Areva MiCOM P921 - Page 193

Technical Guide P92x/EN CT/E11
Modbus Protocol
MiCOM P921-P922-P923 Page 3/118
2.3 Setting Changes 74
2.4 Systems Integration Data 74
2.4.1 Address of the relay 74
2.4.2 Measured Values 75
2.4.3 Status word 75
2.4.4 Unit Status word 75
2.4.5 Control status word 75
2.4.6 Logic Input status word 76
2.4.7 Output Relay Status word 76
2.4.8 Alarm Information 76
2.4.9 Protection Indication 76
2.4.10 Control and supervision 78
2.4.11 Remote Change of setting 79
2.5 Events Extraction (MiCOM P922 and P923 only) 79
2.5.1 Automatic Event Extraction 79
2.5.2 Events Types 79
2.5.3 Event Format 80
2.5.4 Manual record Extraction 80
2.6 Disturbance Record Extraction 80
3. APPENDIX 1 81
4. IEC60870-5-103 INTERFACE 109
4.1 Physical Connection and Link Layer 109
4.2 Initialization 109
4.3 Time Synchronization (P922 & P932 only) 110
4.4 Spontaneous Events (P922 & P923 only) 110
4.5 General Interrogation 110
4.6 Cyclic Measurements 110
4.7 Commands 110
4.8 Disturbance Records (P922 & P923 only) 111
4.9 Blocking of Monitor Direction 111
5. APPENDIX 2 112
5.1 IEC 60870-5-103 DATABASES 112
5.1.1 List of Events produced by the relay 112
5.1.2 System State 114