Communication Timeout; Delay By Communication Time; When Using Multi-Cpu System Configuration - Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual

Precautions
■Time to be set
The time to be set in the CPU module is the time which is obtained by adjusting the time information (UTC) retrieved from the
SNTP server (time information server) based on the time zone set in "Clock Related Setting" under "Operation Related
Setting" of "CPU Parameter".

■Communication timeout

If a response is not received from the SNTP server (time information sever) 20 seconds after the time setting is executed, the
communication times out. An error does not occur when the communication times out. Instead, the timeout occurrence
appears in the event history.

■Delay by communication time

The time set in the CPU module may be delayed by the time required to communicate with the SNTP server's personal
computer. To reduce this delay, specify an SNTP server personal computer on the network that is as close to the Ethernet-
equipped module as possible.

■When using multi-CPU system configuration

Execute the time setting only for the CPU No.1. Even if the time is set for a CPU module other than the CPU No.1, the clock
data for the CPU No.1 is set automatically.
■Setting the execution time
The execution time can be set in the range of 1980 to 2079.
1 FUNCTIONS
142
1.11 Time Setting Function (SNTP Client)