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Modbus Organization

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Type:  I/O Module
Description:  SeaI/O-420 modules provide 16 optically isolated inputs and 8 SPDT Form C relay outputs and connect to your host via Wireless 802.11b/g (Modbus TCP - 420W), Ethernet (Modbus TCP - 420E), USB (420U), RS232 (Modbus RTU - 420S), or RS485 (Modbus RTU - 420M). Inputs can range from 5-24VDC and provide 300V isolation to ground. Each output offers normally open and normally closed contact connections via 3.5mm field removable terminal blocks. Communicate using industry standard Modbus RTU or Modbus TCP protocols or use the Sealevel SeaMAX software libraries from your application program. The SeaI/O-420 module is powered from your 9-30VDC source, or select from a variety of power supply options. Up to 246 additional modules can be added using convenient pass-through connectors.
Connectivity:  Modbus RTU, Modbus TCP/IP
Features:  16 optically isolated inputs; 8 SPDT Form C relays; +5V to +24V input range; Max contact voltage: 60VDC; Max contact current: 2A; Removable screw terminals simplify field wiring; Input power via terminal block or modular connector; DIN rail or table mount.
Specifications:  Number of I/O: 16 Isolated Inputs / 8 Form C Outputs; Power Requirement: 9-30 VDC; Input Isolation: 300V; Input Range: 5-24 VDC; Contact Voltage: 60VDC max.; Contact Current: 2A max.; Contact Operate Time: 2ms max.; Contact Bounce Time: 7ms max.; Contact Release Time: 1ms max.; Operating Temperature: 0 - +70?C; Storage Temperature: -50? - +105?C; Humidity Range: 10 - 90% R.H.; Dimensions: 7.6" (L) x 5.2" (W) x 1.4" (H).