Siemens SIMATIC PCS 7 Function Manual page 62

OpenPCS 7 interface
6.5 OPC Alarms and Events (OPC A&E)
ChangeMask
The "ChangeMask" parameter keeps track of where the message status was changed.
Parameter values of ChangeMask:
● OPC_CHANGE_ACTIVE_STATE
● OPC_CHANGE_ENABLE_STATE
● OPC_CHANGE_ACK_STATE
NewState
The "NewState" parameter indicates the message status after a change.
Parameter values of NewState:
● OPC_CONDITION_ACTIVE
● OPC_CONDITION_ENABLED
● OPC_CONDITION_ACKED
PCS 7 OS
Message came in
Message went out with
acknowledgment
Message went out without
acknowledgment
Acknowledged messages
(message still pending)
Acknowledged messages
(message no longer
pending)
Locked message
Unlocked message
Came in, acknowledged
message
Came in, went out
message with
acknowledgment
62
NewState
OPC_CONDITION_ACTIVE
OPC_CONDITION_ENABLED
OPC_CONDITION_ACKED
OPC_CONDITION_ENABLED
OPC_CONDITION_ENABLED
OPC_CONDITION_ACTIVE
OPC_CONDITION_ACKED
OPC_CONDITION_ENABLED
OPC_CONDITION_ACKED
OPC_CONDITION_ENABLED
-
OPC_CONDITION_ENABLED
OPC_CONDITION_ACTIVE
OPC_CONDITION_ACKED
OPC_CONDITION_ENABLED
OPC_CONDITION_ACKED
OPC_CONDITION_ENABLED
ChangeState
OPC_CHANGE_ACTIVE_STATE
OPC_CHANGE_ACTIVE_STATE
OPC_CHANGE_ACTIVE_STATE
OPC_CHANGE_ACK_STATE
OPC_CHANGE_ACK_STATE
OPC_CHANGE_ENABLED_STAT
E
OPC_CHANGE_ENABLED_STAT
E
OPC_CHANGE_ACTIVE_STATE
OPC_CHANGE_ACK_STATE
Function Manual, 05/2012, A5E02780178-02
OpenPCS 7