The B883-111 CAM module with velocity compensation and the B883-101 CAM module are 800 series input/output (I/O) modules with added microprocessor control capabilities. These modules are used to automate the operation of metal shaping power presses for any mass production industry such as motor vehicle manufacture and assembly. Both models of the CAM module are physically indistinguishable and will be discussed as a single unit.

The CAM module receives a twelve-bit (plus control) parallel position code from an encoder. The module then transmits an eight-bit parallel control code to its discrete outputs based upon the received position data.

Operating instructions in command form are loaded into the module from a programmable controller by way of the I/O system. After the commands are loaded, position codes received by the module are processed and outputted by the CAM module at a 4.000 Hertz rate. This speed is in excess of the PC’s scan rate. A total of 16 output intervals may be defined and distributed at random among eight outputs.

CAM module inputs will be accepted in binary, binary coded decimal (BCD) or Gray code.

If your application requires velocity compensation, choose the B883-111 module. The B883-111 module compensates for changes in velocity.