IB IL SGI 2/F ...
7210_en_02 22
PHOENIX CONTACT GmbH & Co. KG • 32823 Blomberg • Germany
Phone: +49-(0) 5235-3-00 • Fax: +49-(0) 5235-3-4 12 00
www.phoenixcontact.com
Channel 1
Channel 2
Example 2: Minimum/maximum evaluation
The channel 1 and channel 2 pressure transducers are loaded and unloaded several times. Only the maximum load is of
interest during the entire process.
PHOENIX CONTACT 11/2008
Step Process data Meaning
1 OUT3 = 8107
hex
OUT2 = 8003
hex
OUT1 = 4000
hex
Specify configuration
2 Wait until IN1 = 4000
hex
Wait for confirmation
3 OUT1 = 0000
hex
Requesting measured values
4 Wait until IN1 = 0000
hex
Wait for confirmation
5 Measured value channel 1 = IN2
Measured value channel 2 = IN3
If the measured value = 80xx
hex
, this corresponds to an
error message
Read measured values
Read measured value IN2: 5A78
hex
(= 23160
dec
)
Current jumper detuning: = IN2 * 0.004% * characteristic
= 23160 * 0.004% * 2 mV/V
= 1.853 mV/V
Current load: = IN2 * 0.004% * nominal load
= 23160 * 0.004% * 500 N
= 463.2 N
Read measured value IN3: CBDE
hex
(= 52190
dec
); following evaluation of the MSB: -19422
dec
Current jumper detuning: = IN3 * 0.004% * characteristic
= -19422 * 0.004% * 4 mV/V
= -3.11 mV/V
Current load: = IN3 * 0.004% * nominal load
= -19422 * 0.004% * 1 kN
= -776.9 N
Step Process data Meaning
1 OUT1 = 3200
hex
Delete minimum and maximum values of channel 1
2 Wait until IN1 = 3200
hex
Wait for confirmation
3 OUT1 = 3300
hex
Delete minimum and maximum values of channel 2
4 Wait until IN1 = 3300
hex
Wait for confirmation
5 Load and unload channel 1 and 2 pressure transducers
6 OUT1 = 3100
hex
Read maximum values
7 Wait until IN1 = 3100
hex
Wait for confirmation
8 Maximum value of channel 1 = IN2
Maximum value of channel 2 = IN3
If measured value = 80xx
hex
, then error message
Read maximum value; to calculate the current jumper
detuning and the current load, see above.
