Mitsubishi FX3U-?*MR/ES User Manual page 490

FX Series Programmable Controllers
3U
User's Manual - Hardware Edition
Number and
Content of register
name
Constant Scan
[D]8030
[D]8031
[D]8032
[D]8033
[D]8034 Not used
[D]8035
[D]8036
[D]8037
[D]8038
Default: 0 ms (in 1 ms steps)
D 8039
(Writes from system ROM at power
Constant scan
ON)
duration
Can be overwritten by program
Stepladder and Annunciator
*1
[D]8040
ON state number
1
*1
[D]8041
ON state number
2
*1
[D]8042
ON state number
3
The smallest number out of active
*1
[D]8043
state ranging from S0 to S899 and
ON state number
S1000 to S4095 is stored in D8040
4
and the second-smallest
number is stored in D8041.
*1
[D]8044
Active state numbers are then
ON state number
sequentially stored in registers up
5
to D8047 (Max. 8 points).
*1
[D]8045
ON state number
6
*1
[D]8046
ON state number
7
*1
[D]8047
ON state number
8
[D]8048 Not used
When M8049 is ON, the smallest
*1
[D]8049
number out of active annunciator
On state minimum
relay ranging from S900 to S999 is
number
stored in D8049.
[D]8050 to [D]8059 Not used
*1. Executed at END instruction.
482
Correspond-
Number and
ing special
name
device
Error Detection (For the error code, refer to Subsection 14.6.4)
–
–
–
–
–
[D]8060
–
–
–
–
M8039
[D]8061
*2
[D]8062
*2
[D]8063
[D]8064
[D]8065
[D]8066
*3
[D]8067
D 8068
*3
[D]8069
state
*2. Cleared when PLC power supply is turned from OFF to
M8047
ON.
*3. Cleared when PLC switches from STOP to RUN.
*4. In case of 32K steps or more, step number is stored in
[D8313, D8312].
*5. In case of 32K steps or more, step number is stored in
[D8315, D8314].
Parallel Link (Refer to Data Communication Edition for details.)
[D]8070
[D]8071
[D]8072
–
[D]8073
M8049
–
A Operation of Special Devices (M8000 -, D8000 -)
A-2 Special Data Register (D8000 to D8511)
Content of register
If the unit or block corresponding to
a programmed
I/O number is not actually loaded,
M8060 is set to ON and the first
device number of the erroneous
block is written to D8060.
Example:If X020 is unconnected.
BCD converted
1 0 2 0
value
Device number
10 to 337
1: Input X
0: Output Y
Error code for PLC hardware error
Error code for PLC/PP
communication error
Error code for serial
communication error 1 [ch1]
Error code for parameter error
Error code for syntax error
Error code for ladder error
Error code for operation error
Operation error step number
*4
latched
Error step number of M8065 to
*5
M8067
Parallel link error time-out check
time: 500 ms
Not used
Correspond-
ing special
device
M8060
M8061
M8062
M8063
M8064
M8065
M8066
M8067
M8068
M8065 to
M8067
–
–
–
–