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Datasheet · LADV-DS-350

CPU 350 datasheet

CPU 350, LADV300 advanced controller: 8 DI, 8 DO, 0 AI, 0 AO, 5 ms fastest scan, ladder and Structured Text.

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LADV300 advanced controller. Order number LV300-C350-16DDT.

DocumentCPU 350 datasheet
CodeLADV-DS-350
Revision1.0, 1 November 2026
FirmwareV1.0.0
Issued byWartens, makers of LADX

Wartens LADV controllers are virtual PLCs that run in a web browser, for learning, for testing logic and for preparing for commissioning. They are not real time, not safety rated, and they cannot control equipment.

Overview

Modular controllers on a virtual backplane. Choose the CPU, slot in digital and analog modules, and size the system to the I/O list, the way a line controller is specified.

Modular CPU, 16 slots, the largest memory in the line.

Technical data

PropertyValue
SeriesLADV300 Advanced
CPUCPU 350
Order numberLV300-C350-16DDT
Variant, as printedDC/DC/DC
Digital inputs8
Digital outputs8
Analog inputs0
Analog outputs0
Expansion slots16, for LADV-DI16, LADV-DO16, LADV-AI8, LADV-AO4
Program memory, ladder8192 tags, 4096 rungs, 128 routines
Program memory, Structured Text8192 variables, 32768 statements, 256 program organisation units
Fastest scan5 ms
Watchdog150 ms per scan
Retentive memoryYes. A warm restart keeps RETAIN variables, and ladder memory
LanguagesLadder (LADX), IEC 61131-3 Structured Text
TasksCyclic and event tasks, priorities from 0, non-preemptive
Online functionsWatch, modify, force I/O, 64-entry diagnostic buffer
Status lampsRUN, STOP, ERROR, MAINT
FirmwareV1.0.0
Serial number, as printedWL26-350-71650
AvailabilityAvailable in the VPLC lab

Addressing

Structured Text names a channel by its IEC 61131-3 direct address. Ladder wires tags to channels in the order the tags are listed.

ChannelsCountStructured Text addresses
Digital inputs8%IX0.0 to %IX0.7
Digital outputs8%QX0.0 to %QX0.7
Analog inputs0none
Analog outputs0none

Channels on modules follow the CPU's own, in slot order: a LADV-DI16 in the first slot after a CPU with 16 digital inputs gives DI16 to DI31, %IX2.0 to %IX3.7.

Status lamps

LampColourMeaning
RUNGreenThe program is executing and outputs are live.
STOPAmberStopped. Outputs are off.
ERRORRedFaulted. Outputs are off until the fault is reset. The diagnostic buffer gives the code.
MAINTAmberAt least one I/O point is forced.

Not included

  • No fieldbus, no network protocols and no physical I/O.
  • No hard real-time guarantee: scans run on simulated time in the browser.
  • No safety rating. Safety functions belong in a safety-rated controller.
  • LADV system manual, LADV-SM
  • Structured Text programming manual, LADV-PM-ST
  • Ladder instruction reference, LADV-IR-LD
  • Diagnostic and fault codes, LADV-DC