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<== Date ==> <== Thread ==>
Subject: Capturing data from string which is sent by device
From: "정필규"<[email protected]>
To: <[email protected]>
Date: Fri, 02 Dec 2016 17:33:44 +0900

Hi all,


I'm Pilkyu Jung who is working with EPICS in Korea.

When I receive data from device on IOC, I have a problem. Normally device sends data like this "current 3.2 A", "0.1 V" etc. at least I was knowing like that.

but, these days I got a new device which is vacuum ion pump. IOC connected with the device perfectly. However, that device sent data like this.

------------------------------------------------------------------------------------------

2016/12/02 17:09:18.992 169.254.90.249:10001 read 19

\377\372,j`\377\36005 OK 00 6.4

2016/12/02 17:09:19.012 169.254.90.249:10001 read 14

E-10 TORR B1\r\000

2016/12/02 17:09:19.012361 P1 dbPut: 10MeV:TM:ST_x_Pressure_R1(10MeV:TM:ST_x_Pressure_R1.VAL, DBF_STRING, "��,j`��05 OK 00 6.4E-10 TORR B1") failed

------------------------------------------------------------------------------------------

So, I can't get only real data(6.5E-10). It makes me can't capture data in PV. Then when I express data by caget, it just express 0, like this.
------------------------------------------------------------------------------------------
localhost.localdomain[15]# caget 10MeV:TM:ST_x_Pressure_R1
10MeV:TM:ST_x_Pressure_R1      0
------------------------------------------------------------------------------------------

 If I wanna capture only real data(6.4E-10) how can I do? Here is my .db and .proto files.
------------------------------------------------------------------------------------------
record( ai, "$(P)$(R)ST_x_Pressure_R1"){
field( DESC, "Pressure read")
field( DTYP, "stream")
field( INP, "@devvacuum.proto getPRS $(PORT1) $(A)")
field( EGU, "Torr")
field( SCAN, "2 second")
}
------------------------------------------------------------------------------------------
getPRS{
out "~ 05 0b 01 00 ";
in "%e TORR";
}
------------------------------------------------------------------------------------------

Best Regards,
PilkyuJung
Tel.+82-10-9067-3109
Replies:
Re: Capturing data from string which is sent by device Ralph Lange
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