00192375-01 - 第127页
SIPLACE GEM for S25, HS50 SW Version GEM 502.01 HOST Inter face Manual ©Siemens AG, all rights reserved page 127 of 236 6WUHDP not used
SIPLACE GEM for S25, HS50 SW Version GEM 502.01
HOST Interface Manual
Page 126 of 236 ©Siemens AG, all rights reserved
6WUHDP
not used
SIPLACE GEM for S25, HS50 SW Version GEM 502.01
HOST Interface Manual
©Siemens AG, all rights reserved page 127 of 236
6WUHDP
not used
SIPLACE GEM for S25, HS50 SW Version GEM 502.01
HOST Interface Manual
Page 128 of 236 ©Siemens AG, all rights reserved
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Unless otherwise noted in this section, the Communications State is "Communicating"
and the Control state is either "On-Line/Local" or "On-Line/Remote".
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Assumption: Equipment's Communication state is "Enabled/Not Communicating".
Step SECS Message Description
1. H <- E S1F13 W Equipment attempts to send Establish
Communications Request.
2. If the send is not successful, or if no reply is
received from the Host, wait
„ESTABLISHCOMMUNICATIONSTIMER“
seconds, then go to step 1.
3. H -> E S1F14 The Host responds with Establish
Communications Acknowledge. If COMMACK
in this message is non-zero, wait
„ESTABLISHCOMMUNICATIONSTIMER“
seconds, then go to step 1. If COMMACK is
zero, proceed to the next step.
4. Communications is successfully established.
The Equipment changes its communication
state to Communicating. Normal SECS
message processing begins.