00192402-01 - 第132页
GEM for SIPLACE V7.01 Page 132 of 251 ©Siemens AG, all rights r eserved /RVLQJ&RQQHFWLRQ 5H&RQQHFWLQJ Step SECS Mes sage Descri ptio n 1. H <- E SxFy Any Message. T he Equipm ent encounters SECS blo…
GEM for SIPLACE V7.01
©Siemens AG, all rights reserved page 131 of 251
+RVW(VWDEOLVKHV&RPPXQLFDWLRQV
Assumption: Equipment's Communication state is either "Enabled/Not Communicating"
or "Enabled/Communicating".
Step SECS Message Description
1. H -> E S1F13 W Host sends Establish Communications
Request.
2. H <- E S1F14 The Equipment responds with Establish
Communications Acknowledge, with
COMMACK set to zero. After this message is
successfully sent, communications is
established. If the current communication state
is „Not Communicating“, the Equipment
changes its communication state to
„Communicating“. If the state is
„Communicating“, no change in communication
state occurs. In either case, subsequently
received messages are processed normally.
6LPXOWDQHRXV(VWDEOLVK
Assumption: Equipment's Communication state is "Enabled/Not Communicating".
Step SECS Message Description
1. H <- E S1F13 W Equipment sends Establish Communications
Request.
2. H -> E S1F13 W Host sends Establish Communications
Request.
3. H <- E S1F14 The Equipment responds with Establish
Communications Acknowledge, with
COMMACK set to zero. After this message is
successfully sent, communications is
established. The Equipment changes its
communication state to Communicating.
4. H -> E S1F14 The Host responds with Establish
Communications Acknowledge, with
COMMACK set to zero. This step could occur
before step 3, in which case communications
would be established at this step.
GEM for SIPLACE V7.01
Page 132 of 251 ©Siemens AG, all rights reserved
/RVLQJ&RQQHFWLRQ5H&RQQHFWLQJ
Step SECS Message Description
1. H <- E SxFy Any Message. The Equipment encounters
SECS block transmission errors while
attempting to send a message to the Host.,
and reaches its Retry Limit (RTY). The
Equipment considers the SECS link as
disconnected. Spooling will become Active if
enabled.
2. H <-E S1F13 W Connect Request. The Equipment attempts to
re-establish the link.
3. If the send is not successful, or if no reply is
received from the Host, the Equipment waits
for „EstablishCommunicationsTimer“ seconds
and then goes back to step 2.
4. H -> E S1F14 The Host acknowledges, sending COMMACK
of „0“. The link is now re-connected.
+HDUWEHDW
Step SECS Message Description
1. H <- E S1F1 W Are You There. The Equipment sends this
message periodically to determine if the SECS
link is still intact.
2. H -> E S1F2 On Line Data. The Host replies. The
Equipment knows that the link is still intact.
GEM for SIPLACE V7.01
©Siemens AG, all rights reserved page 133 of 251
'DWD&ROOHFWLRQ
+RVW,QLWLDOL]HV(YHQW
Step SECS Message Description
1. H -> E S2F37 W Disable Event Reports. The Host disables
reporting for all Collection Events.
S2F37 W
<L [2]
<BOOLEAN F>
<L>
> .
2. H <- E S2F38 The Equipment acknowledges. Temporarily,
the Equipment will make no event reports.
3. H ->E S2F33 W Define Report. The Host erases all previous
Report definitions and Links:
S2F33 W
<L [2]
<U4 DATAID>
<L>
> .
4. H <- E S2F34 The Equipment acknowledges.
5. H -> E S2F33 W Define Report. The Host sends Report
Definitions.
6. H <-E S2F34 The Equipment Acknowledges.
7. H -> E S2F35 W Link Events/Reports. The Host links reports to
the desired Collection Events. Linked Reports
are initially „disabled“.
8. H <- E S2F36 The Equipment acknowledges
9. H -> E S2F15 W Equipment Constant Send. The Host sets
Equipment constant RpType to indicate
whether Event Reports should be in Normal or
Annotated format.
10. H <- E S2F16 The Equipment acknowledges
11. H -> E S2F37 W Enable Event Reports. The Host enables
reporting for desired Collection Events.
12. H <- E S2F38 The Equipment acknowledges. From this point
on, the Equipment will report events as they
occur.