108
APPX
Appendix 4 Buffer Memory Areas
Appendix 4
Buffer Memory Areas
List of buffer memory areas
This section lists the buffer memory areas of the multiple input module. For details on the buffer memory, refer to the following.
Page 121 Details of buffer memory addresses
The buffer memory areas of the multiple input module are classified into the data types described below.
Do not write data to the system areas and areas whose data types are monitor in the buffer memory. Writing
data into these areas can cause the malfunction of the module.
In the normal mode
: With refresh setting,
: Without refresh setting
■
Un\G0 to Un\G399
Data type
Description
Setting data
Description
The data to be customized to suit the connected devices and the purpose of the system.
Read and write
attributes
Read and write is possible.
Setting procedure
Use GX Works3 or a program to set the data.
Setting timing
After a change of value, turning off
→
on
→
off 'Operating condition setting request' (Un\G70, b9)
allows the setting value to take effect.
Control data
Description
The data used for controlling the multiple input module.
Read and write
attributes
Read and write is possible.
Setting procedure
Use GX Works3 or a program to set the data.
Setting timing
As soon as the values are changed, the set values become effective.
Monitor data
Description
The data used for checking the status of the multiple input module.
Read and write
attributes
Only read is possible and write is not possible.
Setting procedure
Setting timing
Address
(decimal)
Address
(hexadecimal)
Name
Default value
Data type
Auto refresh
0
0H
Latest error code
0
Monitor
1
1H
Latest address of error history
0
Monitor
2
2H
Latest alarm code
0
Monitor
3
3H
Latest address of alarm history
0
Monitor
4 to 29
4H to 1DH
System area
30
1EH
Module Information
61E0H
Monitor
31
1FH
Firmware version
0
Monitor
32 to 35
20H to 23H
System area
36
24H
Warning output flag (Process alarm upper limit)
0000H
Monitor
37
25H
Warning output flag (Process alarm lower limit)
0000H
Monitor
38
26H
Warning output flag (Rate alarm upper limit)
0000H
Monitor
39
27H
Warning output flag (Rate alarm lower limit)
0000H
Monitor
40
28H
Input signal error detection flag
0000H
Monitor
41
29H
Disconnection detection flag
0000H
Monitor
42
2AH
Conversion completed flag
0000H
Monitor
43 to 59
2BH to 3BH
System area
60
3CH
Operation mode monitor
0
Monitor
61 to 68
3DH to 44H
System area
69
45H
Input signals
0
Monitor
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