Siemens 6ED1050-1AA00-0BE8 Analog outputs, Flag blocks, Startup flag, Backlight flags M25 and M26

LOGO! functions

4.1 Constants and connectors - Co

2) Analog outputs

Analog outputs are identified by the letters AQ. Two analog outputs are available, namely AQ1 and AQ2. An analog output can only be connected with the analog input of a function, an analog flag AM or an analog output connector.

The following figure shows an example LOGO! configuration and the numbering of the inputs and outputs for the circuit program.

										Inputs
sR t hpZ hp[ pZ p[ p\ p] hpX hpY								sR t p` pXW pXX pXY sR t						sR t	sR t pXZ pX[ pX\ pX] sR t					sR t
									yuVz{vw				yuVz{vw			yuVz{vw			yuVz{vw
													wl						wl
									1	2	1	2			1	2	1	2
									x\		x]		puw{GYŸGOUUXW}VUUYW”hP			x`	xXW		v{w{GYŸOWUUXW}G–™GWV[UUYW”hP
1	2	1	2	1	2	1	2	1	2		1	2	hp\ tZ Z hp] t[ [		1	2	1	2	}XR M1	I1 V2+ tY pY
	xX		xY		xZ	x[			x^		x_				xXX			xXY	AQ1	AQ2
						Outputs							Analog inputs					Analog outputs

Flag blocks

Flag blocks are identified by the letters M or AM . These are virtual outputs, which output the value of their inputs. LOGO! 0BA6 provides 27 digital flags M1 to M27 and 6 analog flags AM1 to AM6. LOGO! 0BA7 provides 27 digital flags M1 to M27 and 16 analog flags AM1 to AM16.

Startup flag

Flag M8 is set in the first cycle of the circuit program and can thus be used in your circuit program as a startup flag. This signal is automatically reset after the circuit program has completed its first cycle.

The M8 flag can be used in all further cycles for setting, deletion and evaluation procedures in the same way as other flags.

Backlight flags M25 and M26

The M25 flag controls the backlight of the LOGO! onboard display. The M26 flag controls the backlight of the LOGO! TD.

Note: The backlight lifetime of the LOGO! TD is 20,000 hours.

LOGO!

Manual, 04/2011, A5E03556174-01 139