Panasonic FP Series Programming Manual page 783

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Data transfer via communication ports

Is145F146NotActive

This instruction returns the value of the "F145F146 Not Active" flag of the PLC's serial

communication interface.

This flag varies depending on the PLC type:

For detailed information on using system variables, please refer to data transfer to and from special

data registers (see page 859).

IsReceptionDone for a special COM port via the corresponding System Variable

You can use the following system variables to evaluate the IsF145F146NotActive flag for a special COM port:

sys_bIsComPort1F145F146NotActive

sys_bIsComPort2F145F146NotActive

for all ports via a general function

(not for FP-Sigma 12k)

CPU COM port

MCU COM1 port of MCU

unit in slot xx

MCU COM2 port of MCU

unit in slot xx

System variable

sys_bIsComPort1F145F146_

sys_bIsComPort2F145F146_