Allen-Bradley DL105 PLC CPU Specifications and Operation

This document introduces the CPU hardware functions of DL105 Micro PLC, including the internal structure of CPU, I/O response time, CPU scan time, etc.

Brand: Allen-Bradley
Category: Industrial Robot
Document type: User Manual
Language: English
Pages: 32
File format: PDF
File size: 2.2 MB
Published: 18 October, 2023
Updated: 18 October, 2023
MD5 checksum: 6C4BE88DE7819CE3FCABAEB607666D75
PDF: Allen-Bradley DL105 PLC CPU Specifications and Operation PDF

About this manual

This document provides the specifications and operational details for the Central Processing Unit (CPU) of the Allen-Bradley DL105 Micro PLC. It covers the CPU's memory capacity, scan times, supported programming styles, and built-in communication capabilities.

What's inside

Introduction
CPU Specifications
CPU Hardware Setup
I/O Response Time
CPU Scan Time Considerations
PLC Numbering Systems
Memory Map
CPU Modes
Connecting the Programming Devices

Specifications

Total Program memory	2.4K words
Ladder memory	2048 words
Contact execution time	3.3 μs
Typical scan time	4 to 6 ms
Control relays	256
Timers	64
Counters	64
Communication baud rate	9600 Baud

Frequently asked questions

What are the two possible operating modes for the DL105?

The two possible operating modes are RUN, which executes the program, and PROGRAM, which allows program changes.

Does the DL105 CPU have an external switch to change modes?

No, the DL105 Micro PLC does not have an external switch; you must use a programming device to change the operating mode.

What is the fixed station address for the built-in communication port?

The built-in RS-232C communication port has a fixed station address of 1.

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