Rockwell Automation 1756-OF8H ControlLogix HART Analog I/O Modules - Manual (Page 41)

Rockwell Automation Publication 1756-UM533C-EN-P - February 2011 41
ControlLogix Module Operation Chapter 3
Input Modules in a Local
Chassis When a module resides in the same chassis as the owner-controller, the following
configuration parameters affect how and when the input module multicasts data:
• Real-time sample
• Requested packet interval
Real Time Sample (RTS)
This configurable parameter instructs the module to perform the following
operations:
• Scan all of its input channels and store the data into on-board memory.
• Multicast the updated channel data (as well as other status data) to the
backplane of the local chassis.
IMPORTANT The real time sample value is set during the initial configuration
using RSLogix 5000 software. This value can be adjusted
anytime.
1
2
On-board Memory
Status Data
Channel Data
Channel Data
Channel Data
Channel Data
Channel Data
Channel Data
Ch 0
Ch 1
Ch 2
Ch 3
Ch 4
Ch 5
Timestamp
41361