Advantech PCI-1752U handleiding

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PCI-1752U/ PCI-1752USO User Manual 16
3.2.3 Channel-Freeze Function (JP2)
The PCI-1752U/ PCI-1752USO provides the channel-freeze function for isolated dig-
ital output channels. When Channel-Freeze function is enabled, all ports on the card
will be locked so that the data transmitted (from the host PC) to the card won’t be
transferred to the DO ports. Once the Channel-Freeze function is enabled, each port
status is immediately frozen into its last valid value before the Channel-Freeze. Since
the value transmitted (from the host PC) to the card is also stored in the buffers on
PC, users can call the relative function to read back the DO channel value, this func-
tion will determine that:
If Channel-Freeze function is disabled, it will return the DO value on the port
If Channel-Freeze function is enabled, it will return the value from the buffers on
host PC
Refer to Table 3.3 for setting dry/wet contact of Channel-Freeze function.
Table 3.3: Dry/Wet Contact of Channel-Freeze Function (JP2)
JP2 Input Mode
Dry contact input mode
Wet contact input mode (Default setting)

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Productinformatie

MerkAdvantech
ModelPCI-1752U
CategorieNiet gecategoriseerd
TaalNederlands
Grootte4603 MB