The setting changes performed by either of the two operations defined above are made to the scratchpad
area. These changes must be confirmed by writing to register 4x0405.
The active protection setting groups can be selected by writing to register 40404. An illegal data response
will be returned if an attempt is made to set the active group to one that has been disabled.
9.10
TIME SYNCHRONISATION
The date-time data type G12 allows
real
date and time information to be conveyed to a resolution of 1 ms.
The structure of the data type is compliant with the IEC 60870-5-4
Binary Time 2a
format.
The seven bytes of the date/time frame are packed into four 16-bit registers and are transmitted in sequence
starting from byte 1. This is followed by a null byte, making eight bytes in total.
Register data is usually transmitted starting with the highest-order byte. Therefore byte 1 will be in the high-
order byte position followed by byte 2 in the low-order position for the first register. The last register will
contain just byte 7 in the high order position and the low order byte will have a value of zero.
G12 date & time data type structure
Bit Position
Byte
7
6
5
4
3
2
1
0
1
m7
m6
m5
m4
m3
m2
m1
m0
2
m15
m14
m13
m12
m11
m10
m9
m8
3
IV
R
I5
I4
I3
I2
I1
I0
4
SU
R
R
H4
H3
H2
H1
H0
5
W2
W1
W0
D4
D3
D2
D1
D0
6
R
R
R
R
M3
M2
M1
M0
7
R
Y6
Y5
Y4
Y3
Y2
Y1
Y0
Key to table:
●
m = milliseconds: 0 to 59,999
●
I = minutes: 0 to 59
●
H = hours: 0 to 23
●
W = day of the week: 1 to 7 starting from Monday
●
D = day of the month: 1 to 31
●
M = month of the year: 1 to 12 starting from January
●
Y = year of the century: 0 to 99
●
R = reserved: 0
●
SU = summertime: 0 = GMT, 1 = summertime
●
IV = invalid: 0 = invalid value, 1 = valid value
Since the range of the data type is only 100 years, the century must be deduced. The century is calculated
as the one that will produce the nearest time value to the current date. For example: 30-12-99 is 30-12-1999
when received in 1999 & 2000, but is 30-12-2099 when received in 2050. This technique allows 2 digit years
to be accurately converted to 4 digits in a ±50 year window around the current date.
The invalid bit has two applications:
●
It can indicate that the date-time information is considered inaccurate, but is the best information
available.
●
It can indicate that the date-time information is not available.
MiCOM P747
Chapter 7 - SCADA Communications
P747-TM-EN-1
221
P747-TM-EN-1.1
Summary of Contents for MiCOM P747 Agile
Page 2: ......
Page 16: ...Contents MiCOM P747 xiv P747 TM EN 1 P747 TM EN 1 1...
Page 20: ...Table of Figures MiCOM P747 xviii P747 TM EN 1 P747 TM EN 1 1...
Page 21: ...INTRODUCTION CHAPTER 1...
Page 22: ...Chapter 1 Introduction MiCOM P747 2 P747 TM EN 1 P747 TM EN 1 1...
Page 31: ...SAFETY INFORMATION CHAPTER 2...
Page 32: ...Chapter 2 Safety Information MiCOM P747 12 P747 TM EN 1 P747 TM EN 1 1...
Page 42: ...Chapter 2 Safety Information MiCOM P747 22 P747 TM EN 1 P747 TM EN 1 1...
Page 43: ...HARDWARE DESIGN CHAPTER 3...
Page 44: ...Chapter 3 Hardware Design MiCOM P747 24 P747 TM EN 1 P747 TM EN 1 1...
Page 74: ...Chapter 3 Hardware Design MiCOM P747 54 P747 TM EN 1 P747 TM EN 1 1...
Page 75: ...CONFIGURATION CHAPTER 4...
Page 76: ...Chapter 4 Configuration MiCOM P747 56 P747 TM EN 1 P747 TM EN 1 1...
