IS220PAOCH1B, REV D - Analog Output Module

SPECIFICATIONS:

Part Number: IS220PAOCH1B, REV D
Manufacturer: General Electric
Series: Mark VIe
Product Type: Analog Output Module
Number of channels: Eight current output channels
Analog Outputs: 0-20 mA, up to 900 Ω
Accuracy: ±0.5% over -30 to 65°C
Size: 8.26 cm high x 4.19 cm wide x 12.1 cm
Availability: In Stock
Country of Origin: USA

FUNCTIONAL DESCRIPTION:

IS220PAOCH1B, REV D is an Analog Output Module manufactured and designed by General Electric as part of the Mark VIe Series used in GE Distributed Control Systems. An electrical interface between one or two I/O Ethernet networks and an analog output terminal board is provided by the Analog Output (PAOC). A BPPx processor board and an acquisition board pair tailored to the analog output function are both present in the PAOC. Up to eight simplex 0-20 mA current loop outputs can be provided by the PAOC, which also has an analog-to-digital converter for each output's current feedback. Dual RJ-45 Ethernet connectors and a three-pin power input serve as the PAOC's inputs. The related terminal board connector is directly connected to the output via a DC-37 pin connector. Indicator LEDs are used to display visual diagnostics.

INSTALLATION:

• Directly connect the PAOC I/O pack(s) to the connector on the terminal board (s).

• Using the threaded studs next to the Ethernet ports, mechanically fasten the I/O pack(s). The studs slip into a mounting bracket made for the particular style of the terminal board.

• It is important to position the bracket such that the DC-37 pin connector connecting the I/O pack and the terminal board is not subjected to right-angle forces. In the course of the product's service life, the adjustment should only be necessary once.

• Depending on the setup of the machine, connect either one or two Ethernet wires. Either port will work with the I/O pack. When using dual connections, it is customary to link ENET1 to the network connected to the R controller.

• Connect the connector on the side of the PAOC to provide power to the I/O pack. Because the I/O pack has an inherent soft-start feature that regulates current inrush on power application, it is not essential to turn off the power before plugging the cable in.

• If necessary, set up the I/O pack using the ToolboxST program. Press F1 to bring up the Component Editor's help menu.

ANALOG OUTPUT HARDWARE:

Eight simplex 0-20 mA analog outputs with 18 V compliance are included in the PAOC. An external transistor amplifier is controlled and driven by a 16-bit digital-to-analog converter (DAC), which also controls the output current. To alert the control if the internal temperature of the pack becomes too high, a temperature sensor is built inside the board. Additionally, each analog output circuit has a mechanical normally open relay that controls whether the output is enabled or disabled. When the disabled relay is turned off, the output flows via the relay and opens a circuit between the customer load attached to the terminal board and the analog output of the PAOC. The location of the mechanical relay is signaled by an LED using the second normally open contact of the relay.

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FREQUENTLY ASKED QUESTIONS:

What is an Analog Output Module?

An Analog Output Module is a component in industrial control systems that converts digital signals from a controller (like a PLC or DCS) into analog signals (e.g., 4-20 mA, 0-10 V) to control field devices, such as valves, actuators, or meters.

What are the types of analog signals supported by an Analog Output Module?

Common analog signal types include current (4-20 mA, 0-20 mA) and voltage (0-10 V, ±10 V). Some modules may support additional ranges depending on the application requirements.

How does an Analog Output Module work?

It receives a digital command from the controller, which it converts to a proportional analog signal. This signal then controls the connected device’s position, speed, or other parameters.