Page 1
IB IL 24 AI 2/SF-230
INTERBUS Inline Terminal
With Two Analog Input Channels
Data Sheet 6232A
This data sheet is only valid in
association with the
IB IL SYS PRO UM E "Configuring
and Installing the INTERBUS Inline
Product Range" User Manual.
01/2001
Function
The terminal is designed for use within an
INTERBUS Inline station. It is used to measure
analog voltage or current signals.
Features
– Two analog single-ended signal inputs for
the connection of either voltage or current
signals
– Connection of sensors in 2- and 3-wire
technology
– Three current measuring ranges:
0 mA through 20 mA, ±20 mA, 4 mA through
20 mA
– Two voltage measuring ranges:
0 V through 10 V, ±10 V
– Configuration of the independent channels
through INTERBUS
– Measured values can be represented in four
different formats
– Resolution independent of the
representation format and the measuring
range
6 2 3 2 A 0 0 1
– Process data update of both channels in
1.5 ms, maximum
– Diagnostic indicator
– 230 Hz input filter
6 2 3 2 A 0 0 2
Figure 1 IB IL 24 AI 2/SF-230 terminal
with connector
Please note that the connector is not
supplied as standard with the
terminal. Please refer to the ordering
data on page 31 to order the
appropriate connectors for your
application.
6232A 1
Page 2
IB IL 24 AI 2/SF-230
Table of Contents
Function ........................................................................................................................................... 1
Installation Instructions .....................................................................................................................3
Internal Circuit Diagram ................................................................................................................... 4
Electrical Isolation ............................................................................................................................5
Connection Notes .............................................................................................................................6
Connection Examples ......................................................................................................................8
Programming Data .........................................................................................................................10
INTERBUS Process Data Words ...................................................................................................11
Formats for Representing the Measured Values ........................................................................... 16
Technical Data ............................................................................................................................... 25
Ordering Data ................................................................................................................................. 31
2 6232A
Page 3
IB IL 24 AI 2/SF-230
Local Diagnostic and Status Indicators
D
A I2 - 2 3 0
1 2
1 . 1
1 . 2
1 . 3
1 . 4
2 . 1
1
1
2 . 2
2
2
2 . 3
3
3
2 . 4
4
4
6 2 3 2 A 0 0 3
Figure 2 IB IL 24 AI 2/SF-230 terminal
with the appropriate connector
Des. Color Meaning
D Green Bus diagnostics
Terminal Assignment
Terminal
Signal Assignment
Points
1.1 +U1 Voltage input channel 1
2.1 +U2 Voltage input channel 2
1.2 +I1 Current input channel 1
2.2 +I2 Current input channel 2
1.3 -1 Return for channel 1
(common for current and
voltage)
2.3 -2 Return for channel 2
(common for current and
voltage)
1.4, 2.4 Shield Shield connection
Installation Instructions
High current flowing through the voltage jumpers UM and US leads to a temperature rise of the voltage
jumpers and the inside of the terminal. Note the following instructions to keep the current flowing
through the voltage jumpers of the analog terminals as low as possible:
All of the analog terminals need a separate main circuit.
If this is not possible in your application and if you are using analog terminals in a main
circuit together with other terminals, place the analog terminals behind all the other
terminals at the end of the main circuit.
6232A 3
Page 4
IB IL 24 AI 2/SF-230
Internal Circuit Diagram
I N T E R B U S
U
U
U
L +
A N A
L -
M U X
O P C
µ P
R E F
E E P R O M
Key:
OPC
Protocol chip
Optocoupler
2 4 V
+ 5 V
/ + 1 0 V
x x x
µ P
M U X
R E F
E E P R O M
Power supply unit with electrical
X X X
isolation
Microprocessor with multiplexer
and analog/digital converter
Reference voltage
Electrically erasable
programmable read-only memory
+ 2 4 V ( U
+ 2 4 V ( UM)
U
)
S
I N
I
I N
1
U
I N
I
I N
5 5 6 4 A 0 0 3
Figure 3 Internal wiring of the terminal
points
Amplifier
Coupling network
Other symbols are explained in the
IB IL SYS PRO UM E User Manual.
