Summary
iv
User Log ............................................................................................................................................ 218
ClearRtuDiagnostic ............................................................................................................................ 221
ClearEventQueue ............................................................................................................................... 221
SNMP ....................................................................................................................................................... 222
Introduction ....................................................................................................................................... 222
SNMP in Nexto CPUs ....................................................................................................................... 222
Private MIB ....................................................................................................................................... 223
Configuration..................................................................................................................................... 226
User and SNMP Communities ........................................................................................................... 227
User Management and Access Rights ..................................................................................................... 228
5. INITIAL PROGRAMMING ................................................................................................................... 229
Memory Organization and Access .......................................................................................................... 229
Project Profiles......................................................................................................................................... 231
Single ................................................................................................................................................ 232
Basic ................................................................................................................................................. 232
Normal .............................................................................................................................................. 232
Expert ................................................................................................................................................ 233
Custom .............................................................................................................................................. 234
Machine Profile ................................................................................................................................. 234
General Table .................................................................................................................................... 235
Maximum Number of Tasks............................................................................................................... 235
CPU Configuration .................................................................................................................................. 237
Libraries ................................................................................................................................................... 238
Inserting a Protocol Instance ................................................................................................................... 238
MODBUS RTU ................................................................................................................................. 239
MODBUS Ethernet ............................................................................................................................ 240
Server IEC 60870-5-104 .................................................................................................................... 242
Finding the Network ................................................................................................................................ 245
Login ........................................................................................................................................................ 247
Run Mode................................................................................................................................................. 248
Stop Mode ................................................................................................................................................ 250
Writing and Forcing Variables ............................................................................................................... 250
Logout ...................................................................................................................................................... 251
Project Upload ......................................................................................................................................... 251
CPU Operating States .............................................................................................................................. 253
Run .................................................................................................................................................... 253
Stop ................................................................................................................................................... 253
Breakpoint ......................................................................................................................................... 253
Exception .......................................................................................................................................... 253
Reset Warm ....................................................................................................................................... 253
Reset Cold ......................................................................................................................................... 253
Reset Origin....................................................................................................................................... 253
Reset Process Command (IEC 60870-5-104) ...................................................................................... 254
Programs (POUs) and General Variable Lists (GVLs) .......................................................................... 254
MainPrg Program .............................................................................................................................. 254
StartPrg Program ............................................................................................................................... 254
UserPrg Program ............................................................................................................................... 254
GVL Disables .................................................................................................................................... 254
GVL IOQualities ............................................................................................................................... 255
GVL Module_Diagnostics ................................................................................................................. 256
GVL Qualities ................................................................................................................................... 257
GVL ReqDiagnostics ......................................................................................................................... 259
GVL System_Diagnostics .................................................................................................................. 261