Is there a way by which each bit of the register of HC900 slave represent a value of one discrete signal or variable and then transmitted to Deltav Master where it is decoded again that a bit represent a one signal to be used in different function blocks?

 

DeltaV supports a lot of function blocks and one amongst them being the BFI (Boolean Fan In ) and BFO (Boolean Fan Out ) Registers. Now the structure of each is as follows :

B F I : The Input to this register is a discrete value while the output is
the bit pattern we get
For Eg : For a value 4 as input we get 0000 0000 0000 0100
If the BFI is a 16 bit register

BFO : Its the reverse of above case ie input is bit pattern and output
being a whole digit
Like if input to BFO is 0000 0000 0000 0110 then outpur value at the
register would be 5

For the below application signal from HC900 slave can be trasmitted to
DeltaV network through OPC and given as an input to BFO to be processed
further .

I am not very sure...but think it should work !!!

Paras Parmar

 

The current HC-900 encodes digital bits into a floating point word. Rumor has it that there might be an update in which the HC-900 gets an encoder function block which could bit pack a data word as an integer.

Won't know until the update release due sometime in July.

Bud