4 6232A
Page 5
Electrical Isolation
IB IL 24 AI 2/SF-230
I N T E R B U S
l o c a l b u s ( I N )
U
( 7 . 5 V D C )
L
U
( 2 4 V D C )
A N A
2 4 V
1 0 V
5 V
1 0 V
5 V
B u s i n t e r f a c e
O P C
I / O i n t e r f a c e
m i c r o p r o c e s s o r
A n a l o g i n p u t sF E p o t e n t i a l
a n d
I N T E R B U S
l o c a l b u s ( O U T )
( 7 . 5 V D C )
U
L
U
( 2 4 V D C )
A N A
A
B
E l e c t r i c a l i s o l a t i o n
b e t w e e n a r e a
A a n d B
6 2 3 2 A 0 0 4
Figure 4 Electrical isolation of the single
function areas
6232A 5
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IB IL 24 AI 2/SF-230
Connection Notes
Do not connect voltages above ±5 V to a current input. The electronics module will be
damaged if the maximum permissible current of ±100 mA is exceeded.
Always connect analog sensors using twisted and shielded cables (see Figure 5).
Connect the shielding of the terminal using the shield connector clamp. The clamp
connects the shield with high resistance and capacitance to FE on the module side.
Additional wiring is not necessary.
When connecting the sensor shielding with the PE potential, ensure a large surface
connection.
Within the terminal, ground is connected to FE via an RC element.
A
Figure 5 Connection of analog sensors, signal cables
If you want to use both channels of the IB IL 24 AI 2/SF-230 terminal, you can connect
the shield in various ways depending on the cable feed.
1 If one multi-wire cable is used to connect both sensors, connect the shielding as described above
using the shield connector (see Figure 5).
B
5 5 2 0 0 0 4 3
6 6232A
Page 7
IB IL 24 AI 2/SF-230
2 If two individual cables are used to connect the sensors, proceed as follows to prevent ground
loops (see Figure 6):
• Install a busbar with a connection to the ground potential in front of the Inline terminal (B in
Figure 6). Place the outer sheath of the two cables in the appropriate position and connect
the shields of both cables, e.g., using an SK shield clamp (see "CLIPLINE" Catalog). The
busbar must be the only point at which the shield of every cable is connected with ground
potential.
• Lead the cables to the Inline terminal and connect the shield, as described above, using the
shield connector (A in Figure 6).
• Lead the sensor cable into the sensor making sure to maintain the integrity of the cable
insulation (C in Figure 6).
A
B
C
5 5 2 0 A 1 1 8
Figure 6 Connection of two analog sensors with individual cables
6232A 7
Page 8
IB IL 24 AI 2/SF-230
Connection Examples
Use a connector with shield connection when installing the sensors. Figure 7 and Figure 8
show the connection schematically (without shield connector).
Connection of Active Sensors
D
A I 2 - 2 3 0
1 2
1
1
2
2
3
3
4
4
I N
Connection of Passive Sensors
I B I L A I 2 / S F - 2 3 0I B I L 2 4 S E G / F
U S
U M
S E G / F
1 2
1
2
3
4
I N
I N
2 4 V
D
A I 2 - 2 3 0
1 2
1
1
1
2
2
2
3
3
3
4
4
4
I N
2 4 V
A
Figure 7 Connection of active sensors
in 2-wire technology with shield
connection
A Active sensor with voltage output
(channel 1)
B Active sensor with current output (channel 2)
B
6 2 3 2 A 0 0 5
6 2 3 2 A 0 0 6
Figure 8 Connection of two passive
sensors in 2-wire technology with
shield connection
Figure 8 shows the passive sensor supply. The
sensors are supplied through a pre-connected
segment terminal with a fuse. The sensors can
also be supplied from an external power supply.
8 6232A
Page 9
Connection for Battery Monitoring
Both reference inputs (minus inputs) of each
IB IL 24 AI 2/SF-230 terminal are connected with each other. If signal sources are
connected in series, wrong connections can lead to a short circuit of individual signal
sources.
IB IL 24 AI 2/SF-230
Because of the single-ended inputs, the
following connections are necessary:
D
D
D
A I 2 - 2 3 0
A I 2 - 2 3 0
A I 2 - 2 3 0
1 2
1 2
1 2
1
1
1
1
1
1
2
2
2
2
3
3
3
4
4
4
2
2
3
3
3
4
4
4
2 V 2 V 2 V 2 V 2 V 2 V
1 2 V
6 2 3 2 A 0 0 7
Figure 9 Connection for battery monitoring
Connect the reference input of a terminal
between two voltage sources.
