Keterangan
Description
The Honeywell 8C-PDILA1 (51454471-175) is a 32-channel 24VDC Digital Input module designed for the Honeywell Series 8 I/O family. This module is conformal coated, providing robust protection against moisture, dust, chemicals, and extreme temperatures in demanding industrial environments. It provides high-density input monitoring in a compact form factor, utilizing an Input/Output Termination Assembly (IOTA) for both module mounting and field wiring terminations.
Features
- 32-point digital input capacity for 24VDC signals.
- Conformal coated circuitry for enhanced environmental durability.
- Supports optional redundancy when paired with a second IOM on a compatible IOTA, requiring no external cabling or control devices.
- Extensive internal diagnostics for continuous data integrity monitoring.
- Galvanic isolation (System to Field) when using external user-supplied power.
- Compact design with integrated heat management for high-density cabinet layouts.
Applications
- Oil Refining & Petrochemicals: Monitoring valves and ESD interlocks in hazardous zones.
- Power Generation: Tracking breaker status, utility status, and generator states.
- Chemical Manufacturing: Monitoring pipeline states and batch process limits.
- Water & Wastewater Treatment: Interface for pump, tank, and flow contact sensors.
Technical Specifications
| Parameter |
Specification |
| Model Number |
8C-PDILA1 (51454471-175) |
| Input Channels |
32 |
| Voltage Rating |
24 VDC |
| Input Voltage Range |
18 to 30 VDC |
| Input Impedance |
4.2 KΩ |
| ON Sense Threshold |
13 VDC (min) / 3 mA (min) |
| OFF Sense Threshold |
5 VDC (max) / 1.2 mA (max) |
| Galvanic Isolation |
1000 VAC RMS or ±1500 VDC (System) |
| Current Rating |
95 mA |
| Field Wire Capacity |
Up to 12 AWG / 2.5 mm² |
Installation Guidelines
-
ESD Precautions: Always use an anti-static wrist strap when handling the module to prevent damage to sensitive electronic components.
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Mounting: The module must be seated onto a compatible IOTA (e.g., 8C-TDILA1 for non-redundant or 8C-TDILB1 for redundant applications). Align the module pins with the IOTA sockets and press firmly until the latches engage.
-
Wiring: The module uses two-level detachable terminals. Ensure field wiring is properly landed and secured. The module is designed for vertical mounting to facilitate top or bottom cabinet cable entry.
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Powering: Field power is supplied through the IOTA. Ensure the external power source is within the 18-30 VDC range.
-
Safety: Always power down the system before inserting or removing the IOM from the IOTA to prevent electrical arcing or data corruption.
FAQ
What is the difference between the 8C-PDILA1 and the 8C-TDILA1?
The 8C-PDILA1 is the active electronic I/O module, while the 8C-TDILA1 is the passive Input/Output Termination Assembly (IOTA) that provides the physical base for mounting and field wiring connections.
Does this module provide field power?
No, the module requires an external, user-supplied 24V DC power source for field excitation, which is routed through the IOTA.
Is this module redundant?
The module supports optional redundancy. Redundancy is achieved by installing a second IOM onto a compatible redundant-capable IOTA, requiring no external redundancy control hardware.
