Connection Of I/O Link (When Using M64) - Mitsubishi Electric MELDAS 60 Series Maintenance Manual

4.2.7 Connection of I/O Link (When using M64)

The I/O link is a function used to exchange various data between NC units. (System option function)
Connect the "AUX2" connectors found on the front of each control unit.
Up to four salve NC units can be connected to one master NC unit.
1) Setting the master station and slave station
The master station and slave station number must be set and the terminator must be set for the I/O
link. Refer to the following drawings and set. The master station and slave station are set with the
rotary switch "NCNO".
Turn ON the terminator changeover switch "SW2" for the master station and slave (final) station.
Connecting one master station and three slave stations
CAUTION
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4.2 FCU6-MU011 Control Unit (MELDAS64 compatible)
Slave station
Master station
(intermediate station)
NCNO
0
SW2 [on]
AUX2
SH21 cable
(FCUA-R000 cable)
• The FCUA-R001 cable or HR591 card is used to relay the control units.
• The maximum cable length between the master station and final station is 15m.
• Control units with the HR531B/532B card can also be used.
Set the station No. for the I/O link connection.
NCNO
0 : Master station (only one station)
1 to 4 : Slave station (set as a serial No. from the master station)
Set the terminator.
SW2
ON : The terminator is valid when the switch is set to the downward position. (Master/slave final station)
OFF : The terminator is invalid when the switch is set to the upward position. (Slave intermediate station)
Connect the control unit for carrying out the I/O link connection.
AUX2
Incorrect connections could damage the device, so always connect the cable to the
designated connector.
Do not connect or disconnect the connection cables between each unit while the power
is ON.
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4. CONTROL UNIT
Slave station
(intermediate station)
NCNO NCNO
1 2
SW2 [off]
SW2 [off]
AUX2
AUX2
FCUA-R001 cable
SH21 cable
AUX-IN
(FCUA-R000 cable)
SH21 cable
(FCUA-R000 cable)
HR591 card
Refer to the above drawing for an example of the settings.
I-24
Slave station
(final station)
NCNO
3
SW2 [on]
AUX AUX2 AUX-OUT
SH21 cable
(FCUA-R000 cable)