Mitsubishi MELSEC LJ71C24, User Manual

Page: 282 / 428

15 - 13 15 - 13
15 TROUBLESHOOTING
15.1.6 How to read the current operation status
This section explains how to read the current operation status of the C24.
When using GX Works2, check in the "Intelligent Function Module Monitor" screen.
(Refer to the GX Works2 Version1 Operating Manual (Intelligent Function Module).)
REMARKS
• The status of the switch settings by GX Works2 can be checked by performing
read operations as described in Section 15.1.5.
• Refer to Section 7.3 for the switch settings.
(1) Operation mode status storage area
The current operation status of the C24 is stored into the following buffer memory
areas.
1) Station No. (instruction setting) (address: 24F
H
)
b0
(Station No.) 0 to 31
b15
Buffer memory address 24F
H
to
2) Communication protocol status (address: 252
H
/262
H
)
b0
Mode number currently operating
Buffer memory address 252
H
262
H
(Information on the CH2 side)
(Information on the CH1 side) 0 to 9
0 to 7,9
b15
to
3) Transmission status (address : 253
H
/263
H
)
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
For the system
Buffer memory address 253
H
263
H
(Information on the CH2 side)
(Information on the CH1 side)
1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0
1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0 1/0
Operation setting
Data bit setting
Parity bit setting
Even/odd parity setting
Stop bit setting
Sum check code setting
Online Change setting
Setting modification allow/prohibit
0 0 0 0
0 0 0 0
Transmission
speed setting