superfluous parameter mystery

latheoperator@125cnc:~/linuxcnc$ halrun halcmd: loadrt hostmot2 Note: Using POSIX realtime hm2: loading Mesa HostMot2 driver version 0.15 halcmd: loadrt hm2_eth board_ip="10.100.10.100" config="firmware=hm2/7i80hd16/5xST_3xENC_2xSS_6xSV.BIT num_encoders=12 num_pwmgens=6 num_stepgens=0 sserial_port_0=00000000" hm2_eth: loading Mesa AnyIO HostMot2 ethernet driver version 0.2 hm2_eth: 10.100.10.100: Hardware address: 00:60:1b:11:00:92 hm2_eth: discovered 7I80HD-16 hm2/hm2_7i80.0: Smart Serial Firmware Version 43 Board hm2_7i80.0.7i84.0.0 Hardware Mode 0 = standard Board hm2_7i80.0.7i84.0.0 Software Mode 0 = input_output Board hm2_7i80.0.7i84.0.0 Software Mode 1 = io_analog_fieldvoltage Board hm2_7i80.0.7i84.0.0 Software Mode 2 = io_encoder_analog Board hm2_7i80.0.7i73.0.1 Hardware Mode 0 = nokeyboardnodisplay Board hm2_7i80.0.7i73.0.1 Software Mode 0 = inputoutputencoder Board hm2_7i80.0.7i73.0.1 Software Mode 1 = inputoutputencoderanalog Board hm2_7i80.0.7i73.0.1 Software Mode 2 = inputoutputencoderanalog Board hm2_7i80.0.7i73.0.1 Hardware Mode 1 = nokeyboarddisplay Board hm2_7i80.0.7i73.0.1 Software Mode 0 = inputoutputencoderdisplay Board hm2_7i80.0.7i73.0.1 Software Mode 1 = inputoutputencoderanalogdisplay Board hm2_7i80.0.7i73.0.1 Software Mode 2 = inputoutputencoderanalogwidedisplay Board hm2_7i80.0.7i73.0.1 Hardware Mode 2 = keyboard4by8nodisplay Board hm2_7i80.0.7i73.0.1 Software Mode 0 = inputoutputencoderkeycode4by8 Board hm2_7i80.0.7i73.0.1 Software Mode 1 = inputoutputencoderanalogkeycode4by8 Board hm2_7i80.0.7i73.0.1 Software Mode 2 = inputoutputencoderanalogkeycode4by8 Board hm2_7i80.0.7i73.0.1 Hardware Mode 3 = keyboard4by8display Board hm2_7i80.0.7i73.0.1 Software Mode 0 = inputoutputencoderdisplaykeycode4by8 Board hm2_7i80.0.7i73.0.1 Software Mode 1 = inputoutputencoderanalogdisplaykeycode4by8 Board hm2_7i80.0.7i73.0.1 Software Mode 2 = inputoutputencoderanalogwidedisplaykeycode4by8 Board hm2_7i80.0.7i73.0.1 Hardware Mode 4 = keyboard8by8nodisplay Board hm2_7i80.0.7i73.0.1 Software Mode 0 = inputoutputencoderkeycode8by8 Board hm2_7i80.0.7i73.0.1 Software Mode 1 = inputoutputencoderanalogkeycode8by8 Board hm2_7i80.0.7i73.0.1 Software Mode 2 = inputoutputencoderanalogkeycode8by8 Board hm2_7i80.0.7i73.0.1 Hardware Mode 5 = keyboard8by8display Board hm2_7i80.0.7i73.0.1 Software Mode 0 = inputoutputencoderdisplaykeycode8by8 Board hm2_7i80.0.7i73.0.1 Software Mode 1 = inputoutputencoderanalogdisplaykeycode8by8 Board hm2_7i80.0.7i73.0.1 Software Mode 2 = inputoutputencoderanalogwidedisplaykeycode8by8 hm2/hm2_7i80.0: 72 I/O Pins used: hm2/hm2_7i80.0: IO Pin 000 (P1-01): PWMGen #0, pin Not-Enable (Output) hm2/hm2_7i80.0: IO Pin 001 (P1-03): Muxed Encoder #0, pin Muxed A (Input) hm2/hm2_7i80.0: IO Pin 002 (P1-05): Muxed Encoder #0, pin Muxed B (Input) hm2/hm2_7i80.0: IO Pin 003 (P1-07): Muxed Encoder #0, pin Muxed Index (Input) hm2/hm2_7i80.0: IO Pin 004 (P1-09): Muxed Encoder #1, pin Muxed A (Input) hm2/hm2_7i80.0: IO Pin 005 (P1-11): Muxed Encoder #1, pin Muxed B (Input) hm2/hm2_7i80.0: IO Pin 006 (P1-13): Muxed Encoder #1, pin Muxed Index (Input) hm2/hm2_7i80.0: IO Pin 007 (P1-15): Muxed Encoder #2, pin Muxed A (Input) hm2/hm2_7i80.0: IO Pin 008 (P1-17): Muxed Encoder #2, pin Muxed B (Input) hm2/hm2_7i80.0: IO Pin 009 (P1-19): Muxed Encoder #2, pin Muxed Index (Input) hm2/hm2_7i80.0: IO Pin 010 (P1-21): Muxed Encoder Select #0, pin Mux Select 0 (Output) hm2/hm2_7i80.0: IO Pin 011 (P1-23): PWMGen #0, pin Out0 (PWM or Up) (Output) hm2/hm2_7i80.0: IO Pin 012 (P1-25): PWMGen #0, pin Out1 (Dir or Down) (Output) hm2/hm2_7i80.0: IO Pin 013 (P1-27): PWMGen #1, pin Out0 (PWM or Up) (Output) hm2/hm2_7i80.0: IO Pin 014 (P1-29): PWMGen #1, pin Out1 (Dir or Down) (Output) hm2/hm2_7i80.0: IO Pin 015 (P1-31): PWMGen #2, pin Out0 (PWM or Up) (Output) hm2/hm2_7i80.0: IO Pin 016 (P1-33): PWMGen #2, pin Out1 (Dir or Down) (Output) hm2/hm2_7i80.0: IO Pin 017 (P1-35): PWMGen #3, pin Out0 (PWM or Up) (Output) hm2/hm2_7i80.0: IO Pin 018 (P1-37): PWMGen #3, pin Out1 (Dir or Down) (Output) hm2/hm2_7i80.0: IO Pin 019 (P1-39): PWMGen #4, pin Out0 (PWM or Up) (Output) hm2/hm2_7i80.0: IO Pin 020 (P1-41): PWMGen #4, pin Out1 (Dir or Down) (Output) hm2/hm2_7i80.0: IO Pin 021 (P1-43): PWMGen #5, pin Out0 (PWM or Up) (Output) hm2/hm2_7i80.0: IO Pin 022 (P1-45): PWMGen #5, pin Out1 (Dir or Down) (Output) hm2/hm2_7i80.0: IO Pin 023 (P1-47): PWMGen #0, pin Not-Enable (Output) hm2/hm2_7i80.0: IO Pin 024 (P2-01): IOPort hm2/hm2_7i80.0: IO Pin 025 (P2-03): IOPort hm2/hm2_7i80.0: IO Pin 026 (P2-05): IOPort hm2/hm2_7i80.0: IO Pin 027 (P2-07): IOPort hm2/hm2_7i80.0: IO Pin 028 (P2-09): Smart Serial Interface #0, pin RxData0 (Input) hm2/hm2_7i80.0: IO Pin 029 (P2-11): Muxed Encoder #4, pin Muxed A (Input) hm2/hm2_7i80.0: IO Pin 030 (P2-13): Smart Serial Interface #0, pin RxData1 (Input) hm2/hm2_7i80.0: IO Pin 031 (P2-15): Muxed Encoder #4, pin Muxed B (Input) hm2/hm2_7i80.0: IO Pin 032 (P2-17): IOPort hm2/hm2_7i80.0: IO Pin 033 (P2-19): Muxed Encoder #4, pin Muxed Index (Input) hm2/hm2_7i80.0: IO Pin 034 (P2-21): Muxed Encoder #3, pin Muxed A (Input) hm2/hm2_7i80.0: IO Pin 035 (P2-23): Muxed Encoder #5, pin Muxed A (Input) hm2/hm2_7i80.0: IO Pin 036 (P2-25): Muxed Encoder #3, pin Muxed B (Input) hm2/hm2_7i80.0: IO Pin 037 (P2-27): Muxed Encoder #5, pin Muxed B (Input) hm2/hm2_7i80.0: IO Pin 038 (P2-29): Muxed Encoder #3, pin Muxed Index (Input) hm2/hm2_7i80.0: IO Pin 039 (P2-31): Muxed Encoder #5, pin Muxed Index (Input) hm2/hm2_7i80.0: IO Pin 040 (P2-33): IOPort hm2/hm2_7i80.0: IO Pin 041 (P2-35): IOPort hm2/hm2_7i80.0: IO Pin 042 (P2-37): IOPort hm2/hm2_7i80.0: IO Pin 043 (P2-39): IOPort hm2/hm2_7i80.0: IO Pin 044 (P2-41): Smart Serial Interface #0, pin TxData0 (Output) hm2/hm2_7i80.0: IO Pin 045 (P2-43): Smart Serial Interface #0, pin TxData1 (Output) hm2/hm2_7i80.0: IO Pin 046 (P2-45): IOPort hm2/hm2_7i80.0: IO Pin 047 (P2-47): IOPort hm2/hm2_7i80.0: IO Pin 048 (P3-01): IOPort hm2/hm2_7i80.0: IO Pin 049 (P3-03): IOPort hm2/hm2_7i80.0: IO Pin 050 (P3-05): IOPort hm2/hm2_7i80.0: IO Pin 051 (P3-07): IOPort hm2/hm2_7i80.0: IO Pin 052 (P3-09): IOPort hm2/hm2_7i80.0: IO Pin 053 (P3-11): IOPort hm2/hm2_7i80.0: IO Pin 054 (P3-13): IOPort hm2/hm2_7i80.0: IO Pin 055 (P3-15): IOPort hm2/hm2_7i80.0: IO Pin 056 (P3-17): IOPort hm2/hm2_7i80.0: IO Pin 057 (P3-19): IOPort hm2/hm2_7i80.0: IO Pin 058 (P3-21): IOPort hm2/hm2_7i80.0: IO Pin 059 (P3-23): IOPort hm2/hm2_7i80.0: IO Pin 060 (P3-25): IOPort hm2/hm2_7i80.0: IO Pin 061 (P3-27): IOPort hm2/hm2_7i80.0: IO Pin 062 (P3-29): IOPort hm2/hm2_7i80.0: IO Pin 063 (P3-31): IOPort hm2/hm2_7i80.0: IO Pin 064 (P3-33): IOPort hm2/hm2_7i80.0: IO Pin 065 (P3-35): IOPort hm2/hm2_7i80.0: IO Pin 066 (P3-37): IOPort hm2/hm2_7i80.0: IO Pin 067 (P3-39): IOPort hm2/hm2_7i80.0: IO Pin 068 (P3-41): IOPort hm2/hm2_7i80.0: IO Pin 069 (P3-43): IOPort hm2/hm2_7i80.0: IO Pin 070 (P3-45): IOPort