Experimental Physics and
Industrial Control System

Tim Mooney <[email protected]> · Thu, 26 Jun 2008 09:41:10 -0500

Likun,  I broke PnPA for n>1 when I added the new array
fields PnCA, in sscan module 2.6.  I'll try to get 2.6.1
out today.

likun wrote:
> Hello:
> 
> I use sscan Record to drive 2 positioners synchronously.
> 
> When the 2 positioners’ scan mode are all TABLE, only positioner 1 can 
> be scanned, it can move position by position as P1PA specified. 
> positioner2 will move to 0, then stop. if I set positioner 2 to LINEAR 
> mode, these 2 can both be scanned, 2 motors can move position by 
> position synchronously.
> 
> I have specified P1PA and P2PA by
> 
> caput ?a IOC:scan1.P1PA 10 1000 2000 3000 4000 5000 6000 7000 8000 9000 
> 10000
> 
> caput ?a IOC:scan1.P2PA 10 1000 2000 3000 4000 5000 6000 7000 8000 9000 
> 10000
> 
>  
> 
> Could you tell me why positioner 2 can’t move position by position like 
> position 1 does when both in TABLE mode? Is there any problem with my db 
> file?
> 
>  
> 
> The db file is like this:
> 
>  
> 
> record(motor, "$(P)m1"){
> 
>     field(SCAN, "Passive")
> 
>     field(DESC,"beijing 5phase motor")
> 
>     field(DTYP,"OMS MAXv")
> 
>     field(DIR,"Pos")
> 
>     field(VELO,"10000")
> 
>     field(VBAS,"4000")
> 
>     field(ACCL,"0.2")
> 
>     field(BDST,"0")
> 
>     field(OUT,"#C0S0@")
> 
>     field(MRES,"8")
> 
>     field(PREC,"0")
> 
>     field(EGU,"um")
> 
>     field(DHLM,"100000")
> 
>     field(DLLM,"-100000")
> 
>     field(VMAX,"15000")
> 
>     field(INIT,"AF")
> 
> }
> 
> record(motor, "$(P)m2"){
> 
>     field(SCAN, "Passive")
> 
>     field(DESC,"beijing 5phase motor")
> 
>     field(DTYP,"OMS MAXv")
> 
>     field(DIR,"Pos")
> 
>     field(VELO,"10000")
> 
>     field(VBAS,"4000")
> 
>     field(ACCL,"0.2")
> 
>     field(BDST,"0")
> 
>     field(OUT,"#C0S1@")
> 
>     field(MRES,"8")
> 
>     field(PREC,"0")
> 
>     field(EGU,"um")
> 
>     field(DHLM,"100000")
> 
>     field(DLLM,"-100000")
> 
>     field(VMAX,"15000")
> 
>     field(INIT,"AF")
> 
> }
> 
>  
> 
> record(sscan, "$(P)scan1") {
> 
>   field(DESC, "Scan 1")
> 
>   field(PINI, "YES")
> 
>   field(PRIO, "HIGH")
> 
>   field(MPTS, "10")
> 
>   field(FPTS, "FREEZE")
> 
>   field(FFO, "USE F-FLAGS")
> 
>   field(P1HR, "100000")
> 
>   field(P1LR, "0")
> 
>   field(P1PR, "0")
> 
>   field(P1PV, "$(P)m1.DVAL")
> 
>   field(P1SM, "TABLE")
> 
>   field(P1AR, "ABSOLUTE")
> 
>   field(P1EU, "um")
> 
>   field(R1PV, "$(P)m1.DRBV")
> 
>   field(P2HR, "100000")
> 
>   field(P2LR, "0")
> 
>   field(P2PR, "0")
> 
>   field(P2PV, "$(P)m2.DVAL")
> 
>   field(P2SM, "TABLE")
> 
>   field(P2AR, "ABSOLUTE")
> 
>   field(P2EU, "um")
> 
>   field(R2PV, "$(P)m2.DRBV")
> 
>   field(NPTS, "10")
> 
>   field(P1SP, "0")
> 
>   field(P1SI, "1000")
> 
>   field(P2SP, "0")
> 
>   field(P2SI, "1000")
> 
>   field(PDLY, "0.1")
> 
> }
> 
>  
> 
> likun
> 
> Beamline Control Group, SSRF, China
> 
> 李坤
> 
> 中国科学院上海应用物理研究所
> 
> 控制组
> 
> 电话：021－33933238
> 
> email：[email protected] <mailto:[email protected]>
> 
>  
> 

-- 
Tim Mooney ([email protected]) (630)252-5417
Beamline Controls & Data Acquisition Group
Advanced Photon Source, Argonne National Lab.

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System