Deutsch 
English | SNAP-PAC-EB2 SNAP PAC Ethernet Brain, analog/digital/serial |
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in distributed systems controlled by a SNAP PAC S-series or R-series controller, the SNAP-PAC-EB2 can also be used as
intelligent remote I/O with Allen-Bradley industrial PLC systems. The SNAP-PAC-EB2 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
SNAP PAC controller is lost.
The SNAP-PAC-EB2 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.
In addition to I/O processing, the SNAP PAC brain communicates over a standard 10/100 Mbps Ethernet network. The
brain is equipped with 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-EB2 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.
The SNAP-PAC-EB2 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 brain instead.
NOTE: If you need a Factory Mutual-approved version of this brain, see the SNAP-PAC-EB2-FM.
| Ethernet and Serial Brains | |
| Power Requirements | 5.0–5.2 VDC at 750 mA maximum (does not include module power requirements) -W Models: 5.0–5.2 VDC at 1.0 A maximum (not including module requirements) |
| Memory | 16 MB RAM |
| Backup battery for real-time clock | Rechargeable (recharges whenever the brain has power). 5-year life when power is off. (Models manufactured before August 2007 have user-replaceable batteries. See original user guide for details or contact Product Support.) |
| Hold-down screw | Torque: 8 in-lb (0.9 N-m) |
| Operating Temperature | 0 to 60 °C |
| Storage Temperature | -40 to 85 °C |
| Humidity | 0–95% humidity, non-condensing |
| Agency certifications | (-W models only) U.S., FCC Part 15 Subpart C; Canada, IC RSS-210 (-FM models only) Factory Mutual approved All models: CE, RoHS, DFARS |
| Warranty | 30 months from date of manufacture |
| Ethernet Brains (EB) only | |
| Wired Ethernet Network Interfaces | IEEE 802.3 network, 10Base-T and 100Base-TX. Automatic MDC/MDI-X crossover (Ethernet crossover cable not required for direct connection to PC). Two switched interfaces, allowing multi-drop (daisy-chain) or standard star network configuration. |
| Maximum Ethernet Segment Length | 100 meters with Category 5 or superior UTP For 100 Mbps at this distance, use Category 5 or superior solid UTP. |
| Wireless LAN interface* Topologies Security Frequency 802.11a Frequency 802.11b/g Transmit Power Antenna Connector Roaming | Separate IP address Infrastructure, Ad-Hoc 802.11i: AES - Compatible with WPA2 Personal, TKIP - Compatible with WPA Personal, WEP. Note: TKIP/AES security is not supported in Ad-Hoc mode. 5.180–5.24 GHz, 5.745–5.825 GHz 2.412–2.472 GHz, 2.484GHz 15 dBm maximum Reverse polarity SMA (RP-SMA or RSMA) Supported within an SSID (Service Set Identifier) only |
| Serial Brains (SB) only | |
| Network interfaces | RS-485, 2- or 4-wire, twisted pair(s), with shield |
| Serial data rates | 300 baud to 230.4 Kbaud |
| Range: Serial multidrop | 32 stations maximum on a segment (including PC, controller, repeaters, and I/O units); up to 3000 ft (914 m) on a segment |
| * Requires Wired+Wireless model (SNAP-PAC-EB1-W or SNAP-PAC-EB2-W) | |