Publication 1752-UM001A-EN-P - October 2006
162 Function Blocks Command Reference
active. The Output Enable turns off if the inputs become inactive or if
an error is detected for the function block.
The Discrepancy Error output can be used when programming the
ESTOP function block. To display this optional output, check the
Discrepancy Error checkbox on the Out point tab of the Function
Block Properties dialog in the Logic Editor of RSNetWorx for
DeviceNet software.
A Fault Present output can also be used in programming. To enable
this optional output, check the Fault Present checkbox on the Out
point tab of the Function Block Properties dialog.
ESTOP Function Block Parameters
Set these parameters for the ESTOP function block.
ESTOP Function Block Truth Tables
In the truth table, 0 is off and 1 is on.
IMPORTANT
A manual reset function is required for emergency stop
applications. When using the Emergency Stop Pushbutton
function block, you must also use the Reset function block.
ESTOP Function Block Parameters
Parameter Valid Range Default Setting
Input Type Single Channel,
Dual Channel Equivalent
Dual Channel Complementary
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
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