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GE VersaPoint IC220ALG221 System Manual

Analog in 15 bit voltage/current 8ch
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VERSA POINT I/O MODULE
ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH
IC220ALG221
6226B_GE
This data sheet is only valid in asso-
ciation with the System Manual.
Function
The terminal is designed for use within an
VersaPoint station. It is used to measure analog
voltage or current signals.
Features
–
Eight analog single-ended signal inputs for
the connection of either voltage or current si-
gnals
–
Sensors are connected using 2-wire techno-
logy
–
Various current and voltage measuring ran-
ges
–
Channels are configured independently of
one another using the bus
–
Measured values can be represented in five
different formats
–
16-bit analog-to-digital converter
–
Process data multiplex operation
–
Diagnostic indicators
6226B_GE
09/2002
Figure 1
Please note that the connectors are
not supplied as standard with the ter-
minal. Please refer to the ordering
data on page 45 to order the appropri-
ate connectors for your application.
The ANALOG IN 15 BIT VOLTAGE/
CURRENT 8CH terminal with
connectors
1
loading

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Summary of Contents for GE VersaPoint IC220ALG221

  • Page 1 VERSA POINT I/O MODULE ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 6226B_GE 09/2002 This data sheet is only valid in asso- ciation with the System Manual. Function The terminal is designed for use within an VersaPoint station. It is used to measure analog voltage or current signals.
  • Page 2 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Local Diagnostic Indicators and Terminal Assignment Local Diagnostic Indicators Des. Color Meaning Green Bus diagnostics Terminal Assignment for Each Connector Terminal Signal Assignment Points Voltage input channel 1 Voltage input channel 2 Current input channel 1 Current input channel 2 1.3, 2.3 -1, -2...
  • Page 3 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Internal Circuit Diagram Figure 3 Internal wiring of the terminal points Key: Power supply unit with electrical Protocol chip O P C isolation Optocoupler Reference voltage source Microprocessor Analog-to-digital converter Electrically erasable, reprogram- Amplifier mable read-only memory Microprocessor monitoring...
  • Page 4 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Electrical Isolation Figure 4 Electrical isolation of the individual function areas Connection Notes Do not simultaneously apply current and voltage signals to one input channel as you will not obtain valid measured values. Do not connect voltages above ±2.5 V to a current input.
  • Page 5 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Connection Examples Programming Data Observe the connection notes on ID code page 4. Length code Figure 5 shows the connection schematically Process data channel 32 bits (without shield connector). Input address area 4 bytes Output address area 4 bytes Connection of Active Sensors...
  • Page 6 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Process Data Words Process Data Output Words for the Configuration of the Terminal (see page 7) Process Data Output Word 0 (OUT[0]) Process Data Output Word 1 (OUT[1]) Byte 0 Byte 1 Byte 2 Byte 3 OUT[0] (Byte.bit)
  • Page 7 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Process Data Output Words OUT[0] and OUT[1] The terminal must be configured using the two After applying voltage (power up) to process data output words. The word OUT[0] the VersaPoint station, the message contains the command and the word OUT[1] "Measured value invalid"...
  • Page 8 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 OUT[0] (Command Code) OUT[0] Assignment Command Bit 15 to bit 8 (command): Bit 15 to Bit 8 OUT[0] Command Function 0x00 Read measured value of channel x 1x00 Read configuration of channel x 0 3C00 Read firmware version and module identification 4x00...
  • Page 9 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 OUT[1] (Parameter Word) The parameters for the commands 4x00 , 5x00 , and 6000 must be specified in OUT[1]. This parameter word is only evaluated for these commands. OUT[1] Assignment Filter Format Measuring range If invalid parameters are specified in the parameter word, the command will not be exe- cuted.
  • Page 10 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Bit 3 to bit 0: Code Measuring Range (Voltage) Code Measuring Range (Current) 0000 0 V to 10 V (default) 1000 0 mA to 20 mA 0001 ±10 V 1001 ±20 mA 0010 0 V to 5 V 1010 4 mA to 20 mA...
  • Page 11 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Process Data Input Words IN[0] and IN[1] The measured values and diagnostic messages (diagnostic codes) are transmitted to the controller board or computer using the two process data input words. The contents of the words vary according to the command.
  • Page 12 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 IN[1] The input word IN[1] varies depending on the command. IN[1] contains the firmware version and module identification for the 3C00 command. IN[1] Assignment Firmware version Module ID Example: 123 Terminal equipped with firmware version 1.23 For the commands 1x00 , 4x00 , and 6000...
  • Page 13 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 For the 0x00 and 5x00 commands, IN[1] contains the analog measured value. IN[1] Assignment Measured value in the appropriate format Figure 8 Representation of the measured values in the different formats Sign bit Open circuit Analog value Overrange...
  • Page 14 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 IN[0] and IN[1] for the Group-Commands 7x00 Figure 9 Process data input words For the group commands 7x00 , both input words contain the measured values of the channels that correspond with the group command. Group Commands for Two 16-bit Channels: 7400 , 7500 , 7600...
  • Page 15 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Group Commands for Four 8-bit Channels: 7000 and 7100 With commands for four channels, the analog values for two channels are mapped to every input word. The measured value for each channel is represented in eight bits. This measured value corre- sponds to bits 15 to 8 in the format displays of a 16-bit value.
  • Page 16 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Formats for Representation of Measured Values To ensure that the terminal can be operated in previously used data formats, the measured value re- presentation can be switched to different formats. The "IB IL" format is the default. Abbreviations used in the following tables: Overrange Under range...
  • Page 17 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Significant Measured Values Voltage Ranges Input Data Word 0 V to 5 V 0 V to 10 V 0 V to 25 V 0 V to 50 V (Two’s Complement) 8001 > +5.419 >...

