1766 RM001 EN P PDF

Important User Information Solid-state equipment has operational characteristics differing from those of electromechanical equipment. Because of this difference, and also because of the wide variety of uses for solid-state equipment, all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable. In no event will Rockwell Automation, Inc. The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Rockwell Automation, Inc.

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Because of this difference, and also because of the wide variety of uses for solid-state equipment, all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable. In no event will Rockwell Automation, Inc. The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Rockwell Automation, Inc.

No patent liability is assumed by Rockwell Automation, Inc. Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc. WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence. Trademarks not belonging to Rockwell Automation are property of their respective companies.

Summary of Changes. To help you locate new and updated information in this release of the manual, we have included change bars as shown to the right of this paragraph.

The table below lists the sections that document new features and additional or updated information about existing features. Firmware Revision History Features are added to the controllers through firmware upgrades. Firmware upgrades are not required, except to allow you access to the new features. Firmware Upgrades Enhanced features are added to the controllers through a firmware upgrade.

This firmware upgrade is not required, except to allow you access to the latest features and corrected anomalies. The following table illustrates which firmware revision is compatible with the various product series available. Summary of Changes Firmware Revision History.

Preface Who Should Use this Manual. Analog Outputs. Chapter 3 Function Files Overview. Chapter 4 Programming Instructions Instruction Set. LIM - Limit Test. Chapter 10 Math Instructions General Information.

Instruction Operation. Scaling to Engineering Units. Chapter 22 Communications Instructions Messaging Overview. Enable EN. Number and Type of Sockets STI Executing. RTC Seconds. Monitor Active Stations. General Information. Read this preface to familiarize yourself with the rest of the manual.

Who Should Use this Use this manual if you are responsible for designing, installing, programming, or troubleshooting control systems that use MicroLogix controller. Manual You should have a basic understanding of electrical circuitry and familiarity with relay logic.

If you do not, obtain the proper training before using this product. Purpose of this Manual This manual is a reference guide for MicroLogix controller. It describes the procedures you use to program and troubleshoot your controller. Change bars appear in the margin as shown to the right of this paragraph. Related Documentation The following documents contain additional information concerning Rockwell Automation products. To obtain a copy, contact your local Rockwell Automation office or distributor.

Rockwell Automation Before you contact Rockwell Automation for technical assistance, we suggest you review the troubleshooting information contained in this publication first.

This section discusses the various aspects of Input and Output features of the MicroLogix controllers. Standard D-sub connector. AC embedded inputs have fixed input filters. DC embedded inputs have configurable input filters for a number of special functions that can be used in your application. These are: high-speed counting, event input interrupts, and latching inputs. Modules are counted from left to right as shown below. Slot 1. Slot 2 For each input module, the input data file contains the current state of the field input points.

Bit positions 0…7 correspond to input terminals 0…7. Bit Position Word. Bit positions 0…15 correspond to input terminals 0… Bit Position. For each output module, the output data file contains the controller-directed state of the discrete output points. Bit positions 0…5 correspond to output terminals 0…5.

Bit positions 0…7 correspond to output terminals 0…7. Bit positions 0…15 correspond to output terminals 0… The following table shows the data ranges for 0…10V dc and 4…20 mA. For each input module, slot x, words 0 and 1 contain the analog values of the inputs.

The input data file for each configuration is shown below. This bit is set when an error over- or under-range exists for that channel, or there is a general module hardware error. These bits can be used in the control program for error detection. For each module, slot x, words 0 and 1 contain the channel output data.

For each module, slot x, words 0 and 1 contain the analog values of the inputs. The input data file for either configuration is shown below. These bits are set when the input signal is above the user-specified range. The module continues to convert data to the maximum full range value during an over-range condition. The bits reset when the over-range condition clears. These bits are set when the input signal is below the user-specified range.

The module continues to convert data to the maximum full range value during an under-range condition. The bits reset when the under-range condition clears. For each module, slot x, words 0 and 1 contain the analog output module status data for use in the control program. These bits are set when an error over- or under-range exists for that channel, or there is a general module hardware error.

These bits indicate an input signal above the user range and can be used in the control program for error detection. The module continues to convert analog data to the maximum full range value while these bits are set 1. The bits is reset 0 when the error clears. These bits indicate an input signal below the user range. They can be used in the control program for error detection. The module continues to convert analog data to the minimum full range value while these bits are set 1.

The bits are reset 0 when the error clears. For each module, slot x, words 0…3 contain the channel output data. Words 0…3 contain the analog output data for channels 0…3, respectively. If bit 15 equals one, the module sets the output value to 0V or 0 mA. If bit 15 equals zero and bit 14 equals one, the module sets the output value to For each module, slot x, words 0…3 contain the analog values of the inputs.

These bits are set 1 when an error over- or under-range, open-circuit or input data not valid condition exists for that channel, or there is a general module hardware error. An input data not valid condition is determined by the user program.

Short-circuit detection for RTD inputs only. Short-circuit detection for resistance inputs is not indicated because 0 is a valid number. Under-range detection for direct resistance inputs is not indicated because 0 is a valid number. The input data file is shown below. This bit is set 1 when an error over-range, under-range, open-circuit, or input data not valid exists for that channel.

Word delimiter. Required only if a word number is necessary as noted below. When an input is forced, the value in the input data file is set to a user-defined state. When an input is forced, it no longer reflects the state of the physical input or the input LCD indicator.

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