Mitsubishi Electric FR-A7NC Instruction Manual page 12

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Operation status indication LED
Lit when refresh data is properly received. Turns off when a data transmission is stopped for a
L.RUN
certain period of time.
• Lit when a communication error occurs in the own station and flickers when settings of switch, etc.
are changed while power is on.
L.ERR
• Flickers when the Pr. 542 or Pr. 543 setting is changed.
Turn the power on again or turn the RES signal on. (Refer to page 39, 40.)
Lit during normal operation (5V is supplied in the board) (Lit even in the non-communication status.)
RUN
Flickers when the master station is CC-Link Ver.1 and the FR-A7NC is CC-Link Ver.2 compatible.
(Refer to page 7.)
SD
Turns off when no data is transmitted.
RD
Lit when the received data carrier is detected.
REMARKS
Set the station number using Pr. 542 Communication station number (CC-Link). (Refer to page 39.)
Set transmission baud rate using Pr.543 Baud rate (CC-Link). (Refer to page 40.)
PRE-OPERATION INSTRUCTIONS
1
5

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