2 commands acc. to profile s-7.4/s-7.5, 1 overview of the commands, 2 wr_74_75_param – EUCHNER AS-i 3.0 Command Interface User Manual
Page 16: Commands acc. to profile s-7.4/s-7.5, Overview of the commands, Wr_74_75_param
AS-i 3.0 Command Interface
Commands of the Command Interface
Subject to reasonable modifications due to technical advances
Id.-No.: 102875 Issue date - 3.12.2007
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16
4.1.9
Write 16 channels 16-bit slave out. Data (OP_WR_16BIT_IN_CX)
With this command, the 16 channels of the 16-bit input-data for slaves with suc-
cessive addresses according to slave profile (S-7.3, S-7.4, S-7.5, S-7.A.8, S.A.9,
S-7.A.A) can be written.
4.2
Commands acc. to Profile S-7.4/S-7.5
4.2.1
Overview of the commands
4.2.2
WR_74_75_PARAM
With this function the parameter string of a slave according to profile S-7.4 is being
written or the data transfer with a slave according to profile S-7.5 is started.
By a slave according to profile 7.5, data have to be registered into the buffer in the
same form, as they have to be sent by AS-i.
Since the string can be longer than the command interface, it is written into the
buffer in parts at first and then it is transferred to the slave.
n is the length of the part of the string which should be written into the buffer from
index i on.
Request
Byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1
4D
16
2
T
circuit
3
1. slave
4
1. channel
5
1. slave, 1. channel, high byte
6
1. slave, 1. channel, low byte
…
…
35
16. channel, high byte
36
16. channel, low byte
Response
Byte
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
1
4D
16
2
T
result
Values for command
see page
Command
Value
Meaning
Req
Len
Res
Len
WR_74_75_PARAM
5A
16
write S-7.4/S-7.5-slave parameter
≥6
2
RD_74_75_PARAM
5B
16
read S-7.4/S-7.5-slave parameter
4
≥3
RD_74_75_ID
5C
16
read S-7.4/S-7.5-slave ID string
4
≥3
RD_74_DIAG
5D
16
read S-7.4/S-7.5-slave diagnosis
string
4
≥3