Command Bus

The Command Bus (C-BUS) (Figure 2-2) is

a parallel digital communications bus connecting

the Main Processor to the controllers. The C

BUS runs under a protocol established by a

unique Industrial Indexing Systems’ operating

system and is accessed by the user’s

Macroprogram.

The C-BUS allows Macroprogram

commands to be sent from the Main Processor to

the controllers.

It also allows data to be

exchanged between the Main Processor and the

controllers.

Controller Slots

The 8 controller slots (Figure 2-3) accept

any controller in any combination. The controllers

are; ACR-850 Resolver Axis Controller, ACE-850

Encoder Axis Controller, MCF-850 Multifunction

Controller, HPL-850 High Performance Limit

Switch Controller, or ACM-850 Analog Controller.

The controller slots are connected to 2

Angle Buses, On-board Input Modules, and the

C-BUS. Power is supplied to the controllers

through the controller slots. A 2.6KHz Resolver

Reference signal is supplied through the

controller slots to the ACR-850 Resolver Axis

Controllers.