Siemens Pointek CLS 200 Instruction Manual page 75

Discrete input function block
The figure below shows how measured values are processed within the Discrete input
function block.
Discrete input function block function groups
Simulation
Value;
status
Simulation
Primary Value
from
Transducer
Block
How it works
The Discrete input function block allows you to control modifications to the output value
(PROFIBUS cyclic data):
• Select Inversion ON or OFF: when ON, the Primary Value from the Transducer block,
or a simulation value given by the simulation switch, will be inverted.
• Select Failsafe options: if the status of the Primary Value or Simulation Value is bad,
the fault logic can output either the last usable measured value, or a given
substitute value.
• Select one of 3 settings:
Setting
AUTO
MAN
O/S
• The result is the output parameter (OUT).
7ML19985AR02 Pointek CLS 200 (PROFIBUS PA) – INSTRUCTION MANUAL
Inversion
Enable
1
via
PDM
description
automatic
manual
function block disabled
MAN
Fail
O/S
Safe
Logic
via
AUTO
PDM
Output value
the automatically-recorded measured
value
a manually-set fixed simulation value
the preset safety value.
PROFIBUS
Cyclic Data
OUT
Page IIC–75