Bits and words associated with the AS-i function
Explicit exchange objects: Channel status %MW4.0.2:Xj to %MW4.0.22:Xj
At a Glance These word type objects provide information on all the slaves present on the AS-i
Bus.
Description of the word
%MW4.0.2
Address
%MW4.0.2:X0
%MW4.0.2:X1
%MW4.0.2:X2
%MW4.0.2:X3
%MW4.0.2:X4
%MW4.0.2:X5
%MW4.0.2:X6
%MW4.0.2:X7
The table below gives the meaning of the different bits of the word
Function
Standard status
%MW4.0.2
Meaning when Xj = 1
Reserved
One or several slaves in error.
Line error (supply switched off or terminal block error).
Physical configuration different to the PL7 configuration.
Internal software error.
Reserved
Error communicating with the processor.
Parametering or command configuration error.
.
Description of the word
%MW4.0.3
Address
%MW4.0.3:X0
%MW4.0.3:X1
%MW4.0.3:X2
%MW4.0.3:X3
%MW4.0.3:X4
%MW4.0.3:X5
%MW4.0.3:X6
%MW4.0.3:X7
%MW4.0.3:X8
The table below gives the meaning of the different bits of the word
Function
AS-i specific status
Meaning when Xj = 1
Correct configuration.
Slave 0 present.
Automatic addressing active.
Reserved.
Reserved.
Reserved.
AS-i supply failed.
Offline phase active.
Reserved.
%MW4.0.3
.
154
TLX DS 37 PL7 xxE
Bits and words associated with the AS-i function
Description of the words
%MW4.0.4 and
%MW4.0.5
Address
%MW4.0.4:Xj
%MW4.0.5:Xj
The table below gives the meaning of the different bits of the words
%MW4.0.5
.
Function Meaning when Xj = 1
List of detected slaves LDS j = 0 to 15 -> respectively slave 0 to 15 detected.
j = 0 to 15 -> respectively slave 16 to 31 detected.
%MW4.0.4
and
Description of the words
%MW4.0.6 to
%MW4.0.21
Address
%MW4.0.6 to
%MW4.0.21
The table below gives the meaning of the different bits of the words
%MW4.0.21
.
%MW4.0.6
to
Function
I/O and ID configuration for all detected slaves
Meaning
Words 6 to 21 -> respectively devices 0-1, 2-3, ..., 28-29, 30-31.
The least significant bytes relate to the slaves with an even address.
The most significant bytes relate to the slaves with an odd address.
For each byte: bit 0-3 = configuration code for input/output (I/O) channels, bit 4-7 = identification code (ID).
Description of the word
%MW4.0.22
Address
%MW4.0.22
The table below gives the meaning of the word
Function
Parametering data of last slave parameterized.
%MW4.0.22
.
Meaning
Contains the reply (value of the parameters sent) from the last slave parameterized. This allows you to verify via PL7 that the slave has received them correctly.
TLX DS 37 PL7 xxE
155
