Hej Mark and Heinz,
If I command the motor to -10 mm,
and it runs into the limit switch at -2.970
The we see that .VAL stays at -10 mm, (where the motor should have gone)
and .RBV is -2.970 (where the motor is)
So the “correlation” is lost - on purpose.
Thats my understanding.
HTH
/Torsten
> On 16 Nov 2021, at 18:09, Mark L Rivers via Tech-talk <tech-talk at aps.anl.gov> wrote:
>
> Hi Heinz,
>
> It looks like you are using an encoder (UEIP=Yes), and your encoder readback (REP) is 0. When the motor record hits a limit switch I believe it sets the DVAL to the readback value.
>
> Mark
>
>
> From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of Heinz Junkes via Tech-talk <tech-talk at aps.anl.gov>
> Sent: Tuesday, November 16, 2021 10:59 AM
> To: EPICS Tech Talk <tech-talk at aps.anl.gov>
> Subject: Understanding Motor Record
>
> I am having problems with Motor-Record right now.
> I am using Epics 7 and the latest MotorRecord
> (master: https://github.com/epics-modules/motor)
>
> When I reach a Limit - Switch, then there is no
> correlation between RMP and DVAL/VAL anymore?
>
> RMP : 1361 vs. DVAL: 0 and VAL : 0 ??
>
> I'm using the same hardware as I have for 10 years (Oms MAXv), only
> now I have Epics7 with the new motor-record in use.
>
> I also have the feeling that something with the conversion of the
> EGU and the direction etc. does not fit.
> But unfortunately can not specify yet because "somehow some is wrong”
>
> Danke Heinz
>
> > dbpr FHIFEL:M11PH,10
> ACCL: 1 ACKS: NO_ALARM ACKT: YES ADEL: 0
> ALST: 0 ASG : ASP : PTR 0x0 ATHM: 0
> BACC: 1 BDST: 0 BKLNK: ELL 0 [0x0 .. 0x0]
> BKPT: 00 BVEL: 4.5 CARD: 0 CBAK: PTR 0x15f9bf8
> CDIR: 1 CNEN: Disable DCOF: 0
> DESC: M1 Pinhole OMS_Z DHLM: 140 DIFF: 0
> DINP: CONSTANT DIR : Pos DISA: 0 DISP: 0
> DISS: NO_ALARM DISV: 1 DLLM: -140 DLY : 0
> DMOV: 1 DOL : CONSTANT DPVT: PTR 0x15f9c18 DRBV: 0
> DSET: PTR 0x462d34 DTYP: OMS MAXv DVAL: 0 EGU : mm
> ERES: 1.171875e-04 EVNT: FLNK: CONSTANT FOF : 0
> FOFF: Frozen FRAC: 1 HHSV: NO_ALARM HIGH: 0
> HIHI: 0 HLM : 140 HLS : 1 HLSV: NO_ALARM
> HOMF: 0 HOMR: 0 HOPR: 0 HSV : NO_ALARM
> HVEL: 4.5 ICOF: 0 IGSET: 0 INIT:
> JAR : 7.5 JOGF: 0 JOGR: 0 JVEL: 4.5
> LCNT: 0 LDVL: 0 LLM : -140 LLS : 0
> LLSV: NO_ALARM LOCK: NO LOLO: 0 LOPR: 0
> LOW : 0 LRLV: 0 LRVL: 0 LSET: PTR 0x1548258
> LSPG: Go LSV : NO_ALARM LVAL: 0 LVIO: 0
> MDEL: 0 MIP : 0 MISS: 1
> MLIS: ELL 148 [0x2190a58 .. 0x177254c8] MLOK: 01 54 f4 10 MLST: 0
> MMAP: 0 MOVN: 0 MRES: 1.171875e-04 MSTA: 7
> NAME: FHIFEL:M11PH NMAP: 0 NSEV: NO_ALARM NSTA: NO_ALARM
> NTM : YES NTMF: 2 OFF : 0 OMSL: supervisory
> OUT : VME_IO #C0 S2 @ PACT: 0 PCOF: 0
> PHAS: 0 PINI: NO POST: PP : 0
> PPN : PTR 0x0 PPNR: PTR 0x0 PREC: 3 PREM:
> PRIO: LOW PROC: 0 PUTF: 0 RBV : 0
> RCNT: 0 RDBD: 0.1 RDBL: CONSTANT RDES: PTR 0xcbd400
> RDIF: 0 REP : 0 RHLS: 1 RINP: CONSTANT
> RLLS: 0 RLNK: CONSTANT RLV : 0 RMOD: Default
> RMP : 1361 RPRO: 0 RRBV: 0 RRES: 999.99
> RSET: PTR 0x462f4c RSTM: NearZero RTRY: 5 RVAL: 0
> RVEL: 0 S : 5 SBAK: 3 SBAS: 3
> SCAN: Passive SDIS: CONSTANT SET : Use SEVR: NO_ALARM
> SMAX: 12 SPDB: 0 SPMG: Go SPVT: PTR 0x0
> SREV: 12800 SSET: 0 STAT: NO_ALARM STOO: CONSTANT
> STOP: 0 STUP: OFF SUSE: 0 SYNC: 0
> TDIR: 1 TIME: 2021-11-16 16:45:24.834573822 TPRO: 0
> TSE : 0 TSEL: CONSTANT TWF : 0 TWR : 0
> TWV : 1 UDF : 0 UDFS: INVALID UEIP: Yes
> UREV: 1.5 URIP: No VAL : 0 VBAS: 4.5
> VELO: 7.5 VERS: 7.2 VMAX: 18 VOF : 0
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