Jonas: Created page with " == Dualport communication with SFC1012 and SFC1013 == To exchange data with the standard Hilscher driver functions xChannelIORead and xChannelIOWrite, the ''S7-PCI315'' prov..."

2012-08-06T12:42:27Z

Created page with " == Dualport communication with SFC1012 and SFC1013 == To exchange data with the standard Hilscher driver functions xChannelIORead and xChannelIOWrite, the ''S7-PCI315'' prov..."

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== Dualport communication with SFC1012 and SFC1013 ==

To exchange data with the standard Hilscher driver functions xChannelIORead and xChannelIOWrite, the ''S7-PCI315'' provides fake process images for the driver. The driver functions can read/write from/to these images. With the SFCs 1012 and 1013 this data can be fetched/put from this areas and may be copied to any location within the PLC program.

== SFC 1012 CIFXIN (Write data for xChannelIORead) ==

CALL SFC/FC 1012
{|
|style="width: 6em"|RD_WR ||style="width: 10em"| := TRUE ||style="width: 14em"| //INPUT BOOL
|-
|OFFSET|| := MW 0 || //INPUT INT
|-
|LENGTH || := MW 0 || //INPUT INT
|-
|DATA || := P#M0.0 BYTE 1 || //INPUT ANY
|-
|RET_VAL || := MW 0 || //RESULT INT
|-
|}

{| class="wikitable"
!Parameter !! Type of data !! Description
|-
|style="width: 9em"|RD_WR ||style="width: 7em"| BOOL ||style="width: 40em"| FALSE to read data from the input area of the Dualport, TRUE to write. Normally TRUE.
|-
|OFFSET || INT || Offset in dualport input area.
|-
|LENGTH || INT || Length of array to read/write in the dualport.
|-
|DATA || ANY || Pointer to the data within the PLC.
|-
|RET_VAL || INT || 0 on success, else a Siemens-typical error code.
|-
|}

== SFC 1013 CIFXOUT (Read data from xChannelIOWrite) ==

CALL SFC/FC 1013
{|
|style="width: 6em"|RD_WR ||style="width: 10em"| := TRUE ||style="width: 14em"| //INPUT BOOL
|-
|OFFSET|| := MW 0 || //INPUT INT
|-
|LENGTH || := MW 0 || //INPUT INT
|-
|DATA || := P#M0.0 BYTE 1 || //INPUT ANY
|-
|RET_VAL || := MW 0 || //RESULT INT
|-
|}

{| class="wikitable"
!Parameter !! Type of data !! Description
|-
|style="width: 9em"|RD_WR ||style="width: 7em"| BOOL ||style="width: 40em"| FALSE to read data from the output area of the dualport, TRUE to write. Normally FALSE.
|-
|OFFSET || INT || Offset in dualport output area.
|-
|LENGTH || INT || Length of array to read/write in the dualport.
|-
|DATA || ANY || Pointer to the data within the PLC.
|-
|RET_VAL || INT || 0 on success, else a Siemens-typical error code.
|-
|}

== Status word ==

If successful the BR of the status word is set, OR, STA and /FC are zero.

If failed the BR, OR, STA and /FC of the status word are zero.

S7-PCI315:Dualport communication - Revision history

Jonas: Created page with " == Dualport communication with SFC1012 and SFC1013 == To exchange data with the standard Hilscher driver functions xChannelIORead and xChannelIOWrite, the ''S7-PCI315'' prov..."