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SEMI E5-1104 © SEMI 1982, 2004 60 Stream,Function Name (Mnemonic) Direction S1,F3 Selected Equipment Status Request (SSR) S,H-> E,reply Description A request to the equipment to report selected values of its status . …

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SEMI E5-1104 © SEMI 1982, 2004 59
1. The message shall contain all Lists and Data Items shown as required in the Message Definition.
2. The message shall not contain any Lists or Data Items not shown in the Message Definition, unless the Message
Definition specifically allows this.
3. The message shall not contain any List Item or Data Item with zero length unless the Message Definition
specifically defines a meaning for such a zero length item.
10.4 Stream 0 and Function 0 — Stream 0 is always defined as not used since a 0 is the most likely error. No
functions are defined in stream 0.
10.4.1 Function 0 exists in all streams and has the same special meaning in each stream. A function 0 message
closes a transaction, so that the originator will not have to wait for a transaction timeout to proceed. Function 0 is
sent in lieu of the expected secondary message when the interpreter cannot, because of a transmission error or some
other reason, respond with the expected reply. It is not a requirement that the interpreter send function 0 to close a
transaction.
10.5 Stream 1 Equipment Status — This stream provides a means for exchanging information about the status of the
equipment, including its current mode, depletion of various consumable items, and the status of transfer operations.
Stream,Function Name (Mnemonic) Direction
S1,F0 Abort Transaction (S1F0) S,H<->E
Description
Used in lieu of an expected reply to abort a transaction. Function 0 is defined in every stream and has the same meaning in every
stream.
Structure
Header only
Exception
None
Stream,Function Name (Mnemonic) Direction
S1,F1 Are You There Request (R) S,H<->E,reply
Description
Establishes if the equipment is on-line. A function 0 response to this message means the communication is inoperative. In the
equipment, a function 0 is equivalent to a timeout on the receive timer after issuing S1,F1 to the host.
Structure
Header only
Exception
None
Stream,Function Name (Mnemonic) Direction
S1,F2 On Line Data (D) S,H<->E
Description
Data signifying that the equipment is alive.
Structure
L,2
1. <MDLN>
2. <SOFTREV>
Exception
The host sends a zero-length list to the equipment.
SEMI E5-1104 © SEMI 1982, 2004 60
Stream,Function Name (Mnemonic) Direction
S1,F3 Selected Equipment Status Request (SSR) S,H->E,reply
Description
A request to the equipment to report selected values of its status.
Structure
The following structure is approved for all item formats and should be used by all new
implementations:
L,n
1. <SVID
1
>
.
.
n. <SVID
n
>
The following structure is included for compatibility with previous implementations
and may only be used for items of format 3() and 5():
<SVID
1
,...,SVID
n
>
Exception
A zero-length list (structure 1) or item (structure 2) means report all SVIDs.
Stream,Function Name (Mnemonic) Direction
S1,F4 Selected Equipment Status Data (SSD) M,H<-E
Description
The equipment reports the value of each SVID requested in the order requested. The host remembers the names of values
requested.
Structure
L,n
1. <SV
1
>
.
.
n. <SV
n
>
Exception
A zero-length list item for SV
i
means that SVID
i
does not exist.
Stream,Function Name (Mnemonic) Direction
S1,F5 Formatted Status Request (FSR) S,H->E,reply
Description
A request for the equipment to report the status according to a pre-defined fixed format.
Structure
<SFCD>
Exception
None
SEMI E5-1104 © SEMI 1982, 2004 61
Stream,Function Name (Mnemonic) Direction
S1,F6 Formatted Status Data (FSD) M,H<-E
Description
The equipment reports the value of status variables according to the SFCD.
Structure
Depends upon the structure specified by the status form.
Exception
A zero-length item means that no report can be made.
Stream,Function Name (Mnemonic) Direction
S1,F7 Fixed Form Request (FFR) S,H->E,reply
Description
A request for the form used in S1,F6.
Structure
<SFCD>
Exception
None
Stream,Function Name (Mnemonic) Direction
S1,F8 Fixed Form Data (FFD) M,H<-E
Description
The form is returned with the name of each value and the data format item having a zero length as a two-element list in the place
of each single item to be returned in S1,F6.
Structure
Depends upon the form being specified.
Exception
A zero-length item means the form is unavailable.
Stream,Function Name (Mnemonic) Direction
S1,F9 Material Transfer Status Request (TSR) S,H->E,reply
Description
A request to report the status of all material ports to the host.
Structure
Header only
Exception
None