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2.4 Name of PF311 Module Components and Parts
2
• Status LED
• Configurator port (CONFIG)
PC (PROFIBUS-DP configurator) connector.
• Transmission cable terminating resistor specification switch (TERM)
TERM (terminating resistor) → ON: Terminated with terminating resistor. Turn on at
nodes on both ends.
• Transmission cable connector (PROFIBUS-DP)
PROFIBUS-DP transmission cable connector
• Reset switch (RESET)
Press when the PF311 is abnormal or when initializing the PF311 independent of the
controller.
• Loader port (LOADER)
PC (loader for use by TOSHIBA maintenance personnel) connector.
(Normally not used.)
Table 2-2 Status LED
RDY (green)
ON Transmission module normal
Slow flash
(1 Hz)
Firmware not stored.
Fast flash
(4 Hz)
Hardware error or system error or in downloading
firmware configuration data
OFF Hardware failure
RUN (green)
ON Communicating
Cyclic flash
(4 Hz)
Standby
Acyclic flash Configuration error or fatal error
TOKEN (green)
ON Token retained
OFF No token
ERR (red)
ON Error on communication line
OFF No error detected
ACC(green)
ON Controller accessing
OFF Controller not accessing