1–20
345 TRANSFORMER PROTECTION SYSTEM – COMMUNICATIONS GUIDE
RS485 INTERFACE
CHAPTER 1: COMMUNICATIONS GUIDE
Table 12: Generic functions in monitor direction
Selection of standard
information numbers
in control direction
Table 13: System functions in control direction
Table 14: General commands in control direction
Table 15: General functions in control direction
Basic application
functions
INF
Semantics
□
<240>
Read headings of all defined groups
□
<241>
Read values or attributes of all entries of one group
□
<243>
Read directory of a single entry
□
<244>
Read value or attribute of a single entry
□
<245>
End of general interrogation of generic data
□
<249>
Write entry with confirmation
□
<250>
Write entry with execution
□
<251>
Write entry aborted
INF
Semantics
⊠
<0>
Initiation of general interrogation
⊠
<0>
Time synchronization
INF
Semantics
□
<16>
Auto-recloser on / off
□
<17>
Teleprotection on / off
□
<18>
Protection on / off
□
<19>
LED reset
□
<23>
Activate characteristic 1
□
<24>
Activate characteristic 2
□
<25>
Activate characteristic 3
□
<26>
Activate characteristic 4
INF
Semantics
□
<240>
Read headings of all defined groups
□
<241>
Read values or attributes of all entries of one group
□
<243>
Read directory of a single entry
□
<244>
Read value or attribute of a single entry
□
<245>
General interrogation of generic data
□
<248>
Write entry
□
<249>
Write entry with confirmation
□
<250>
Write entry with execution
□
<251>
Write entry abort
□
Test mode
□
Blocking of monitor direction
□
Disturbance data
□
Generic services
□
Private data