Operating Instructions – Electronic Motor DRC.-..-DAC
157
9
Transmitting individual parameters via AS-Interface
Communication with AS-Interface Double Slave GLK31A
CTT2 services
The GLK31A double slave supports the following acyclical services and the correspond-
ing response telegrams of the CTT2 protocol:
To check the communication between the AS-Interface master and the AS-Interface
slave, SEW-EURODRIVE recommends to read out the "ID object" with the "Read
request" service.
The indexes 0x00
hex
"ID object" and 0x01
hex
"Diagnosis" are only permitted in conjunc-
tion with the CTT2 service "Read request" 0x10
hex
.
For parameterization of the DRC inverter, use the "Exchange request" service.
Alternatively, you can use the "Write request" and "Read request" services for parame-
terization. However, you have to program fixed wait times when programming the
higher-level controller to compensate for transmission times for parameters.
The following chapters describe the individual CTT2 services.
A prerequisite for the transmission of DRC parameters using CTT2 services is a basic
knowledge of the CTT2 and MOVILINK
®
protocols.
Code
Service/
response telegram
Followed by
Recommended use
0x10
hex
16
dec
Read request
Index, length
Reading out:
•
Index "0x00
hex
" = "ID object"
•
Index "0x01
hex
" = "diagnosis"
0x50
hex
80
dec
Read response OK
Data
0x90
hex
144
dec
Read response not OK
Standard error code
0x11
hex
17
dec
Write request
Index, length, data
0x51
hex
81
dec
Write response OK
–
0x91
hex
145
dec
Write response not OK
Standard error code
0x1D
hex
29
dec
Exchange request
Index
Length when reading
Length when writing
Read data
Written data
Parameterization
DRC inverter
•
Index "0x02
hex
" = "MOVILINK
parameter channel"
0x5D
hex
93
dec
Exchange response OK
Read data
0x9D
hex
157
dec
Exchange response not OK
Error object
