Command specification, Scope – ElmoMC SimplIQ Digital Servo Drives-Bell Command Reference User Manual

Page 10

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1.1. Command

Specification

Commands for

SimplIQ for Steppers

drives may be specified from the following

sources:

User program

A program loaded to the servo drive via one of the
communication options. After program execution begins, the
program is managed by the drive.

RS-232

Serial, point-to-point, short-range communication. Although this
method is rather slow, RS-232 is very easy to use and the
requirements are minimal: a standard PC with a serial port and
ASCII terminal software.

CANopen

Serial, multi-drop, medium speed and medium-range
communication. This type of communication requires special-
purpose host hardware and software.

This manual describes the

SimplIQ for Steppers

commands that can be specified from

each of these sources. Most of the commands are equally available for all three
sources. Certain commands, however, are limited in scope according to the type of
program or communication.

All the commands are available to CAN communication in text form through the OS
service objects 0x1023 and 0x1024. In addition, the numerical set/get commands are
available to CAN users in short PDO form, called the “binary interpreter.” The binary
and the OS SCAN interpreters are described fully in the CANopen Implementation Guide.

CANopen may also be used to manipulate the drive using the object dictionary (OD)
method, which is the native CAN method. This manual does not cover OD manipulations
with CANopen; refer to the “Object Dictionary” section of the CANopen Implementation
Guide
for full explanations.

The

SimplIQ for Steppers

drive responds to many privileged commands — such as

those used by the Composer setup wizard — that are not documented in this manual.

1.2. Scope

This manual includes the complete list of commands used by

SimplIQ for Steppers

servo

drives.

It specifies how to use each command, along with added remarks and examples.

The first part of this manual describes the communicated commands and their response.

The second part describes the user program and its control logic.

The commands are presented in two ways:

A task-related listing
Alphabetically

SimplIQ for Steppers Command Reference Manual

Introduction

MAN-STECR (Ver. 1.1)

2

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