Comtrol IO-Link Master EIP-4 - Manual (Page 103)

IO-Link Master EtherNet/IP Reference Manual: 2000589 Rev. A Chapter 7. SLC/PLC-5/MicroLogix Interface - 103
Chapter 7. SLC/PLC-5/MicroLogix Interface
The IO-Link Master provides support for the SLC, PLC-5 and MicroLogix PLCs. The following features are
supported:
• Rx PDI data, both Polling and Write-to-File modes.
• Tx PDO data, both PLC-Writes and Read-From-File modes.
• PCCC based messages transferred by means of the PCCC CIP object, including:
- SLC Typed Read Message
- SLC Typed Write Message
- PLC-5 Typed Read Message (Logical ASCII address format)
- PLC-5 Typed Write Message (Logical ASCII address format)
• Receive, transmit and statistics data.
• Standard PLC-5/SLC file naming conventions.
• Controlled message rate to the PLC when operating in the Write-to-File receive method. This is
accomplished by setting the Maximum PLC Update Rate.
The primary differences between the PLC-5/SLC interface and the ControlLogix interfaces are:
• Since the PLC-5 and SLC PLCs operate on a file memory system, the PLC-5/SLC interface provides
Write-to-File and Read-from-File communication methods in place of Write-to-Tag and Read-from-Tag
communication methods. The Write-to-File methods operate in a very similar manner to the Write-to-Tag
method available for the ControlLogix family of PLCs.
• Polling is performed through the PLC-5/SLC specific messages instead of accessing the Serial Port Data
Transfer object.
• When configuring the IO-Link Master to operate in Write-to-File or Read-from-File, enter the file name
starting with an N (i.e. N10:0).
Note: While ControlLogix PLCs support the SLC and PLC-5 messages, using those messages on ControlLogix
PLCs is not recommended due to data size and performance considerations.
7.1. Requirements
Your PLC-5/SLC/MicroLogix PLC must support:
• MultipHop
• ControlLogix devices
• EtherNet/IP
The following tables list PLCs that support EtherNet/IP and the required firmware version for each PLC.
Note: Older versions of the PLC firmware may or may not provide EtherNet/IP functionality. You must verify
that an older version of the PLC firmware provides EtherNet/IP functionality before you can use it with
IO-Link Master.
If you need to update your PLC firmware, contact your Rockwell distributor.