Jonas: Created page with " == Read current state with SFC1011 == The state of the internal battery of ''S7-PCI315'', the existence of a SD card and the current power source can be read with a special ..."

2012-08-06T12:33:23Z

Created page with " == Read current state with SFC1011 == The state of the internal battery of ''S7-PCI315'', the existence of a SD card and the current power source can be read with a special ..."

New page

== Read current state with SFC1011 ==

The state of the internal battery of ''S7-PCI315'', the existence of a SD card and the current power source can be read with a special SFC. A Library for STEP®7 can be found in the installation folder.

== Read State SFC ==

CALL SFC 1011
{|
|style="width: 9em"|ENABLE_ADC ||style="width: 7em"| := TRUE ||style="width: 14em"| //INPUT BOOL
|-
|RET_VAL || := MW 0 || //RESULT INT
|-
|STATUS || := MW 2 || //OUTPUT WORD
|-
|VOLTAGE || := MW 4 || //OUTPUT WORD
|-
|SERIAL_NUMBER || := MD 6 || //OUTPUT DWORD
|-
|DEVICE_NUMBER || := MD 10 || //OUTPUT DWORD
|-
|}

{| class="wikitable"
!Parameter !! Type of data !! Description
|-
|style="width: 9em"|ENABLE_ADC ||style="width: 7em"| BOOL ||style="width: 45em"| Start of battery voltage measurement with a positive edge. The measurement should not be done too frequently, because every measurement requires a litte amount of energy from the battery.
|-
|RET_VAL || INT || Always 0
|-
|STATUS || WORD || Bit 0 = 1 if Micro-SD card is inserted Bit 1 = 1 if the PLC has been started without program Bit 2 = 1 if the PLC program has been loaded from the battery buffered SRAM Bit 3 = 1 if the PLC programm has been loaded from internal flash Bit 4 = 1 if the PLC programm has been loaded from the Micro-SD card Bit 5 = 1 if power supply from the PC is detected Bit 6 = 1 if an external 24V power supply is detected Bit 7 = 1 if the PCI bus is active Bit 8 = 1 if battery voltage measurement is completed
|-
|VOLTAGE || WORD || Analog value of battery voltage, valid for one cycle when the measurement has been completed
|-
|SERIAL_NUMBER || DWORD || Serial number of the card
|-
|DEVICE_NUMBER || DWORD || Order number of the card
|-
|}

==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:Read State - Revision history

Jonas: Created page with " == Read current state with SFC1011 == The state of the internal battery of ''S7-PCI315'', the existence of a SD card and the current power source can be read with a special ..."