Rockwell-automation 1760-DNET Pico DeviceNet Communications Module Use Manual de usuario descargar pdf (Pagina 114)

Publication 1760-UM003A-EN-P - September 2005

7-34 Pico GFX Control Commands

Table 6.126 Operand overview

Inde

(hex)

Operand Value read write

00 Bit IO Table 6.127 x

01 Mode/Parameter – – –

02 Upper setpoint SH In integer range from

–2147483648 to

+2147483647

(1)

(1) The value can only be written if it is assigned to a constant in the program.

03 Lower setpoint SL x

04 Preset actual value SV x

05 Actual value in Run

mode

QV x

TIP

The data for index 2 to 5 is transferred as a 32-bit

value in Intel format (Data 1 – Low Byte to Data 4 –

High Byte).

Table 6.127 Index 0 – Bit IO

Bit76543 2 1 0

FB input Data 1 ––––

(1)

(1) Counter enable

(3)

(3) Transfer preset actual value on rising edge

(5)

(5) Count direction: 0 = up counting, 1 = down counting

(7)

(7) Reset actual value to zero

FB output Data 3 ––––

(2)

(2) Zero: Status 1 if the value of the function block output QV (the counter status) equals zero

(4)

(4) Carry: Status 1 if the value range is exceeded

(6)

(6) Fall below: Status 1 if the actual value F lower setpoint

(8)

(8) Overflow: Status 1 if the actual value f lower setpoint

1 2 ... 109 110 111 112 113 114 115 116 117 118 119 ... 167 168

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Rockwell-automation 1760-DNET Pico DeviceNet Communications Module Use Manual de usuario Pagina 114