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138
APPX
Appendix 4 Remote Buffer Memory
Appendix 4
Remote Buffer Memory
Remote buffer memory is divided into a parameter area, monitor area, and module control data area for each address.
The initial value is set in remote buffer memory at power-on or hardware reset.
Do not read/write data from/to a use prohibited area of remote buffer memory. If data is read or written, the
correct operation of the safety remote I/O module cannot be guaranteed.
Remote buffer memory list
The remote buffer memory list of the safety remote I/O module is shown below.
The remote buffer memory of the safety remote I/O module is allocated as follows.
Parameter area
Parameters can be set in these areas using the parameter setting window of the engineering tool. Parameters cannot be set
using the program.
If these parameters are changed, the safety module valid flag (RWr0.b0) turns OFF and the safety remote I/O module enters
the standby mode.
For details on the standby mode, refer to the following.

Page 31 Operation mode and state transition
• Always use the engineering tool to set parameters.
• When a use-prohibited area is read from/written to, the dedicated instruction is completed successfully.
■
Parameter data per station
 : Enabled,  : Disabled
Remote buffer memory address Area Target
Decimal Hexadecimal
0 to 255 0000H to 00FFH Parameter area Parameter data per station
256 to 511 0100H to 01FFH Parameter data per module
512 to 1279 0200H to 04FFH Use prohibited
1280 to 2559 0500H to 09FFH Monitoring area Use prohibited
2560 to 5375 0A00H to 14FFH Module control data area Use prohibited
Address Name Default
value Read Write
Decimal Hexadecimal
0 0000H Safety setting Transmission interval monitoring
time 35
 
1 0001H I/O LED indication setting at error
occurrence 0  
2 0002H Safety approval code FFFFFFFFH
 
3 0003H
4 to 10 0004H to 000AH Use prohibited   
11 000BH Communication speed setting 0  
12 to 255 000CH to 00FFH Use prohibited
  