Re: Understanding Motor Record

[Mark L Rivers via Tech-talk <tech-talk at aps.anl.gov>]

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

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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