Rockwell Automation Allen-Bradley Logix 5000 Series

Chapter 5
PCCC Commands
82 Rockwell Automation Publication 1756-PM020F-EN-P - January 2019
• Unprotected Read
• Protected Write
• Unprotected Write
• Protected Bit Write
• Unprotected Bit Write
• PLC-5 Communication Commands on page 85
• Read Modify Write
• Read Modify Write N
• Typed Read
• Typed Write
• Word Range Read
• Word Range Write
• Bit Write
• SLC Communication Commands on page 90
• SLC Protected Typed Logical Read with 3 Address Fields
• SLC Protected Typed Logical Write with 3 Address Fields
• SLC Protected Typed Logical Read with 2 Address Fields
• SLC Protected Typed Logical Write with 2 Address Fields
See also
PCCC Commands on page 81
This topic describes the initial fields present in all PCCC commands. These
fields are followed by command-specific fields
The name of each command is listed in this format:
C
ommand Name (CMD=xx,yy; FNC=zz), where:
• xx= CMD code in the Request
• yy= CMD code in the Reply
• zz = Function code
Initial Fields of All PCCC
Commands