Re: Problems about Streamdevice when sending hex command to motor device

[Dirk Zimoch <dirk.zimoch@psi.ch>]

Hi 李姣赛,

When using streamDevice you normally do not want to use aao records and 
arrange the bytes to send in the client (caput). Because this is exactly 
what StreamDevice can do for you.

For example, if in this message
05 30 30 46 46 57 57 30 44 30 30 30 30 30 31 30 37 44 30
the last 4 values 30 37 44 30 stand for 0x07D0, this is simply hex 
formatting and you can use an ao record with the protocol
angle { out 0x05 0x30 0x30 0x46 0x46 0x57 0x57 0x30 0x44 0x30 0x30 0x30 
0x30 0x30 0x31 "%04x"; }
and write 0x07D0 to the ao record. You can also use the scaling 
facilities of the ao record to write the angle in degrees for example.
You can also write the prototol as text instead of hex numbers:

angle { out ENQ "00FFWW0D000001%04x"; }

Maybe the other numbers (for example 00FF),  are not fixed and come from 
other records? In that case look up "redirection" in the StreamDevice 
manual.With %(otherRecord)04x you can use values from multiple records 
in one command.
Dirk


On 24.05.2016 15:52, 李姣赛 wrote:
> Hi,
>
> Recently I try to use Streamdevice to control a motor device. The form
> of the command is hex as follow:
>
> *command
>   Hex-ASC**II                                    & nbsp; *
> vertical init             05 30 30 46 46 57 57 30 44 30 30 30 32 30 31
> 30 37 44 30
> angle                     05 30 30 46 46 57 57 30 44 30 30 30 30 30 31
> 30 37 44 30                      &nbs p;
>                                                                                                    (last four numbers stand for rotation angle: 07D0)
> start                      05 30 30 46 46 57 57 30 4D 30 30 30 32 30 31
> 30 30 30 31
> stop ;        05 30 30 46 46 57 57 30 4D 30 30 30 32 30 31 30 30 30 30
> read                      05 30 30 46 46 57 52 30 44 38 33 34 30 30 31
>
>
>
>          When record type is "aao" or "aai", I send an array angle
> command(e.g.  05 30 30 46 46 57 57 30 44 30 30 30 30 30 31 30 37 44 30)
> and I received the reply value correctly on NewNetAssistant. The reply
> value is "-00FF" as follow:
>
> But, when I test it on streamdevice, there are some errors:
>
> 1. Format convert is not ok:
>
> 2. The reply values are none:
>
> 3. When assigning values on PV values, it get only the former 13 values
> rather than all(in fact, I need assign 19 values to the PV values and it
> loss the last 6 values), as shown on the up picture.
>
>
>
>
>
> When record type is "ao" or "ai", no format convert errors occured, but
> the PV value only accept the first 1 value and return 0:
>
>
>
>
> My fx3uplc.db    fx3uplc.proto    fx3uplc.cmd are as follow:
>
>
>
>
>
>
>
>
>
> I'm figuring out which type should I choose such that the reply values
> are correct. I'm so anxious.
>
> Thanks very much and best wishes!
>
>                         Jiaosai Li, IMPCAS