Experimental Physics and
Industrial Control System

"XU Jie" <[email protected]> · Sat, 18 Jun 2016 16:12:24 +0800 (GMT+08:00)

Hello sir,
  I used the driver package  s7plc.tgz from PSI and tried to connetct the EPICS IOCsoft and siemens PLC317-2PN/DP  with TCP protocol. When the IOC starts, the problems like these followed:
Illegal field value PV: ai-int16-1 s7plcInitRecordAi: illegal INP field type

Illegal field value PV: ai-int16-1 s7plcGetInIntInfo: uninitialized record

s7plcReceiveThread Testsystem:0: read error after 0 of 10 bytes: Connection timed out

Is the cause of the problems the ioc failed to connect with PLC? Or there are other reasons?

Thank you.
Look forward to your answer.
Best regards,
Jie Xu

< envPaths
epicsEnvSet("ARCH","linux-x86_64")
epicsEnvSet("IOC","iocfirstIocboot")
epicsEnvSet("TOP","/home/newuser/EPICS/base-3.16.0.1/support")
epicsEnvSet("EPICS_BASE","/home/newuser/EPICS/base-3.16.0.1")
cd "/home/newuser/EPICS/base-3.16.0.1/support"

dbLoadDatabase "dbd/firstIoc.dbd"
firstIoc_registerRecordDeviceDriver pdbbase
var s7plcDebug 1

s7plcConfigure Testsystem:0,192.168.10.152,102,10,10,1,2000,500

dbLoadRecords db/first.db

iocInit
Starting iocInit
############################################################################
## EPICS R3.16.0.1 $Date: Thu 2016-03-03 17:36:43 -0600$
## EPICS Base built Jun  7 2016
############################################################################
s7plcInit: starting main thread
s7plcMain: main thread started
s7plcMain Testsystem:0: Connect to 192.168.10.152:102 on socket 5
s7plcEstablishConnection Testsystem:0: fd=5, IP=192.168.10.152 port=102
Illegal field value PV: ai-int16-1 s7plcInitRecordAi: illegal INP field type

Illegal field value PV: ai-int16-1 s7plcGetInIntInfo: uninitialized record

s7plcMain Testsystem:0: starting send thread Testsystem:0S
s7plcMain Testsystem:0: starting recv thread Testsystem:0R
s7plcSendThread Testsystem:0: started
s7plcReceiveThread Testsystem:0: started
iocRun: All initialization complete
## Start any sequence programs
#seq sncxxx,"user=newuser"
epics> s7plcWaitForInput Testsystem:0: select(5, 2.000000 sec) timed out
s7plcReceiveThread Testsystem:0: read error after 0 of 10 bytes: Connection timed out

first.db 
record (ai, "ai-int16-1") {
  # map range 0 ... 1000 to 0.0000 ... 10.0000
  field (DTYP, "S7plc")
  field (INP,  "@Testsystem:0/0 'T=INT16 L=0 H=1000'")
  field (EGUF, "10")
  field (LOPR, "-10")
  field (HOPR, "10")
  field (LINR, "LINEAR")
  field (PREC, "2")
  field (SCAN, "I/O Intr")
}

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

    Xu Jie,
   Southwestern Institute of Physics
    Chengdu, Sichuan 610041
    China
    Email: [email protected]
    Tel: +86-28-8285-0326

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System