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Description of parameters
3
PARAMETERS
3.4.24 Initial setting and specification for the CC-Link communication function (Pr. 542 to
Pr. 544)
Parameters which can be set when the plug-in option (FR-A7NC) is mounted.
(1) Station number setting (Pr. 542)
Use Pr. 542 Communication station number (CC-Link) to set the station number of the converter. Set this parameter within the
range of 1 to 64.
Connection example
(2) Baud rate setting (Pr. 543)
Set the transmission speed. (Refer to the manual for the CC-Link master module for the details of the transmission speed.)
Set the station number and baud rate required for the CC-Link communication.
Parameter
Number
Name
Initial
value
Setting range Description
542
Communication station
number (CC-Link)
1 1 to 64 Set the station number of the converter.
543
Baud rate (CC-Link) 0 0 to 4 Set the transmission speed.
544
CC-Link extended setting 0 0, 1, 12 Extend the functions of the remote register.
NOTE
Use different station numbers for different devices. (If different devices have the same station number, the
communication cannot be performed properly. )
REMARKS
Set consecutive numbers for the station numbers. (Do not skip a number in sequence like "station number 1 - station number 2
- station number 4".)
The station number does not have to match with the physical connection sequence. (There is no problem with having the
physical connection sequence like "station number 1 - station number 3 - station number 4 - station number 2".)
One converter occupies one station (one remote device station).
"L.ERR" LED on FR-A7NC flickers when a setting is changed. The LED turns OFF when the setting becomes valid by turning
the power OFF, then ON, or performing a converter reset.
Pr. 543 Setting Transmission speed
0 (Initial setting) 156kbps
1 625kbps
22.5Mbps
35Mbps
4 10Mbps
REMARKS
"L.ERR" LED on FR-A7NC flickers when a setting is changed. The LED turns OFF when the setting becomes valid by turning
the power OFF, then ON, or performing a converter reset.
CC-Link
master module
Programmable controller
remote I/O station
(occupies one station)
Station 01
Converter
Remote device station
Inverter No.1
Remote device station
Inverter No.2
Remote device station
Station 02 Station 03 Station 04
Number of stations connected is 4.
Station 00
HC2.book 109 ページ ２０１２年１１月１９日 月曜日 午前１０時５２分