Experimental Physics and
Industrial Control System

Mark Rivers <[email protected]> · Mon, 29 Jun 2015 12:36:43 +0000

As Ralph said, this is still not clear.  Please answer the following:

- What device are you reading from?
- How are you currently reading the data from that device?  By a custom driver/device support, via asyn record, via streamDevice, etc.
- How do you want to access the data?  Over Channel Access from a CA client, in some of your own C or Python code, etc.

Typically in EPICS we don't put 32-bit binary values into any array we put them into a single 32-bit integer and then use a "mask" to select which bit to access.

Mark

________________________________
From: ishita bhatia [[email protected]]
Sent: Monday, June 29, 2015 12:32 AM
To: Mark Rivers
Cc: Ralph Lange; EPICS Tech-Talk
Subject: Re: UCHAR to BitArray conversion(binary-bits array)

Hello Mark,
As u have asked in previous post, my end goal is to get reading of OPTO card in form of binary (1's and 0's) where  1 would represent ON status and 0 would represent OFF status. That is why the data which I am receiving from waveform record(data type: Uchar), I want that data in form of  Binary.
Now as I want data in form of binary, I passed the output of waveform record in mbbiDirect but the output I am getting from mbbiDirect is in form of 1 binary bit at a time....but I want output as array of binary bits(32 binary bits as output of my waveform record contains 4 bytes). So please tell me how to get such output or which record should I use to get that output.
I hope I am making my point clear.

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System