Chapter 5 Deployment Command interface
Manual VIPA System 300V
5-34
HB130E - CP - RE_343-2AH10 - Rev. 08/41
Read_AS-i-Slave_Parameter_String
With this call a parameter string complying with AS-i slave profile 7.4 may
be read from the AS-i slave with the AS-i slave address specified in the
send buffer. The AS-i master supplies up to 221bytes of response data.
The number of parameter bytes actually sent by the AS-i slave is signaled
by the AS-i master in byte 0 of the receive buffer (number of parameter
bytes). If the AS-i slave sends a string longer than 220bytes, the AS-i
master aborts the string transfer and terminates the job with an error. The
received data are then not made available to the user program.
As long as the string transfer is active, there is no user/analog data
exchange with the addressed AS-i slave.
Structure of the Job Data in the Send buffer
Byte
Meaning
0
Command number: 41h
1 Slave
address
Structure of the Job Data in the Receive buffer
Byte
Meaning
0
Number of the parameter bytes
1
String byte (1)
2
String byte (2)
... ...
String byte (n-1)
...
String byte (n)
Maximum value for n=220
Description