Unit_AnalogOutput_FP0_A04V

Function to write to an FP0-A04V unit.

This function writes digital data to the analog output channels of the analog unit. The digital values to be converted and output as analog values are specified at iOutChannel0 to iOutChannel3.

Parameters

Input

iIOWordOffset (INT)

Set the offset of the first WX/WY address of the analog unit according to its installation position.

For analog expansion units connected directly to the CPU (without adapter): Use ExpansionUnitToIOWordOffset_FP0 or make the following settings: 2 (WX2/WY2) for unit number 1, 4 (WX4/WY4) for unit number 2, 6 (WX6/WY6) for unit number 3

For analog expansion units connected to the CPU via an adapter: Use ExpansionUnitToIOWordOffset_FPX_FP0 or select the offset from the table.

Unit position relative to the adapter	Adapter position relative to the CPU
Unit position relative to the adapter	1st unit	2nd unit	3rd unit	4th unit	5th unit	6th unit	7th unit	8th unit
1st unit	30	40	50	60	70	80	90	100
2nd unit	32	42	52	62	72	82	92	102
3rd unit	34	44	54	64	74	84	94	104

iOutChannel0 to iOutChannel3 (INT)

Set the digital value to be converted and output by the analog unit.

Values: -2000 to +2000

Output

bPowerIsOn (BOOL): Unit status: TRUE when the power is on.
bErrorChannel0 to bErrorChannel3 (BOOL): Channel status: TRUE if there is an error.

Output wiring

Conversion characteristics

Digital value (INT)	Analog value
-2000	-10.0V
-1500	-7.5V
-1000	-5.0V
-500	-2.5V
0	0.0V
+500	+2.5V
+1000	+5.0V
+1500	+7.5V
+2000	+10.0V

Tip

This command description provides basic hardware documentation only. For detailed technical information, consult the manual:

FP0 D/A Converter Unit Technical Manual

Example

POU header

All input and output variables used for programming this function have been declared in the POU header. The same POU header is used for all programming languages.

VAR
	iAnalog_Out_Ch0: INT:=0;
	iAnalog_Out_Ch1: INT:=0;
	iAnalog_Out_Ch2: INT:=0;
	iAnalog_Out_Ch3: INT:=0;
	bPowerIsOn: BOOL:=FALSE;
	bErrorChannel0: BOOL:=FALSE;
	bErrorChannel1: BOOL:=FALSE;
	bErrorChannel2: BOOL:=FALSE;
	bErrorChannel3: BOOL:=FALSE;
END_VAR

POU body

The digital values entered at iOutChannel0–iOutChannel3 are written to the analog unit and converted into analog values. The analog data is output at the corresponding output channels.

LD body

Use ExpansionUnitNumberToIOWordOffset_FP0 or ExpansionUnitNumberToIOWordOffset_FPX_FP0 to calculate the word offset of the analog unit connected to the CPU.

BODY
    WORKSPACE
        NETWORK_LIST_TYPE := NWTYPELD ;
    END_WORKSPACE
    NET_WORK
        NETWORK_TYPE := NWTYPELD ;
        NETWORK_LABEL :=  ;
        NETWORK_TITLE :=  ;
        NETWORK_HEIGHT := 7 ;
        NETWORK_BODY
B(B_F,Unit_AnalogOutput_FP0_A04V!,,18,0,32,7,,?DiIOWordOffset?DiOutChannel0?DiOutChannel1?DiOutChannel2?DiOutChannel3?CbPowerIsOn?CbErrorChannel0?CbErrorChannel1?CbErrorChannel2?CbErrorChannel3);
B(B_VARIN,,2,16,1,18,3,);
B(B_VAROUT,,bPowerIsOn,32,1,34,3,);
B(B_VARIN,,iAnalog_Out_Ch0,16,2,18,4,);
B(B_VAROUT,,bErrorChannel0,32,2,34,4,);
B(B_VARIN,,iAnalog_Out_Ch1,16,3,18,5,);
B(B_VAROUT,,bErrorChannel1,32,3,34,5,);
B(B_VARIN,,iAnalog_Out_Ch2,16,4,18,6,);
B(B_VAROUT,,bErrorChannel2,32,4,34,6,);
B(B_VARIN,,iAnalog_Out_Ch3,16,5,18,7,);
B(B_VAROUT,,bErrorChannel3,32,5,34,7,);
L(1,0,1,7);
        END_NETWORK_BODY
    END_NET_WORK
END_BODY

ST body

Unit_AnalogOutput_FP0_A04V(iIOWordOffset := 2,
	iOutChannel0 := iAnalog_Out_Ch0,
	iOutChannel1 := iAnalog_Out_Ch1,
	iOutChannel2 := iAnalog_Out_Ch2,
	iOutChannel3 := iAnalog_Out_Ch3,
	bPowerIsOn => bPowerIsOn,
	bErrorChannel0 => bErrorChannel0,
	bErrorChannel1 => bErrorChannel1,
	bErrorChannel2 => bErrorChannel2,
	bErrorChannel3 => bErrorChannel3);