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POS-123-P-PFN
7.4 IO Description
The relative demand values are set in a range up to 0x3FFF (16383 for 100%). Position values have a resolu-
tion of 0.001 mm.
For the control and status bits “1” means activation respective activity. Error bits are dis-
played inverted because a “0” reports an active error.
The module is controlled with two control words consisting of following bits
ENABLE
General
activation of the system linked with the hardware enable. The output stage
is activated, the current position is adopted as the target position.
START
Activation of the position controller. The transmitted position value is taken over as
command position and the position is approached.
HAND:A
Open loop manual movement. If START is not active the axis is driven with the be-
low HAND:A programmed speed.
HAND:B
Open loop manual movement. If START is not active the axis is driven with the be-
low HAND:B programmed speed.
DIRECT
In direct mode new command positions are taken over directly from the controller
while START signal is available. No new rising edge of START is needed.
PARAREAD
Reads out the value of the parameter which is determined by PARA ADDRESS and
returns this value in PARA VALUE of the data sent to the fieldbus. If the address is
not valid the function will return
„0xffffffff“.
READLLIM
PARAREAD returns the lower limit for the selected parameter instead of the value.
This function is primarily used for the automatic initialisation of a PLC parameterisa-
tion module.
READULIM
ditto, but output of the lower range limit.
PARAMODE
Enables the ability to set parameters.
PARA VALID
Parameter value is transmitted at the rising edge of this control bit.
LIVEBIT IN
Monitoring of the fieldbus communication: If this bit gets activated
in the “ready”-
state of the module, an internal watchdog function will be activated. In the further
course it is monitored if there is a data change at least once per second. If there is a
period longer tha
n 1s without data change, the “ready”-state of the module will be
deactivated.
Further data words to the module:
COMMAND POSITION
Target Position for standard positioning process
DEMAND SPEED
Nominal respectively limit speed for movement
COMMAND POSITION 2
End position for positioning process if two profile segments are used
DEMAND SPEED 2
Nominal/limit speed for movement in the second profile segment
(Entering this value activates the second profile segment)
PARAMETER ADDRESS
Address of the parameter which should be changed or read out
PARAMETER VALUE
Value of the parameter to be transmitted
Содержание POS-123-P-PFN
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