Considerations For Use - Mitsubishi Electric MELSEC iQ-R Series User Manual

CONSIDERATIONS FOR USE

This section explains the following considerations.
Page 10 Considerations for network connection
Page 10 Considerations for performance/specifications
Page 11 Considerations for data logging, event logging, and report functions
Page 12 Considerations for other functions
Page 12 Considerations for accessing a high speed data logger module
Page 13 Considerations for security
Page 13 Considerations for using SD memory cards
Page 15 Considerations for using a redundant system
Page 15 Considerations for the recipe function
Considerations for network connection
■Mail server and FTP server connections
When immediately powering ON after powering OFF, connection to mail servers or FTP servers may fail.
Power the programmable controller OFF, wait several minutes then power it ON.
Considerations for performance/specifications
■Sequence scan time of the CPU module
When using the high speed data logger module, the CPU module sequence scan time may increase.
Design your system and programs keeping in mind this increase in sequence scan time of the CPU module.
■Network connection using Ethernet
• When connecting to Ethernet network, basically configure the communication route to the access target via Ethernet
(twisted pair) cables and hubs. Note that when accessing via wireless LAN (Wi-Fi) or router, an error such as timeout or
missing data occurs, and cannot be communicated properly depending on the status of the equipment (wireless LAN or
router) on the network or the access route.
• When the access to the high speed data logger module is overloaded, errors and missing data may occur. Creating logging
files, report files might take time, and communication with the module might not be possible. Reduce the load on the
Ethernet network which is connected to the high speed data logger module.
■Time handled on the high speed data logger module
Time handled on the high speed data logger module is the time on the CPU module.
For errors and the optimum timing for setting the time, refer to the following:
Page 90 Time Synchronization Function
MELSEC iQ-R High Speed Data Logger Module User's Manual (Startup)
■High speed sampling
The high speed sampling function is not supported by CPU modules on other stations via a network.
10