描述:
SNAP PAC brains are compact, high-performance processors that connect real-world analog, digital, and serial devices with Ethernet or industrial RS-485 networks for monitoring, control and data acquisition. A SNAP PAC brain on a mounting rack with I/O modules is called an I/O unit. Each I/O unit can operate independently or as an intelligent, distributed node on a larger network controlled by a SNAP PAC controller. SNAP PAC brains are available for use on both Ethernet and RS-485/422 serial networks. Ethernet-based SNAP PAC brains feature pure TCP/IP transport protocol, two switched 10/100 Mbps Ethernet interfaces, and multiple simultaneous protocols such as Modbus/TCP, SNMP and SMTP. SNAP PAC Brains for RS-485/422 Serial Networks * The SNAP-PAC-SB1 Brain Works with Analog, Digital, and Serial Signals, and Supports High-Speed Digital Functions * The SNAP-PAC-SB2 Brain Works with Analog, Digital and Serial Signals SNAP PAC brains for serial networks support 2-wire or 4-wire RS-485/422 communication.