Eaton DS7 - Page 208

8 SmartWire-DT
8.9 Programming
204 DS7 Soft starter 09/16 MN03901001Z-EN www.eaton.com
8.9.7.2 SmartWire-DT write response
The DS7 soft starter will respond to a received SmartWire-DT write request
with a SmartWire-DT write response.
The following SmartWire-DT write responses are possible:
• SWD write response(+) – Without data or errors if the DS7 soft starter
has understood the SmartWire-DT write request
• SWD write request(-) – Error. If an error has occurred, the write response
will contain an error. These errors are bus-specific and are explained in
the corresponding sections.
8.9.7.3 SmartWire-DT read request
After receiving a positive SmartWire-DT write response, it is possible to start
polling SmartWire-DT read requests. If a write job has been transmitted
previously, information regarding the write status will be requested; in the
case of a read job, the data will be requested.
8.9.7.4 SmartWire-DT read response
The SmartWire-DT read request will be acknowledged until there is a
SmartWire-DT read response.
The following SmartWire-DT read responses are possible:
• SmartWire-DT read response(-) – Error.
• If there is an error related to addressing (index)
• The DS7-SWD soft starter cannot be reached
• If the response from the DS7-SWD is still pending.
• SmartWire-DT read response(+) – Parameter channel error,
• If the error concerns the PROFIdrive parameter channel.
• SmartWire-DT read response(+) – Without data,
• If the DS7-SWD soft starter has completed the response for a
write job.
• SWD read response(+) – with data,
• If the DS7-SWD soft starter has completed the response for a
read job
The following sections go into the various possible SmartWire-DT read
responses in greater detail.
SmartWire-DT read response(-) – Error
If an error has occurred, the read response will contain an error. These errors
are bus-specific and are explained in the corresponding sections.
￫
For the various possible errors, see ￫ section 8.9.8, “Acyclic
data via PROFIBUS-DP: DS7”.