Mitsubishi QJ71MB91 User Manual page 328

11
TROUBLESHOOTING
(5) Automatic communication operation status storage area
11
- 23 11.4 Error Codes
11.4.1 Error code storage area
(c) Error device type to be stored
The following values are stored to show the error device type when the
MODBUS device assignment parameter setting, error completed (X9) turns ON.
Error, device type
Coil
Input
Input register
Holding register
The operation statuses of the automatic communication function are stored in bit
format in correspondence with automatic communication parameters 1 to 32.
The operation statuses are stored in the relevant bit positions, from low-order to high-
order bits, in order of automatic communication parameters 1 to 32.
(CH1 Automatic communication operation status storage area)
b15 b14 b13 b12 b11 b10
16 15 14 13 12 11
0C20
H
32 31 30 29 28 27
0C21
H
(CH2 Automatic communication operation status storage area)
b15 b14 b13 b12 b11 b10
16 15 14 13 12 11
0C22
H
32 31 30 29 28 27
0C23
H
0: Operating normally/automatic communication parameter not
set/automatic communication function stopped
1: Automatic communication error occurred
Figure 11.5 Configuration of automatic communication function operation status storage area
Table11.12 Device type to be stored
. . .
. . .
. . .
. . .
. . .
. . .
Number indicates number of automatic
communication parameter.
Value to be stored
0001 (1)
H
0002 (2)
H
0004 (4)
H
0005 (5)
H
b5 b4 b3 b2 b1 b0
6 5 4 3 2 1
22 21 20 19 18 17
b5 b4 b3 b2 b1 b0
6 5 4 3 2 1
22 21 20 19 18 17