SNAP PAC Rack Mount Controller, A/S and SIMPLE Digital
System Architecture This intelligent, flexible PAC can be used in several ways. The SNAP-PAC-R2 can provide complete cell control on its own rack with I/O modules. It can also control SNAP PAC I/O units at the same time for a larger system. Or the R2 can be used in a more extensive distributed control system as an I/O unit controlled by a SNAP PAC S-series standalone controller. Networking Two independent, 10/100 Mbps Ethernet network interfaces are included on each SNAP-PAC-R2. These interfaces have separate IP addresses and can be used to segment the control network from the company network or to provide Ethernet link redundancy in case of link failure or maintenance. In addition, the controller has an RS-232 serial port with hardware handshaking, which can be used for PPP (Point-to-Point Protocol) communication over a modem or for direct connection to serial devices. Programming and Protocols The SNAP-PAC-R2 is programmed using the included PAC Control software.
