Meter setup and configuration worksheet

Reference, Installation, and Operations Manual

June 2013

3-9000-743 Rev S

Table E-2 Meter to Flow Computer Communication Worksheet (Sheet 4 of 9)

Description

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Freq 1 Direction

Forward:

Reverse:

Absolute:

Bidirectional:

 

 

FO1A and FO1B output pulses

 

FO1A and FO1B output

 

FO1A and FO1B

FO1A pulses only

Group 1

 

only when flow is in the forward

 

pulses only when flow is in

 

output pulses

when flow is in the

FO1A, FO1B

 

direction.

 

the reverse direction.

 

regardless of flow

forward direction.

 

 

 

 

 

 

direction. Note:

FO1B pulses only

 

 

 

 

 

 

Both outputs

when flow is in the

 

 

 

 

 

 

report flow

reverse direction.

 

 

 

 

 

 

regardless of the

The phase rela-

 

 

 

 

 

 

flow direction.

tionship setting is

 

 

 

 

 

 

Suggest config-

ignored.

 

 

 

 

 

 

uring one of the

 

 

 

 

 

 

 

 

associated digital

 

 

 

 

 

 

 

 

outputs to

 

 

 

 

 

 

 

 

indicatedirection

 

 

 

 

 

 

 

 

or use phase rela-

 

 

 

 

 

 

 

 

tionship.

 

 

 

 

 

 

 

 

 

 

 

Freq B (FO1B

FO1B lags FO1A by 90O if

FO1B leads FO1A by 90O if

 

 

 

 

Phase Relationship

 

forward flow, or leads if reverse

 

forward flow, or lags if

 

 

 

 

 

 

flow.

 

reverse flow.

 

 

 

 

 

 

 

 

 

 

 

Max Freq

1000 Hz (overrange to 1500Hz

5000 Hz (overrange to

 

 

 

 

 

 

max).

 

7500Hz max).

 

 

 

 

 

 

 

 

 

 

 

Full Scale Flow Rate

Refer to note in Modbus volume and flow rate units section of this table

 

 

 

 

 

 

 

 

 

 

 

 

Digital Output Group 1 DO1A

User Selection (Circle one)

 

 

 

 

 

Results (Enter here)

 

 

 

 

 

 

 

 

 

Electrical Configuration

TTL

OC

 

 

 

 

 

 

“Internally Powered”

 

“Open Collector”

 

 

 

 

Content

Flow Direction

Flow Validity

 

 

 

 

 

 

 

 

 

 

 

 

 

Polarity

Normal

Inverted*

 

 

 

 

 

 

 

 

 

 

 

 

 

*Note: Inverted operation - use if the output of the meter is reversed from what a flow computer is expecting. Selecting the check box inverts the digital output. This means that if the output normally outputs a HIGH for a TRUE condition, selecting this check box changes the output to output a LOW for a TRUE condition.

325

Meter to Flow Computer Communication Worksheet