Modifying a SLC RIO Network February 21, 2019 Tim Kraynik Contents Agenda History of the SLC Family & Local IO Overview of SLC Remote IO and Terminology 1747-SN & ASB Adapters Modifying a SLC RIO Network INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 2 The SLC Family • Introduced in the early to mid 1990’s • Brick/Fixed Style along with modular models which required chassis, power supply and IO modules • SLC5/03, SLC5/04 and SLC5/05 still available today – Active Mature • Strong Commitment to keep around into the next decade INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 3 SLC Local I/O INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 4 Remote I/O INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 5 Remote I/O Protocols • SLC controllers can support remote I/O over the following protocols: • DeviceNet • ControlNet • Remote I/O • There are many I/O devices that support Remote I/O protocol including: • 1746/1747 SLC • PLC5/1771 • 1794 Flex • 1791 Block I/O • As well as many Encompass and 3rd party Suppliers INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 6 1747-AENTR INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 7 Remote I/O • Originally designed for Discrete Data transfer (single Word 16 bits) • Discrete implementation is easier to implement • Needed a way address specialty modules: • Analog In/Out, Thermocouple, RTD, High speed Counter etc… • Block Transfer Method developed to handle I/O modules that required multiple words of data transfer INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 8 Block Transfer Code INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 9 BTR BTW Instructions • • • • • • Introduced in 2000 Required processor firmware update (C/4) as well as RSLogix500 (4.10) Block Transfer could now be done with 1 rung of code Could be used along with older style code Firmware kits still available for SLC5/03, SLC5/04 and SLC5/05 Make sure BT data is not referenced multiple times in a program INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 10 SLC Local I/O Configuration • IO configuration needs to match 100% or processor will fault • Most discrete modules consume either 1 input or 1 output word • Non Discrete modules can use 2-32 words (both input and output) • Modules that support multiple Class configs only support Class 1 over Remote IO • 1747-SN uses 32 Input and 32 Output words INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 11 SLC Remote IO Configuration • There are no IO modules configured in regards to RIO • Only need to configure • The starting modules Logical Rack number • The total number of modules to communicate with (Module Image Size) INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 12 SLC M Files • Additional Memory added into the SN module • 1747-BAS, 1746-HSC, 1747-SDN and 1747-SN support M Files • 1747-SN supports 3,300 M File Input and 3,300 Output words • 1747-SN uses the M files in chunks of 100 words for Block Transfers • 1747-SN is limited to 32 block transfers INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 13 Existing RIO System INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 14 Checklist for modifying RIO System • Identify/Locate all of the existing hardware • Identify if the system status • Document all of the dip switch settings • Identify each hardware’s Logical Address and Starting Group • Make a backup copy of the user program including snapshot of G File • Identify each hardware’s Logical Address and Starting Group • Confirm there is an open spot for new hardware – not just physically • Make changes to Dip Switches and G –File Configuration • Download any program changes • Confirm that the 1747-SN Comms LED is solid green. INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 15 Determining RIO System Status INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 16 Document RIO System • Record all of the dip switches on SN and all Adapters! Take pictures of each modules settings. INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 17 1747-SN Dip Switches • There are only 2 dipswitches on the 1747-SN • They are used to configure the baud rate INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 18 1747-ASB Dip Switches • There are 3 banks of 8 dip switches on the 1747-ASB INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 19 1747-ASB Switch Bank 1 • Logical Rack # • 0-3 • Starting Group # • 0, 2, 4, 6 INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 20 1747-ASB Switch Bank 2 • Baud Rate • 57.6k • 115k • 230k • Module Image Size • 2 – 32 • How many slots to enable • Complimentary • Hopefully at 0 • Reserved • NEEDS TO BE SET TO ON INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 21 1747-ASB Switch Bank 3 • Specialty Mode • Enable or Disable Block Transfers • Keying • Save • Check • Addressing Mode • Single Slot • ½ Slot • 2 Slot INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 22 Addressing Mode • 16 point Discrete IO • 8 point Discrete IO • 32 point Discrete IO INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 23 Document/Backup RIO System • Save a backup copy of the RSLogix500 program prior to making any changes! • Print screen a shot of the 1747-SN G File configuration • Double click on IO Configuration in RSLogix500 • Double Click on the 1747-SN module • Click on Edit G Data INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 24 G File Configuration • • • • • • • • • • • • G File defines what the SN module will communicate with Each Remote Device requires Logical Rack and Group # A Logic Rack (Full) is a term used to define 8 modules/groups 1747-ASB can be configured for more than 8 modules More then one Logical Rack needs to be configured SLC 1747-SN can support up to 4 Logical Racks (0-3) 4 Full Logical Racks would look to comm to 32 modules Grouping is configured in even pairs 1/2 modules are configured as ¼ rack 3/4 modules are configured as a ½ rack 5/6 modules are configured as ¾ rack 7/8 modules are configured as a full rack INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 25 Systems Config INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 26 Systems Config with G File Colored INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 27 Program Addressing INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 28 Discrete Addressing • Input – I:1.12/00-15 • I for Input • 1 for the Slot # of the SN module • 12 for the group position of the module • 00-15 for the individual bit on the module • Output – O:1.12/00-15 • O for Output • 1 for the Slot # of the SN module • 12 for the group position of the module • 00-15 for the individual bit on the module INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 29 BTR BTW Instructions INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 30 BTR BTW Execution Examples INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 31 Configuring Specialty Modules INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 32 Knowledgebase Help • 23925 - Quick Start Remote I/O • 18461 - Examples of Block Transfers using the SLC BTW and BTR Instructions • 17814 - Block Transfer to 1746-NI8 Analog Input Card INTERNAL | Copyright ©2019 Rockwell Automation, Inc. 33 Questions? 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