Channel 1 measures the first voltage source
with opposite polarity. The measured value must
be adapted in the control system to the polarity.
Channel 2 measures the second voltage source
with correct polarity.
Configure the terminal to bipolar (±10 V).
6232A 9
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IB IL 24 AI 2/SF-230
Programming Data
ID code 7F
Length code 02
hex
hex
Process data channel 32 bits
Input address area 4 bytes
Output address area 4 bytes
Parameter channel
0 bytes
(PCP)
Register length (bus) 4 bytes
(127
dec
)
10 6232A
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IB IL 24 AI 2/SF-230
INTERBUS Process Data Words
Process Data Output Words for the Configuration of the Terminal (see page 13)
INTERBUS
reference
(Byte.bit)
view
Channel 1 Assignment
Channel 2 Assignment
Assignment of the Terminal Points to the Process Data Input Words (see page 14)
INTERBUS
reference
(Byte.bit)
view
Channel 1 Signal 1514131211109876543210
Channel 2 Signal 1514131211109876543210
Word
Bit 1514131211109876543210
Byte
Bit 7654321076543210
100000Filter 0 0 Format Measuring
100000Filter 0 0 Format Measuring
Word
Bit 1514131211109876543210
Byte
Bit 7654321076543210
Terminal point 1.1: voltage input
Terminal point 1.2: current input
Signal reference Terminal point 1.3
Shielding (FE) Terminal point 1.4
Terminal point 2.1: voltage input
Terminal point 2.2: current input
Signal reference Terminal point 2.3
Shielding Terminal point 2.4
Byte 0 Byte 1
Byte 0 Byte 1
Word x
range
range
Word x
6232A 11
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IB IL 24 AI 2/SF-230
INTERBUS OUT Process Data Output Words
With the two process data output words you can
configure each channel of the terminal
independently. The following configurations are
possible:
– Selecting a measuring range according to
the input signal
– Switching off mean-value generation
– Changing the formats of the measured value
representation
The configuration setting is not saved. It must be
transmitted in each INTERBUS cycle.
After applying voltage (power up) to the Inline
station, the message "Measured value invalid"
(error code 8004
) appears in the process
hex
data input words. After 1 s (maximum) the
preset configuration is accepted and the first
measured value is available. If you change the
configuration the corresponding channel is reinitialized. The message "Measured value
invalid" (error code 8004
) appears in the
hex
process data output words for 100 ms
(maximum).
Default:
Measuring range: 0 through 10 V
Mean-value generation: Switched on
Output format: IL format
Mean-value generation should be
deactivated for the analysis of
dynamic signals.
You cannot change the signal input
type through the process data output
words. Current or voltage
measurement is selected by applying
the measured signal to the current or
voltage input.
In addition, select the corresponding
measuring range through the process
data output words.
Do not simultaneously apply current
and voltage signals to an input
channel as you will not receive valid
measured values.
12 6232A
Page 13
P r o c e s s d a t a w o r d 1 P r o c e s s d a t a w o r d 2
IB IL 24 AI 2/SF-230
C h a n n e l 1
M S B L S B
1 5
C h a n n e l 2
F i l t e rC o n f i g u r a t i o n
F o r m a t
M e a s u r i n g r a n g e
Figure 10 Process data output words
MSB Most significant bit LSB Least significant bit
One process data output word is available for
the configuration of each channel.
Set bit 15 of the corresponding output word to 1
to configure the terminal. If bit 15 = 0 the preset
configuration is active.
Bit 15:
Code Configuration
0 Default
1 Configuration data
Bit 9 and bit 8: Bit 5 and bit 4:
Code Filter
00 16-sample mean value (default)
01 Mean-value generation Off
10, 11 Reserved
Code Format
00 IB IL (15 bits) (default)
01 IB ST (12 bits)
10 IB RT (15 bits)
11 Standardized display
01 4 1 3 1 2 1 1 1 0 9 8 7 6 5 4 3 2 1
5 5 6 4 0 0 0 6
Bit 3 through bit 0:
Code Measuring Range (Voltage)
0000 0 V through 10 V (default)
0001 ±10 V
0010
Reserved
through
0111
Code Measuring Range (Current)
1000 0 mA through 20 mA
1001 ±20 mA
1010 4 mA through 20 mA
1011 through
Reserved
1111
Set all reserved bits to 0.