Page 117: ...PROTECTION FUNCTIONS CHAPTER 5...
Page 118: ...Chapter 5 Protection Functions MiCOM P747 98 P747 TM EN 1 P747 TM EN 1 1...
Page 160: ...Chapter 5 Protection Functions MiCOM P747 140 P747 TM EN 1 P747 TM EN 1 1...
Page 161: ...MONITORING AND CONTROL CHAPTER 6...
Page 162: ...Chapter 6 Monitoring and Control MiCOM P747 142 P747 TM EN 1 P747 TM EN 1 1...
Page 211: ...SCADA COMMUNICATIONS CHAPTER 7...
Page 212: ...Chapter 7 SCADA Communications MiCOM P747 192 P747 TM EN 1 P747 TM EN 1 1...
Page 259: ...REDUNDANT ETHERNET CHAPTER 8...
Page 260: ...Chapter 8 Redundant Ethernet MiCOM P747 240 P747 TM EN 1 P747 TM EN 1 1...
Page 293: ...CYBER SECURITY CHAPTER 9...
Page 294: ...Chapter 9 Cyber Security MiCOM P747 274 P747 TM EN 1 P747 TM EN 1 1...
Page 313: ...SETTINGS APPLICATION SOFTWARE CHAPTER 10...
Page 314: ...Chapter 10 Settings Application Software MiCOM P747 294 P747 TM EN 1 P747 TM EN 1 1...
Page 322: ...Chapter 10 Settings Application Software MiCOM P747 302 P747 TM EN 1 P747 TM EN 1 1...
Page 323: ...BUSBAR COMMISSIONING TOOL CHAPTER 11...
Page 324: ...Chapter 11 Busbar Commissioning Tool MiCOM P747 304 P747 TM EN 1 P747 TM EN 1 1...
Page 330: ...Chapter 11 Busbar Commissioning Tool MiCOM P747 310 P747 TM EN 1 P747 TM EN 1 1...
Page 331: ...SCHEME LOGIC CHAPTER 12...
Page 332: ...Chapter 12 Scheme Logic MiCOM P747 312 P747 TM EN 1 P747 TM EN 1 1...
Page 348: ...Chapter 12 Scheme Logic MiCOM P747 328 P747 TM EN 1 P747 TM EN 1 1...
Page 349: ...INSTALLATION CHAPTER 13...
Page 350: ...Chapter 13 Installation MiCOM P747 330 P747 TM EN 1 P747 TM EN 1 1...
Page 361: ...COMMISSIONING INSTRUCTIONS CHAPTER 14...
Page 362: ...Chapter 14 Commissioning Instructions MiCOM P747 342 P747 TM EN 1 P747 TM EN 1 1...
Page 387: ...MAINTENANCE AND TROUBLESHOOTING CHAPTER 15...
Page 388: ...Chapter 15 Maintenance and Troubleshooting MiCOM P747 368 P747 TM EN 1 P747 TM EN 1 1...
Page 403: ...TECHNICAL SPECIFICATIONS CHAPTER 16...
Page 404: ...Chapter 16 Technical Specifications MiCOM P747 384 P747 TM EN 1 P747 TM EN 1 1...
Page 425: ...SYMBOLS AND GLOSSARY APPENDIX A...
Page 426: ...Appendix A Symbols and Glossary MiCOM P747 406 P747 TM EN 1 P747 TM EN 1 1...
Page 443: ...COMMISSIONING RECORD APPENDIX B...
Page 444: ...Appendix B Commissioning Record MiCOM P747 424 P747 TM EN 1 P747 TM EN 1 1...
Page 449: ...WIRING DIAGRAMS APPENDIX C...
Page 450: ...Appendix C Wiring Diagrams MiCOM P747 430 P747 TM EN 1 P747 TM EN 1 1...
Page 456: ...Appendix C Wiring Diagrams MiCOM P747 436 P747 TM EN 1 P747 TM EN 1 1...
Page 457: ......