Mitsubishi MELSEC LJ71C24, User Manual

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15 - 11 15 - 11
15 TROUBLESHOOTING
15.1.5 Reading the switch setting status
This section explains how to read the switch setting 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
(1) The switch settings can be changed when the mode is switched or when the
UINI instruction is executed. (The station No. setting can be changed only when
the UINI instruction is executed.)
For details, refer to the User's Manual (Application).
For how to read the current operating status after the mode is switched or the
UINI instruction is completed, refer to Section 15.1.6.
(2) For details of the switch setting, refer to Section 7.3 and Section 15.1.2.
(1) Setting status storage area
The switch settings by GX Works2 and setting error information are stored in
different areas of the buffer memory shown below.
1) Station No. (switch setting) (address: 200
H
)
b0
Buffer memory address 200
H
(Station number)
0 to 31
b15 to
2) Switch setting error and mode switching error status (address: 203
H
)
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
Buffer memory address 203
H
Ignore (including b2 and b6)
Mode switching request was
issued when the setting
modification allow/prohibit was
set to prohibit.
(1: Error, 0: Normal)
1/0 1/0 1/0 1/0 1/0 1/0 1/0
Linked operation setting error
(Refer to Section 7.3.5)
CH2 CH2 CH2 CH1 CH1 CH1
Communication protocol number on
CH side is outside the range.
Communication rate on CH side
is outside the range.
1/0
Station number of C24 is
outside the range.
3) Communication protocol status (address: 250
H
/260
H
)
b0
Buffer memory address 250
H
260
H
(Information on the CH2 side)
(Information on the CH1 side) 0 to 9
0 to 7,9
b15 to
4) Transmission setting status (address: 251
H
/261
H
)
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
For the system
Data bit setting
Operation setting
Buffer memory address 251
H
261
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
0 0 0 0
0 0 0 0
Setting modification
allow/prohibit
Transmission
speed setting