Panasonic FP2 Manual page 16

Functions of Computer Communication Unit
1.4 Communication Conditions and Restrictions Relating to Functions
A similar restriction also applies if access is being made from another station connected
with the link unit.
Unit No. 1 (source station)
Power
CPU CCU CCU
supply
C C
B
A
D D
If remote programming is used to change the monitor-
ing destination from another station connected with the
Multi−wire Link Unit (MW), the monitoring destination
of the Computer Communication Unit COM.1 port of
the source station side will end up being changed.
Note
If a monitor command is used for a port in the same group,
registered data will be rewritten in sequential order starting from
the most recent data, and different data will end up being
monitored.
Tip
− Monitoring commands are commands used to implement monitoring
after the contact or data to be monitored has been registered on the
PLC side.
− The above restriction does not apply if the FP2SH CPU unit is being
used.
1 − 10
5 1 5
A M
3
¦
L
MW
Unit No. 2 (other station)
Power
CPU MW
supply
D
C
FP2−CCU