Opto22 SNAP-B3000MODBUS

SNAP-B3000-MODBUS SNAP Analog/Digital Brain, Modicon Modbus Protocol

The SNAP-B3000-MODBUS brain is a high-performance processor designed to remotely control and acquire a mix of
SNAP analog and digital I/O modules on a B-series rack. The brain communicates to any Modbus master device via RS-
485 using the Modbus slave protocol in both ASCII and RTU modes. Brain functions include latching, counting, on/off
status, and thermocouple linearization.
 

Power Requirements	5.0–5.2 VDC at 1.0A max.
Operating Temperature	0 to 70 °C, 95% humidity, non-condensing
Storage Temperature	-40 to 85 °C
CPU	16-bit Intel 80C196 I/O processor
Communications Interface	RS-485/422, 2- or 4-wire, twisted pair(s), with shield
Data Rates	300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 76800, and 115200 baud
Range: (Multidrop Mode)	Up to 3,000 feet total length or 32 stations maximum without repeaters
CounterFrequency Measurement	Maximum Rate: 20 kHz Minimum Pulse Width: 10 msec 16 bit
LED Indicators	RUN (Power On), RCV (Receive), and XMT (Transmit)
Options: Jumper Selectable	Address, Communication baud rate, RTU/ASCII