EasyManua.ls Logo

Eaton ELC-PB User Manual

Eaton ELC-PB
728 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
Question and Answer IconNeed help?

Do you have a question about the Eaton ELC-PB and is the answer not in the manual?

Eaton ELC-PB Specifications

General IconGeneral
Input Voltage24 VDC
Number of Inputs8
Digital Inputs8
Protection ClassIP20
TypeLogic Controller
Analog Inputs0
Analog Outputs0
Communication PortsRS-232
Programming LanguageLadder Diagram (LD)
Operating Temperature55 °C

Summary

Chapter 1 – ELC Concepts

1.1 ELC Scan Method

Explains the ELC scan cycle: reading inputs, evaluating the program, and refreshing outputs.

1.2 Current Flow

Explains how current flows through ladder logic paths and the concept of reverse current.

1.3 NO Contact, NC Contact

Defines normally open (NO) and normally closed (NC) contacts used in ladder logic.

1.4 ELC Registers and Relays

Introduces basic ELC internal devices like X (Input), Y (Output), M (Internal), S (Step), T (Timer), C (Counter), D (Data), E/F (Index) registers.

1.5 Ladder Logic Symbols

Details ladder diagram symbols, their explanations, instructions, and available devices.

1.6 Conversion between Ladder Diagram and Instruction List Mode

Explains the process of converting ladder diagrams to instruction list mode and vice versa.

1.7 Correcting Ladder Diagram

Provides methods for improving ladder logic, simplifying programs, saving memory, and enhancing scan time.

1.8 Basic Program Design Examples

Illustrates common programming functions like latched circuits, SET/RST usage, and conditional control logic.

Chapter 2 – Programming Concepts

2.1 ELC Memory Map for ELC-PB/ELCB-PB controllers

Details the memory map, specifications, and remarks for ELC-PB/ELCB-PB controllers, including I/O, relays, timers, and counters.

2.2 ELC Memory Map for ELC-PC/PA/PH controllers

Details the memory map, specifications, and remarks for ELC-PC/PA/PH controllers, including I/O, relays, timers, and counters.

2.3 ELC Memory Map for ELC-PV controllers

Details the memory map, specifications, and remarks for ELC-PV controllers, including I/O, relays, timers, and counters.

2.4 ELC Memory Map for ELCM-PH/PA controllers

Details the memory map, specifications, and remarks for ELCM-PH/PA controllers, including I/O, relays, timers, and counters.

2.5 ELC Latched Memory Settings

Explains the latched memory settings for PC/PA/PH controllers, detailing general, latched, and special auxiliary relay configurations.

2.6 ELC Latched Memory Modes

Describes the various modes for latched memory (e.g., Power OFF, STOP=>RUN) in ELC controllers.

2.7 ELC Bits, Nibbles, Bytes, Words, etc

Explains the different numeric types (bit, nibble, byte, word, double word) utilized in ELC instructions and their relationships.

2.8 Binary, Octal, Decimal, BCD, Hex

Explains the different numbering systems (BIN, OCT, DEC, BCD, HEX) that ELC controllers can use.

2.9 Special M Relay

Details the functions and compatibility of special M relays across various ELC models for system operations.

2.10 S Relay

Describes S relays and their specific roles in Sequential Function Chart (SFC) programming.

2.11 T (Timer)

Explains timer instructions, their resolution units (ms), counting methods, and how preset values affect output coils.

2.12 C (Counter)

Explains counter instructions, including 16-bit and 32-bit high-speed counters, their types, ranges, and operations.

2.13 High-speed Counters

Details high-speed counter specifications, input configurations, counting modes, and maximum frequencies for various ELC models.

2.14 Special Data Register

Explains special D registers, their functions, and model-specific variations for system data.

2.15 E, F Index Registers

Explains index registers and their function as modifiers for accessing devices and data.

2.16 File Register

Describes file registers and how to access them using MEMR/MEMW instructions or ELCSoft, noting limitations.

2.17 Nest Level Pointer[N], Pointer[P], Interrupt Pointer [I]

Explains pointers used for master control, subroutines (CJ, CALL), and interrupt handling.

2.18 Applications of Special M Relay and Special D Register

Provides examples of using special M relays (operation flags) and D registers for system status and time monitoring.

Chapter 3 – Instruction Set

3.1 Basic Instructions (without API numbers)

Lists basic instructions with mnemonics, operands, execution speed across models, and program steps.

3.2 Basic Instruction Explanations

Provides detailed explanations and program examples for fundamental instructions like LD, LDI, AND, ANI, OR, ORI, ANB, ORB, MPS, MRD, MPP, OUT, SET, RST, MC/MCR, END, NOP, NP, PN.

3.3 Pointers

Explains pointer (P) usage with jump (CJ) and subroutine call (CALL) instructions, including available ranges.

3.4 Interrupt Pointers

Details interrupt pointers (I) used with application commands EI, DI, IRET, and lists interrupt types supported by different models.

3.5 Application Programming Instructions

Introduces instructions like CJ, CMP, and explains operands and their availability across models.

3.6 Numerical List of Instructions

Provides a comprehensive numerical list of instructions, their API numbers, functions, and availability across ELC models.

3.7 Detailed Instruction Explanation

Offers in-depth explanations and examples for instructions such as CJ, CALL, FEND, IRET, EI, DI, and WDT.

Chapter 4 – Sequential Function Chart

4.1 Sequential Function Chart (SFC)

Explains SFC as a graphical method for organizing PLC programs using steps, transitions, and inner ladders.

4.2 Basic Operation

Explains SFC toolbar icons, their descriptions, and how they are used in diagrams (e.g., Common Ladder, Initial Step).

4.3 SFC Viewed as Ladder and Instruction List

Illustrates how SFC code compiles into Instruction List and can be viewed in Ladder, detailing rules for SFC editing.

Appendix A – Communications

A.1 Communication Ports

Describes the communication ports (COM1, COM2, COM3) available on ELC processor modules and their capabilities.

A.2 Configuration of the communication ports

Details configuring communication ports for master/slave operation, transmission modes (ASCII/RTU), and data packet formats.

A.3 Communication Protocol ASCII transmission mode

Explains Modbus ASCII transmission mode, including message frame structure, fields, and ASCII/Hex value conversion tables.

A.4 Communication Protocol RTU transmission mode

Explains Modbus RTU transmission mode, including message frame structure, fields, and CRC checksum calculation.

A.5 ELC Modbus Address mapping

Describes how native ELC data elements (S, X, Y, T, M, C) map to Modbus addresses across different ELC models.

A.6 Function Code support (Slave Mode)

Lists function codes supported in slave mode, such as Read Coil Status, Read Input Status, Read Register, and Force Coils.

A.7 Function Code Support (Master mode)

Lists Modbus function codes supported by ELC when acting as a master device, including MODRD, MODWR, MODRW.

Appendix B – Troubleshooting

B.1 Common Problems and Solutions

Provides a table of common ELC system problems (e.g., LEDs OFF, ERROR LED flashing) and their corresponding troubleshooting and corrective actions.

B.2 Fault code Table (Hex)

Lists detected errors with hexadecimal fault codes, descriptions, and recommended actions for resolving them.

B.3 Error Detection Addresses

Explains error check addresses (M1067, M1068) and error codes (D1067) related to program execution and algorithm errors.

Related product manuals