6232A 13
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IB IL 24 AI 2/SF-230
INTERBUS IN Process Data Input Words
The measured values are transmitted, per channel, through the INTERBUS IN process data input
words to the controller board or the computer.
P r o c e s s d a t a w o r d 1 P r o c e s s d a t a w o r d 2
C h a n n e l 1
C h a n n e l 2
F o r m a t :
M S B L S B
I L
01 4 1 3 1 2 1 1 1 0 9 8 7 6 5 4 3 2 11 5
R T
S B
A V
S t a n d a r d i z e d
D i s p l a y
01 4 1 3 1 2 1 1 1 0 9 8 7 6 5 4 3 2 11 5
S T
S B
A V
O R0 / 4 O C
5 5 6 4 A 0 0 9
Figure 11 Sequence of the process data input words in the INTERBUS ring and display of the bits
of the first process data word in different formats
SB Sign bit OC Open circuit
AV Analog value OR Overrange
0/4 Measuring range 4 through 20 mA
MSB Most significant bit LSB Least significant bit
14 6232A
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IB IL 24 AI 2/SF-230
The process data formats "IB IL" and "Standardized display" support extended diagnostics. The
following error codes are possible:
Code (hex) Error
8001 Overrange
8002 Open circuit
8004 Measured value invalid/no valid measured value available
8010 Configuration invalid
8040 Module defective
8080 Below range
6232A 15
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IB IL 24 AI 2/SF-230
Formats for Representing the Measured Values
"IB IL" Format
The measured value is represented in bits 14 through 0. An additional bit (bit 15) is available as a
sign bit.
This format supports extended diagnostics. Values > 8000
indicate an error. The error codes are
hex
listed on page 15.
1 5
S B
A V
01 4 1 3 1 2 1 1 1 0 9 8 7 6 5 4 3 2 1
5 5 6 4 1 0 0 8
Figure 12 Measured value representation in "IB IL" format (15 bits)
SB Sign bit AV Analog value
This format is preset (default). To ensure that the terminal can be operated in previously used data
formats, the measured value representation can be switched to different formats.
Significant Measured Values
Some codes are used for diagnostic functions. Therefore, the resolution is not 15 bits but
exactly 14.9886847 bits.
Measuring range 0 mA through 20 mA/0 V through 10 V
Input Data Word
(Two’s Complement)
0 mA Through 20 mA
I
Input
0 V Through 10 V
U
Input
hex dec mA V
8001 Overrange
> +21.6746 > +10.837
7F00 32512 +21.6746 +10.837
7530 30000 +20.0 +10.0
0001 1 +0.66667 µA +333.33 µV
0000 0 0 0
0000 0
< 0 < 0
16 6232A
Page 17
Measuring range -20 mA through +20 mA/-10 V through +10 V
Input Data Word
(Two’s Complement)
-20 mA Through +20 mA
I
Input
-10 V Through +10 V
hex dec mA V
8001 Overrange
> +21.6746 > +10.837
7F00 32512 +21.6746 +10.837
7530 30000 +20.0 +10.0
0001 1 +0.66667 µA +333.33 µV
0000 -1 0 0
FFFF 0 -0.66667 µA -333.33 µV
8AD0 -30000 -20.0 -10.0
8100 -32000 -21.6746 -10.837
8080 Below range
<-21.6746 <-10.837
Measuring range 4 mA through 20 mA
U
IB IL 24 AI 2/SF-230
Input
Input Data Word
(Two’s Complement)
4 mA Through 20 mA
I
Input
hex dec mA
8001 Overrange
> +21.339733
7F00 32512 +21.339733
7530 30000 +20.0
0001 1 +4.00053333
0000 0 +4.0 through 3.2
8002 Open circuit <+3.2
6232A 17
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IB IL 24 AI 2/SF-230
"IB ST" Format
The measured value is represented in bits 14 through 3. The remaining 4 bits are sign bit, measuring
range, and error bits.
This format corresponds to the data format used on INTERBUS ST modules.
