Rockwell-automation 1769-IF4XOF2 Compact Combination Analog Module Instrukcja Użytkownika Pobierz pdf (Strona 16)

16 Compact™ Combination Analog I/O Module

Publication 1769-IN057A-EN-P - July 2001

Output Data File

The output data file applies only to output data from the module as shown in the

table below.

Word

Bit Position

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

0 SGN Analog Output Data Channel 0 0 0 0 0 0 0 0

1 SGN Analog Output Data Channel 1 0 0 0 0 0 0 0

IMPORTANT

Bits 0 through 6 and Bit 15 of output data words 0 and 1 should

always be set to zero in your control program. If they are not set

to 0, the invalid data flag (Ex) will be set for that channel.

However the channel will continue to operate with the

previously converted value. If a MVM (Move with Mask)

instruction is used with a mask of 7F80 (hexidecimal) to move

data to the output words, writing to bits 0 through 6 and bit 15

can be avoided.

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 22 23 24

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Rockwell-automation 1769-IF4XOF2 Compact Combination Analog Module Instrukcja Użytkownika Strona 16