Industrial Automation Tech Note 12 - TNIA12

Abstract:

This document describes how to map Crimson tags to RSLogix 5/500-based processors and
Programmable Logic Controllers (PLCs).

Products:

Red Lion Controls CR1000 Human Machine Interface (HMI), CR3000 HMI, DA Series Data Station, Data Station Plus (DSP), G3 HMI, G3 Kadet HMI, Graphite® Controller, Graphite HMI, Modular Controller, and ProducTVity Station™

Problem Solved: Mapping Tags to RSLogix 5/500‐Based Processors

One difference between the majority of data types available for programming processors is the way that bit addressing is displayed. RSLogix 5/500-based processors/PLCs often use a “/” to signify a bit within a word or long; Crimson uses a “.” to signify a bit within a word or long. Additionally, all RSLogix 5/500-based processors transfer data in increments of 16-bit words. To map a tag to a bit within a word or long, first map the tag to the word or long, set the Treat As parameter to Bit Array Little-Endian, and then choose the desired bit from the Bit Number drop-down selection. Refer to section 2.B in the Crimson 3.0 Quick Start Guide for further instructions on accessing bits within words. Refer to the RSLogix 5 section for RSLogix 5‐specific information.

Required Software:

Crimson® 2.0, 3.0, or 3.1

Required Operating System:

Microsoft Windows 2000, or above

Introduction

This document describes how to map Crimson tags to RSLogix 5/500-based processors for the types of data files listed in Table 1.

Table 1.

Automatically Creating Crimson Tags from RSLogix CSV File

Exporting a CSV File from RSLogix

Click Tools-Database-ASCII Export, as shown in Figure 1.

Figure 1.

Click the CSV tab.

As shown in Figure 2, check (only) the Addr/Symbol Desc. option.

Figure 2.

Click OK and choose a location to save the file.

Click OK on the Export Results window.

Importing and Creating Tags in Crimson

Navigate to the Communications section.

Click on the device.

As shown in Figure 3, click the Create Data Tags link in the Editing Pane.

Figure 3.

Chose a Folder Name.

Referring to Figure 4, choose to define Tag Names, or the Tag Labels (by default the tag labels will match the tag name).

Choose what will define the tag name, items without the defined selection will default to the Data File and Offset option.

Figure 4.

Click OK.

Select the file that was exported from RSLogix.

Click Open.

Click OK.

Navigate to the Data Tags section to view the tags that were created.

Manually Creating and Mapping Tags in Crimson

RSLogix 500

All of the information provided in this section applies to RSLogix 500-based processors/devices. All information, except for the descriptions of Input and Output Data types, also applies to RSLogix 5-based processors/devices.

Binary

RSLogix 500

Binary Data File addresses may be shown in one of two formats:
1. B(File):Element/Bit
2. B(File)/Bit.

Crimson

Crimson’s mapping is similar to option 1 listed above. The Binary Data Files are transferred a word at a time, in order to access individual bits, a flag tag is required.

Counter

RSLogix 500

Counter Data File addresses are shown in the following format:
· C(File):Element
· Counters are broken down into 8 pieces:
· CU
· CD
· DN
· OV
· UN
· UA
· PRE
· ACC.
· The item selected in Figure 5 is displayed as C5:0/CU in RSLogix 500.

Figure 5.

Crimson

Crimson mappings are slightly different than RSLogix 500 and use the following format:
•C(File):Element, this is the same as RSLogix 500
•Counters are broken down into 3 pieces:
•0 – STAT Status word
•1 – PRS Counter Preset
•2 – ACC Counter Accumulated Value.
•To map a tag to the count up enable bit above (C5:0/CU in RSLogix 500) in Crimson, you would map a Flag tag to C005:0000 0 - STAT. Set the Treat As: parameter to Bit Array Little-Endian and choose Bit 15 for the Bit Number parameter, as shown in Figure 6.

NOTE: Bit numbers explanations are available via the RSLogix 500 Instruction Set Help function.

Figure 6.

Floating Point

RSLogix 500

Floating Point Data File addresses are in the following format:
•F(File):Element, ex. F8:3

Crimson

Crimson mappings are similar, but with leading 0s; F008:0003, for example.

Input

RSLogix 500

Input Point Data File addresses are in the following format:

•I:(Slot).Word/Bit
•I is for Input
•Slot is the backplane location of the input module
•Word is which word of the card contains the data.

NOTE: RSLogix 500 uses a “/” to signify a bit within a word or long.

•The item highlighted in Figure 7 is displayed as I:1.0/0 in RSLogix 500.

Figure 7.

