Cc-Link Ie Field Network Basic Function - Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual

CC-Link IE Field Network Basic function

The following is the list of special register areas relating to the CC-Link IE Field Network Basic function.
No. Name
SD1536 Cyclic transmission
to status of each station
SD1539
SD1540 Data link status of
to each station
SD1543
*1 This status includes the case where a slave station has not responded to the first request from the master station due to a power-off of
the slave station. (The slave station is not judged as a faulty station because the data link status is not determined.)
*2 The CPU module where this function can be used supports these special register areas.
Data stored Details
Cyclic transmission The cyclic transmission status of each station is stored using the
status of each station following bit pattern. (Off: Not performed, On: Being performed)
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
SD1536 16 15 14 13 12 11 10
SD1537 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
SD1538 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
SD1539 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
The numbers in the figure indicate station numbers.
(Condition)
• Only the bit of the start station number turns on.
• The status is not stored for the reserved stations and the station
numbers after the maximum station number.
Use this register as an interlock for cyclic transmission. For details
on the interlock program, refer to the following.
 CC-Link IE Field Network Basic Reference Manual
Data link status of The data link status of each station is stored using the following bit
each station pattern. (Off: Normally operating station
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
SD1540 16 15 14 13 12 11 10
SD1541 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
SD1542 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
SD1543 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
The numbers in the figure indicate station numbers.
(Condition)
• Only the bit of the start station number turns on.
• The status is not stored for the reserved stations and the station
numbers after the maximum station number.
This register can be used to monitor errors in slave stations,
connected cables, and a connected hub.
9 8 7 6 5 4 3 2 1
*1
, On: Faulty station)
9 8 7 6 5 4 3 2 1
Appendix 5 List of Special Register Areas
Set by CPU
(setting
timing)
*2
S (Status Rn
change)
*2
S (Status Rn
change)
A
APPX
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