Panasonic FPG-COM4-A - Page 216

FPΣ User's Manual
8.6 Program Controlled Communication
199
"Transmission done" flag
When the specified number of bytes has been sent, the "transmission done" flag turns to
TRUE. New data may be sent or received. F159_MTRN turns the "transmission done" flag to
FALSE. While F159_MTRN is executed, no data can be received.
The "transmission done" flag can be evaluated using the IsTransmissionDone function. Or
use the system variable sys_bIsComPort1TransmissionDone,
sys_bIsComPort2TransmissionDone, or sys_bIsToolPortTransmissionDone, depending on
the port.
Port
name
Port
number
Special
internal
relay
Function name System variable name
Bit
status
TOOL 0 R903F sys_bIsToolPortTransmissionDone
COM1 1 R9039 sys_bIsComPort1TransmissionDone
COM2 2 R9049
IsTransmissionDone
sys_bIsComPort2TransmissionDone
TRUE
Communication error flag
If the communication error flag turns to TRUE during reception, reception continues. Execute
F159_MTRN to turn the error flag to FALSE and to move the write pointer back to offset 1.
The communication error flag can be evaluated using the IsCommunicationError function. Or
use the system variable sys_bIsComPort1CommunicationError,
sys_bIsComPort2CommunicationError, or sys_bIsToolPortCommunicationError, depending
on the port.
Port
name
Port
number
Special
internal
relay
Function name System variable name
Bit
status
TOOL 0 R900E sys_bIsToolPortCommunicationError
COM1 1 R9037 sys_bIsComPort1CommunicationError
COM2 2 R9047
IsCommunicationErro
r
sys_bIsComPort2CommunicationError
TRUE