IS220PAICH1A, REV G - Analog I/O Module

TECHNICAL SPECIFICATIONS

Part Number: IS220PAICH1A, REV G
Revision: REV G
Manufacturer: General Electric
Series: Mark VIe Control System
Input Span: 1-5 V dc
Product Type: Analog Input/Output Pack
Input Channels: 10 Analog Inputs (0–20 mA, 4–20 mA,
Number of channels: 12 Channels
Output Channels: 2 Analog Outputs (0–20 mA, 4–20 mA Configurable)
Analog-to-Digital Conversion: 16-Bit Precision A/D Converter
Digital-to-Analog Conversion: 12-Bit Resolution D/A Converter
Processor Core: Onboard Dual-Core High-Speed Processor Engine
Communication Ports: Dual RJ-45 Ethernet Ports (10/100 Mbps IONet Interface)
Input Power Supply: Nominal 28 VDC
Power Consumption: 5.3 W
Operating Temperature Limits: -30°C to +65°C (-22°F to +149°F)
Storage Temperature Range: -40°C to +85°C (-40°F to +185°F)
Relative Humidity Threshold: 5% to 95% (Non-condensing)
Conformal Coating: Enhanced Industrial Acrylic Coating (Rev G Standard)
Availability: In Stock
Weight: Approximately 0.45 kg (0.99 lbs)
Size: 8.26 cm high x 4.19 cm
Technology: Surface mount
Country of Origin: United States
Manual: GEH-6721D

FUNCTIONAL DESCRIPTION FOR IS220PAICH1A, REV G:

IS220PAICH1A, REV G is an Analog I/O Module designed and manufactured by General Electric as part of the GE Distributed Mark VIe control system platform. The PAICH1A I/O pack provides the electrical interface between one or two I/O Ethernet networks and an analog input terminal board. The pack contains a processor board common to all Mark VIe distributed I/O packs and an acquisition board specific to the analog input function. The 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 0-20 mA current loop inputs. The last two inputs may be configured as 1 mA or 0- 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 PAICH1A.

The PAICH1A 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 pack is through dual RJ45 Ethernet connectors and a three-pin power input. Output is through a DC-37pin connector that connects directly with the associated terminal board connector. Visual diagnostics are provided through indicator LEDs, and local diagnostic serial communications are possible through an infrared port.

COMPATIBILITY:

PAICH1A is compatible with the analog input terminal board (TBAIHIC), and the STAI board, but not the DIN rail-mounted DTAI board. Control mode refers to the number of I/O packs used in a signal path:

• Simplex uses one I/O pack with one or two network connections.
• Dual uses two I/O packs with one or two network connections.
• TMR uses three I/O packs with one network connection on each.

Simplex uses one I/O pack with one or two network connections. Dual uses two I/O packs with one or two network connections. TMR uses three I/O packs with one network connection on each.

OPERATION:

The processor application code contains all the logic necessary to allow the pack to operate from one or two Ethernet inputs. When operated from two Ethernet inputs, both network paths are active all the time. A failure of either network will not result in any disturbance to the I/O pack operation, and the failure will be indicated through the working network connection. This arrangement is more tolerant of faults than a classic hot-backup system where the second port is only used after a primary port failure is detected. The Ethernet ports on the processor auto-negotiate between 10 MB/s and 100 MB/s speed, and between half-duplex and full-duplex operation. An industry-standard infrared serial communications port is provided on the processor board. Accessible through the pack front, this port provides diagnostic information on the pack status and an ability to program the pack when both Ethernet connections fail. It is possible to communicate with this port using most notebook computers and most hand-held Personal Digital Assistants (PDA).

ANALOG OUTPUT HARDWARE:

The PAICH1A includes two 0-20 mA analog outputs capable of 18 V compliance running simplex or TMR. A 14-bit DAC commands a current reference to the current regulator loop in the PAIC that senses current both in the PAIC pack and on the terminal board. In TMR mode, the three current regulators in each PAIC share the commanded current loads among themselves. Each analog output circuit also includes a normally open mechanical relay to enable or disable operation of the output. The relay is used to remove a failed output from a TMR system, allowing the remaining two PAICs to create the correct output without interference from the failed circuit. When the suicide relay is deactivated, the output opens through the relay, open-circuiting that PAIC's analog output from the customer load that is connected to the terminal board.

WHY BUY FROM WOC

WOC maintains an extensive inventory of OEM replacement parts for GE Distributed Mark VIe control systems, enabling customers to source critical components quickly and minimize equipment downtime. We supply unused and professionally rebuilt boards and provide specialized repair and refurbishment services to restore faulty boards to reliable operating condition, backed by warranty coverage for added confidence. With an experienced technical team available 24/7, we provide responsive support for OEM components, replacements, and automation-related requirements. Whether you need pricing, availability, replacement parts, or technical assistance, our team is ready to provide fast, reliable, and personalized support to keep your control systems operating efficiently.

FREQUENTLY ASKED QUESTIONS:

What is the GE IS220PAICH1A, REV G?

It is a Mark VIe Analog I/O Pack that mounts directly to a terminal board to digitize 10 analog field inputs and control 2 analog field outputs via dual IONet Ethernet connections.

What analog output signals are supported by the PAICH1A?

The module provides two 0–20 mA analog outputs. The outputs can operate in simplex or TMR configurations and support up to 18 V compliance.

Which terminal boards are compatible with the Analog I/O Module?

The PAICH1A is compatible with the TBAIHIC analog input terminal board and STAI board. It is not designed for use with the DIN rail-mounted DTAI board.

What type of network communication does the Analog I/O Module use?

The module communicates with the Mark VIe control system through dual RJ-45 Ethernet ports using the IONet interface. The ports support automatic negotiation between 10 Mbps and 100 Mbps and between half-duplex and full-duplex operation.

Why buy an Analog I/O Module from World of Controls?

We specialize in GE Speedtronic and Mark VI/Mark VIe control system hardware, offering unused and rebuilt components, repair services, warranty support, and worldwide delivery. Our technical team helps customers identify the appropriate replacement and source critical components efficiently to reduce equipment downtime.