Mitsubishi Electric NZ2GF-ETB, User Manual

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APPENDICES
A
Appendix
5 Special Regist
e
r (S
D) List
Appendix 5
Special Register (SD) List
The special registers (SD) are internal registers whose applications are predetermined in the Ethernet adapter module.
However, data can be written as necessary for control of the Ethernet adapter module. Data are stored in the special
registers as binary values unless otherwise specified.
The following table shows how to read the special register list.
Do not change any system-set special register by using a dedicated instruction or SLMP. Doing so may result in a system
down or a communication failure.
Item Description
No. Special register (SD) number
Name Special register (SD) name
Description Content of the special register (SD)
Details Detailed description of the special register (SD)
Set by
(Set timing)
Setting side and, in the case of system setting, the timing
■ Set by
• S: Set by the system
• U: Set by the user (by a dedicated instruction, SLMP, etc.)
• S/U: Set by both the system and user
■
Set timing
Only in the case of system setting, the timing is indicated.
• Initial: Set during initial processing (after power-on or reset)
• Status change: Set when the operating status is changed.
• Error: Set when an error occurred.
• Switch change: Set when the switch is changed.
• Write: Set when data are written.