Siemens SITRANS FST030 - Page 299

Group Bit Alarm ID Restrictions Associated alarm
class
Alarm items 9
(Process alarms 4)
0 Standard density above alarm limit 256 Only hydrocarbon ap‐
plications
PA
1 Standard density above warning limit 257 PW
2 Standard density below warning limit 258 PW
3 Standard density below alarm limit 259 PA
4 API gravity above alarm limit 260 Only hydrocarbon ap‐
plications
PA
5 API gravity above warning limit 261 PW
6 API gravity below warning limit 262 PW
7 API gravity below alarm limit 263 PA
8 Standard API gravity above alarm limit 264 Only hydrocarbon ap‐
plications
PA
9 Standard API gravity above warning limit 265 PW
10 Standard API gravity below warning limit 266 PW
11 Standard API gravity below alarm limit 267 PA
12 Specific gravity above alarm limit 268 Only hydrocarbon ap‐
plications
PA
13 Specific gravity above warning limit 269 PW
14 Specific gravity below warning limit 270 PW
15 Specific gravity below alarm limit 271 PA
16 Standard specific gravity above alarm limit 272 Only hydrocarbon ap‐
plications
PA
17 Standard specific gravity above warning
limit
273 PW
18 Standard specific gravity below warning
limit
274 PW
19 Standard specific gravity below alarm limit 275 PA
20 LiquIdent above alarm limit 276 Only hydrocarbon ap‐
plications
PA
21 LiquIdent above warning limit 277 PW
22 LiquIdent below warning limit 278 PW
23 LiquIdent below alarm limit 279 PA
24 Reserved 280
25 Reserved 281
26 Reserved 282
27 Reserved 283
28 Reserved 284
29 Reserved 285
30 Reserved 286
31 Reserved 287
PA Process value alarm (NAMUR: Out of specification)
PW Process value warning (NAMUR: Out of specification)
FC Function check
MR Maintenance required (NAMUR: Maintenance required)
MD Maintenance demanded (NAMUR: Maintenance required)
MA Maintenance alarm (NAMUR: Failure)
Modbus communication
A.9 Modbus holding registers tables
SITRANS FST030 (Modbus)
Operating Instructions, 08/2018, A5E37367739-AD 299