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4 FUNCTIONS
4.3 PROFIBUS-DPV1
Alarm acquisition function
The alarm acquisition function acquires the DP-Master on alarms or the status information occurring to DP-Slaves.
A maximum of eight pieces of information can be acquired for a DP-Slave.
Requests available on the FX5-DP-M
Alarms can be acquired by the following two methods.
• An Alarm read request (without ACK) or Alarm ACK request can be used
• Using Alarm read request (with ACK)
■
An Alarm read request (without ACK) or Alarm ACK request can be used
Use an Alarm read request (without ACK) when an interval is required until ACK is returned after an alarm is acquired from a
DP-Slave.
Alarm ACK request enables returning of ACK for each acquired alarm.
1.
An alarm occurs.
2.
Acquire the alarm from the DP-Slave. (Alarm read request (without ACK))
3.
Take action against the cause of the problem occurring to the DP-Slave.
4.
Return ACK for the alarm that has been resolved. (Alarm ACK request)
■
Using Alarm read request (with ACK)
Use Alarm read request (with ACK) to automatically return ACK to all acquired alarms after acquiring the alarms from the DP-
Slave.
1.
An alarm occurs.
2.
Acquire the alarm from the DP-Slave and return ACK to all alarms. (Alarm read request (with ACK))
3.
Take action against the cause of the problem occurring to the DP-Slave.
An alarm occurs
Alarm or status information is acquired
FX5-DP-M
Содержание FX5-DP-M
Страница 1: ...MELSEC iQ F FX5 User s Manual PROFIBUS ...
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Страница 9: ...7 MEMO ...
Страница 12: ...10 INDEX 168 REVISIONS 170 WARRANTY 171 TRADEMARKS 172 ...
Страница 13: ...11 CONTENTS ...
Страница 19: ...1 DESCRIPTION 17 1 MEMO ...
Страница 100: ...98 9 PROGRAMMING 9 2 DP Master settings DP Slave FDL address 2 ...
Страница 101: ...9 PROGRAMMING 9 2 DP Master settings 99 9 DP Slave FDL address 3 ...
Страница 108: ...106 9 PROGRAMMING 9 8 Program Example of the Global Control Function ...
Страница 109: ...9 PROGRAMMING 9 8 Program Example of the Global Control Function 107 9 ...
Страница 110: ...108 9 PROGRAMMING 9 8 Program Example of the Global Control Function ...
Страница 112: ...110 9 PROGRAMMING 9 9 Program Example of Acyclic Communication Acyclic Communication ...
Страница 114: ...112 9 PROGRAMMING 9 10 Program Example of the Alarm Acquisition Function ...
Страница 169: ...APPX Appendix 4 Processing Time 167 A MEMO ...
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