1 5
S B
A V
Figure 13 Measured value representation in "IB ST" format (12 bits)
SB Sign bit OC Open circuit
AV Analog value OR Overrange
0/4 Measuring range 4 through 20 mA
Significant Measured Values
Measuring range 0 mA through 20 mA/0 V through 10 V
Input Data Word
(Two’s Complement)
0 mA Through 20 mA
I
Input
0 V Through 10 V
U
Input
hex mA V
7FF9 >21.5 >10.75
7FF8 20.0 through 21.5 10.00 through 10.75
7FF8 19.9951 9.9975
4000 10.0 5.0
0008 0.0048828 0.002441
0000 0 0
01 4 1 3 1 2 1 1 1 0 9 8 7 6 5 4 3 2 1
O R0 / 4 O C
5 5 6 4 0 0 0 7
18 6232A
Page 19
Measuring range -20 mA through +20 mA/-10 V through +10 V
Input Data Word
(Two’s Complement)
-20 mA Through +20 mA
I
Input
-10 V Through +10 V
hex mA V
7FF9 >21.5 >10.75
7FF8 20.0 through 21.5 10.00 through 10.75
7FF8 19.9951 9.9975
0008 0.0048828 0.002441
0000 0 0
FFF8 -0.0048828 -0.002441
8000 -20.0 through -21.5 -10.00 through -10.75
8001 <-21.5 <-10.75
Measuring range 4 mA through 20 mA
U
IB IL 24 AI 2/SF-230
Input
Input Data Word
(Two’s Complement)
hex mA
7FFD >21.5
7FFC 20.0 through 21.5
7FFC 19.9961
000C 4.003906
0004 3.2 through 4.0
0006 < 3.2
4 mA Through 20 mA
I
Input
6232A 19
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IB IL 24 AI 2/SF-230
"IB RT" Format
The measured value is represented in bits 14 through 0. An additional bit (bit 15) is available as a
sign bit.
This format corresponds to the data format used on INTERBUS RT modules.
In this data format error codes or error bits are not defined. Open circuit is indicated through the
positive final value 7FFF
hex
.
1 5
S B
A V
Figure 14 Measured value representation in "IB RT" format (15 bits)
SB Sign bit AV Analog value
Significant Measured Values
Measuring range 0 mA through 20 mA/0 V through 10 V
Input Data Word
(Two’s Complement)
0 mA Through 20 mA
I
Input
0 V Through 10 V
U
Input
hex mA V
7FFF ≥ 19.999385 ≥ 9.999695
7FFE 19.9987745 9.999939
4000 10.0 5.0
0001 0.6105 µA 305.0 µV
0000
≤ 0 ≤ 0
01 4 1 3 1 2 1 1 1 0 9 8 7 6 5 4 3 2 1
5 5 6 4 1 0 0 8
20 6232A
Page 21
Measuring range -20 mA through +20 mA/-10 V through +10 V
Input Data Word
(Two’s Complement)
-20 mA Through +20 mA
I
Input
hex mA V
7FFF
≥ +19.999389 ≥ +9.999939
7FF7 +19.998779 +9.99939
4000 +10.0 +5.0
0001 +0.61035 µA +305.0 µV
0000 0 0
FFFF -0.61035 µA -305.0 µV
8001 -19.999389 -9.99939
8000
≤-20.0 ≤-10.0
Measuring range 4 mA through 20 mA
IB IL 24 AI 2/SF-230
-10 V Through +10 V
U
Input
Input Data Word
(Two’s Complement)
hex mA
7FFF
7FFE 19.9990232
4000 12.0
0001 0.4884 µA
0000 4.0
0000 3.2 through 4.0
7FFF < 3.2
4 mA Through 20 mA
I
Input
≥ 19.9995116
6232A 21
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IB IL 24 AI 2/SF-230
"Standardized Display" Format
The data is represented in bits 14 through 0. An additional bit (bit 15) is available as a sign bit.
In this format, data on the measuring range is standardized and represented in such a way that it
indicates the corresponding value without conversion. In this format one bit has the value of 1 mV or
1µA.
This format supports extended diagnostics. Values > 8000
indicate an error. The error codes are
hex
listed on page 15.
1 5
S B
A V
01 4 1 3 1 2 1 1 1 0 9 8 7 6 5 4 3 2 1
5 5 6 4 1 0 0 8
Figure 15 Measured value representation in "Standardized display" format (15 bits)
SB Sign bit AV Analog value
Significant Measured Values
Because of the display standardization not all of the possible codes are used. In addition,
some codes are used for diagnostic functions. Therefore, the resolution is not 15 bits but
exactly 13.287713 bits.
