CFG_IA: ImaginaryAxis
(Original Document)
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Function Description
This function block configures an ImaginaryAxis.
Additional parameters EN and ENO may be configured.
FBD Representation
Representation:
LD Representation
Representation:
IL Representation
Representation 
CAL CFG_IA_Instance (S:=CFG_IA1, R:=Reset, IA_ID:=IA1,
    VEL_UNIT:=MMF_RPM, GEAR_NM:=1, GEAR_DN:=65536,
    POS_LIM:=100000, NEG_LIM:=-100000, VEL_LIM:=3000,
    MFB:=MFB, CFG_BLK:=IA_CFG_BLK, ERROR=>CFG_ERROR)
ST Representation
Representation 
CFG_IA_Instance (S:=CFG_IA1, R:=Reset, IA_ID:=IA1,
    VEL_UNIT:=MMF_RPM, GEAR_NM:=1, GEAR_DN:=65536,
    POS_LIM:=100000, NEG_LIM:=-100000, VEL_LIM:=3000,
    MFB:=MFB, CFG_BLK:=IA_CFG_BLK, ERROR=>CFG_ERROR) ;
Parameter Description
Description of input parameters:
Parameter
Data Type
Meaning
S
BOOL
Rising input starts configuration.
R
BOOL
Resets block and prevents configuration. It halts configuration at the end of the current step.
IA_ID
INT
Axis ID for ImaginaryAxis to be configured.
VEL_UNIT
UDINT
Velocity units for this axis.
GEAR_NM
REAL
Number of axis units.
GEAR_DN
REAL
Number of drive units.
POS_LIM
REAL
Positive position limit (this is optional).
NEG_LIM
REAL
Negative position limit (this is optional).
VEL_LIM
REAL
Velocity limit (this is optional).
ACC_DEF
REAL
Default acceleration (this is optional).
DEC_DEF
REAL
Default deceleration (this is optional).
Description of in-/output parameters:
Parameter
Data Type
Meaning
MFB
MMFBlock
Must be connected to the MMFStart block of 200 registers.
CFG_BLK
AXCfg
Data block where the ImaginaryAxis configuration data will be stored.
Description of output parameters:
Parameter
Data Type
Meaning
Q
BOOL
True when the configuration has completed (reset by R).
ERROR
INT
First error code that is generated during configuration.
Example
When CFG_IA1 turns on, the configuration of IA1 occurs. The parameters assigned to the input pins are moved into the PLC register block IA_CFG_BLK, that is assigned at output pin CFG_BLK. For detailed information on the size and layout of this register data block, refer to the AXCfg Data Structure. The values placed in GEAR_NM and GEAR_DN represent the axis and drive units. In this example, the VEL_UNIT input pin is configured as RPM so the axis units are revolutions. The ImaginaryAxis drive units are set up as counts, 65536 counts per revolution. This function block configuration sets up the gear ratio to be 65536 counts of motor rotation, which equals one revolution of position change.
Runtime Errors
For a list of all error codes and values of the block, refer to Tables of Error Codes for the Motion Library.