Crimson

Crimson mappings are slightly different than RSLogix 500 and use the following format:

•I(Slot):Word.Bit
•I is for Input
•Slot is the backplane location of the input module
•Word is which word of the card contains the data.

NOTE: Crimson uses a “.” to signify a bit within a word or long.

To map a tag to the input above (I:1.0/0 in RSLogix 500) in Crimson, you would map a tag to I001:0000. Then, set the Treat As parameter to Bit Array Little-Endian and choose Bit 0 for the Bit Number parameter as shown in Figure 8.

Figure 8.

Long

RSLogix 500

Long Data File addresses are in the following format:

•L(File):Element, ex. L9:7

Crimson

Crimson mappings are similar, but with leading 0s; L009:0007, for example.

Integer

RSLogix 500

Integer Data File addresses are in the following format:

•N(File):Element, ex. N7:0

Crimson

Crimson mappings are similar, but with leading 0s; N007:0000, for example.

Output

RSLogix 500

Output Point Data File addresses are in the following format:

•O:(Slot):Word/Bit
•O is for Output
•Slot is the backplane location of the input module
•Word is which word of the card contains the data.

NOTE: RSLogix 500 uses a “/” to signify a bit within a word or long.

The item highlighted in Figure 9 is displayed as O:9.2 in RSLogix 500.

Figure 9.

Crimson

Crimson’s mapping is slightly different than RSLogix 500 and uses the following format:

•O(Slot):Word.Bit
•O is for Output
•Slot is the backplane location of the input module
•Word is which word of the card contains the data.

NOTE: Crimson uses a “.” to signify a bit within a word or long.

To map a tag to the output above (O:9.2 in RSLogix 500) in Crimson, you would map a tag to O009:0002 as shown in Figure 10.

Figure 10.

String

RSLogix 500

String Point Data File addresses are in the following format:

•ST(File):Element ex. ST10:0
•Strings are broken down into 2 pieces
•LEN
•String Text.

Crimson

Crimson only has a single character space available, so strings are referred to as R registers in Crimson; the File and Element values also have leading zeros; ex. R010:0000, for example.

After mapping the Crimson tag to the String register, the Length parameter MUST be set to 80 characters, as shown in Figure 11.

Figure 11.

Status

RSLogix 500

Status Data File addresses are in the following format:

•S:Element, ex. S:42 (Clock Calendar Seconds)

Crimson

Crimson mappings are similar, but with leading 0s; S:0042, for example.

Timer

RSLogix 500

Timer Data File addresses are in the following format:

•T(File):Element ex. T4:0
•Timers are broken down into 6 pieces:
•EN
•TT
•DN
•BASE
•PRE
•ACC.

The item highlighted in Figure 12 displayed as T4:0/TT in RSLogix 500.

Figure 12.

Crimson

Crimson’s mapping is slightly different than RSLogix 500, using the following format:

•T(File):Element, this is the same as RSLogix 500
•Timers are broken down into 3 pieces:

•0 – STAT Status word
•1 – PRS Timer Preset
•2 – ACC Timer Accumulated Value. To map a tag to the count up enable bit above (T4:0/TT in RSLogix 500) in Crimson you would map a Flag tag to T004:0000 0 - STAT. Set the Treat As: parameter to Bit Array LittleEndian and choose Bit 14 for the Bit Number, as shown in Figure 13.

NOTE: Bit numbers explanations are available via the RSLogix 500 Instruction Set Help function.

Figure 13.

RSLogix 5

Previously described mapping, with the exception of the Input and Output data types, holds true for PLC 5 devices. The information in this section applies to RSLogix 5-based processors/devices, only.

RSLogix 5

Input and Output Point Data File addresses are in the following format:

•O:Word/Bit
•O is for Output
•Word is in OCTAL

NOTE: RSLogix 5 uses a “/” to signify a bit within a word or long.

The item highlighted in Figure 14 is displayed as O:103 in RSLogix 5:

Figure 14.

Crimson

Crimson’s mapping is slightly different than RSLogix 5, it uses the following format:

•O(Slot):Word.Bit
•O is for Output
•Word is which word of the card contains the data, in DECIMAL

NOTE: Crimson uses a “.” to signify a bit within a word or long.

To map a tag to the previous output (O:103 in RSLogix 5) in Crimson, you would map a tag to O00:0067.

 

Disclaimer

It is the customer's responsibility to review the advice provided herein and its applicability to the system. Red Lion makes no representation about specific knowledge of the customer's system or the specific performance of the system. Red Lion is not responsible for any damage to equipment or connected systems. The use of this document is at your own risk. Red Lion standard product warranty applies.

Red Lion Technical Support

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