User mode switch function block truth table, User mode switch function block error handling – Rockwell Automation 1752-L24BBBE SmartGuard 600 Controllers User Manual User Manual
Page 235
Rockwell Automation Publication 1752-UM001E-EN-P - June 2014
235
Function Blocks Command Reference
Appendix D
User Mode Switch Function Block Fault Present Output Setting
The Fault Present output can also be used in programming. To enable this
output, check the Use Fault Present checkbox on the In/Out Settings tab of the
Function Block Properties dialog box.
User Mode Switch Function Block Truth Table
In the truth table, 0 is off and 1 is on.
User Mode Switch Function Block Error Handling
Use this table to diagnose and reset a discrepancy error condition in the User
Mode Switch function block.
Table 24 - Truth Table for User Mode Switch Function Block
Inputs
Outputs
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
Table 25 - Error Detection and Reset for User Mode Switch Function Block
Error Condition
Status When an Error Occurs
To Reset the Error Condition
Output
Fault
Present
More than 1 input was on for
more than 2 seconds.
(1)
(1) If more than 1 input is on at the same time, the corresponding output of the first input to turn on will turn on for 2 seconds.
Off
(Safety State)
On
Correct the system so that only one
contact is on.
All inputs were off for more than
2 seconds.