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Rockwell Automation Publication 35-UM001A-EN-P - May 2022
107
Chapter 6 Safety Functions
Safe Brake Control Modes
SBC Mode specifies if the SBC functionality is used and how the safety outputs
controlling the brake operate. The mode also changes the instances of the CIP
objects controlling the safety outputs. The module supports the following
modes.
Not Used
In ‘Not Used’ mode, the SBC function is not used by the application. The
associated safety outputs are not under SBC control, and can be configured
independently. The safety outputs are mapped to the following CIP objects:
•
So0: Safety Discrete Output Point Object Instance 1
•
So1: Safety Discrete Output Point Object Instance 2
•
Safety Dual Channel Output Object Instance 1
Used, No Test Pulses
In ‘Used, No Test Pulses’ mode, the associated safety outputs are not pulse
tested. The associated safety outputs are under SBC control and cannot be
configured independently. The safety outputs are mapped to the following CIP
objects:
•
So0: Safety Discrete Output Point Object Instance 3
•
So1: Safety Discrete Output Point Object Instance 4
•
Safety Dual Channel Output Object Instance 2
Used, Test Pulses
In the ‘Used, Test Pulses’ mode, the safety outputs are under SBC control and
cannot be configured independently. The safety outputs are mapped to the
same CIP objects as the ‘Used, No Test Pulses’ mode.
There is no difference in implementation of Safety Outputs pulse testing in
SBC control versus direct control. See
Safety I/O Operation on page 120
for
pulse test behavior.SBC Operation when Activated by Safety Output Assembly.
IMPORTANT
If the Safe Brake Mode is set to ‘Not Used’, then the state of the
two safety outputs So0 and So1 is controlled by the Safety Output
Assembly tags; otherwise, the two Safety Outputs are controlled
by the Safe Brake Function.
IMPORTANT
If the Safe Brake Mode is set to ‘Not Used’, then setting the Safety
Output tag
devicename
:SO.SBCOutput1 = 1 sets the SBC Fault and
sets the SBC Fault Type to ‘Config’.
IMPORTANT
If the Safe Brake Mode is set to ‘Used’, then the Safety Input
Assembly tags associated with safety outputs will be forced to:
devicename
:SI.Out00Monitor = 0
devicename
:SI.Out01Monitor = 0
devicename
:SI.Out00Status = 0
devicename
:SI.Out01Status = 0
devicename
:SI.Out00Ready = 0
devicename
:SI.Out01Ready = 0