hm2/hm2_7i80.0: IO Pin 071 (P3-47): IOPort hm2/hm2_7i80.0: registered halcmd: show param hm2_7i80.0.pwmgen Parameters: Owner Type Dir Value Name 7 bit RW FALSE hm2_7i80.0.pwmgen.00.0.enable.invert_output 7 bit RW FALSE hm2_7i80.0.pwmgen.00.0.enable.is_opendrain 7 bit RW FALSE hm2_7i80.0.pwmgen.00.1.enable.invert_output 7 bit RW FALSE hm2_7i80.0.pwmgen.00.1.enable.is_opendrain 7 bit RW FALSE hm2_7i80.0.pwmgen.00.out0.invert_output 7 bit RW FALSE hm2_7i80.0.pwmgen.00.out0.is_opendrain 7 bit RW FALSE hm2_7i80.0.pwmgen.00.out1.invert_output 7 bit RW FALSE hm2_7i80.0.pwmgen.00.out1.is_opendrain 7 s32 RW 1 hm2_7i80.0.pwmgen.00.output-type 7 float RW 1 hm2_7i80.0.pwmgen.00.scale 7 bit RW FALSE hm2_7i80.0.pwmgen.01.out0.invert_output 7 bit RW FALSE hm2_7i80.0.pwmgen.01.out0.is_opendrain 7 bit RW FALSE hm2_7i80.0.pwmgen.01.out1.invert_output 7 bit RW FALSE hm2_7i80.0.pwmgen.01.out1.is_opendrain 7 s32 RW 1 hm2_7i80.0.pwmgen.01.output-type 7 float RW 1 hm2_7i80.0.pwmgen.01.scale 7 bit RW FALSE hm2_7i80.0.pwmgen.02.out0.invert_output 7 bit RW FALSE hm2_7i80.0.pwmgen.02.out0.is_opendrain 7 bit RW FALSE hm2_7i80.0.pwmgen.02.out1.invert_output 7 bit RW FALSE hm2_7i80.0.pwmgen.02.out1.is_opendrain 7 s32 RW 1 hm2_7i80.0.pwmgen.02.output-type 7 float RW 1 hm2_7i80.0.pwmgen.02.scale 7 bit RW FALSE hm2_7i80.0.pwmgen.03.out0.invert_output 7 bit RW FALSE hm2_7i80.0.pwmgen.03.out0.is_opendrain 7 bit RW FALSE hm2_7i80.0.pwmgen.03.out1.invert_output 7 bit RW FALSE hm2_7i80.0.pwmgen.03.out1.is_opendrain 7 s32 RW 1 hm2_7i80.0.pwmgen.03.output-type 7 float RW 1 hm2_7i80.0.pwmgen.03.scale 7 bit RW FALSE hm2_7i80.0.pwmgen.04.out0.invert_output 7 bit RW FALSE hm2_7i80.0.pwmgen.04.out0.is_opendrain 7 bit RW FALSE hm2_7i80.0.pwmgen.04.out1.invert_output 7 bit RW FALSE hm2_7i80.0.pwmgen.04.out1.is_opendrain 7 s32 RW 1 hm2_7i80.0.pwmgen.04.output-type 7 float RW 1 hm2_7i80.0.pwmgen.04.scale 7 bit RW FALSE hm2_7i80.0.pwmgen.05.out0.invert_output 7 bit RW FALSE hm2_7i80.0.pwmgen.05.out0.is_opendrain 7 bit RW FALSE hm2_7i80.0.pwmgen.05.out1.invert_output 7 bit RW FALSE hm2_7i80.0.pwmgen.05.out1.is_opendrain 7 s32 RW 1 hm2_7i80.0.pwmgen.05.output-type 7 float RW 1 hm2_7i80.0.pwmgen.05.scale 7 u32 RW 0x00004E20 hm2_7i80.0.pwmgen.pdm_frequency 7 u32 RW 0x00004E20 hm2_7i80.0.pwmgen.pwm_frequency halcmd: