Profile selection via digital inputs – West Control Solutions Pro-EC44 User Manual

Page 84

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Pro-EC44 2-Loop Graphical Profile Controller & Recorder

Pro-EC44 Product Manual - 59540-1 October 2013

Page 77

Loop 2 Self-Tune Select

Stop

Run

┌ ┐

/

Retained

Profile Run/Hold

Hold

Run

┌ ┐

/

As configured

Profile Hold Segment Release

No Action

Release

┌ ┐

/

Retained

Profile Abort

No Action

Abort

/

As Digital Input

Data Recorder Trigger

Not Active

Active

/

As Digital Input

Output n Forcing

Off/Open

On/Closed

/

As Digital Input

Clear All Latched Outputs

No Action

Reset

/

As Digital Input

Output n Clear Latch

No Action

Reset

/

As Digital Input

Key n Mimic (for L D U R)

No Action

Key Pressed

/

As Digital Input

Profile Selection via digital inputs

For instruments with the profiler option, the multi-digital input option can be used to select the
profile to run using either a standard binary bit pattern, or binary coded decimal from BCD
switches. Profile selection inputs are all level sensitive (

█ ), with a high/open signal equating

to a binary 1 (assuming non-inverted), and a low/closed signal equating to a binary 0
(assuming non-inverted).
Profiles are numbered 0 to 63. Select inputs C1 to Cn for the required number of profiles,
from the table:

C1

C1 to C2

C1 to C3

C1 to C4

C1 to C5

C1 to C6

C1 to C7

Binary

0 to 1

0 to 3

0 to 7

0 to 15

0 to 31

0 to 63

BCD

0 to 1

0 to 3

0 to 7

0 to 9

0 to 19

0 to 39

0 to 63

Using Binary To Select Profile Numbers

Selection of profiles is via a simple binary bit pattern. C1 is the least significant bit (LSB).

C6 to C1

C5 to C1

C4 to C1

C3 to C1

C2 to C1

C1

000000 to 111111

00000 to 11111

0000 to 1111

000 to 111

00 to 11

0 to 1

(0 to 63)

(0 to 31)

(0 to 15)

(0 to 7)

(0 to 3)

(0 to 1)

Using BCD To Select Profile Numbers

A single BCD switch can be used to select profiles 0 to 9 using C1 to C4, with a bit pattern identical to
standard binary. For larger numbers, a double BCD switch arrangement is needed. A separate binary
pattern is applied to C5 to C7 for the “tens” digit (10 = 001, 20 = 010, 30 = 011 etc).
Any number combination higher than 63 is invalid.

Multiples of ten (0

x

to 6

x

)

Multiples of one (

x

0 to

x

9)

C7 to C1

C6 to C1

C5 to C1

C4 to C1

C3 to C1

C2 to C1

C1

000 to 110

00 to 11

0 to 1

0000 to 1001 000 to 111

00 to 11

0 to 1

(0

x

to 6

x

)

(0

x

to 3

x

)

(0

x

to 1

x

)

(

x

0 to

x

9)

(

x

0 to

x

7)

(

x

0 to

x

3)

(

x

0 to

x

1)

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