Object States; Basic Settings For Controllable Objects; Output Signals Of Controllable Objects - Allen-Bradley Rockwell Automation 857 User Manual

Object States

Each object has the following states:
Table 6.6 – Object States
Setting
Object state

Basic Settings for Controllable Objects

Each controllable object has the following settings:
Table 6.7 – Basic Settings for Controllable Objects
Setting
DI for 'obj open'
None, any digital input,
DI for 'obj close'
virtual input or virtual output
DI for 'obj ready'
Max ctrl pulse length
Completion timeout
Object control
If changing states takes longer than the time defined by "Max ctrl
pulse length" setting, object fails and "Object failure" matrix signal
is set. Also undefined-event is generated. "Completion timeout" is
only used for the ready indication. If "DI for 'obj ready'" is not set,
completion timeout has no meaning.

Output Signals of Controllable Objects

Each controllable object has 2 control signals in matrix:
Table 6.8 – Output Signals of Controllable Objects
Output signal
Object x Open
Object x Close
These signals send control pulse when an object is controlled by
digital input, remote bus, auto-reclose etc.
Control Functions
Value
Undefined (00)
Open
Actual state of the object
Close
Undefined (11)
Value
Open information
Close information
Ready information
Pulse length for open and close
0.02 ... 600 s
commands
0.02 ... 600 s Timeout of ready indication
Open/Close Direct object control
Description
Open control signal for the object
Close control signal for the object
6-7
Description
Description
857-UM001A-EN-P – July 2009