IS220PAICH2A, REV C - Analog Input/Output Module

SPECIFICATIONS:

Part Number: IS220PAICH2A, REV C
Manufacturer: General Electric
Series: Mark VIe
Product Type: Analog Input/Output Module
Number of channels: 12
Input Span: 1 - 5 V dc
Input COnverter Resolution: 16-bit
Scan Time: 5ms
Power supply voltage: 28 V dc
Voltage Range: 14 to 32 V dc
Output Load: 800 Ohm for 4 - 20 mA
Mounting: DIN-rail mounting
Technology: Surface mount
Operating temperature: -30 to 65°C
Size: 8.26 cm high x 4.19 cm
Repair: 3-7 Day
Availability: In Stock
Country of Origin: United States
Manual: GEH-6721_Vol_II

FUNCTIONAL DESCRIPTION:

IS220PAICH2A, REV C is an Analog Input/Output Module manufactured and designed by General Electric as part of the Mark VIe Series used in GE Distributed Turbine Control Systems. The Analog I/O pack (PAIC) provides the electrical interface between one or two I/O Ethernet networks and an analog input terminal board. The PAIC contains a BPPX processor board and an acquisition board specific to the analog input function. The I/O pack is capable of handling up to 10 analog inputs, the first eight of which can be configured as +5 V or +10 V inputs, or 4-20 mA current loop inputs. The last two inputs may be configured as ±1 mA or 4-20 mA current inputs.

The load terminal resistors for current loop inputs are located on the terminal board and voltage is sensed across these resistors by the PAIC. The PAICHI also includes support for two 0-20 mA current loop outputs. The PAICH2 includes extra hardware to support 0-200 mA current on the first output. Input to the I/O pack is through dual RJ-45 Ethernet connectors and a three-pin power input. Output is through a DC-37 pin connector that connects directly with the associated terminal board connector. Visual diagnostics are provided through indicator LEDs.

COMPATIBILITY:

• The PAIC I/O pack includes one of the following compatible BPPx processor boards.
• The PAICHIA and H2A contain a BPPB processor board. The PAICHIB and H2B contain a functionally compatible BPPC that is supported in the ControlST* software suite V04.03 and later. PAICH2A and H2B also include extra hardware to support 0-200 mA current on the first output.
• The PAIC is compatible with the analog input terminal board (TBAIHIC), and the STAI board, but not the DIN rail-mounted DTAI board.
• The PAIC is only compatible with the HIC version of TBAI and will report a board compatibility problem with any of the earlier revisions. No physical damage will result if a PAIC is powered up on an older board in error.

INSTALLATION:

• Directly plug the PAIC I/O pack into the terminal board connectors.
• Mechanically secure the I/O pack(s) using the threaded studs adjacent to the Ethernet ports. The studs slide into a mounting bracket specific to the terminal board type. The bracket location should be adjusted such that there is no right-angle force applied to the DC-37 pin connector between the I/O pack and the terminal board. The adjustment should only be required once in the service life of the product.
• Plug in one or two Ethernet cables depending on the system configuration. The I/O pack will operate over either port. If dual connections are used, the standard practice is to connect ENETI to the network associated with the R controller.
• Apply power to the I/O pack by plugging in the connector on the side of the pack. It is not necessary to remove power from the cable before plugging it in because the I/O pack has inherent soft-start capability that controls current inrush on power application.

CONNECTORS:

• A DC-37 pin connector on the underside of the I/O pack connects directly to the discrete input terminal board. The connector contains the 24 input signals, ID signal, relay coil power, and feedback multiplex command.
• An RJ-45 Ethernet connector named ENETI on the side of the pack is the primary system interface.
• A second RJ-45 Ethernet connector named ENET2 on the side of the pack is the redundant or secondary system interface.
• A 3-pin power connector on the side of the I/O pack is for 28 V de power for the I/O pack and terminal board.

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FREQUENTLY ASKED QUESTIONS:

What power supply is required for an Analog I/O module?

Most analog I/O modules operate on a 24V DC power supply, although the exact voltage requirements depend on the specific model. Some industrial-grade modules may support a wider voltage range for flexible deployment in different control systems.

What is the difference between unipolar and bipolar analog inputs?

Unipolar inputs handle signals that range from 0 to a positive maximum voltage (e.g., 0-10V or 0-20mA), meaning the signal always remains positive. Bipolar inputs, on the other hand, allow both positive and negative signal ranges (e.g., ±10V), making them suitable for applications requiring symmetrical signal variations, such as AC signal measurements or differential pressure sensing.

What is signal-to-noise ratio (SNR), and how does it impact Analog Input performance?

SNR represents the ratio of the desired signal strength to background noise, typically measured in decibels (dB). A higher SNR indicates cleaner signal acquisition, leading to more accurate data processing. Factors affecting SNR include shielding, grounding, and the quality of analog-to-digital conversion in the module.