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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.
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
6232A
01/2001
–
Process data update of both channels in
1.5 ms, maximum
–
Diagnostic indicator
–
230 Hz input filter
Figure 1
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.
IB IL 24 AI 2/SF-230 terminal
with connector
1
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Table of Contents
Summary of Contents for Phoenix Contact IB IL 24 AI 2/SF-230
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Page 1: Function
0 mA through 20 mA, ±20 mA, 4 mA through 20 mA – Two voltage measuring ranges: Figure 1 IB IL 24 AI 2/SF-230 terminal 0 V through 10 V, ±10 V with connector – Configuration of the independent channels... -
Page 2: Table Of Contents
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 ................ -
Page 3: Installation Instructions
(common for current and voltage) 1.4, 2.4 Shield Shield connection Figure 2 IB IL 24 AI 2/SF-230 terminal with the appropriate connector Installation Instructions High current flowing through the voltage jumpers U and U leads to a temperature rise of the voltage jumpers and the inside of the terminal. -
Page 4: Internal Circuit Diagram
IB IL 24 AI 2/SF-230 Internal Circuit Diagram Key: Protocol chip O P C Optocoupler Power supply unit with electrical isolation Microprocessor with multiplexer and analog/digital converter Reference voltage Electrically erasable programmable read-only memory Amplifier Coupling network Other symbols are explained in the IB IL SYS PRO UM E User Manual. -
Page 5: Electrical Isolation
IB IL 24 AI 2/SF-230 Electrical Isolation Figure 4 Electrical isolation of the single function areas 6232A... -
Page 6: Connection Notes
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. If one multi-wire cable is used to connect both sensors, connect the shielding as described above using the shield connector (see Figure 5). - Page 7 IB IL 24 AI 2/SF-230 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).
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Page 8: Connection Examples
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 Connection of Passive Sensors Figure 7 Connection of active sensors... - 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.
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Page 10: Programming Data
IB IL 24 AI 2/SF-230 Programming Data ID code (127 Length code 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 6232A... -
Page 11: Interbus Process Data Words
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 Word Word x reference 15 14 13 12 11 10 9 (Byte.bit) Byte Byte 0 Byte 1... - Page 12 IB IL 24 AI 2/SF-230 INTERBUS OUT Process Data Output Words With the two process data output words you can Default: configure each channel of the terminal Measuring range: 0 through 10 V independently. The following configurations are possible: Mean-value generation: Switched on –...
- Page 13 IB IL 24 AI 2/SF-230 Figure 10 Process data output words Most significant bit Least significant bit One process data output word is available for Bit 15: the configuration of each channel. Code Configuration Set bit 15 of the corresponding output word to 1 Default to configure the terminal.
- Page 14 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. Figure 11 Sequence of the process data input words in the INTERBUS ring and display of the bits...
- Page 15 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...
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Page 16: Formats For Representing The Measured Values
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. - Page 17 IB IL 24 AI 2/SF-230 Measuring range -20 mA through +20 mA/-10 V through +10 V Input Data Word -20 mA Through +20 mA -10 V Through +10 V (Two’s Complement) Input Input > +21.6746 > +10.837 8001 Overrange 7F00 32512 +21.6746...
- Page 18 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.
- Page 19 IB IL 24 AI 2/SF-230 Measuring range -20 mA through +20 mA/-10 V through +10 V Input Data Word -20 mA Through +20 mA -10 V Through +10 V (Two’s Complement) Input Input 7FF9 >21.5 >10.75 7FF8 20.0 through 21.5 10.00 through 10.75...
- Page 20 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.
- Page 21 IB IL 24 AI 2/SF-230 Measuring range -20 mA through +20 mA/-10 V through +10 V Input Data Word -20 mA Through +20 mA -10 V Through +10 V (Two’s Complement) Input Input ≥ +19.999389 ≥ +9.999939 7FFF 7FF7 +19.998779 +9.99939...
- Page 22 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.
- 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 0 V Through 10 V Input Data Word 0 mA Through 20 mA (Two’s Complement) (Two’s Input Input Complement) >...
- Page 24 IB IL 24 AI 2/SF-230 Measuring range 4 mA through 20 mA Input Data Word 4 mA Through 20 mA (Two’s Complement) Input > 21.339 8001 Overrange 43BB 17339 21.339 3E80 16000 20.0 0001 4.001 0000 4.0 through 3.2 8002 Open circuit <...
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Page 25: Technical Data
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... - Page 26 IB IL 24 AI 2/SF-230 Interface INTERBUS interface Data routing Power Consumption Communications power U 7.5 V Current consumption from U Approximately 45 mA, typical I/O supply voltage U 24 V DC Current consumption from U Approximately 12 mA, typical...
- Page 27 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"...
- Page 28 IB IL 24 AI 2/SF-230 Analog Input Stages (Continued) Current Inputs 50 Ω (shunt) Input resistance 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 ±5 V (corresponding with 100 mA across the...
- Page 29 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%...
- Page 30 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.
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Page 31: Ordering Data
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... - 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 6232A...