User`s guide

Item Names 39
Alarms and Events
The Wonderware Siemens SIMATIC NET S7 I/O Server offers the possibility to read
Alarms and Events generated either by SFB33 to SFB36 (Alarms) or by the Symbol
Editor (Events).
The item syntax for Alarms and Events is as follows:
ALARM<EV_ID>.<Extension 1>[,<Extension 2>[<Suffix>]]
EVENT<EV_ID>.<Extension 1>[,<Extension 2>[<Suffix>]]
For valid values for Extension 1, Extension 2 and Suffix and for valid combinations
please refer to the following table:
Item Extension 1 Extension 2 Suffix Message Range
ALARM<EV_ID>
EVENT_STATE Integer 0 to 65535
STATE Integer 0 to 65535
ACK_STATE Integer 0 to 65535
TIME_STAMP Message String
NO_ADD_VALUES Integer 0 to 10
ADD_VALUEw
DATA_TYPE Message String
LENGTH Integer 0 to 65535
Xx.y
Discrete 0 or 1
Sx,v
Message String
STRINGx,v
Message String
Bx
Integer 0 to 255
BYTEx
Integer 0 to 255
DT Message String
Bx
Message Hex ASCII String
BYTEx,v
Message Hex ASCII String
CHARx
Integer -128 to 127
DT Message String
CHARx,v
Message Hex ASCII String
Wn
Integer 0 to 65535
WORDn
Integer 0 to 65535
BCD Integer 0 to 9999
KT Message 0.0 to 999.3
S5T Message 0ms to 2h46m30s
D Message String
Wn,v
Message Hex ASCII String
WORDn,v
Message Hex ASCII String
INTn
Integer -32768 to 32767
BCD Integer 0 to 9999
D Message String
INTn,v
Message Hex ASCII String
Dm
Integer 0 to 2147483647
DWORDm
Integer 0 to 2147483647
BCD Integer 0 to 99999999
T Message String
TOD Message String
Dm,v
Message Hex ASCII String
DWORDm,v
Message Hex ASCII String
DINTm
Integer -2147483648 to 2147483647
BCD Integer 0 to 99999999
T Message String
TOD Message String