EXCLUSIVE FORUM FOR MACHINE DISMANTLERS AND REPAIR PEOPLE > Hammond
> Self Propelled
> Steering Components
> Modicon ( aeg ) comp 984 cpu 8K 1XMB mb+ pc-A984-145
Modicon ( aeg ) comp 984 cpu 8K 1XMB mb+ pc-A984-145
Compact Programmable Controller
This is a used, working Controller recently removed from service a part of a large corporate update. It is in good cosmetic and working condition.
Also included is a PDF manual on CD for The 984 Controller series (including this model).
Here is some technical information from the manufacturer:
s Compact Programmable Controllers bring the high performance, application flexibility, and programming compatibility of the 984 family to the small controller market. As a controller in the 984 family, Compacts implement a common instruction set for developing user logic, standard Modbus communication functionality, and optional Modbus Plus communication capabilities. The Compact Controllers share the following 984 processing architecture features:
* A memory section that stores user logic, state RAM, and system overhead in battery-backed CMOS RAM and holds the system s Executive firmware in nonvolatile PROM or FLASH RAM
* A CPU section that solves the user logic program based on the current input values in state RAM, then updates the output values in state RAM
* An I/O processing section that directs the flow of signals from input modules to state RAM and provides a path over which output signals from the CPU s logic solve are sent to the output modules
A communications section that provides one or more port interfaces. These interfaces allow the controller to communicate with programming panels, host computers, hand-held diagnostic tools and other master devices, as well as with additional controllers and other nodes on a Modbus (or Modbus Plus) network
This architectural consistency allows the Compact Controllers to achieve machine compatibility with the other controllers in the family. This allows sequences of user logic created on a mid-range or high performance controller, such as a 984B or a 984-685 Controller, to be relocated to a Compact. It also assures that user logic generated for this small controller is upwardly compatible to larger 984(s). Thus, a Compact can be easily integrated into a multi-controller network
The A984-145 CPU with 8K words of user memory, 2K words State RAM, 10K words total, a Modbus port, and a Modbus Plus network interface, 8Mhz CPU operation.
The A984-145 solves logic at the rate of 4.25 ... 6 ms/K nodes of standard ladder logic.
These models have front panels, with two communications interfaces, an EEPROM auxiliary memory socket, two slide switches for memory protection and communication parameter selection, five LED indicators, and a terminal strip for 24 Vdc power.
The A984-145 (Compact Controller comes with 1 Modbus communication port, 1 Modbus Plus port, 8.0K words of user memory, 2K state RAM, 8Mhz CPU, and operating temperature 0 ... 60 degrees C).
