Details
The DirectLOGIC 405 Series (DL405) from AutomationDirect is a modular, powerful, and cost-effective PLC system, ideal for medium to large-scale industrial automation applications. It offers the widest variety of I/O modules and configurations among all DirectLOGIC PLC families.
Product Highlights
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Two types of CPUs available:
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D4-454 (AC-powered)
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D4-454DC-1 (DC-powered)
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Modular system with support for up to 8-slot configurations
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Maximum I/O capacity of 2,048 points
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Program memory: 31.5K / Data memory: 15.3K
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Four communication ports for flexible integration
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Supports up to 16 built-in PID control loops (expandable to 96 with modules)
Key Features
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AC/DC discrete input/output modules, up to 64 points per module
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Relay output options up to 10 amps
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12-bit and 16-bit analog input/output modules
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Thermocouple and RTD input modules
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Serial and Ethernet communication modules
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High-speed counter and PID control modules
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Remote I/O master and slave modules (serial and Ethernet)
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Expandable with local base extension units and cables
Model Number Highlights
CPU Modules
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D4-454: 31.5K memory, 1,024 I/O points, 15.3K data register, AC-powered
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D4-454DC-1: Same specs as D4-454 but DC-powered
Base Units
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D4-04B-1: 4 slots
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D4-06B-1: 6 slots
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D4-08B-1: 8 slots
Base Expansion
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D4-EX (AC) / D4-EXDC (DC): Requires base expansion cable (D4-EXCBL-1 or D4-EXCBL-2)
Input Modules
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D4-08ND3S: 8 pts, 24–48 VDC sync/source
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D4-16ND2 / D4-16ND2F: 16 pts, 12–24 VDC source
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D4-32ND3-1: 32 pts, 24 VDC sync/source
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D4-64ND2: 64 pts, 20–28 VDC source
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D4-08NA: 8 pts, 100–200 VAC
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D4-16NA: 16 pts, 100 VAC
Output Modules
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DC output: F4-08TD1S, D4-16TD1, D4-16TD2, D4-32TD1, D4-32TD2, D4-64TD1
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AC output: D4-08TA, D4-16TA
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Relay output: D4-08TR, F4-08TRS-1, F4-08TRS-2, D4-16TR
Analog Input Modules
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F4-04AD, F4-04ADS: 4-channel voltage/current
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F4-08AD: 8-channel voltage/current
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F4-16AD-1 / -2: 16-channel current or voltage
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F4-08THM: Thermocouple input
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F4-08RTD: RTD input
Analog Output Modules
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F4-04DA-1 / -2: 4-channel current/voltage
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F4-08DA-1 / -2: 8-channel current/voltage
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F4-16DA-1 / -2: 16-channel current/voltage
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F4-04DAS-1 / -2: 4-channel source-type output
Special Modules
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D4-RM: Serial remote I/O master
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D4-RS / D4-RSDC: Remote I/O slaves
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H4-ERM100: Ethernet remote master
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H4-ECOM100: Ethernet communication
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D4-DCM: Serial communication
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F4-16PID: PID coprocessor
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F4-4LTC: 4-loop temperature controller
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H4-CTRIO: High-speed counter I/O
Accessories and Cables
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D4-FILL: Dummy slot cover
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PC-DSOFT5: PC-based programming software
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FA-ISOCON: RS232 to RS422/RS485 converter
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Assorted cables: S-15CNJ, S-9CNS1, S-15CNP1, S-25CNP1, Z-20JP
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D3-D4-BAT: Memory backup battery
Discontinued Models
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Many older modules and parts now replaced with newer equivalents such as D4-454 and D4-454DC-1
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Refer to model transition notes for compatible upgrades
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