22 6232A
Page 23
IB IL 24 AI 2/SF-230
Measuring range 0 V through 10 V Measuring range 0 mA through 20 mA
Input Data Word
(Two’s Complement)
hex dec V
8001 Overrange
2A55 10837 +10.837
2710 10000 +10.0
0001 1 +0.001
0000 0
0 V Through 10 V
U
Input
> +10.837
≤ 0
Input Data Word
(Two’s
0 mA Through 20 mA
I
Input
Complement)
hex dec mA
8001 Overrange
> +21.674
54AA 21674 +21.674
4E20 20000 +20.0
0001 1 +0.001
0000 0
≤ 0
Measuring range -10 V through +10 V Measuring range -20 mA through +20 mA
Input Data Word
(Two’s Complement)
-10 V Through
+10 V
U
hex dec V
8001 Overrange
> +10.837
2A55 10837 +10.837
2710 10000 +10.0
0001 1 +0.001
0000 0 0
FFFF -1 -0.001
D8F0 -10000 -10.0
D5A6 -10837 -10.837
8080 Below range <-10.837
Input
Input Data Word
(Two’s Complement)
-20 mA Through
+20 mA
I
Input
hex dec mA
8001 Overrange
> +21.674
54AA 21674 +21.674
4E20 20000 +20.0
0001 1 +0.001
0000 0 0
FFFF -1 -0.001
B1E0 -20000 -20.0
A656 -21674 -21.674
8080 Below range <-21.674
6232A 23
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IB IL 24 AI 2/SF-230
Measuring range 4 mA through 20 mA
Input Data Word
(Two’s Complement)
4 mA Through 20 mA
I
Input
hex dec mA
8001 Overrange
> 21.339
43BB 17339 21.339
3E80 16000 20.0
0001 1 4.001
0000 0 4.0 through 3.2
8002 Open circuit < 3.2
Example
Measured value representation in different data formats.
Measuring range: 0 mA through 20mA
Measured value: 10 mA
Input data word:
Format HEX Value DEC Value Measured Value
IB IL 3A98 15 000 10 mA
IB ST 4000 16 384 10 mA
IB RT 4000 16 384 10 mA
Standardized display 2710 10 000 10 mA
24 6232A
Page 25
IB IL 24 AI 2/SF-230
Technical Data
General
Housing dimensions (width x height x depth) 12.2 mm x 120 mm x 71.5 mm
(0.480 in. x 4.724 in. x 2.815 in.)
Weight 47 g (without connector)
Operating mode Process data operation with 2 words
Connection method for the sensors 2-wire and 3-wire technology
Power supply for the sensors With an external power supply or with an additional
segment terminal with a fuse (IB IL 24 SEG/F)
Permissible temperature (operation) -25°C to +55°C (-13°F to +131°F)
Permissible temperature (storage/transport) -25°C to +85°C (-13°F to +185°F)
Permissible humidity (operation) 75%, on average, 85%, occasionally
In the range from -25°C to +55°C (-13°F to +131°F) appropriate measures against
increased humidity (> 85%) must be taken.
Permissible humidity (storage/transport) 75%, on average, 85%, occasionally
For a short period, slight condensation may appear on the housing if, for example, the
terminal is brought into a closed room from a vehicle.
