delete all values of a channel

[kaan]

Hi,

when i delete all values in a channel in data portal

Call DATABLDEL("/VS_Y",1,Chnlength(3))

it also deletes the name of the channel! how can i avoid this?

thanks in advance

kaan

[hass]

Hi kaan,

I think the reason is, that DIAdem 'think', if you delete all data of a channel you don't need that channel.

A workaround could be to re-create that channel with ChnAlloc

[Ulrich_Bierwisch]

Hi,

It is possible to set the channel length to zero:

Call ChnPropSet(3, "length", 0) ' Set length of channel 3 to zero

This is different from deleting, because usually the values are still there, but not valid anymore. You can get the values back by resetting the length. For normal operations, the channel should behave like a channel with the length of zero.