8C-TDOD51 Honeywell 32-Channel 24VDC Discrete Output Module
Manufacturer: Honeywell
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Part Number: 8C-TDOD51 51306975-175
Condition：New with Original Package
Product Type: Digital Output Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Honeywell 8C-TDOD51 Series 8 Module
Configured for high-density discrete output execution in Experion PKS platforms, the Honeywell 8C-TDOD51 (8C-TDOD51 Discrete Output IOTA Module) provides direct physical/electrical execution for 32 isolated digital output channels. The hardware controls field devices including solenoids, relays, and indicators via point-to-point sourcing connections while maintaining electrical isolation from the control backplane.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 8C-TDOD51 |
| Brand | Honeywell |
| Origin | USA |
| Weight | 0.24 kg |
| Dimensions | 12 cm x 14.5 cm x 6.5 cm |
| Operating Temp | -40 deg C to +85 deg C |
| Power Consumption | 24 VDC, ~150 mA consumption |
| Number of Channels | 32 channels |
| Output Type | Digital (24 VDC, sourcing) |
| Voltage Range | 18-30 V DC |
| Max Current per Channel | 0.5 A |
| Max Current per Module | 16 A |
| Response Time | <=1 ms (ON to OFF, OFF to ON) |
| Isolation | 2500 Vrms channel-to-backplane galvanic isolation |
| Redundancy | 1:1 hardware redundancy with seamless switchover |
Process Control & DCS Instrumentation
The 8C-TDOD51 incorporates integrated channel-to-channel isolation parameters alongside robust loop monitoring architectures. To prevent signal interference across dense terminal environments, the module utilizes a 2500 Vrms galvanic isolation boundary separating the field-side electrical circuits from the primary Series 8 backplane logic. The sourcing outputs maintain real-time diagnostics for loop integrity, tracking output open states, over-range faults, and under-range conditions to prevent uncommanded system shutdowns.
Frequently Asked Questions
Q: Does the 8C-TDOD51 support online module replacement during active process operations?
A: Yes, the hardware supports 1:1 redundant configurations allowing full hot-swap operation. An individual module can be removed and replaced without disrupting signal status or process execution on the parallel redundant loop.
Q: What are the internal power considerations when executing full-load sourcing across all 32 channels?
A: The module logic consumes approximately 150 mA at 24 VDC. However, total module current capacity scales up to 16 A based on field loads, requiring external power distribution sized to handle the maximum 0.5 A per channel sourcing limit.
Field Installation Guidelines
- Ensure the Series 8 I/O rack slot is clear of debris and that the alignment keys match the module form factor prior to insertion.
- Maintain physical separation between low-voltage DC signaling loops and high-voltage AC power lines within the enclosure wire ways to limit electromagnetic interference.
- Secure all terminal block retention screws to prevent contact resistance variations under high ambient vibration conditions.
- Verify the presence and integrity of the external 24 VDC power supply source before activating the channel outputs.