Grounding; Communication Setting - Mitsubishi MELSEC iQ-F FX5 User Manual

Grounding

Grounding should be performed as stated below.
• Perform D class grounding. (grounding resistance: 100 Ω or less)
• Independent grounding should be performed for best results.
When the independent grounding can not be performed, perform "shared grounding" as shown in the following figure.
For details, refer to the following.
MELSEC iQ-F FX5U User's Manual (Hardware)
MELSEC iQ-F FX5UC User's Manual (Hardware)
Other
PLC
equipment
Independent grounding
(Best condition)
• The grounding wire size should be AWG 14 (2 mm
• Bring the grounding point close to the PLC as much as possible so that the ground cable can be shortened.
2.6

Communication Setting

For the FX5 communication settings of this function, parameters are set using GX Works3. For details about GX Works3, refer
to GX Works3 Operating Manual.
Setting of parameter differs according to the module used. The procedure for each module is as follows.
For the communication settings of FX3 PLC, refer to FX Series User's Manual - Data Communication Edition.
Built-in RS-485 port (CH1)
Navigation Window  Parameter  FX5UCPU  Module Parameter  485 Serial Port
Window
The following screen will be displayed if [N:N Network] is set for the communication protocol type.
■Basic Settings
■Fixed Setting
■Link Device
2 N:N NETWORK
24
2.6 Communication Setting
Other
PLC PLC
equipment
Shared grounding Common grounding
(Good condition)
2
) or larger.
Other
equipment
(Not allowed)