  • Page 18: Table Of Contents

    ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Current Ranges: Input Data Word 0 mA to 20 mA 0 mA to 40 mA (Two’s Complement) 8001 > +21.6746 > +43.3493 7F00 32512 +21.6746 +43.3493 7530 30000 +20.0 +40.0 0001 +0.66667 µA +1.3333 µA 0000 0000...

  • Page 19: Hex Dec

    ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 "IB ST" Format The measured value is represented in bits 14 to 3. The remaining 4 bits are sign, measuring range, and error bits. This format corresponds to the data format used on INTERBUS ST modules. Measured value representation in "IB ST"...

  • Page 20: Input Data Word (Two's Complement) Hex

    ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Current Ranges: Input Data Word 0 mA to 20 mA 0 mA to 40 mA (Two’s Complement) > + 43.0 7FF9 32761 >+21.5 7FF8 32760 +19.9951 to +21.5 +39.9902 to +43.0 4000 16384 +10.0 +20.0 0008...

  • Page 21: 0000 Ffff -1

    ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 "IB RT" Format The measured value is represented in bits 14 to 0. An additional bit (bit 15) is available as a sign bit. This format corresponds to the data format used on INTERBUS RT modules. Diagnostic codes and error bits are not defined in this data format.

  • Page 22: Iin Ma

    ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Current Ranges: Input Data Word 0 mA to 20 mA 0 mA to 40 mA (Two’s Complement) ≥ +19.9993896 ≥ + 39.9987793 7FFF 32767 7FFE 32766 +19.9987793 +39.9975586 4000 16384 0001 +0.6104 µA +1.2207 µA 0000 Input Data Word...
  • Page 23 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 "Standardized Display" Format The data is represented in bits 14 to 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 in- dicates the corresponding value without conversion.
  • Page 24 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Significant Measured Values Voltage Ranges Input Data Word 0 V to 5 V 0 V to 50 V ±5 V (Two’s Complement) 8001 > +5.419 > +54.187 > +5.419 152B 5419 +5.419 +54.187 +5.419 1388 5000...
  • Page 25 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Input Data Word 0 V to 25 V ±25 V (Two’s Complement) 8001 > +27.093 > +27.093 69D5 27093 +27.093 +27.093 61A8 25000 +25.0 +25.0 0001 +1.0 mV +1.0 mV 0000 0000 < –...
  • Page 26 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Current Ranges: Input Data Word 0 mA to 20 mA Input Data Word ±40 mA (Two’s Complement) (Two’s Complement) 8001 > +21.6747 8001 > +43.349 54AA 21674 +21.6747 10EE 4334 +43.349 4E20 20000 +20.0 0FA0 4000...
  • Page 27 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Examples of Measured Value Representation in Various Data Formats Measuring range: 0 mA to 20 mA Measured value: 10 mA Input data word: Format hex Value dec Value Measured Value IB IL 3A98 15,000 10 mA IB ST...
  • Page 28 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 "PIO" Format The PIO format enables high-resolution representation of measured values in the 4 mA to 20 mA cur- rent measuring range. In this format, an imaginary measuring range of 0 mA to 25 mA is divided into quantization steps (65,536 steps).
  • Page 29 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Process Data Input Words in the Event of an Error In the event of an error, the command is mirrored in the input word IN[0] and displayed with the set error bit. The input word IN[1] indicates the error cause. The following diagnostic codes are valid for configuration or hardware errors in all data formats: Command Code...
  • Page 30 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Startup Options The following startup options illustrate how to use the ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH terminal. Standard Method 1 Task: – All input channels are to be operated in the same configuration (6000 –...
  • Page 31 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Configure terminal: OUT[0]: 6000 OUT[1]: 0301 Configuration completed successfully: IN[0] 6000 IN[1]: 0301 Error during configuration: IN[0] F000 IN[1]: 0301 A cyclic program sequence, which reads the measured values of the individual channels, takes place after configuration has been successfully completed.
  • Page 32 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Figure 10 Schematic initialization and cyclic program sequence when configuring the entire terminal 6226B_GE...
