MACRO-CPU Hardware Reference
Assemblies of 3U-format boards can be made with either of two CPU processor boards – a 3U MACRO-CPU board, or a 3U Turbo PMAC2 CPU board. Most other 3U-format boards, labeled “Accessory” boards, can be used with either CPU board.
•When the 3U MACRO-CPU board is used, the resulting assemblies are called “UMAC MACRO” or "3U MACRO Stack."
•When the 3U Turbo PMAC2 CPU board is used, the resulting assemblies are called “UMAC Turbo” or "Turbo Stack."
Refer to the "UMAC & 3U Stack Products Selection Guide" for more detailed descriptions of how the rack and stack products are integrated.
UMAC and 3U-Stack Products
UMAC Products | Stack Products |
UMAC Turbo | UMAC MACRO | Turbo Stack | MACRO Stack |
The UMAC Turbo is composed of
a3U-format Turbo PMAC2 CPU board and a set of accessory boards in 3U-format, all plugged in a common UBUS backplane and installed inside a 3U format rack. A PC/104 computer and several
optional communication accessories (including all of the major FieldBuses, MACRO and Ethernet) can be installed inside the
UMAC system providing convenient flexibility and virtually unlimited expandability.
The UMAC MACRO is composed of a MACRO Interface/CPU board and a set of accessory boards in 3U- format, all plugged in a common UBUS backplane and installed inside a 3U format rack. The UMAC MACRO must receive commands from an external MACRO compatible device like a PMAC2 Ultralite or a UMAC Turbo system. The UMAC MACRO does not support a PC/104 or communication accessories and it is preferred for distributed control over a MACRO ring connection.
The Turbo stack is composed of a 3U-format Turbo PMAC2 CPU board and a set of accessory boards in 3U-format plugged to it in a stack configuration. The Turbo stack configuration is less expensive than the UMAC Turbo system but it is limited to eight axes of motion control versus 32 axes on a UMAC Turbo system. The Turbo Stack is selected over a UMAC Turbo system because is more compact, allowing its installation inside already existing cabinets with some space limitations.
The MACRO stack is composed of a MACRO Interface/CPU board and a set of accessory boards in 3U-format plugged to it in a stack configuration. The UMAC MACRO must receive commands from an external MACRO compatible device like a PMAC2 Ultralite or a UMAC Turbo system. The MACRO Stack is selected over a UMAC MACRO system because it is more compact, allowing its installation inside already existing cabinets with some space limitations.
