Omron TJ2-MC64 - PROGRAMMING User Manual

Trajexia system
PROGRAMMING MANUAL 13
Revision 1.0
2.3.4 Mathematical specifications
Number format
The TJ2-MC64 has two main formats for numeric values: double precision
floating point and double precision integer.
The double precision floating point format is internally a 64 bit value. It has
an 11 bit exponent field, a sign bit and a 52 bit fraction field. Floating point
numbers have a valid range of ±2.2×10
−308
to ±1.8×10
308
.
Integers are essentially floating point numbers with a zero exponent. This
implies that the integers are 53 bits wide. The integer range is therefore
given from -9,007,199,254,740,992 to 9,007,199,254,740,991. Numeric
values outside this range will be floating point.
Hexadecimal format
The TJ2-MC64 supports assigning and printing hexadecimal values. A
hexadecimal number is input by prefixing the number with the $ character.
Valid range is from 0x0 to 0xFFFFFFFFFFFFF. Example:
>> VR(0)=$FF
>> PRINT VR(0)
255.0000
A value can be printed in hexadecimal by using the HEX function. Negative
values result in the 2’s complement hexadecimal value (53-bit). Valid range
is from −xxx to xxx. Example:
>> TABLE(0,-10,65536)
>> PRINT HEX(TABLE(0)),HEX(TABLE(1))
1FFFFFFFFFFFF6 10000
Positioning
For positioning, the TJ2-MC64 will round up if the fractional encoder edge
distance calculated exceeds 0.9. Otherwise the fractional value will be
rounded down. The internal measured position and demanded position of
the axes, represented by the MPOS and DPOS axis parameters, have xxx-
bit counters.
Floating point comparison
The comparison function considers a small difference between values as
equal to avoid unexpected comparison results. Therefore any two values for
which the difference is less than <EXOO>1.19×10
−6
are considered equal.
Precedence
The precedence of the operators is given below:
1. Unary minus, NOT
2. ^
3. / *
4. MOD
5. + -
6. = <> > >= <= <
7. AND OR XOR
8. Left to right
The best way to ensure the precedence of various operators is through the
use of parentheses.
WARNING
All mathematical calculations are done in floating point format. This
implies that for calculations of/with larger values the results may
have limited accuracy. The user should be aware of this when
developing the motion control application.

Omron TJ2-MC64 - PROGRAMMING Specifications

General

Manufacturer	Omron
Category	Controller
Number of Axes	64
Power Supply Voltage	24 VDC
Humidity	10 to 90% RH (non-condensing)
Model	TJ2-MC64
Series	TJ2
Communication Interface	USB, RS-232

Summary

About this manual

Functions supported by unit versions

Safety warnings and precautions

Intended audience

Defines the target personnel for this manual, focusing on those with electrical systems knowledge.

Safety precautions

Highlights critical safety measures to prevent electrical shock and damage during operation.

Operating environment precautions

Details precautions for operating the unit in various environmental conditions to prevent malfunction.

Application precautions

Covers precautions related to system application, wiring, and power supply to ensure safe operation.

Trajexia system

Introduction

Introduces Trajexia as OMRON's motion platform, highlighting its flexibility, scalability, and core components.

BASIC programming

Explains the structure of the BASIC language for controlling the TJ2-MC64, including commands, functions, and parameters.

Motion execution

Describes how tasks manage motion commands and the role of the motion generator and its buffers.

BASIC commands

Categories

Lists and categorizes all available BASIC commands for quick reference.

All BASIC commands

Provides a comprehensive alphabetical listing and description of all BASIC commands.

Axis commands

Details commands related to controlling and manipulating individual axes.

Axis parameters

Describes parameters that define and monitor the behavior of each axis.

Communication protocols

Available interfaces

Lists the available communication interfaces for the Trajexia system.

Ethernet

Details the Ethernet port configuration and usage for PC connectivity.

Serial protocol

Explains the serial ports and supported protocols like Host Link and ModbusRTU.

DeviceNet

Describes the DeviceNet protocol and its communication setup.

CANopen

Covers the CANopen networking system and communication setup procedures.

Examples and tips

How-to’s

Provides practical guidance and step-by-step instructions for common operations.

Startup program

Explains how to create and set a startup program for system initialization.

Setting the UNITS axis parameter and gear ratio

Details how to set the UNITS parameter for axis conversion and gear ratio.

Origin search

Describes the origin search or homing functionality for axis positioning.

Practical examples

Presents real-world application examples and code snippets.

SHELL programs and Trajexia Studio

Guides on creating and using SHELL programs for application management.

Troubleshooting

Voltage and analysis tools

Covers checks for power supply voltage and using analysis tools for diagnosis.

TJ2-MC64

Details system errors, axis errors, unit errors, and configuration errors for the TJ2-MC64.

System errors

Explains system errors displayed on the TJ2-MC64 LED display and their causes/solutions.

Axis errors

Describes axis errors shown on the TJ2-MC64 LED display, including causes and solutions.

Unit errors

Details unit errors shown on the TJ2-MC64 LED display, including causes and solutions.

TJ1-PRT

Covers system errors and I/O data communication problems for the TJ1-PRT.

System errors

Lists system errors for the TJ1-PRT and their corresponding problems and solutions.

TJ1-DRT

Details system errors and I/O data communication problems for the TJ1-DRT.

System errors

Lists system errors for the TJ1-DRT, including their causes and solutions.

TJ1-CORT

Covers system errors and I/O data communication problems for the TJ1-CORT.

System errors

Lists system errors for the TJ1-CORT, including their causes and solutions.

TJ1-ML__

Details system errors and bus errors related to the TJ1-ML__ unit.

System errors

Lists system errors for the TJ1-ML__, including causes and solutions.

GRT1-ML2

Covers unit power supply, I/O power supply, unit, and SmartSlice I/O errors.

Unit power supply errors

Explains issues related to the GRT1-ML2 unit power supply status.

I/O power supply errors

Details issues related to the external I/O power supply for SmartSlice I/O Units.

Unit errors

Lists unit errors during GRT1-ML2 initialization, including causes and solutions.

SmartSlice I/O errors

Covers errors related to SmartSlice I/O communication and configuration.

GRT1-ML2 timing

Timing concepts

Explains I/O timing issues and concepts like refresh cycles and paging.

Refresh cycles

Details the refresh cycles between TJ2-MC64, GRT1-ML2, and SmartSlice I/O Units.

Examples

Provides examples illustrating I/O timing calculations for SmartSlice I/O Units.

Example 1

Illustrates I/O timing calculations for GRT1-ID4 and GRT1-OD4 SmartSlice units.

Example 2

Shows I/O timing calculations for a more complex setup with multiple SmartSlice units.

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