General Electric IS220PDIOH1B Mark VIe Series Discrete Input/Output (I/O) Module

Product Overview

The GE IS220PDIOH1B is a Discrete I/O Pack for the Mark VIe and Mark VIeS distributed control systems. It provides 24 discrete contact inputs via terminal board connection, with relay output capability determined by the paired terminal board configuration. The pack mounts on TDBS/TDBT/TDBSH/TDBTH series terminal boards for simplex or TMR applications and communicates with controllers via dual RJ-45 Ethernet IONet connections. Reference: GEH-6725 (Mark VIe/VIeS Controls Equipment).

Key Specifications

• Model: IS220PDIOH1B
• Type: Discrete I/O Pack
• Series: Mark VIe / Mark VIeS
• Contact Inputs: 24 (via terminal board)
• Input Voltage Range: 0–32 VDC
• Output Capability: Dependent on paired terminal board (TDBS/TDBT/TDBSH/TDBTH)
• Output Voltage: Up to 32 VDC
• Output Current: Up to 3.15 A DC (per terminal board specification)
• Contact Wetting Output: Up to 32 VDC, 110 mA
• Power Supply: 27.4–28.6 VDC (nominal 28 VDC)
• Power Consumption: Max 0.81 A @ 28 VDC
• Ethernet: Dual RJ-45 IONet ports
• Field Connection: DC-37 pin connector to terminal board
• Operating Temperature: -30°C to +65°C

Environmental Specifications

• Operating Temperature: -30°C to +65°C
• Storage Temperature: -40°C to +85°C
• Humidity: 5% to 95% RH (non-condensing)

Installation Guide

1. Install the IS220PDIOH1B on a compatible terminal board (TDBS for simplex, TDBT for TMR).
2. Connect 24 VDC field contacts to the terminal board input terminals.
3. Wire relay outputs (if equipped on terminal board) to field devices, observing current ratings.
4. Connect dual Ethernet cables to IONet switches for controller communication.
5. Apply 28 VDC power and verify input/output status via ToolboxST diagnostics.

FAQ

• Q: What is the difference between PDIO and separate PDIA/PDOA packs?
  A: PDIO combines input acquisition with terminal-board-dependent output capability, reducing cabinet space compared to using separate PDIA and PDOA modules.
• Q: Does PDIO have built-in relay outputs?
  A: The IS220PDIOH1B pack itself provides 24 contact inputs. Relay outputs are implemented on the paired terminal board (e.g., TDBTH with mechanical relays). Always verify terminal board output specifications.
• Q: Is the PDIO pack hot-swappable?
  A: In Mark VIe systems, I/O packs can be replaced online; however, follow proper ESD procedures and system-specific maintenance guidelines.
• Q: What is the difference between H1A and H1B revisions?
  A: H1B includes updated certifications and hardware improvements; verify terminal board compatibility before mixing revisions.

Selection Tips

• Choose IS220PDIOH1B when discrete inputs are required and output needs are handled by the terminal board.
• Verify total output current does not exceed the paired terminal board power supply capacity.
• Use TDBS terminal boards for simplex; TDBT for TMR configurations.

Data Source: Verified against GE official manual GEH-6725 (Mark VIe/VIeS Controls Equipment). Relay output specifications depend on paired terminal board; consult terminal board datasheet for exact DO ratings.