D4G0206 Relay Module
Graphical schematic-programmed micro PLC module with 6 inputs and 4 relay/transistor outputs, no ladder logic required.
🔍 Click to enlarge · 1/10Technical Specifications
| Type | Multi-functional intelligent programmable delay module (micro PLC), graphical schematic programming |
|---|---|
| Supply voltage | 11-24V DC, reverse-polarity protected, max 28V |
| Operating current | <=250mA running, <=35mA standby |
| Digital/analog inputs | 6 channels, 0-35V DC, non-isolated from supply |
| Outputs | 4 channels, relay or transistor (model dependent) |
| Relay output | Potential-free, 0-30V DC or 0-220V AC, max 8A |
| Transistor output | Sinking, 12-48V DC only (no AC), max 8A |
| Communication | B/A terminals, RS-485/TTL selectable |
| Operating temperature | -20C to 60C |
| Storage temperature | -40C to 80C |
| Isolated input (tested) | 1500V DC |
| Isolated output (tested) | 1000V DC |
| ESD (IEC61000-4-2) | 4kV, normal operation on all input terminals and power |
| EFT (IEC61000-4-4) | 2kV at 5kHz, normal operation; 4kV without damage (wireless/RTC options may briefly malfunction) |
| Creepage distance (IEC60950-2L/2N) | >=6mm, pollution degree 3, basic insulation from relay terminals to logic side |
| Clearance (IEC60950-2H) | >=2mm, pollution degree 3, basic insulation from relay terminals to logic side |
| EMC standard | IEC61000-6-1-2006, light-industrial and commercial environments |
| Dimensions (L x W x H) | 72mm x 88mm x 59mm |
Overview
The D4G0206 is a micro PLC-style programmable delay module that replaces stacks of fixed-function time relays and hard-wired relay logic panels. Instead of ladder logic, it is programmed by drawing a schematic in host-computer software, so engineers without PLC training can build timing, counting and interlock logic and load it onto a compact industrial module.
It provides 6 non-isolated digital/analog inputs (0-35V DC) and 4 relay or transistor outputs rated up to 8A each, communicates over RS-485 or TTL (selectable) for Modbus networking, and runs from an 11-24V DC reverse-protected supply (max 28V) drawing no more than 250mA running and 35mA standby.
Features & Benefits
Draw the logic, don't write it - no ladder, no C, no PLC course
The control sequence is drawn as a schematic in the host-PC software and downloaded over the B/A terminals. There is no ladder logic and no C code, so an electrician who can read a flowchart is productive on day one instead of after a week of PLC training. When the process changes you redraw the diagram and re-download - the panel wiring never moves.
6 in / 4 out in 72 x 88 x 59mm - one part replaces a row of time relays
Six 0-35V DC input channels and four outputs sit in a housing the size of your palm. Each output can run its own delay, timing, counting or interlock, and channels can be linked together, so a job that used to need four or five separate time-delay relays plus the interlock wiring between them collapses into one part - fewer terminals, fewer wires, fewer failure points, one line on the BOM.
8A per channel drives the contactor directly - no interposing relay
Each potential-free contact carries up to 8A at 0-30V DC or 0-220V AC, enough to switch an AC contactor coil, a solenoid valve or a beacon straight from the module. Logic modules in this size class usually stop at signal-level contacts and force you to buy and wire an interposing relay for every output; here that whole intermediate stage disappears from the panel.
Analog goes straight in - the AI card comes off the bill
Any of the six channels accepts an analog voltage as well as a dry contact, so a temperature/humidity transmitter, a pressure transmitter or a raw battery voltage wires directly to A0-A5 and is compared against a threshold inside the module. No separate analog input card, no extra rail space, and up to 35V of headroom on the signal.
Relay or transistor output on the same logic platform
Order the relay version for AC contactors, solenoid valves and mixed AC/DC loads (potential-free, 0-30V DC or 0-220V AC, 8A), or the transistor version for DC-only loads that switch frequently (sinking, 12-48V DC, 8A). The programming, the terminals and the schematic you already drew stay the same - only the output device changes, so one platform covers a whole machine range.
Three layers of power protection sized for real field wiring
The 11-24V DC input (max 28V) is guarded by a reverse-polarity diode, a transient-suppression diode and a self-resetting fuse. Cross plus and minus at commissioning and nothing burns; a surge on the line is clamped rather than passed through; an overcurrent event clears itself with no fuse to find and replace. Standby draw is only 35mA, which suits battery- and solar-backed cabinets.
Branded relays with a dedicated snubber - the contacts survive the arc
The output stage uses genuine branded relays with a purpose-fitted absorption component that kills the contact spark. Measured on the bench, the output rides out the 400Vp-p induced spike that appears the instant a contactor drops out - the event that quietly erodes contacts and shortens the life of cheaper modules. Longer contact life means fewer service calls on machines you have already shipped.
