Accessory 34AA
Table of Contents i
Table of Contents
INTRODUCTION ....................................................................................................................................................... 1
Parity Checking ......................................................................................................................................................... 1
Optical Isolation ........................................................................................................................................................ 2
Port Headers .............................................................................................................................................................. 2
SPECIFICATIONS ..................................................................................................................................................... 3
Agency Approval and Safety .................................................................................................................................... 3
ACC-34AA HARDWARE SPECIFICATIONS ........................................................................................................ 5
Power Supply and Opto-Isolation Considerations ..................................................................................................... 6
ACC-34AA LED Indicators ...................................................................................................................................... 6
ACC-34AA Watchdog Timer ................................................................................................................................... 6
J1A and J1B .......................................................................................................................................................... 6
TB1 ....................................................................................................................................................................... 6
TB2 ....................................................................................................................................................................... 6
TB3 ....................................................................................................................................................................... 6
TB4 ....................................................................................................................................................................... 7
TB5 ....................................................................................................................................................................... 7
TB6 ....................................................................................................................................................................... 7
TB7 ....................................................................................................................................................................... 7
TB8 ....................................................................................................................................................................... 7
TB9 ....................................................................................................................................................................... 7
ACC-34AA Options .................................................................................................................................................. 7
Option1 ................................................................................................................................................................. 7
Option2 ................................................................................................................................................................. 7
Option3 ................................................................................................................................................................. 7
Jumper Specifications................................................................................................................................................ 8
E1-E8*: Sinking or Sourcing Input Select ........................................................................................................... 8
E9-E16*: Sinking or Sourcing Output Select ...................................................................................................... 8
E22: ACC-34AA Watchdog Timer Jumper ........................................................................................................... 8
E23: ACC-34AA Standard/Alternate Read ........................................................................................................... 8
Multiplex Address Map ............................................................................................................................................. 8
SW1 DIP Switch Setting ........................................................................................................................................ 9
INPUT AND OUTPUT PORTS ............................................................................................................................... 10
M-Variable Assignments ......................................................................................................................................... 10
Processing ACC-34x Inputs & Outputs .................................................................................................................. 11
When to Access ACC-34x ...................................................................................................................................... 11
ACC-34X SETUP ...................................................................................................................................................... 12
Image Word Variables............................................................................................................................................. 12
PMAC Location of Image Words............................................................................................................................ 12
Open Memory — Standard PMAC ..................................................................................................................... 12
DPRAM — Standard PMAC ............................................................................................................................... 12
Turbo PMAC Location of Image Words ................................................................................................................. 13
Open Memory Turbo PMAC ............................................................................................................................... 13
DPRAM Standard Turbo PMAC ......................................................................................................................... 13
Preventing Conflicts in Output Image Words ......................................................................................................... 13
Image Words ........................................................................................................................................................... 15
Individual Pieces of Image Words .......................................................................................................................... 16
PMAC Memory Locations .................................................................................................................................. 16
PMAC Dual Ported RAM Locations ................................................................................................................... 16
USING ACC-34 WITH MACRO STATION .......................................................................................................... 18
MS{anynode},MI90: Multiplexer Port #1 Read Address ................................................................................... 19