Experimental Physics and
Industrial Control System

> In this case  I will have problem with registering the port and interfaces for my driver. So will above method will work ? or please suggest the good way to tackle this problem.

I don't understand why you will have a problem registering the port and interfaces for your driver.  The fact that your S7 driver is now talking to 2 underlying asynIPPort drivers should not affect registering your driver and interfaces.

Maybe I am missing something?

Mark




________________________________
From: [email protected] [[email protected]] on behalf of Patel Jignesh [[email protected]]
Sent: Wednesday, October 22, 2014 10:19 AM
To: [email protected]
Subject: asyndriver : Multiple drvAsynIPPort

Hi,

For asyn based Siemens PLC driver development, currently I am using IP Port driver with below configuration and primary development is working good with block data transfer.

drvAsynIPPortConfigure("PLC_SAMPLE_CPU_2000", "10.130.1.109:2000", 0, 0, 1)
drvS7synConfigure("P0_cfg", "PLC_SAMPLE_CPU_2000", 128, 66, 50, "PLCSample 0")

Now to handle the redundant PLC configuration, I have to connect to two PLCs, and I will process/pass the data from any one plc out of two, so I am thinking like, to open two connection using IPPort driver and use them both in my driver like below,

drvAsynIPPortConfigure("PLC_SAMPLE_CPU0_2000", "10.130.1.109:2000", 0, 0, 1)
drvAsynIPPortConfigure("PLC_SAMPLE_CPU1_2000", "10.130.1.110:2000", 0, 0, 1)

drvS7synConfigure("P0_cfg","PLC_SAMPLE_CPU0_2000", "PLC_SAMPLE_CPU1_2000", 128, 66, 50, "PLCSample 0")

In this case  I will have problem with registering the port and interfaces for my driver. So will above method will work ? or please suggest the good way to tackle this problem.

Thanks and best regards,
Jignesh

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Jignesh PATEL
Control Systems Integration Technician
CODAC Section

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References:

asyndriver : Multiple drvAsynIPPort Patel Jignesh

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