2.3.3 Implementation Table
The following table identifies the variations, function codes, and qualifiers supported by the P253 in
both request messages and in response messages.
For static (non-change-event) objects, requests sent with qualifiers 00, 01, 06, 07, or 08, will be
responded with qualifiers 00 or 01. Static object requests sent with qualifiers 17 or 28 will be
responded with qualifiers 17 or 28. For change-event objects, qualifiers 17 or 28 are always
responded.
Sends Static Data in Unsolicited Responses:
Never
When Device Restarts
When Status Flags Change
No other options are permitted.
Point Index Name/Description Roll Over value
0 TC 9999
1 BOC Settable up to 30000
2 Number of Thermal
Trip
9999
3 Authorised hot start
number
Settable up to 5
4 Authorised cold start
number
Settable up to 5
5 Total Number of
starts
9999
6 Total number of
emergency restarts
9999
No Counters Reported
Configurable (attach explanation)
16 Bits
32 Bits
Other Value
Point-by-point list attached