ProSoft Technology MVI56-AFC - Manual (Page 172)

MVI56-AFC Backplane Communication MVI56-AFC ♦ ControlLogix Platform
User Manual Liquid and Gas Flow Computer
Page 172 of 316 ProSoft Technology, Inc.
February 25, 2011
11.2.3 Function Block Definition - 1: Wall Clock
Output Function Block ID
Input Function Block ID
Function Block Name: Wall Clock
Function Block ID: 1 decimal, 000001 binary, 1024 dec.
Target: Global
Data Block Length: 6 Elements
Total Block Length: 7 Elements
Description
This block sets the AFC Module Wall Clock. It may be used to synchronize the
AFC Wall Clock to the Controller Wall Clock. The Wall Clock IFB returns the wall
clock as known by the AFC modules.
If the output function block fails to set the clock, bit 0 of the input function block
ID is set. If the input returns a clock that has not been set, bit 1 of the input block
ID is set and the clock value returned is all zeros.
Null: Output Function Block (OFB) Null: Input Function Block (IFB)
Element Attribute Element Attribute
0 Block ID - Function Code & Length 0 Block ID - Function Code & Length
1 Year 1 Year
2 Month 2 Month
3 Day 3 Day
4 Hours 4 Hours
5 Minutes 5 Minutes
6 Seconds 6 Seconds
Note: Refer to Function Block Structure (page 168) for information on Bit 8 and 9 settings.