Rockwell Automation 1747-DTAM-E,D17476.1 Data Table Access Module (DTAM) User Manual

Page 45

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Monitoring and Modifying Data

5-11

Publication 1747-6.1

How to Display Different Control Bits Within Elements

With a data file address displayed, you may use the [

,1&

] and [

'(&

]

keys to display different bits within a Timer, Counter, or Control
word, or change bit addresses within a Bit element.

When a Timer, Counter, and Control address is displayed, the [

,1&

]

and [

'(&

] keys work as follows:

1. To view the Control bits in T4:3, display the address as

previously described. The display shows the highest numbered
Control bit, with the address on the top left and the bit function
and on/off state in the lower right-hand corner:

Press

>'(&@

2. The LCD displays the original bit and the next lower numbered

bit. The bit address in the upper left-hand corner corresponds to
the function and state in the lower right-hand corner:

Press [

'(&

].

3. The display shows the next lowest bit in the Control word:

The [

'(&

] key works in the same fashion.

A maximum of three Control bits may be displayed at one time. Only
the Control bit displayed in the lower right-hand corner can be
manipulated. Use the [

,1&

] and [

'(&

] keys to access any other bits.

Another function of the [

,1&

] and [

'(&

] keys is to change the Bit

address displayed on the LCD.

When a Bit file address is displayed at the bit level, the [

,1&

] and

[

'(&

] keys work as follows:

T4:3.0/15

EN =0

T4:3.0/14

EN =0

TT = 0

T4:3.0/13

EN =0 TT = 0 DN = 1

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