Experimental Physics and
Industrial Control System

James Stevens <[email protected]> · Thu, 17 Nov 2011 17:42:35 -0600 (CST)

Let me restate my last post.

I am trying to update a soft IOC using the modbusIP
driver (version 1-1-asd6) from the Canadian Light
Source to Mark Rivers' modbus over asyn version
2-1.

The soft IOC is reading a Siemens 9610 Power 
Meter on the accelerator network.

I started by trying to read an unsigned 16 bit
register at the 40150 decimal base address, but
the values read back from the power meter are
all ff's.

How can I verify that I am reading the correct
base address?

#ups-cp2
drvAsynIPPortConfigure("L0","164.54.2.216:502",0,0,1)
modbusInterposeConfig("L0",0,5500,0)
drvModbusAsynConfigure("UPSDASHCP2","L0",100,3,40150,16,0,5000,"9610PM")
#asynSetTraceMask("L0",0,3)
asynSetTraceIOMask("L0",0,2)
## Load record instances
dbLoadRecords("db/SIEM9610.vdb","L=CP2")
dbLoadRecords("db/asynRecord.db","P=SR:,R=SIEM:9610,PORT=L0,ADDR=0,OMAX=0,IMAX=0")
cd /home/helios5/JBS/upsmbus/1/iocBoot/siocupsmon
iocInit
Starting iocInit
############################################################################
## EPICS R3.14.11-asd1 $R3-14-11$ $2009/08/28 18:47:36$
## EPICS Base built Aug 28 2009
############################################################################
cas warning: Configured TCP port was unavailable.
cas warning: Using dynamically assigned TCP port 52753,
cas warning: but now two or more servers share the same UDP port.
cas warning: Depending on your IP kernel this server may not be
cas warning: reachable with UDP unicast (a host's IP in EPICS_CA_ADDR_LIST)
iocRun: All initialization complete
epics> 2011/11/17 17:40:24.571 164.54.2.216:502 write 12

00 01 00 00 00 06 64 03 9c d6 00 10 
2011/11/17 17:40:24.574 164.54.2.216:502 read 41

00 01 00 00 00 23 64 03 20 ff ff ff ff ff ff ff ff ff ff ff 
ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 
ff 

Regards--Jim Stevens

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System