Nand4 - Four-input nand Gate
This function returns the result of ANDing its four inputs and then NOTing the result.
Arguments
IN1% to IN4%
The values to be NANDed together. Only the bottom bit (bit 0) of each input will be NANDed. All other bits in the input will be ignored.
Example
Target/ Language Restrictions
None.
See Also
AND4
NOR4
OR4
XOR4
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Neg - Inverts Input
This function negates the value of its input (integer or floating-point) The function can only be used in QLD and LD/ FB diagrams; it is not available in DPL.
Arguments
IN
The value to be negated.
Return Values
Q
The negated value.
Target/ Language Restrictions
This function can only be used in the LD/ FB or QLD diagram editors.
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Netreply
This function returns the value of a CTNet read operation (RDNET or RDNETB). The operation also needs to be called after a CTNet write operation (WRNET, WRNETB) to return the CTNet drivers to an idle state in preparation for another read or write request.
Arguments
0
The operation should be passed the value 0. This argument is only included for historical reasons.
Return Values
Q%
The 32-bit signed value from a successful RDNET operation. In the case of RDNETB commands on the SM-Applications module, the values for the parameters are returned in the Results%[] array that was passed into the RDNETB command. The value returned from this function is undefined.
Example
Target/ Language Restrictions
Ony available on CTNet-capable modules - SM-Applications, MD29AN, UD75.
See Also
RDNET
RDNETB
WRNET
WRNETB
NETSTATUS
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Netstatus
This function is used to poll for command completion when a Waitcode% value of 0 is specified in a call to a RDNET, WRNET, RDNETB or WRNETB command.
Arguments
0
The operation should be passed the value 0. This argument is only included for historical reasons.
Return Values
Q%
The status of the previous RDNET, RDNETB, WRNET or WRNETB operation. When using a RDNET or RDNETB command with a WaitCode of 0, NETREPLY must be called to return the network to IDLE state even if NETSTATUS returns an error code.
Example
Target/ Language Restrictions
Ony available on CTNet-capable modules - SM-Applications, MD29AN, UD75.
See Also
RDNET
RDNETB
WRNET
WRNETB
NETREPLY
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Nor4 - Four-input nor Gate
This function returns the result of ORing its four inputs and then NOTing the result.
Arguments
IN1% to IN4%
The values to be ORed together. Only the bottom bit (bit 0) of each input will be ORed. All other bits in the input will be ignored.
Example
Target/ Language Restrictions
None.
See Also
AND4
NAND4
OR4
XOR4
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OpenReadSmartCard
This function opens a smartcard file for reading. This operation must be called before reading data from a smartcard.
Arguments
FNum%
The ID of the file on the smartcard. See the Unidrive SP User Guide for more details.
Return Values
Status%
The status of the open command.
Size%
The size in bytes of the data in the file on the smartcard.
Example
See SmartCard Example Program for example program.
Target/ Language Restrictions
This function is only available on SM-Applications and SM-Applications Lite.
See Also
OpenWriteSmartCard
CloseSmartCard
ReadSmartCardByte
WriteSmartCardByte
GetNextSmartCardFile
ReadReadOnlyBit
WriteReadOnlyBit