7 APPLICATION INSTRUCTIONS
7.8 Buffer Memory Access Instructions
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7
Data read from intelligent function modules is also possible with the use of an intelligent function module
device.
For intelligent function module device, refer to the User's Manual (Function Explanation, Program
Fundamentals) for the CPU module used.
• In any of the following cases, an operation error occurs, the error flag (SM0) turns ON, and an error code is stored into SD0.
• The following program reads CH1 digital output value of the Q68ADV at I/O numbers 040 to 04F to D0 when X0 is turned
on (reads data by one word from the buffer memory address 11).
• The following program reads the current feed value of axis 1 of the QD75P4 at I/O numbers 040 to 05F to D0 and D1 when
X0 is turned on (reads data by two words from the buffer memory address 800).
Error
code
Error details Q00J/
Q00/
Q01
QnH QnPH QnPRH QnU LCPU
1402 An error has been detected in an intelligent function module at the execution
of the instruction.
1412 There has been no exchange of signals with an intelligent function module at
the execution of the instruction.
2110 The I/O number specified in n1 is not for the intelligent function module.
4101 The range of n3 points (2 n3 points for the DFRO) from the device
specified in (D) exceeds the specified device range.
The address specified in n2 is outside the buffer memory range.
[Ladder Mode] [List Mode]
[Ladder Mode] [List Mode]
Step
Instruction
Device
Step
Instruction
Device