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SIPLACE GEM for S25HM, S27HM, HS50, HS60 SW Version GEM 503.02 HOST Inter fac e Manual ©Siemens AG, all rights reser ved page 131 of 243 4.16 Stream 14 not used

SIPLACE GEM for S25HM, S27HM, HS50 , HS60 SW Version GEM 503.02

HOST Interface Manual

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SIPLACE GEM for S25HM, S27HM, HS50, HS60 SW Version GEM 503.02

HOST Interface Manual

4.16 Stream 14

not used

SIPLACE GEM for S25HM, S27HM, HS50 , HS60 SW Version GEM 503.02

HOST Interface Manual

5 SECS Scenarios

Unless otherwise noted in this section, the Communications State is "Communicating"

and the Control state is either "On-Line/Local" or "On-Line/Remote".

5.1 Equipment Communications

5.1.1 Equipment Establishes Communications

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.