Communication Type; Packet; Communication Settings - Mitsubishi MELSEC iQ-F FX5 User Manual

Items
Monitoring time
Communication data code
The maximum data length that can be
sent/received at one time.

Communication type

With the predefined protocol support function, communications with counterpart devices are performed using the following
procedures (communication types).
Communication type name
Send Only
Receive Only
Send & Receive
For the operation of each communication type, refer to Page 237 Operation image of each communication type.

Packet

A send packet to the counterpart devices and a receive packet from the counterpart devices at the time of process execution
are registered in a protocol.
For details of packet elements, refer to Page 198 Packet Setting.
Ex.
Example of a packet configuration
Header Station No.
7.5

Communication Settings

For the FX5 Series 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.
Built-in RS-485 port (CH1)
Navigation Window  Parameter  FX5UCPU Module Parameter  485 Serial Port
Window
The following screen will be displayed if [Predefined Protocol Support Function] is set for the communication protocol type.
■Basic Settings
Specifications
0 to 300000 ms
Binary/ASCII
2048 byte
Processing
Sends a send packet once.
One send packet is required.
Receives a packet if it matches any of up to 16 defined receive packets.
One or more receive packets are required.
Sends a send packet, and then receives a packet if it matches any of up to 16 defined receive packets.
One send packet and one or more receive packets are required.
Data area
Number of byte
Command
to be read
Maximum data length: 2048 bytes
Items
When set 0 ms, timeout does not occur.


Read data Check code
7 PREDEFINED PROTOCOL SUPPORT FUNCTION
7.5 Communication Settings
7
Terminator
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