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<== Date ==> <== Thread ==>

Subject: Modbus Problems
From: 黄佳伟 via Tech-talk <tech-talk@aps.anl.gov>
Date: Wed, 6 Nov 2019 17:07:19 +0800
Hi,
    I meet some problems with modbus module.
   No errors and warnings when I execute the cmd file. However the 'STAT's of all pvs are 'UDF' when I execute "dbpr" in iocsh and if I caget these pvs, it shows "Channel connect timed out" and cannot fine the pv.
    Anyone knows what's wrong?

    Here is my `cmd` file:

 #!../synApps/support/modbus-R3-0/bin/linux-x86_64/modbusApp
dbLoadDatabase("../synApps/support/modbus-R3-0/dbd/modbus.dbd")
modbus_registerRecordDeviceDriver(pdbbase)

drvAsynIPPortConfigure("AC500", "153.160.2.101:502", 0, 0, 1)

modbusInterposeConfig("AC500", 0, 5000, 0)

# drvModbusAsynConfigure(modbusPort,              asynPort,  0, modbus_function, offset, data_length, data_type, timeout, debug)
drvModbusAsynConfigure(  "ChamberVaccum0",       "AC500",    0, 4,               200,    2,           8,         1000,     "AC500")
drvModbusAsynConfigure(  "ChamberVaccum1",       "AC500",    0, 4,               202,    2,           8,         1000,     "AC500") 
# drvModbusAsynConfigure(  "P04show",               "AC500_1", 0, 4,                                                                 )
drvModbusAsynConfigure(  "P40show",              "AC500",    0, 4,               204,    2,           8,         1000,     "AC500") 
# drvModbusAsynConfigure(  "POilshow",              "AC500_1", 0, 4,                     )
# drvModbusAsynConfigure(  "Tplus1",     "AC500_1", 0, )
# drvModbusAsynConfigure(  "DiPlus16",  "AC500_1", 0, 5, 1604, 6, 0, 100, "AC500_1")
# drvModbusAsynConfigure(  "DiSub16", "AC500_1", 0, 5, 1605, 6, 0, 100, "AC500_1")
# drvModbusAsynConfigure(  "DiPlus01", "AC500_1", 0, 5, 1608, 6, 0, 100, "AC500_1") 
# drvModbusAsynConfigure(  "DiSub01", "AC500_1", 0, 5, 1609, 6, 0, 100, "AC500_1")
# drvModbusAsynConfigure(  "Protect", "AC500_1", 0, 5, )
# drvModbusAsynConfigure(  "VaccumProtect01", "AC500_1", 0, 5)
# drvModbusAsynConfigure(  "VaccumProtect02", "AC500_1", 0, 5)
# drvModbusAsynConfigure(  "Tplus0",  "AC500_1", 0, )
# drvModbusAsynConfigure(  "fireProtect", "AC500_1", 0, 5)
# drvModbusAsynConfigure(  "FIRE", "AC500_1", 0, 5)
# drvModbusAsynConfigure(  "KM1", "AC500_1", 0, 5)
# drvModbusAsynConfigure(  "KM2", "AC500_1", 0, 5)

asynSetTraceIOMask("AC500", 0, 255)

asynSetTraceIOMask("ChamberVaccum0", 0, 255)
asynSetTraceIOTruncateSize("ChamberVaccum0", 0, 512)

dbLoadTemplate("abb.substitutions")

iocInit

and here is my substitution file:
file "../synApps/support/modbus-R3-0/db/aiFloat64.template" {pattern
    {P,    R,              PORT,            OFFSET, LOPR, HOPR,   PREC, SCAN,       DATA_TYPE}
    {AC1:, Vac0,           ChamberVaccum0,  0,      0.,   10000., 11,   "I/O Intr", "MODBUS_DATA"}
    {AC1:, Vac1,           ChamberVaccum1,  0,      0.,   10000., 11,   "I/O Intr", "MODBUS_DATA"}
    # {AC1:, PrsAtGasCylinder, P04show,         0,      0.,   10000., 11,   "I/O Intr", "MODBUS_DATA"}
    {AC1:, PrsAtPumpTube,  P40show,         0,      0.,   10000., 11,   "I/O Intr", "MODBUS_DATA"}
}


Thanks,
Jasper

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