User Manual

Rockwell Automation Publication 1752-UM001E-EN-P - June 2014 255
Function Blocks Command Reference Appendix D
Enable Switch Function Block Parameters
Set these parameters for the Enable Switch function block.
The number of inputs can be increased from two to four on the In/Out Settings
tab of the Function Block Properties dialog box in RSNetWorx for DeviceNet
software. There are two inputs even when the input type is set to Single Channel.
The grip input and release input signals can be used when three or four inputs are
set. The default setting is two.
Optional Outputs
Optional outputs may also be used in programming. To enable these optional
outputs, check the output checkboxes on the Out point tab of the Function
Block Properties dialog box.
• Grip enable
• Release enable
• Discrepancy error
Fault Present Output Setting
The Fault Present output can also be used in programming. To enable this
output, check the Fault Present checkbox on the Out point tab of the Function
Block Properties dialog box.
Table 30 - Enable Switch Function Block Parameters
Parameter Valid Range Default Setting
Input Type Single Channel
Dual Channel Equivalent
Dual Channel Equivalent
Discrepancy Time 0…30 s in 10 ms increments.
(1)
The discrepancy time must be equal to or greater than
the cycle time of the controller.
(1) A discrepancy time check is not performed when the discrepancy time is set to 0.
30 ms