Fault record structure............................................................. 56
Fault record reading............................................................... 57
Other fault record registers.....................................................58
Parameter setting group selection...............................................60
Time synchronization ..................................................................60
Real-time clock structure........................................................60
Writing to real-time structures................................................ 60
Device information.......................................................................61
ASCII character coding.......................................................... 62
ASCII string syntax.................................................................62
Reset time structure.................................................................... 63
Accessing of non-protocol-mapped data.....................................64
SPA application data........................................................................ 65
SPA protocol................................................................................65
Supported SPA data....................................................................65
Reading of SPA data...................................................................65
Reading of one register.......................................................... 66
Reading of two registers.........................................................66
Special reading of indication bits............................................67
Writing of SPA data..................................................................... 68
SPA events..................................................................................68
Event outlook..........................................................................68
SPA time synchronization............................................................69
SPA ZC-302 configuration...........................................................69
Utilization of Modbus user definable area for SPA purposes. 69
Modbus user definable area set up for SPA ZC-302 polling.. 70
Troubleshooting................................................................................71
Section 4 Modbus parameters and diagnostics............................. 73
Parameter list................................................................................... 73
Monitored data..................................................................................74
Section 5 Glossary......................................................................... 77
Table of contents
620 series
3
Communication Protocol Manual
