Siemens SIPLUS RIC IEC on S7 Manual page 21

‚Im_State_of_TimeStamp' and ,IM_S7_Timestamp' in Detail
Im_State_of Prior the status byte serves for handing over of time status bits, which are not supported form S7 Date and
Time Format.
_TimeStamp
TI:
DS:
SY:
IV:
LO:
Date and Time in S7-Format
IM_S7
TimeStamp
The images are initialized with the actual time of the CPU.
Info to data performance
The IEC communication blocks issue max. 1 user information per (OB1) cycle at a time. In
this cycle the information can be processed / issued also from the process blocks.
This prevents on the one hand multiple issues from the same information and with it loss of
indication changes (if the evaluation of images is carried out in the OB1 as well). On the
other hand a direct dependency from the max. data performance to the CPU cycle time
arises. This has effect with high CPU load and may lead also to congestion in the remote
station.
By programming
‚More_Info_available' and ‚Next_Info' the data performance per OB1 cycle can be in-
creased. This with minor increase of the cycle time.
SIPLUS RIC IEC on S7 V1.5
Functional description
Bit 7 Bit 6 Bit 5
Res Res Res
The TI-Bit is always set from the MAo-block.
Status bits (DS, SY, IV) are taken over from SLi-blocks only if the TI-Bit is set.
Daylight Saving Time
Direct taking over from IEC-messages with full time stamp. Otherwise:
Taking over from time status carried in the CPU (FB170-Parameter Time_DS).
Synchronized
Taking over from time status carried in the CPU (FB170-Parameter Time_SY).
The Bit is informatively and is not used in IEC-Messages
Invalid
IV arises as follows:
Receive message
with partially time stamp
without time stamp
Local time is set, if the FB170-Parameter Time_Diff is <> 0.
Taking over from time status of the CPU
The Bit is informatively and is not used in IEC-Messages.
The time arises as follows
Receive message
with partially time stamp
without time stamp
a dedicated
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Bit 4 Bit 3
LO IV
IV
It is set, if the IV-Bit in the IEC-Message (TK1, TK2, TK4)
or in the time status carried in the CPU is set (FB170-
Parameter Time_IV).
Taking over from time status carried in the CPU (FB170-
Parameter Time_IV)
S7 Date and Time
The partially time from IEC-message (TK1, TK2, TK4)
is completed to full time with the time carried in the CPU
Taking over the time carried in the CPU
loop using the
Bit 2 Bit 1 Bit 0
SY DS TI
S7_IEC_Config parameter
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