Experimental Physics and
Industrial Control System

Mark Rivers <[email protected]> · Sat, 7 May 2016 19:18:03 +0000

Hi Sajid,

I am not familiar with the "boplc" tool that you are using, so I cannot explain the warning that you are seeing.

However, I took the plcdb.db file that you sent and loaded into my IOC application.  It seems to load fine.

*********************************************************************
...
epicsEnvSet("TPMAC","/corvette/home/epics/support/tpmac-3-10dls10")
epicsEnvSet("VME","/corvette/home/epics/support/vme-2-8-2")
epicsEnvSet("EPICS_BASE","/corvette/usr/local/epics/base-3.14.12.5")
# Tell EPICS all about the record types, device-support modules, drivers,
# etc. in this build from CARS
dbLoadDatabase("../../dbd/CARSLinux.dbd")
CARSLinux_registerRecordDeviceDriver(pdbbase)
dbLoadRecords("./plcdb.db")
iocInit
Starting iocInit
############################################################################
## EPICS R3.14.12.5 $Date: Tue 2015-03-24 09:57:35 -0500$
## EPICS Base built Dec  9 2015
############################################################################
boplc devAsynUInt32Digital::initCommon connectDevice failed asynManager:connectDevice port A0_Out_Bits not found
iocRun: All initialization complete
epics> dbl
bi1
boplc

epics> dbpr boplc 2
ACKS: NO_ALARM      ACKT: YES           ASG:                BKPT: 00
COSV: NO_ALARM      DESC: PLC Coil Output                   DISA: 0
DISP: 0             DISS: NO_ALARM      DISV: 1
DOL:DB_LINK bi1 NPP NMS                 DTYP: asynUInt32Digital
EVNT: 0             FLNK:CONSTANT 0     HIGH: 0
IVOA: Continue normally                 IVOV: 0             LCNT: 0
MASK: 0             NAME: boplc         NSEV: INVALID       NSTA: LINK
OMSL: closed_loop   ONAM: High          OSV: NO_ALARM
OUT:INST_IO @asynMask(A0_Out_Bits 0 0x1)                    PACT: 1
PHAS: 0             PINI: NO            PRIO: LOW           PUTF: 0
RBV: 0              RPRO: 0             RVAL: 0             SCAN: Passive
SDIS:CONSTANT       SEVR: INVALID       SIML:CONSTANT       SIMM: NO
SIMS: NO_ALARM      SIOL:CONSTANT       STAT: UDF           TIME: <undefined>
TPRO: 0             TSE: 0              TSEL:CONSTANT       UDF: 1
VAL: 0              ZNAM: Low           ZSV: NO_ALARM

*********************************************************************

Note that the 2 records are loaded, and there was no error or warning from dbLoadRecords.  There is an error because it cannot find the asyn port A0_Out_Bits, but that is expected since I have not created that port in my startup script.  The output of dbpr shows that the boplc record correctly connected to the bi1 record, since it shows it as a database link, not a disconnected Channel Access link.

So I think your database is OK and you can ignore the warning.

Mark

________________________________
From: [email protected] [[email protected]] on behalf of sajid hameed [[email protected]]
Sent: Saturday, May 07, 2016 8:47 AM
To: [email protected]
Subject: Required help about mobbus tcp module

Dear rivers
i have just started working in epics. i am using its modbus tcp module for
accessing plc it works well.i have plc simulator when i access that with modbus tcp
module using epics it works well. i am facing a problem that i want to write a output
on coil register at index 0. i have designed simple boplc block for this puprpose it works well.
i want to give input signal to boplc record from bi1 recrod. for this i give the name of bi1 in the
DOL filed of boplc record. it make the connection but give the "warning message that Desired Output loc: warninig :bi1 doesnot match the pattern  @.*"
when i load the database it loaded successfully but when i change signal value of bi1 it change sucessfully but did not shift to boplc recrod.
can you please help how to shift bi1 record value to boplc recrod. i have attached snaps of database record field.
for simple records when we are not using any device support we can shift value one record to other record just by giving name in DOL field.
wait for yor reply
best regards
sajid

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System