DS3800HIOB | GE Mark V High-Capacity I/O Expansion Base Board

Description

Product Introduction

The DS3800HIOB is the high-capacity I/O expansion board for the Mark V—it provides 64 additional I/O points, double the capacity of the HIOA. This board is used when you need to add a significant number of I/O points to a Mark V system without replacing the main controller. The HIOB interfaces with the main controller via the backplane and provides a secondary backplane for additional I/O modules. It’s a practical solution for large system expansions or new installations that require extensive I/O capacity.

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

Key Technical Specifications

Compatible Replacement Models

Frequently Asked Questions (FAQ)

Q: What’s the advantage of the HIOB over the HIOA?
A: The HIOB provides 64 I/O points, double the capacity of the HIOA (32 points). This reduces the number of expansion boards needed for large system expansions, saving rack space and simplifying the system architecture. The HIOB is the preferred choice for large-scale expansions.

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

Q: Can I use the HIOB with all Mark V I/O modules?
A: Yes, the HIOB 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 HIOB require additional power?
A: The HIOB 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: Does the HIOB have conformal coating?
A: Not by default. The HIOB’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., DS3800HIOB1G1G). The standard HIOB is suitable for indoor environments. If your plant has high humidity or corrosive conditions, consider a coated variant.

Q: Can I use the HIOB to expand a Mark V system beyond its standard capacity?
A: Yes, the HIOB is specifically designed for system expansion. You can add multiple HIOB 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.

Q: What’s the backplane current draw of the HIOB?
A: The HIOB draws 1.0A from the 5V backplane rail. This is higher than the HIOA (0.8A) due to the increased capacity. The Mark V power supply is rated at 6A on the 5V rail, so the HIOB is within the limit. If your rack has multiple HIOB boards, check your total backplane current. We recommend keeping total backplane current below 5.5A for margin.

GE DS200TURQF1ACB
GE DS200TVCOG1A
GE DS200UCIAG1A