Mitsubishi Electric QJ71MB91 User Manual page 305

10
DEDICATED INSTRUCTIONS
(4) Error
(5) Precautions
When the dedicated instruction completes in error, the error completion device (D2)+1
turns ON and an error code is stored in the completion status (S1)+1.
(a) Before executing the UINI instruction
Stop the communication before executing the UINI instruction.
A UINI instruction execution during communication may cause the communication
to fail.
(b) When having changed the communication speed and/or transmission details
Change the current communication speed and/or transmission details of the
target device to the same settings.
If the settings are different from those of the target device, communication is not
available.
(c) When having changed the CH1/CH2 station No. setting
Change the station No. in the request message issued from the other device to a
new station No. of the QJ71MB91.
If these station numbers differ, communication is not available.
(d) Automatic communication function after UINI instruction execution
A UINI instruction execution stops the automatic communication function,
restoring initial automatic communication parameter values.
To use the automatic communication function after execution of the UINI
instruction, set the automatic communication parameters again.
(e) Simultaneous execution with any other dedicated instruction
Any other dedicated instruction cannot be executed during UINI instruction
execution.
Create a program so that another dedicated instruction will be executed after the
completion device (D1) is turned ON.
(f) When the QJ71MB91 is mounted on a MELSECNET/H remote I/O station
No dedicated instructions are executable.
10
10.4 ZP.UINI
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