PCC-IV Instruction Manual (Rev. 0.1)
Page 6-50
Section 6
– Blockware Functions
Technical Reference
F126 [DOUT] Discrete Output (Open Collector - Sinking)
Function
DOUT
is the Blockware interface to the PCC-IV
’s 24 Vdc Open Collector Discrete Output hardware.
DOUT
interfaces to Discrete Outputs on the CPU board and on option boards. Parameter 1 specifies the board location
(the CPU board = board 0). Parameter 2 selects a specific Discrete Output channel on the specified board.
Invert Input: By default, a "1" Input energizes the Discrete Output and changes the Output to a "1". If Parameter 3
is changed to a "1
”, a "0" Input Energizes the Discrete Output and the Block Output.
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NAME: DOUT SINGLE USE FUNCTION: N OUTPUT TYPE: D
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Input Type Description Notes
_____________________________________________________________________________________________
1 D INPUT BLOCK 1
Parameter Description Default Max Min Code Notes
_____________________________________________________________________________________________
1 OPTION BOARD (0=CPU BOARD) 0 2 0 3
2 OUTPUT CHANNEL 1 4 1 3
3 INVERT INPUT? 0=NO 1=YES 0 1 0 2 1
Notes:
1. See "Invert Input" above. By default, Relay energizes when Input = "1"
F127 [NOP] No Operation Dummy Function
Function
NOP
does not do anything.
NOP
is the default function that is placed in all Blocks when memory is erased.
A
NOP
Block is not a valid Input to any other Block, and if used as an Input would cause a "Type Mismatch" error
that would prevent the programmer from writing Blockware to the PCC-IV.
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NAME: NOP SINGLE USE FUNCTION: N OUTPUT TYPE: D
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No Inputs and No Parameters