Permissible air pressure (operation) 80 kPa to 106 kPa
(up to 2000 m [6562 ft.] above sea level)
Permissible air pressure (storage/transport) 70 kPa to 106 kPa
(up to 3000 m [9843 ft.] above sea level)
Degree of protection IP 20 according to IEC 60529
Class of protection Class 3 according to VDE 0106, IEC 60536
Deviations From Common Technical Data That Are Indicated in the IB IL SYS PRO UM E User Manual
Noise Immunity Test According to EN 50082-2
Electrostatic discharge (ESD) according to
IEC 61000-4-2
Mechanical Demands
Shock test according to IEC 60068-2-27,
IEC 60068-2-27
6232A 25
Criterion B
6 kV contact discharge
6 kV air discharge
15g load for 11 ms, half sinusoidal wave,
three shocks in each space direction and orientation
25g load for 6 ms, half sinusoidal wave,
three shocks in each space direction and orientation
Page 26
IB IL 24 AI 2/SF-230
Interface
INTERBUS interface Data routing
Power Consumption
Communications power U
L
Current consumption from U
I/O supply voltage U
ANA
Current consumption from U
L
ANA
7.5 V
Approximately 45 mA, typical
24 V DC
Approximately 12 mA, typical
Total power consumption Approximately 625 mW, typical
Supply of the Module Electronics and I/O Through Bus Terminal/Power Terminal
Connection method Potential routing
Analog Inputs
Number 2 analog single-ended inputs
Signals/resolution in the process data word (quantization)
Voltage 0 - 10 V 0 - 10.837 V (Format IB IL)
0 - 10.000 V (Format IB ST)
0 - 10.000 V (Format IB RT)
0 - 10.837 V (Standardized display)
±10 V ±10.837 V (Format IB IL)
±10.000 V (Format IB ST)
±10.000 V (Format IB RT)
±10.837 V (Standardized display)
Current 0 - 20 mA 0 - 21.6746 mA (Format IB IL)
0 - 20.000 mA (Format IB ST)
0 - 20.000 mA (Format IB RT)
0 - 21.6746 mA (Standardized display)
±20 mA ±21.6746 mA (Format IB IL)
±20.000 mA (Format IB ST)
±20.000 mA (Format IB RT)
±21.6746 mA (Standardized display)
4 - 20 mA 4 - 21.339 mA (Format IB IL)
4 - 20.000 mA (Format IB ST)
4 - 20.000 mA (Format IB RT)
4 - 21.339 mA (Standardized display)
0.333 mV/LSB
2.441 mV/LSB
0.305 mV/LSB
1.000 mV/LSB
0.333 mV/LSB
2.441 mV/LSB
0.305 mV/LSB
1.000 mV/LSB
0.6666 µA/LSB
4.8828 µA/LSB
0.6105 µA/LSB
1.000 µA/LSB
0.6666 µA/LSB
4.8828 µA/LSB
0.6105 µA/LSB
1.000 µA/LSB
0.533 µA/LSB
3.906 µA/LSB
0.4884 µA/LSB
1.000 µA/LSB
26 6232A
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IB IL 24 AI 2/SF-230
Analog Inputs (Continued)
Measured value representation In the formats
IB IL (15 bits with sign bit)
IB ST (12 bits with sign bit)
IB RT (15 bits with sign bit)
Standardized display (15 bits with sign bit)
For measured value representation in the formats "IB IL" and "Standardized display"
observe the information on page 16 and page 22.
Mean-value generation Over 16 measured values (can be switched off)
Conversion time of the A/D converter 120 µs, approximately
Analog Input Stages
Voltage Inputs
Input resistance > 220 k
Ω
Limit frequency (-3 dB) of the input filter 230 Hz
Process data update of both channels < 1.5 ms
Behavior upon sensor failure Going to 0 V
Maximum permissible voltage between analog
±32 V
voltage inputs and analog reference potential
Common mode rejection (CMR) 90 dB, minimum
Reference: Voltage input signal, valid for
110 dB, typical
permissible DC common mode voltage range
Permissible DC common mode voltage for
40 V between voltage input and FE
CMR
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IB IL 24 AI 2/SF-230
Analog Input Stages (Continued)
Current Inputs
Input resistance 50
Ω (shunt)
Limit frequency (-3 dB) of the input filter 230 Hz
Process data update of both channels < 1.5 ms
Behavior upon sensor failure Going to 0 mA/4 mA
Maximum permissible voltage between analog
current inputs and analog reference potential
±5 V (corresponding with 100 mA across the
sensor resistances)
Common mode rejection (CMR) 90 dB, minimum
Reference: Current input signal, valid for
110 dB, typical
permissible DC common mode voltage range
Permissible DC common mode voltage for
40 V between current input and FE
CMR
Maximum permissible current ±100 mA