RS-485 / TTL edge node, with RTC and wireless as order-time options
The B/A terminals give RS-485 or TTL (selectable) for Modbus, so the module reports to a host PLC, an HMI touch panel or a gateway while still running its logic locally - the machine keeps working if the network drops. Add the RTC option and it runs to a time-of-day schedule (fixed start/stop, off-peak windows); add the wireless remote option and you get cable-free local control, which is what retrofit jobs usually need.
Applications
Models & Ordering Information
D4G0206 Series
How to Select
- Choose the D4G0206 over a fixed-function time-delay relay when the application needs more than a single on-delay/off-delay behavior; it is a freely programmable logic platform, not a single fixed timer.
- Choose the D4G0206 over a plain relay module when the application needs logic between input and output, not just a direct pass-through or simple trigger.
- For 6-input/4-output applications, the D4G0206 is smaller, lower cost and easier to program than a full-size PLC, while still offering RS-485 networking as a distributed I/O node.
- Add the RTC option if the application needs scheduled operation, such as fixed start/stop times or time-segmented control.
- Add the wireless remote option if the application needs cable-free local or remote operation.
- Use the standard configuration (digital input + relay output + RS-485) for wired logic control with no scheduling or remote-control requirement.
- Select relay output for AC contactors, solenoid valves and mixed AC/DC loads; select transistor output for DC-only loads that need high-frequency switching.
📘 Need the full method? NPN vs PNP Sensor Outputs Explained
When NOT to specify the D4G0206 — and what to use instead
Fixed plug-and-play delay/timer behavior is wanted with no programming step
Why not: The D4G0206 has no default timing behavior out of the box - the control sequence must be drawn as a schematic in host-computer software and downloaded before first use.
Use instead: E4J0101 or B2J0601 (fixed-function delay/timer relay, ready to use without programming)
More than 6 inputs or 4 outputs are needed on a single board
Why not: The D4G0206 is fixed at 6 digital/analog inputs and 4 relay/transistor outputs; there is no larger-I/O version of this module.
Use instead: a full-size PLC, or multiple D4G0206 units networked over its RS-485/TTL port
The application needs hard real-time or safety-rated logic (e-stop, guard interlock, SIL/PL-rated stop function)
Why not: The D4G0206 carries no safety rating (no Type/SIL/PL); it is a general-purpose schematic-programmed micro PLC, not a certified safety controller, and its outputs are not OSSDs.
Use instead: DA31 Emergency-Stop Safety Relay Module or DQSRN Safety Relay Module - never use the D4G0206 in a machine safety function
No PC or configuration software is available on site to set or view parameters
Why not: All D4G0206 logic is authored in host-computer software and downloaded over the B/A terminals; the base module has no digit display or keypad for stand-alone on-device programming.
Use instead: E4J0101 / E4J0102 / E4J0103 (on-board digit-tube display and keys for standalone field setup)
Only a single simple on-delay or off-delay timing function is required
Why not: Drawing and downloading a schematic for one basic timing function is more setup effort than the job needs; the D4G0206 is built for multi-channel or interlocked logic, not as a single-timer replacement.
Use instead: E4J0101 or B2J0601 (fixed-function delay/timer relay)
Specifications we do not publish yet
We only publish a figure once we are confident it is true. The items below are still being validated through further testing and real-world customer feedback, so for now we would rather leave them open than guess. If one of them matters to your design, ask us for the latest validated status.
- Relay mechanical life / switching-cycle rating (not stated for this model, unlike sibling delay modules)
- MTBF (mean time between failures)
- IP / ingress-protection rating of the bare board or optional enclosure
- Surge immunity (EN61000-4-5) rating - only ESD and EFT figures are currently published
- Accuracy/drift figures for the optional RTC add-on (not published for this model)
- Wireless-remote option: frequency band, range and pairing method
- Terminal wire gauge and screw-torque specification
- Formal certification status and certificate number
Frequently Asked Questions
What is the D4G0206 micro PLC module?
How do I program the D4G0206 without PLC training?
What is the difference between the relay output and transistor output versions?
Does the D4G0206 support RS-485 and Modbus communication?
Can the D4G0206 run on a schedule or be triggered remotely?
How rugged is the D4G0206 against electrical disturbance?
Is the D4G0206 certified to international safety standards?
Works Well Together
On the same machine or line, D4G0206 is typically ordered together with: Proximity Sensors · Photoelectric Sensors · Laser Distance Sensors
D6.5 Series Inductive Proximity Sensors (Ultra-Short 18mm / Y-Type / 35mm / 45mm)
6.5mm-diameter inductive proximity sensors for tight-clearance mounting where M8 sensors won't fit.
BGS-CX441 / BGS-CX442 Background Suppression Photoelectric Sensor
Wire-adjustable BGS sensor with 2 mm or 15 mm spot, 10-300 mm range, published black/white differential distance.
DDA-Y & DDB-Y Industrial Laser Distance Sensor (Phase-Shift)
Phase-shift laser distance sensors: 0.2-100 m range, millimeter accuracy, RS485 Modbus RTU, switching or analog output.
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