Features

• Single slot Coprocessor

• Dual Tasking

• MegaBasic

• CCM2 Protocol

• 12 Mhz, 80C186 microprocessor

• 90% of an IBM AT performance

• Up to 96 Kbytes battery-backed CMOS logic and

data memory on board

• Supports up to 512 Kbytes optional expansion memory

• Programmed by IC647. IC640 or IBM-compatible

Personal Computer

• Two RS-422/RS-485 or RS-232 serial ports

• High performance access to PLC memory

• Real time calendar clock synchronized to PLC

• Reset pushbutton

• Three Status LEDs

• Soft Configuration (No dip switches or jumpers)

with MS-DOS or Windows based programming

software configuration function

• Simultaneous communications on both ports at up

to 9.6 Kbaud, or up to 19.2 Kbaud individually.

Expansion Memory

The PCM can operate with or without an expansion

memory daughter board.  The base memory on the

PCM board has up to 95 Kbytes user memory.  The ex

pansion memory daughter board permits expansion of

program/data memory by 64. 128. 256 or 512 Kbytes.

The battery which supports this memory is located on

the base board housing as shown in figure 2.