The SNAP-PAC-EB1-W brain provides the same features as the SNAP-PAC-EB1 and adds a wireless LAN interface as well. An I/O and communications processor for your control system, the SNAP-PAC-EB1-W is designed primarily to work in distributed systems controlled by a SNAP PAC S-series or R-series controller. This brain can also be used in remote I/O with Allen-Bradley industrial PLC systems such as SLC 5/05 and MicroLogix, or other A-B PLCs using explicit messaging. The SNAP-PAC-EB1-W provides local intelligence that frees the controller (PAC or PLC) for supervisory tasks. As an I/O processor, the SNAP PAC brain independently handles functions such as latching, counting, thermocouple linearization, watchdog timers, and PID loop control. These functions continue to work on the brain even if communication with the controller is lost. The SNAP-PAC-EB1-W brain includes a wireless LAN interface that supports 802.11a, b, and g network standards. The brain can be used in infrastructure or ad-hoc mode. For security, 802.11i standards are supported, including WPA2-AES as well as WPA and WEP for backwards compatibility. In addition, the brain communicates over a standard 10/100 Mbps Ethernet network using two switched Ethernet network interfaces. Because these interfaces share a single IP address and act just like an Ethernet switch, SNAP PAC brains can be installed in a multi-drop (daisy-chain) configuration, extending the control network without the added expense of additional Ethernet network hardware. SNAP PAC brains can also be installed in a star configuration using standard, off-the-shelf Ethernet network components. The SNAP-PAC-EB1-W brain supports all the SNAP I/O analog, digital, and serial input and output modules available on the Opto 22 website. These modules can all be mixed on the same mounting rack and placed in any position on the rack. The brain and modules mount on a SNAP PAC rack, which holds up to 4, 8, 12, or 16 modules.
IEC 950: 1991-09, 89/336/EEC, 2002/95/EC, Defense Federal Acquisition Regulation Supplement