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APPENDICES
- - - - - - - - - - - - - - - - - - - - MELSEC·A
Table 3.1 List of Special Registers (Continued)
Stored
Related
Related
Number
Name
Data
Explanation
SpecIal
SpecIal
Relay.
Reglater.
o : Normal
• Error code number is stored when M9061 is set
1 : Initial
(communication with an I/O module or remote
data
terminal module is impossible).
*t
Cern-
error
• 1 :
Initial program contains an error. (The total
09061
II'U"ic9icn
2 : Line
number of stations of 1/0 modules and remote
M9061
-
error
fault
terminal modules, or the number of retries is
inoorrect.)
e2:
Cable is broken, or an I/O module or remote
terminal module is turned off.
Number
• The number of requests for communication with
of
remote terminal modules made with the
requests
[FROMITO] instructions is stored.
for
• The number of requests decreases by 1 every
com-
time the communication with remote terminal
09081
munica-
o to 32
modules is completed.
M9081
-
tlon
with
remote
terminal
modules
Final
Final
The final station number of remote I/O modules or
connec-
connec-
remote terminal modules connected to the A2C is
09082
tion
tion
stored.
M9082
-
station
station
number
number
APP-14
I
4

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