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6 - COMMANDS
It is possible to work in Local or Remote mode.
When switching between Remote and Local modes the origin of the Enable and Start commands is
switched.
In Remote mode the "Commands remote sel" parameter is used to configure the source of the En-
able and Start commands which can be Terminal (standard digital input, expansion digital input) or
Digital (Modbus, Fieldbus).
In Local mode the PAR1002 "Commands local sel" parameter is used to configure the source of the
Enable and Start commands, which can be Terminal (standard digital input, expansion digital input)
or Keypad (Start key, Stop key).
In Remote -> Digital mode the PAR 1018 Digital Enable src must be used to configure the source.
Normally the sources are the Pad parameters. Modbus or Fieldbus must therefore write the desired
value on the Pad parameters. Alternatively, the value of 6000 can be written directly on the Digital En-
able src parameter for a source of Null (0) or the value of 6002 for a source of One (1).
Another alternative is to configure the Digital Enable src source on the PAR 4454 ... 4484 BitX de-
comp mon parameters, so that the Modbus or Fieldbus can then write the desired value on the PAR
4450 Dig word decomp parameter.
Local < > Remote switching is performed with the variable value configured as Loc/Remote src, i.e.
it can be a standard digital input, expansion digital input, Modbus, Fieldbus, Dig Local/Remote.
In the default condition, the associated variable is Dig Local/Remote, which is written by the LOC key
from the keypad: switching is thus performed by pressing the LOC key.
For safety reasons, Local < > Remote switching is only performed with Terminal Enable = 0.
Example 1
With the machine in automatic operating mode, the AFE works in Remote -> Digital -> Fieldbus mode.
With the machine in manual operating mode, the AFE works in Local -> Terminal -> Standard digital
input mode.
If switching from automatic to manual machine operation, the AFE must switch between Remote and
Local mode. The switch command must be sent via standard digital input or fieldbus.
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AFE200 • Instruction Manual
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