Mitsubishi Electric MELSEC-A Series User Manual page 188

APPENDICES
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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
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