Saturday, June 30, 2012

---( ) Output Coil


---(   )  Output Coil
Symbol 
<address>
---(    )

Parameter       Data Type      Memory Area        Description
<address>          BOOL       I, Q, M, L, D         Assigned bit

Description 
---(   ) (Output Coil) works like a coil in a relay logic diagram. If there is power flow to the coil
(RLO = 1), the bit at location <address> is set to "1". If there is no power flow to the coil (RLO = 0),
the bit at location <address> is set to "0". An output coil can only be placed at the right end of a ladder
rung. Multiple output elements (max. 16) are possible (see example). A negated output can be created
by using the ---|NOT|--- (invert power flow) element.
MCR (Master Control Relay) dependency
MCR dependency is activated only if an output coil is placed inside an active MCR zone. Within an
activated MCR zone, if the MCR is on and there is power flow to an output coil; the addressed bit is
set to the current status of power flow. If the MCR is off, a logic "0" is written to the specified address
regardless of power flow status.
Status word
           BR  CC 1  CC 0  OV  OS  OR  STA  RLO  /FC
writes:   -       -        -       -     -     0     X     -       0


The signal state of output Q4.0 is "1" if one of the following conditions exists:
The signal state is "1" at inputs I0.0 and I0.1
Or the signal state is "0" at input I0.2.
The signal state of output Q4.1 is "1" if one of the following conditions exists:
The signal state is "1" at inputs I0.0 and I0.1
Or the signal state is "0" at input I0.2 and "1" at input I0.3

If the example rungs are within an activated MCR zone:
When MCR is on, Q4.0 and Q4.1 are set according to power flow status as described above.
When MCR is off (=0), Q4.0 and Q4.1 are reset to 0 regardless of power flow. !--RELATED-POSTS-STARTS-->

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