  • Page 33 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Standard Method 2 Task: – The input channels are to be operated in different configurations. The channels are to be configured first (4x00 After configuration, the measured values are to be read (0x00 –...
  • Page 34 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 With the command in OUT[0], the configuration according to OUT[1] is sent to the electronics module for each channel. After configuration of a channel is complete, the command and the configuration are mirrored in the process data input words. Configure channel 1: OUT[0]: 4000...
  • Page 35 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Figure 11 Schematic initialization and cyclic program sequence when configuring channels with dif- ferent parameters 6226B_GE...
  • Page 36 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Special Methods The group commands are regarded as special methods. Task: – The measured values of channels 1 to 4 (group A) are to be read in one cycle and the measured values of channels 5 to 8 (group B) in another cycle (7000 for group A;...
  • Page 37 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Application Notes Notes on typical applications are provided here Closed-Loop Control Tasks in order to facilitate optimal use of the ANALOG The ANALOG IN 15 BIT VOLTAGE/CURRENT IN 15 BIT VOLTAGE/CURRENT 8CH terminal 8CH terminal makes closed-loop control tasks in different operating modes.
  • Page 38 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Signal Scanning or Fast, Sudden Signals Linked Voltages The ANALOG IN 15 BIT VOLTAGE/CURRENT When using linked voltages, ensure that the 8CH terminal is ideal for scanning signals. As a ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH result of the high input cut-off frequency terminal has eight single-ended inputs.
  • Page 39 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Current Loops If the ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH terminal is used to measure currents in cur- rent loops, please ensure that the eight current inputs operate on a common ground potential (single-ended).
  • Page 40 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Tolerance and Temperature Response Voltage inputs = 25°C (77°F). Measuring Range Absolute Absolute Relative Relative (Typical) (Maximum) (Typical) (Maximum) 0 V to 5 V; ±5 V ±1.0 mV ±5.0 mV ±0.02% ±0.10% 0 V to 10 V; ±10 V ±2.0 mV ±10.0 mV ±0.02%...
  • Page 41 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Additional Tolerances for Electromagnetic Interference Type of Electromagnetic Typical Deviation From the Typical Deviation From the Interference Measuring Range Final Measuring Range Final Value (Voltage Input) Value (Current Input) Relative Relative Electromagnetic fields; <...
  • Page 42 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Technical Data General Data Housing dimensions (width x height x depth) 48.8 mm x 120 mm x 71.5 mm (1.921 in. x 4.724 in. x 2.815 in.) Weight 125 g (without connectors) Operating mode Process data operation with 2 words Type of sensor connection 2-wire technology...
  • Page 43 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Analog Inputs Number 8 analog single-ended inputs Signals/resolution in the process data word See tables in Section „Formats for (quantization) Representation of Measured Values“ auf Seite 16 Measured value representation In the formats IB IL (15-bit with sign bit) IB ST...
  • Page 44 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Analog Input Stages (Continued) Current Inputs 25 Ω (shunt) Input resistance Limit frequency (-3 dB) of the input filter 3.5 kHz Behavior upon sensor failure Goes to 0 mA/4 mA Maximum permissible voltage between analog ±2.5 V (corresponds with 100 mA via the shunts) current inputs and an analog reference poten- tial or between two current inputs...
  • Page 45 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 Ordering Data Description Order Designation Order No. Terminal with eight analog input channels ANALOG IN 15 BIT IC220ALG221 VOLTAGE/CURRENT 8CH Four connectors with shield connector for the connection of two cables are needed for complete fitting of the terminal.
  • Page 46 ANALOG IN 15 BIT VOLTAGE/CURRENT 8CH IC220ALG221 6226B_GE...