Limitation When Ch1 And Ch2 Are Used At The Same Time - Mitsubishi FX3U-232-BD User Manual

FX Series PLC User's Manual - Data Communication Edition
Common Items
3.4.1

Limitation when ch1 and ch2 are used at the same time

When using ch1 and ch2 at the same time, available communication type combinations are limited. For
details, refer to the table below.
Communication
channel: ch2
Communication
special adapter
N:N Network
Parallel link
Computer link
Inverter com-
munication
Non-protocol com-
munication (RS
*1
instruction)
Non-protocol com-
munication (RS2
instruction)
Programming com-
munication
Remote mainte-
*2
nance
*1. Ch2 cannot be set for non-protocol communication (RS instruction).
*2. When using remote maintenance on ch2, use the GX Developer Ver. 8.18U or later.
Example 1:
When "parallel link" is set for ch1, the "N:N Network" cannot be set for ch2.
Example 2:
When "computer link" is set for ch1, the "N:N Network" can be set for ch2.
A-54
Communication channel: ch1
Communication
Expansion
special adapter
Computer
N:N Network Parallel link
link
−
−
(Example 1) (Example 2)
− −
− − −
3 Outline of Communication Setting in the FX Series
R DA
R D
R DB
S DA
S D
S DB
S G
board
Communication setting for ch1
Inverter Non-protocol
communica- communication communication
tion (RS instruction) (RS2 instruction)
− −
3.4 Extension of Ports (FX3U, FX3UC)
FX /FX PLC
3U 3UC
: Applicable, −: Not applicable
Non-protocol Program-
Remote
ming com-
maintenance
munication
− − −
−