Mitsubishi Electric MELSEC-Q Series User Manual page 154

(d) Precautions when using the block data assurance per station function
• Refresh device setting
When using this function, set the refresh devices in the network parameter. If the refresh devices are not
set, the remote input (RX), remote output (RY), and remote register (RWr, RWw) of the buffer memory
may not be refreshed.
• Assurance of 32-bit data
Integrity of 32-bit data in remote register (RWr/RWw) is assured even if "Block Data Assurance per
Station" is not set. (
• Transmission delay time and link refresh time
When this function is used, transmission delay time and link refresh time become longer than those of
when this function is not used. When designing a system based on an existing system, check the
transmission delay time and link refresh time at startup of the system. (
Page 389, Appendix 4.4)
152
Page 153, Section 8.2.6 (2))
Page 371, Appendix 4.2,