Tolerance and Temperature Response of the Voltage Inputs (The error indications refer to the final value of the measuring range: 10 V)
Typical Maximum
Error at +23°C (73.4°F)
Offset error ±0.03% ±0.06%
Gain error ±0.05% ±0.10%
Differential non-linearity ±0.10% ±0.20%
Total error of the voltage inputs at +23°C (73.4°F)
±0.15% ±0.30%
Offset error + gain error + linearity error
Temperature response at -25°C to +55°C (-13°F to 131°F)
Offset drift T
Gain drift T
Total voltage drift T
KG
KVO
Ktot
= T
KVO
+ T
Total error of the voltage inputs
KG
±6 ppm/K ±12 ppm/K
±30 ppm/K ±50 ppm/K
±36 ppm/K ±62 ppm/K
±0.30% ±0.50%
(-25°C to +55°C[-13°F to +131°F])
Offset error + gain error + linearity error + drift error
28 6232A
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IB IL 24 AI 2/SF-230
Tolerance and Temperature Response of the Current Inputs
(The error indications refer to the measuring range final value of 20 mA)
Typical Maximum
Error at +23°C (73.4°F)
Offset error ±0.03% ±0.06%
Gain error ±0.10% ±0.10%
Differential non-linearity ±0.10% ±0.30%
Total error of the current inputs at +23°C (73.4°F)
±0.20% ±0.40%
Offset error + gain error + linearity error
Temperature response at -25°C to +55°C (-13°F to +131°F)
Offset drift T
Gain drift T
Total drift T
KIO
KG
Ktot
= T
KIO
+ T
KG
Total error of the current inputs (-25°C to +55°C [-13°F
±6 ppm/K ±12 ppm/K
±30 ppm/K ±50 ppm/K
±36 ppm/K ±62 ppm/K
±0.35% ±0.60%
to +131°F]) offset error + gain error + linearity error +
drift error
Additional Tolerances for Electromagnetic Interference
Type of Electromagnetic
Interference
Typical Deviation of the
Final Value of the
Measuring Range
(Voltage Input)
Typical Deviation of the
Final Value of the
Measuring Range
(Current Input)
Relative Absolute Relative Absolute
Electromagnetic fields
< ±2% < ±200 mV < ±2% < ±400 µA
field strength 10 V/m
according to IEC 61000-4-3/IEC
61000-4-3
Conducted interference
< ±1% < ±100 mV < ±1% < ±100 µA
Class 3 (test voltage 10 V)
according to IEC 61000-4-6/IEC
61000-4-6
Fast transients
< ±1% < ±100 mV < ±1% < ±100 µA
4 kV supply, 2 kV input
according to IEC 61000-4-4/IEC
61000-4-4
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IB IL 24 AI 2/SF-230
Safety Devices
Surge voltage Suppressor diodes in the analog inputs
Electrical Isolation/Isolation of the Voltage Areas
To provide electrical isolation between the logic level and the I/O area it is necessary to
supply the bus terminal and the sensors, which are connected to the anaolg input terminal
described in this data sheet, from separate power supplies. Interconnection of the 24 V
power supplies is not permitted.
Common Potentials
24 V main power, 24 V segment voltage, and GND have the same potential. FE is a separate
potential area.
Separate Potentials in the System Consisting of Bus Terminal/Power Terminal and I/O
Terminal
- Test Distance - Test Voltage
5 V supply incoming remote bus/7.5 V supply (bus logic) 500 V AC, 50 Hz, 1 min
5 V supply outgoing remote bus/7.5 V supply (bus logic) 500 V AC, 50 Hz, 1 min
7.5 V supply (bus logic)/24 V supply U
7.5 V supply (bus logic)/24 V supply U
/ I/O 500 V AC, 50 Hz, 1 min
ANA
/functional earth ground 500 V AC, 50 Hz, 1 min
ANA
I/Os/functional earth ground 500 V AC, 50 Hz, 1 min
Error Messages to the Higher-Level Control or Computer System
Failure of the internal voltage supply Yes
I/O error/user error Yes, error message through the process data
input words (see page 14)
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IB IL 24 AI 2/SF-230
Ordering Data
Description Order Designation Order No.
Terminal with two analog input channels IB IL 24 AI 2/SF-230 27 40 81 8
Connector with shield connector IB IL SCN-6 SHIELD 27 26 35 3
"Configuring and Installing the INTERBUS Inline
Product Range" User Manual
IB IL SYS PRO UM E 27 43 04 8
6232A 31
Page 32
IB IL 24 AI 2/SF-230
Phoenix Contact GmbH & Co
Flachsmarktstr. 8
32825 Blomberg
Germany
+ 49 - 52 35 - 30 0
+ 49 - 52 35 - 34 12 00
www.phoenixcontact.com
32 6232A
© Phoenix Contact 01/2001 Subject to technical modification TNR 90 05 95 0
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