CNC Bender v10-20070702

REVISION Information

10-20070707, July 2, 2007

NEW: LiteControl GUI Update

The LiteControl now features the same updated GUI as the ProControl. It also requires the the higher screen resolution of 1024 x 768. (The older 800 x 600 is too low for the new software.)

NEW: Servo Module Programmable Switch Logic is now Controllable

The I2T Servo Module is used on CNC Bender systems have a feature called "Programmable Limit Switch". A programmable limit switch is controlled by two positions along or around an axis. The first position is the LOW and the second position is the HIGH. The low and high values are floating point values. There are eight programmable limit switches per servo axis. The first use of this feature is the Tube-Support Up/Down setting. See the Tube-Support Location section for an example and details for how to use the programmable limit switch values.

NEW: Tube Support Location is now Programmable

The tube-support up/down location relative to the Feed axis can now be changed at the CNC Bender operator station. It is changed in the InitAxes Processlist in the Low Level menu. Every time the axes are initialized, CNC Bender sets this value. It can be changed by adjusting the COMDEF line: FeedAxisPLS5 = LSL0:0, LSU0:1500

The LSL parameter is reserved for the Limit Switch Lower value. This is where the output for the tube support switches to active. The appropriate value is usually a Feed axis value of 0 units (millimeters). The LSU parameter is reserved for the Limit Switch Upper value. The appropriate value is the position to control at which forward feed position the tube support begins to drop. The value is always indicated in millimeters. Floating point values are allowed. The integer value after the LSL or LSU indicates the index position of the CIO inside the COMDEF. In this case, the index is 0, which is the first position in the list of CIO objects.

The CIO object is a SERVO MODULE COMMAND. The Modbus OpCode for setting programmable limit switches is 2013 for the first axis in a card, and 2014 for the second axis in a card. See the CIO library's "FeedAxisPLS5" CIO object to see how to setup a new CIO that an address any programmable limit switch. The first word value controls which output to address:

Word 1 value...
- is 0 to set output 1
- is 1 to set output 2
- is 2 to set output 3
- is 3 to set output 4
- is 4 to set output 5
- is 5 to set output 6
- is 6 to set output 7
- is 7 to set output 8

Words 2 and 3 are set aside for the low value. The LSL parameter stuffs values into these two words in a process list line. Words 4 and 5 are set aside for the high value The LSU parameter stuffs values into these two words in a process list line.

The programmable limit switch values can be monitored using the I2T Module Interface software. Use the Programmable Limit Switches feature.