Re: GPIB: To FLNK or Not to FLNK

[Ned Arnold <nda@aps.anl.gov>]

> Fold 2:
> I want the functionality to turn on or off LNK's. I believe this could
> be implemented with the SELM = MASK field in the sequence record.
> 
> 
> Any hints on how to implement this?
> Much obliged.
> 
> -Mathew Rippa
> 	~Joint Astronomy Centre


Here is my "standard" approach. (I sometimes use a calc record instead of the
mbbo record if other PVs are involved in determining which links I want 
processed) ...

# The following record controls how the xxx:SelectCamC sequence records work
# If VMUX only, xxx:SelectCamC only changes the video muxes
# If VMUX+Actuator, xxx:SelectCamC removes all actuators, inserts the
# desired one, turns on the camera, and selects the video muxes
        record(mbbo,"LI:SelectCamModeC") {
                field(PINI,"YES")
                field(DTYP,"Raw Soft Channel")
                field(DOL,"0")
                field(ZRVL,"0xf")
                field(ONVL,"0xff")
                field(ZRST,"VMUX only")
                field(ONST,"VMUX+Actuator")
        }
        record(seq,"LI:FL:FS1:CID:SelectCamC";) {
                field(DESC,"LI Screen #1")
                field(SELM,"Mask")
                field(SELL,"LI:SelectCamModeC.RVAL NPP NMS")
                field(DLY1,"0")
                field(DOL1,"0")
                field(LNK1,"LI:VD1:MUX:mcr1SelectGrp1C.VAL PP NMS")
                field(DLY2,"0")
                field(DOL2,"0")
                field(LNK2,"LI:VD1:MUX:mv20SelectGrp1C.VAL PP NMS")
                field(DLY5,"0")
                field(DOL5,"0")
                field(LNK5,"LI:upstreamScreensOutSQ.VAL PP NMS")
                field(DLY6,"1.0")
                field(DOL6,"1")
                field(LNK6,"LI:FL:FS1:Act1InC.VAL PP NMS")
                field(DLY7,"0")
                field(DOL7,"1")
                field(LNK7,"LI:FL:FS1:CameraOnC.VAL PP NMS")
        }



Hope this helps ...

	Ned