Optional Interfaces | Tank Gauge Transmitter |
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10.5 4000WBFMO
This option can co-exist along side Whessoe Bus™ transmitters, the signal format is a current loop style transmission signal. Transmitter is user selectable between 1 and 127 with basic baud rates stop and parity bits. The protocol is referred to as Whessmatic 550, which was widely used by the UK for their Intelligent Tang gauging systems. The ATT meets and exceeds the requirements of the Whessmatic 550 format because of its redundant dual port capabilities, and the bipolar signal circuitry design. The advanced circuitry allows the ATT to communicate without error at 9600 baud through 2 data ports simultaneously. A typical transmitter using current loop signal format nominally communicates at 300 to 1200 baud at maximum.
10.64000GMFMO
Basically this is identical to the standard release of the 400048FMO, a MODBUS protocol device communicating over RS-485 data lines. GSI, a tank gauging systems manufacturer has re-mapped level and temperature integer registers to non-standard MODBUS locations. This version ATT allows it to co-exist along side GSI transmitters and gauging systems with response data as expected.
62 | Installation and Operations Manual |