Descriptions of module parameters – Rockwell Automation 1746-BLM Blow Molding Module Installation Instructions User Manual
Page 43
Blow-molding Module 43
Publication 1746-IN014B-EN-P - January 2001
Descriptions of module parameters
Module Parameter
Description
axis control structure
64 axis-configuration words that you enter in the M0 file
axis current adc input
raw 14-bit value read from adc (for LVDT position counts)
axis current control output
16-bit integer
axis current dac output
raw 14-bit value written to dac
axis current process variable
16-bit integer representing the position input
axis current profile step
indicates which step of a profile is currently executing
axis current setpoint
indicates axis target position (can be unrelated to the profile)
axis full-scale point
calibrated maximum travel limit of LVDT
axis zero-scale point
calibrated minimum travel limit of LVDT
axis process-variable profile
256 words in M1 file to indicate actual setpoint execution
axis setpoint profile
256 words in M0 file to control parison head or accumulator
axis synchronization input
command trigger to start drop of the parison
axis synchronization output
signal used to synchronize external hardware with a profile step
interpolated setpoint profile
returned master profile filled with module-computed setpoints.
master setpoint profile
selected critical profile setpoints in M0 file. Other setpoints = 0
operation: position-based mode
profile steps triggered by position inputs from LVDT
operation: time-based mode
profile steps triggered by module-computed time intervals
parison weight adjustment
capability to offset entire profile to adjust weight of parison-
profile scale adjustment
capability to change profile scale without changing part weight
setpoint marking
capability to relate a setpoint in the profile to a ridge in the part
shotsize
length of screw backup to inject a full shot of melt
signed-integer format
minimum value of -32768 corresponds to zero-scale (fully-closed or
fully-forward) and the maximum value of +32767 corresponds to full-scale
(fully-open or fully-retracted).