Mitsubishi Electric MELSEC-L Series - Data Format; Header; Application Data

133
CHAPTER 12 COMMUNICATIONS USING A FIXED BUFFER
12
12.6 Data Format 12.6.1 Header
12.6 Data Format
Communication data consists of a header and application data.
12.6.1 Header
The header for TCP/IP or UDP/IP is used. Because an E71 automatically adds and deletes a header, the user setting
is not required.
(1) Detailed header sizes
(a) TCP/IP
(b) UDP/IP
12.6.2 Application data
This section describes the application data configuration.
(1) Procedure exists
In the application data for communications with the "Procedure Exist" control method, the following data code is
expressed in a binary code or an ASCII code. To switch between a binary code and an ASCII code, use the
Ethernet operation setting.
Project window [Parameter] [Network Parameter] [Ethernet/CC IE Field] Select
"Ethernet" under "Network Type". button
Ethernet
(14 bytes)
IP
(20 bytes)
TCP
(20 bytes)
Ethernet
(14 bytes)
IP
(20 bytes)
UDP
(8 bytes)