Mitsubishi Electric MELSEC Q Series User Manual page 207

(2) Data communication frames and data codes
The following table shows the data communication frames and data codes which can be used for C Controller
module.
Data communication frame and data code
4E frame
QnA compatible 3E frame
A compatible 1E frame
(3) Error codes for SLMP (MC protocol) communication
For details of the error codes, refer to the following section.
Page 433, Appendix 1.5 Error code for SLMP (MC protocol) communication
(4) Setting method
Set the settings with the following function in Setting/monitoring tools for the C Controller module.
<Q24DHCCPU-V/-VG/-LS><Q26DHCCPU-LS>
•
Project view  "Parameter"  "CCPU Parameter"  <<System Ethernet port (S CH1) settings>>
 "Open setting"
<Q12DCCPU-V>
•
Project view  "Parameter"  "CCPU Parameter"
 <<Built-in Ethernet port (CH1 and CH2) settings>>  "Open setting"
● When a new request message is sent to a single UDP port in a period from sending a request message until receiving a
response message, the new request message is discarded.
● The setting of two or more same host station port numbers for UDP is equivalent to the setting of only one port number.
Select TCP for the protocol when communicating with two or more connected devices using the same host station port
number.
CHAPTER 12 FUNCTIONS ACCESSED VIA ETHERNET PORTS
ASCII code
Binary code
ASCII code
Binary code
ASCII code
Binary code
: Available, : Not available
Availability






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