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4.2 I/O Module and Intelligent Function Module Access Function
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FUNCTIONS
(2) Functions
The following functions are used to access the I/O modules and intelligent function
modules.
Remark
Refer to Chapter 10 for details of the bus interface functions.
Table4.2 Function list
Function name Function
QBF_Open Opens the bus.
QBF_Close Closes the bus.
QBF_X_In_BitEx Reads one input signal (X).
QBF_X_In_WordEx Reads input signals (X) in word units.
QBF_Y_Out_BitEx Outputs one output signal (Y).
QBF_Y_Out_WordEx Outputs output signals (Y) in word units.
QBF_Y_In_BitEx Reads one output signal (Y).
QBF_Y_In_WordEx Reads output signals (Y) in word units.
QBF_ToBuf
Writes to the CPU shared memory in the specified module position
or to the buffer memory of the intelligent function module.
(TO instruction)
QBF_FromBuf
Reads from the CPU shared memory in the specified module
position or from the buffer memory of the intelligent function
module. (FROM instruction)