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S I P L A C E G EM S W V e r s i on G EM 505 . 03 SP 1 H O S T I n t e r f a c e M anua l ©S i e m en s A G, a ll r i gh t s r e s e r v ed page 157 o f 241 a ck no w l edge s t he t e x t m e ss age . 5 . 7 E rr o r M e…

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SIPLACE GEM SW Version GEM 505.03 SP1 HOST Interface Manual
Page 156 of 241 ©Siemens AG, all rights reserved
5.5 Process Program
Process Program supply via GEM will be implemented in a later stage.
5.6 Equipment Terminal Communications
5.6.1 Host to Equipment, Single Line
Step SECS Message Description
1. The Host has data to display at the Equipment’s
front panel.
2. H -> E S10F3 [W] Terminal Display. The Host sends text. The
Equipment displays the text on its front panel.
3. H <- E S10F4 If the W-bit in S10F3 is 1, the Equipment
acknowledges.
4. The Operator acknowledges that he/she has
read the message.
5. H <- E S6F11 W The Equipment signals CEID S10Ack. Event
Reports as appropriate.
6. H -> E S6F12 The Host acknowledges the report.
5.6.2 Host to Equipment, Multi-Line
Step SECS Message Description
1. The Host has a multi-line data to display at the
Equipment front panel.
2. H -> E S10F5 [W] Terminal Display Multiple. The Host sends text.
The Equipment displays the text on its front
panel.
3. H <- E S10F6 If W-bit in S10F5 is 1, the Equipment
acknowledges.
4. The Operator acknowledges that he/she has
read the message.
5. H <- E S10F11 W
The Equipment signals CEID {XE
„HostMsgAck“}HostMsgAck. Event Reports as
appropriate.
6. H -> E S6F12 The Host acknowledges the report.
5.6.3 Equipment Sends Text to Host
Step SECS Message Description
1. The Equipment operator enters data to send to
the Host.
2. H <- E S10F1 [W] Equipment sends text to Host. The W-bit in this
message may be either 0 or 1. The Host
displays the message for the operator.
3. H -> E S10F2 If the W-bit in S10F1 is 1, the Host
SIPLACE GEM SW Version GEM 505.03 SP1 HOST Interface Manual
©Siemens AG, all rights reserved page 157 of 241
acknowledges the text message.
5.7 Error Messages
5.7.1 Unrecognized Device ID
Step SECS Message Description
1. H -> E SnFn [W] Host sends a message with a bad Device ID in
the header. The W-bit can be either 0 or 1.
2. H <- E S9F1 Equipment replies with „Unrecognized Device
ID“.
5.7.2 Unrecognized Stream
Step SECS Message Description
1. H -> E SnFn [W] Host sends a primary message with a stream
number that the Equipment does not support.
The W-bit can be either 0 or 1.
2. H <- E S9F3 Equipment replies with „Unrecognized Stream“.
5.7.3 Unrecognized Function
Step SECS Message Description
1. H -> E SnFn [W] Host sends a primary message with a stream
number for which the Equipment recognizes
some messages, but with a function number that
the Equipment does not support for that stream.
The W-bit can be either 0 or 1.
2. H <- E S9F5 Equipment replies with „Unrecognized
Function“.
5.7.4 Illegal Data Format
Step SECS Message Description
1. H -> E SnFn [W] Host sends a message with a stream and
function that the Equipment recognizes, but with
a data format that is incorrect. The W-bit can
be either 0 or 1.
2. H <- E S9F7
SIPLACE GEM SW Version GEM 505.03 SP1 HOST Interface Manual
Page 158 of 241 ©Siemens AG, all rights reserved
5.7.5 Data Too Long
Step SECS Message Description
1. H -> E SnFn [W] Host sends a message with a stream and
function that the Equipment recognizes, but
contains more data than expected. The W-bit
can be either 0 or 1.
2. H <- E S9F11 Equipment replies with „Data Too Long“. If the
erroneous message is a primary with the W-bit
set to 1, then in come cases the Equipment will
reply with the usual secondary response with an
appropriate error code, instead of S9F11. If the
erroneous message is a secondary, the
Equipment makes no reply at all.