IS220PSCAH1BC - Serial Communication I/O Module

SPECIFICATIONS:

Part Number: IS220PSCAH1BC
Manufacturer: General Electric
Series: Mark VIe
Number of Channels: 1 RS-485
Frame rate: 32 Hz
Product Type: Serial Communication I/O Module
Operating Temperature: -30 to 65 deg C
Weight: 0.8kg
Dimension: 16cm x16cm x 12cm
Availability: In Stock
Product of Origin: United States
Manual: GEI-100868

FUNCTIONAL DESCRIPTION:

IS220PSCAH1BC is a Serial Communication I/O Module manufactured and designed by General Electric as part of the Mark VIe Series used in distributed control systems. The Serial Communication IS220PSCAH1A I/O pack provides the electrical interface between one or two I/O Ethernet networks and a serial communications terminal board. The I/O pack contains a BPPC processor board common to all Mark VIe distributed I/O packs and a serial communications board. The communications board contains six serial transceiver channels, each of which can be individually configured to comply with RS-232, RS-422, or RS-485 half-duplex standards. Input to the I/O pack is through dual RJ-45 Ethernet connectors and a 3-pin power input. Output is through a DC-62 pin connector that connects directly with the associated terminal board connector. One of the Ethernet ports can be used to support Ethernet Modbus communication on Simplex networks. Visual diagnostics are provided through indicator LEDs. The IS220PSCAH1A I/O pack contains a functionally compatible BPPC that is supported in ControlST V04.07 and later.

INSTALLATION:

• Securely mount the desired terminal board.
• Directly plug one PSCA I/O pack into the SSCA terminal board connector.
• Mechanically secure the I/O packs using the threaded inserts adjacent to the Ethernet ports. The inserts connect with 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-62 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 operates over either port.
• If dual connections are used, the standard practice is to hook ENET1 to the network associated with the R controller; however, the PSCA is not sensitive to Ethernet connections and will negotiate proper operation over either port.
• 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 the inherent soft-start capability that controls the current inrush on the power application.
• From the ToolboxST application, add the PSCA module, and add and configure the required devices. From the Component Editor, press F1 for help.

DATAFLOW FROM PSCA TO CONTROLLER:

• Dataflow from the PSCA to the Mark VIe controller is of two types: fixed I/O and Modbus I/O. Fixed I/O is associated with the smart pressure transducers and the Kollmorgen® electric drive data.
• This data is completely processed every frame, the same as conventional I/O. These signals are mapped into signal space, have individual health bits, and have offset/gain scaling.
• Several of these signals are configured to support system limit checking. Modbus: Modbus I/O is the I/O associated with the Modbus ports.
• Because of the quantity of these signals, they are not completely processed in every frame; instead, they are packaged and transferred to the Mark VIe controller, over the IONet through a special service.
• This can accommodate up to 2400 bytes, at 4 Hz, or 9600 bytes at 1 Hz, or combinations thereof. This I/O is known as second-class I/O, where coherency is at the signal level only, not at the device or board level.
• Health bits are assigned to individual points in the same fashion as the other protocols, and system limit checking is not performed. Three consecutive time-outs are required before a signal is declared unhealthy.
• Diagnostic messages are used to annunciate all communication problems. The input value is cleared for a given signal after four consecutive time-outs occur on that signal.

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FREQUENTLY ASKED QUESTIONS:

What is a Serial Communication I/O module?

A Serial Communication I/O module is a device that facilitates serial communication between a computer or controller and external devices. It typically provides serial ports (such as RS-232, RS-485, or UART) for data transmission.

What are the common applications of Serial Communication I/O modules?

Serial Communication I/O modules are used in various applications, including industrial automation, data acquisition, embedded systems, robotics, and IoT (Internet of Things) devices. They enable connectivity with sensors, actuators, displays, and other peripherals.

What types of serial interfaces do these modules support?

Serial Communication I/O modules commonly support RS-232, RS-485, UART (Universal Asynchronous Receiver-Transmitter), SPI (Serial Peripheral Interface), and I2C (Inter-Integrated Circuit) interfaces. The specific interface types vary depending on the module.