)
ID code
ID code
2nd figure in the slave profile
IO code
I/O configuration
1st figure in the slave profile
Example:
AC2255
4 digital inputs, 2 digital outputs
AS-i profile = S-7.A.E
This results in the following configuration data of the slave:
1110
bin
= E
hex
(e.g.)
0111
bin
= 7
hex
1010
bin
= A
hex
0111
bin
= 7
hex
The corresponding CDI data word is: 11100111 10100111
bin
= E7A7
hex
*) AS-i slaves according to the AS-i specification 2.0 and older do not support the extended ID codes 1
and 2. In the master "F
hex
" is stored for this configuration data.
