Interface - Mitsubishi Electric M800VW Series Programming Manual

M800V/M80V Series PLC Programming Manual (2/2)
14 PLC Help Function
14.22 Operator Message Display

14.22.1 Interface

The operator message display interface is available in the two types: F type in which temporary memory F is used for
message display request and R type in which file register (R) is used for message display request. Either type is selected by
using a parameter.
 F type interface
This interface applies to 512 points of temporary memory F1024 to F1535.
The F range of the alarm message I/F can be changed with the parameter "11058 plc_opemsg0" (Operator messages display
device. Note that if it is used as the operator interface, do not use it for another purpose.
1
1 F1024
0 0
F1025
1
1
F1026
1 1
F1027
0
0 F1028
1 1
F1029
1 1
F1535
The highest priority is assigned to the F1024 signal. The message corresponding to Fn set to "1" is fetched from the message
table and displayed in order starting at F1024. If no messages are prepared or Fn without prepared message is set to "1", the
message "USER PLC ERROR n" is displayed.
 R type interface
This interface applies to file registers R308, R309, R310 and R311.
The numeric value (binary) contained in each of the R registers indicates the position of the message to be displayed in the
message table. The message is cleared by setting the R register to "0".
Therefore, the number "0" in the operator message table cannot be displayed.
Message processing module
1 R308
0 R309
20 R310
5 R311
The messages are displayed from R308, R309, R310 and R311 in order. Since message display is cleared by setting the R
register to 0, No. 0 in the table message cannot be used in the R type.
If m without prepared message is set in the R register, the message "USER PLC ERROR m" is displayed.
R2560 is also able to display an operator message by setting the No. of the operator message table. R2560 can be used
regardless of F type or R type.
10
R2560
The 1st line displays the operator message specified by R2560. While the message of R2560 is being displayed, the 2nd or
subsequent line shows the message specified by R308, R309, R310, R311 or F type.
IB-1501668-B
O0000 0th message of message table is displayed (dn1).
O0002 2nd message of message table is displayed (dn2).
O0003 3rd message of message table is displayed (dn3).
O0005 5th message of message table is displayed (dn4).
O0001 1st message of message table is displayed (dn1).
O0020 20th message of message table is displaye d (dn2).
O0005 5th message of message table is displaye d (dn3).
O0010 1st message of message table is displayed (dn).
700