PMAC-PCI Hardware Reference
38
Mating Connectors
OPEN PLC 1 CLEAR
; PLC 1 is first to run after power-up/reset
M990=$008008
; Select ANAI00 and ANAI08 (if present) bipolar
M991=$009009
; Select ANAI01 and ANAI09 (if present) bipolar
M992=$00A00A
; Select ANAI02 and ANAI10 (if present) bipolar
M993=$00B00B
; Select ANAI03 and ANAI08 (if present) bipolar
M994=$00C00C
; Select ANAI04 and ANAI08 (if present) bipolar
M995=$00D00D
; Select ANAI05 and ANAI08 (if present) bipolar
M996=$00E00E
; Select ANAI06 and ANAI08 (if present) bipolar
M997=$00F00F
; Select ANAI07 and ANAI08 (if present) bipolar
DISABLE PLC 1
; So will not run again
CLOSE
Once this setup has been made, PMAC1 PCI will automatically cycle through the analog inputs, copying
the converted digital values into RAM. These image registers can then be read as if they were the actual
A/D converters. For user program use, the image registers would be accessed with M-variables.
Suggested definitions are:
M1000->Y:$0708,0,12,U
; ANAI00 image register; from JANA pin 1
M1001->Y:$0709,0,12,U
; ANAI01 image register; from JANA pin 2
M1002->Y:$070A,0,12,U
; ANAI02 image register; from JANA pin 3
M1003->Y:$070B,0,12,U
; ANAI03 image register; from JANA pin 4
M1004->Y:$070C,0,12,U
; ANAI04 image register; from JANA pin 5
M1005->Y:$070D,0,12,U
; ANAI05 image register; from JANA pin 6
M1006->Y:$070E,0,12,U
; ANAI06 image register; from JANA pin 7
M1007->Y:$070F,0,12,U
; ANAI07 image register; from JANA pin 8
M1008->Y:$0708,12,12,U
; ANAI08 image register; from JANA pin 9
M1009->Y:$0709,12,12,U
; ANAI09 image register; from JANA pin 10
M1010->Y:$070A,12,12,U
; ANAI10 image register; from JANA pin 11
M1011->Y:$070B,12,12,U
; ANAI11 image register; from JANA pin 12
M1012->Y:$070C,12,12,U
; ANAI12 image register; from JANA pin 13
M1013->Y:$070D,12,12,U
; ANAI13 image register; from JANA pin 14
M1014->Y:$070E,12,12,U
; ANAI14 image register; from JANA pin 15
M1015->Y:$070F,12,12,U
; ANAI15 image register; from JANA pin 16
Compare Equal Outputs Port (JEQU Port)
The compare-equals (EQU) outputs have a dedicated use of providing a signal edge when an encoder
position reaches a pre-loaded value. This is useful for scanning and measurement applications.
Instructions for use of these outputs are covered in detail in the PMAC’s User Manual.
Outputs can be configured sinking or sourcing by replacing the chips U37 or U53 and configuring the
jumpers E101-102 or E114-E115. The voltage levels can be individually configured by removing resistor
packs RP43 or RP56 and connecting an external pull-up resistor in each output to the desired voltage
level.
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