Mitsubishi Electric NZ2GF-ETB, User Manual

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APPENDICES
A
Appendix
4
Special
Relay (
S
M
) List
Appendix 4
Special Relay (SM) List
The special relays (SM) are internal relays whose applications are predetermined in the Ethernet adapter module.
However, they can be turned on or off as necessary for control of the Ethernet adapter module.
The following table shows how to read the special relay list.
Do not change any system-set special relay by using a dedicated instruction or SLMP. Doing so may result in a system down
or a communication failure.
Item Description
No. Special relay (SM) number
Name Special relay (SM) name
Description Content of the special relay (SM)
Details Detailed description of the special relay (SM)
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.
• Write: Set when data are written.