Word Data Start Address Setting Function - Mitsubishi Electric MELSEC iQ-R AnyWireASLINK User Manual

1.14

Word Data Start Address Setting Function

This function sets the start address of the word data transmission. Setting the start address shortens the word transmission
cycle time.
Unregistered addresses between address 0 and the registered address are accessed during word transmission. Although this
access takes extra time for word transmission cycle, setting the number of word data points and transmission start address
enhances the efficiency of transmission.
Address 0 1
Address 0 1
Address 250
(1) Registered address (word slave module)
(2) Access to unregistered addresses existing before the registered address causes extra time for word transmission cycle. (Number of word data points setting:
512 words (256 input words/256 output words))
(3) When the word data points setting is 2 words (1 input word/1 output word) and the word data transmission start address is set to 250, the address targeted
for access will be 250 only.
When using this function, check the production information of the RJ51AW12AL. ( Page 133 Added or
Changed Functions)
This function can be used for word data only. This function does not affect the target input and output
addresses of bit data.
Setting method
Set this function in "Word data points setting" of "Basic setting". ( Page 51 Word data point setting)
Precautions
An address exceeding the specified number of word data points cannot be set to "Word data points setting".
1 FUNCTIONS
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1.14 Word Data Start Address Setting Function
2 3 4 5 6 7 8
(2)
2 3 4 5 6 7 8
(3)
(1)
...
247 248 249 250 251 252 253 254 255
...
247 248 249 250 251 252 253 254 255