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7079 Datasheet(PDF) 21 Page - PHOENIX CONTACT

Part # 7079
Description  Inline analog input terminal, 8 channels, RTDs, 2 and 3-wire connection method
PDF  26 Pages
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Manufacturer  PHOENIX [PHOENIX CONTACT]
Direct Link  http://www.phoenixcontact.com
Logo PHOENIX - PHOENIX CONTACT

7079 Datasheet(HTML) 21 Page - PHOENIX CONTACT

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PHOENIX CONTACT
21
17
Configuration and analog values
The terminal only needs to be configured if the channels are
not to be operated with the default values (see "Parameters
for configuration" on page 12).
You can either configure the terminal via process data or
via PCP and transmit analog values accordingly.
If you have configured the terminal via PCP, the configura-
tion can no longer be modified via the process data.
Examples for terminal configuration via process data
Example 1
All channels are to be configured as Ni1000 in 3-wire tech-
nology with 16-sample mean value generation. IBIL is used
as format with a resolution of 0.1°C. The configuration value
is therefore 0002
hex.
Example 2
Each channel is configured differently.
For easy terminal configuration a function block
can be downloaded at
www.phoenixcontact.net/catalog
Step
Process data
Meaning
1
OUT2 = 0C02
hex
OUT1 = 6000
hex
Specify configuration
2Wait until
IN1 = 6000
hex
Wait for confirmation
3
OUT1 = 0800
hex
Request the measured
values of channels 1 to
4
4Wait until
IN1 = 0800
hex
Wait for confirmation
5
Measured value channel
1 = IN2, ...,
Measured value channel
4 = IN5
if
measured value =
80xx
hex , an error mes-
sage is sent, otherwise
temperature in °C =
measured value x 10
Read measured values
6
OUT1 = 0900
hex
Request the measured
values
of channels 5 to 8
7Wait until
IN1 = 0900
hex
Wait for confirmation
8
Measured value channel
5 = IN2, ...,
Measured value channel
8 = IN5
Read measured values
Step
Process data
Meaning
1
OUT2 = configuration for
channel 1
OUT1= 4000
hex
Specify configuration
K1
2
Wait until
IN1 = 4000
hex
Wait for confirmation
3
OUT2 = configuration for
channel 2 OUT1 =
4100
hex
Specify configuration
C2
4
Wait until
IN1 = 4100
hex
Wait for confirmation
5
OUT2 = configuration for
channel 3
OUT1 = 4200
hex
Specify configuration
K3
6
Wait until
IN1 = 4200
hex
Wait for confirmation
...
...
...
15
OUT2 = configuration for
channel 8
OUT1= 4700
hex
Specify configuration
K8
16
Wait until
IN1 = 4700
hex
Wait for confirmation



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