*** NOTE: This part is obsolete and no longer available when current stock is depleted. ***
The SNAP-PAC-EB2-W brain provides the same features as the SNAP-PAC-EB2 and adds a wireless LAN interface as well.
An I/O and communications processor for your control system, the SNAP-PAC-EB2-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 MicroLogix, or other A-B PLCs using explicit messaging.
The SNAP-PAC-EB2-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, 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-EB2-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. (Note that the wireless LAN interface does not provide access to other brains in a daisy-chain configuration, as this interface is independent.) SNAP PAC brains can also be installed in a star configuration using standard, off-the-shelf Ethernet network components.
The SNAP-PAC-EB2-W brain can run on a wireless LAN, on a wired network, or on both at once.
The SNAP-PAC-EB2-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.
NOTE: In order to use Opto 22 serial modules with an EB2 brain, the I/O should be controlled by a SNAP PAC controller running a PAC Control strategy.
Since the same rack and I/O are used regardless of network, you can switch from wired to wireless and back again without having to add parts, reconfigure I/O, or change field wiring.
The SNAP-PAC-EB2-W brain provides basic digital functions but does not offer high-speed digital functions; if you need high-speed counting (up to 20 KHz depending on the module), quadrature counting, pulse measurement, and frequency and period measurement, choose the SNAP-PAC-EB1-W
The SNAP-PAC-EB2-W brain supports communication using multiple protocols running simultaneously over Ethernet. Most customers use the PAC Project software suite for control, monitoring, and data acquisition. At the same time, you can communicate using other methods, including EtherNet/IP, Modbus/TCP, SNMP, SMTP, FTP, and OptoMMP. Communication with OPC 2.0-compliant clients is available through OptoOPCServer.
If you don't need wireless capability, see the SNAP-PAC-EB2
For a complete list of features and specifications, see the SNAP PAC Brains Data Sheet
Compare SNAP PAC controllers and brains
If you are not using PAC Project software and a SNAP PAC controller with this brain and instead need to communicate directly with it, see the SNAP PAC .NET OptoMMP SDK
Build your system in the SNAP I/O Configurator