DS3800HIOA | New Surplus GE Mark V I/O Expansion Board

Description

Product Introduction

The DS3800HIOA is the I/O expansion board for the Mark V—it extends the system’s I/O capacity by providing additional backplane slots for I/O modules. This board is used when you need more I/O points than a standard Mark V rack can accommodate. The HIOA interfaces with the main controller via the backplane and provides a secondary backplane for additional I/O modules. It’s a practical solution for expanding the system without replacing the main controller.

We’ve used the HIOA in a project where we needed to add 64 additional I/O points to an existing Mark V system. The HIOA provided the expansion backplane, allowing us to add the necessary I/O modules without replacing the main controller. The board’s 32 I/O point capacity was sufficient for the expansion, and the backplane communication ensured seamless integration with the main controller. The HIOA is a cost-effective solution for system expansion.

Key Technical Specifications

Compatible Replacement Models

Frequently Asked Questions (FAQ)

Q: What’s the purpose of the HIOA in a Mark V system?
A: The HIOA provides I/O expansion by adding additional backplane slots for I/O modules. It’s used when the standard Mark V rack doesn’t have enough slots for the required I/O. The HIOA interfaces with the main controller and provides a secondary backplane for additional I/O modules.

Q: How many I/O points can the HIOA support?
A: The HIOA supports up to 32 additional I/O points. This includes both analog and discrete I/O modules. If you need more than 32 points, you can use multiple HIOA boards or the higher-capacity HIOB variant (64 points).

Q: Can I use the HIOA with all Mark V I/O modules?
A: Yes, the HIOA is compatible with all Mark V I/O modules, including analog, discrete, frequency, and counter modules. The board provides the backplane interface for the modules to communicate with the main controller.

Q: Does the HIOA require additional power?
A: The HIOA draws power from the Mark V backplane. It does not require a separate power supply. The additional I/O modules connected to the expansion backplane will also draw power from the system’s power supply. Check your total power budget when adding expansion boards.

Q: How do I configure the HIOA in the Mark V system?
A: The HIOA is automatically recognized by the Mark V controller. You’ll need to configure the I/O mapping in the Mark V software to include the additional I/O points. The specific configuration steps are in GE’s application manual (GEI-100890). It’s a straightforward process that typically takes 1-2 hours.

Q: Does the HIOA have conformal coating?
A: Not by default. The HIOA’s suffix typically indicates termination type, not coating. If you need conformal coating for harsh environments, look for a suffix with a “G” (e.g., DS3800HIOA1G1G). The standard HIOA is suitable for indoor environments. If your plant has high humidity or corrosive conditions, consider a coated variant.

Q: Can I use the HIOA to expand a Mark V system beyond its standard capacity?
A: Yes, the HIOA is specifically designed for system expansion. You can add multiple HIOA boards to expand the I/O capacity further. However, the total number of I/O points is limited by the Mark V controller’s addressing capacity. Check the system specifications before planning a large expansion.

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