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- 8C-PDISA1 51454471-276
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· Product image is representative; revision or series may vary. Contact us to request a specific version.
We provide 1 year warranty for all remaining parts.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online.
If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.
Amikon offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
Technical specifications for 8C-PDISA1 51454471-276
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Product Model8C-PDISA1 51454471-276
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Product ParametersDigital Input Sequence of Event
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Tariff Code8537101190
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Country of originUSA
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Place of shipmentXiamen, China
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In stock1 unit
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Estimated Shipping Size6x15.2x14.3cm
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ManufacturerHoneywell
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Weight0.3 kg
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Input Channels32
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Voltage Rating24 VDC
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DI Power Voltage Range18 to 30 VDC
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Module current rating95 mA
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Galvanic Isolation1000 VAC RMS or ±1000 VDC
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Input Impedance4.2 KΩ
Description
The HONEYWELL 8C-PDISA1 is a Digital Input Sequence of Events (DISOE) module for the Honeywell Series 8 I/O system, providing 32 channels of 24 VDC discrete input capability with advanced time-tagging functionality. The 8C-PDISA1 accepts 24 VDC discrete signals as discrete inputs, and these inputs can be time-tagged to support 1 ms resolution Sequence of Events recording, enabling precise event chronology capture for process analysis and troubleshooting.
The 8C-PDISA1 supports three distinct modes of operation to accommodate diverse application requirements. In Normal mode, the 8C-PDISA1 performs a 20 ms PV scan for standard discrete input monitoring. In Sequence of Events mode, the 8C-PDISA1 delivers 1 ms resolution SOE time-stamping while maintaining a 20 ms PV scan rate. In Low Latency mode, the 8C-PDISA1 provides a 5 ms PV scan for applications requiring faster input response times. This operational flexibility allows the 8C-PDISA1 to be deployed across a wide range of process control scenarios from standard monitoring to high-speed event capture.
The 8C-PDISA1 supports three distinct modes of operation to accommodate diverse application requirements. In Normal mode, the 8C-PDISA1 performs a 20 ms PV scan for standard discrete input monitoring. In Sequence of Events mode, the 8C-PDISA1 delivers 1 ms resolution SOE time-stamping while maintaining a 20 ms PV scan rate. In Low Latency mode, the 8C-PDISA1 provides a 5 ms PV scan for applications requiring faster input response times. This operational flexibility allows the 8C-PDISA1 to be deployed across a wide range of process control scenarios from standard monitoring to high-speed event capture.
Alternative Names
8C-PDISA1 51454471-Z76
8C-PDISA1 5145447I-276
8C-PDISA1 51454A71-276
8C-PDISA1 5145A471-276
8C-PDISA1 51A54471-276
8C-PDISA1 5I454471-276
8C-PDISAI 51454471-276
8C-PD1SA1 51454471-276
8C-POISA1 51454471-276
8C PDISA1 51454471 276
8C PDISA1 51454471 Z76
8C PDISA1 5145447I 276
8C PDISA1 51454A71 276
8C PDISA1 5I454471 276
8C PDISAI 51454471 276
8C PD1SA1 51454471 276
Information
Overview
Manuals
Target Industrial Applications
Product Applications
Mounting the IOTA Base
Features:
- Normal (20ms PV scan)
- Sequence of Events (1ms resolution SOE,20ms PV scan)
- Low Latency (5ms PV scan)
- Internal or external field power selection
- On board excitation power (no need formarshalling power)
- Direct / Reverse Input Indication
- Galvanic isolation
The 8C-PDISA1 51454471-276 Honeywell Digital Input Sequence of Event may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
Honeywell 8C-PDISA1 51454471-276 Digital Input Sequence of Event Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
The module offers three selectable operating modes to balance speed and functionality. In Normal mode, all 32 channels are scanned at 20 ms intervals for standard process variable (PV) monitoring. In Sequence of Events mode, the module maintains the 20 ms PV scan while simultaneously capturing state transitions with 1 ms SOE resolution—ideal for fault sequence reconstruction. In Low Latency mode, the PV scan accelerates to 5 ms, providing faster response for time-critical control loops while still supporting SOE functionality.
- Oil & Gas:Refining, offshore & pipeline monitoring
- Power Generation:Fossil/nuclear/renewable plant control
- Chemical Processing:Reactive batch & safety-critical containment
- Mining and Metals:Heavy machinery stops, conveyors & kilns
This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Determine Base Selection: Identify your module spacing configuration. Non-redundant applications use the 9-inch 8C-TDILA1 IOTA base, while redundant setups require the 12-inch 8C-TDILB1 base.
Enclosure Attachment: Securely latch the chosen IOTA base directly onto the cabinet's internal DIN rail or mounting plate.
Power & Comm Bus: Connect the standard 24V DC system power bus drop cables and the I/O Link communication lines directly to the passive terminal ports located on the IOTA assembly.
Technical notes
Power flexibility is a key design feature of the 8C-PDISA1. The module provides internal or external field power selection, with on-board excitation power that eliminates the need for extra power supplies to power field devices and the associated craft-wired marshalling. The 8C-PDISA1 features galvanic isolation between the system and field sides, ensuring electrical separation and protection of control electronics. Additionally, the 8C-PDISA1 supports Direct/Reverse Input Indication, allowing configuration of input signal polarity interpretation to match field wiring requirements.
FAQs
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What is 8C-PDISA1 51454471-276?
+The Honeywell 8C-PDISA1 is a 32-channel, 24 VDC Digital Input Sequence of Events (SOE) module -
What is the primary purpose of the 8C-PDISA1?
+It is primarily used in control rooms to sequence trip events and record millisecond-accurate logs of system changes. This level of precision is essential for turbine control systems and critical safety applications. -
What type of IOTA does the module use?
+In Honeywell's Series 8 setup, discrete modules like the 8C-PDISA1 typically reside on a 9-inch (228 mm) IOTA for non-redundant applications and a 12-inch (304 mm) IOTA for redundant applications. -
Does it support Hot-Swapping?
+Yes. The module utilizes the Series 8 IOM/IOTA form factor which natively supports insertion and removal under power (RIUP). You can replace a faulty hardware module without powering down the entire chassis or interrupting unrelated field processes
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